Cell body reorganization in the spinal cord after elective surgery to treat sweaty palms

The amount of compensatory sweating depends on the patient, the damage that the white rami communicans incurs, and the amount of cell body reorganization in the spinal cord after surgery.
Other potential complications include inadequate resection of the ganglia, gustatory sweating, pneumothorax, cardiac dysfunction, post-operative pain, and finally Horner’s syndrome secondary to resection of the stellate ganglion.
www.ubcmj.com/pdf/ubcmj_2_1_2010_24-29.pdf

Saturday, August 23, 2014

The second thoracic sympathetic ganglion was most commonly located (50%) in the second intercostal space

anatomic variations of the T2 nerve root

6 (9.1%) sides showed a single large ganglion formed by the stellate and the second thoracic sympathetic ganglia. The second thoracic sympathetic ganglion was most commonly located (50%) in the second intercostal space. Conclusion: The anatomic variations of the intrathoracic nerve of Kuntz and the second thoracic sympathetic ganglion were characterized in human cadavers.
Journal of thoracic and cardiovascular surgery Y. 2002, vol. 123, No. 3, pages 498-501 [bibl. : 14 ref.
http://www.refdoc.fr/Detailnotice?idarticle=9466218

Wednesday, August 20, 2014

after sympathectomy "He becomes more quiet, less impressionable, less agitated, tremor diminishes..."

Everyone seems to agree that when sympathectomy is successful the subjective symptoms of the patient show a considerable improvement. He becomes more quiet, less impressionable, less agitated, tremor diminishes, tachycardia, however, is little influenced or not at all, and the same is true for goiter.
   In conclusion it may be said that the results obtained from sympathectomy when present are very immediate. The ocular symptoms are the ones most happily influenced by the operation; the others such as nervousness, tachycardia, and goiter are problematical.
   Remote Results.- In going over the cases operated by Jaboulay as far back as twelve and fourteen years, A. Charlier was able to find that a number of his patients had been cured completely. He was able to retrace 18 out of the 31 cases operated by Jaboulay from four to fourteen years before. Three of them were completely cured, 9 of them were so ameliorated that the subjective cure was a complete one, the objective cure, however, being incomplete; the 6 remaining cases were doubtful. All these patients experienced considerable benefit to their nervous symptoms; improved and no trophic disturbances of any sort followed as the result of sympathectomy.

Saturday, August 9, 2014

Misleading information about ETS surgery: Westside Dermatology

Excessive sweating treatments | Westside Dermatology: "A variety of surgical approaches have been used to treat severe underarm sweating, but they are usually reserved for the most extreme cases that do not respond to other treatments.Endoscopic thoracic sympathectomy involves surgical interuption of the nerves signals between the spinal column and the sweat glands in the affected area.  This procedure is conducted in an operating theatre by a specialist Thoracic surgeon or a neurosurgeon."


Drawbacks of thoracoscopic sympathectomy | The BMJ

Drawbacks of thoracoscopic sympathectomy | The BMJ: "BMJ 2005; 330 doi: http://dx.doi.org/10.1136/bmj.330.7500.1127 (Published 12 May 2005)
Cite this as: BMJ 2005;330:1127
Article
Related content
Article metrics
Rapid responses
Response
Drawbacks of thoracoscopic sympathectomy

Side effects after thoracoscopic sympathectomy have been discussed
widely in Taiwan society in the past few months. Lots of people in Taiwan
suffer from hyperhidrosis palmaris. Thoracoscopic sympathectomy is covered
by our National Health Insurance, and yet patient billing for this
operation does not exceed US$ 60. This is why this operation is so popular
here (1). However, patients with serious compensatory sweating must change
clothes several times a day (some complain they change as often as 10
times a day), resulting in a serious impact on work and social
interaction. Patients suffering from such serious side effects in Taiwan
have formed a support group based on an Internet discussion forum to
request the government to take this problem seriously
(http://home.pchome.com.tw/family/vivi12175/). Since October 2004, The
Department of Health Executive, Yuan, Taiwan, has prohibited surgeons from
performing this operation on patients under 20 years of age. To our
knowledge, this type of Internet-based support group also exists in
England (http://www.noetsuk.com/), Sweden
(http://home.swipnet.se/sympatiska/index3.htm), Australia (http://www.ets-
sideeffects.netfirms.com/), Spain
(http://www.terra.es/personal8/hiperhidrosis/principal.htm) and Japan
(http://www.geocities.jp/etscontroversialop/index.html). Thoracoscopic
sympathectomy is a relatively safe and simple procedure, however, the side
effects are potentially devastating. All surgeons who do the operation and
individuals preparing to undergo this treatment should know this well.
1.Lin TS, Wang NP, Huang LC. Pitfalls and complication avoidance
associated with transthoracic endoscopic sympathectomy for primary
hyperhidrosis (analysis of 2200 cases). Int J Surg Investig 2001; 2: 377-
85."


Friday, August 8, 2014

An absence of afferent feedback concerning autonomically generated bodily states was associated with subtle impairments of emotional responses

nature neuroscience • volume 4 no 2 • february 2001 

Neuroanatomical basis for first- and second-order representations of bodily states
H. D. Critchley1,2, C. J. Mathias2,3 and R. J. Dolan1

Thursday, August 7, 2014

“In no other area than Sympathetic Surgery, disagreement, conflicting opinion, different definitions and misleading interpretations of the data exist"

8th ISSS Symposium New York, 2009: 

“In no other area than Sympathetic Surgery, disagreement, conflicting opinion, different definitions and misleading interpretations of the data exist. Mainly regarding surgical indications, the level and extent of the procedure and results evaluation”.

ATS Expert Consensus for the Surgical Treatment of Hyperhidrosis powerpoint presentation  – October 6, 2012, XVI Congreso Boliviana de Cirugia Cardiaca, Toracica y Vascular, Santa Cruz de la Sierra, Bolivia.


or:

The Effects of Thoracic Sympathotomy on Heart Rate Variability in Patients with Palmar Hyperhidrosis

Compared with preoperative variables, there was a significant increase in the number of adjacent normal R wave to R wave (R- R) intervals that differed by more than 50 ms, as percent of the total number of normal RR intervals (pNN50); root mean square difference, the square root of the mean of the sum of squared differences between adjacent normal RR intervals over the entire 24-hour recording; standard deviation of the average normal RR in- terval for all 5-minute segments of a 24-hour recording (SDANN) after thoracic sympathotomy. Low frequencies (LF, 0.04 to 0.15 Hz) decreased significantly.
Yonsei Med J 53(6):1081-1084, 2012

http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3481380/pdf/ymj-53-1081.pdf 

Wednesday, August 6, 2014

"synaptic reorganization in the sympathetic chain or spinal cord after sympathotomy" - MAYO Clinic

"synaptic reorganization in the sympathetic chain or spinal cord after sympathotomy" - MAYO Clinic
http://www.mayoclinic.org/documents/mc5520-06pdf/DOC-20077566"


Monday, August 4, 2014

The most common complication is post-sympathectomy neuralgia

"The most common complication is post-sympathectomy neuralgia"



Neural Blockade in Clinical Anesthesia and Management of Pain By Michael J. Cousins,



 "The most common complication is post-sympathectomy neuralgia.... The reported incidence has varied widely between studies, from around 30% to 50%. Whether the sympathectomy is achieved by open surgical resection or percutaneous techniques does not seem to influence the incidence."



Vascular Surgery: Principles and Practice by Robert W. Hobson, Samuel E. Wilson, Frank J. Veith - 2004 - Medical - 1600 pages



Postsympathectomy neuralgia is a constant and annoying feature of sympathectomy, and the patient should be forewarned."

Thursday, July 31, 2014

significant change after sympathectomy: QT dispersion was significantly reduced 1 month after surgery and the dispersion was further diminished 2 years later

The HRV analysis showed a significant change of indices reflecting sympatho-vagal balance indicating significantly reduced sympathetic (LF) and increased vagal (HF, rMSSD) tone. These changes still persisted after 2 years. Global HRV increased over time with significant elevation of SDANN after 2 years. QT dispersion was significantly reduced 1 month after surgery and the dispersion was further diminished 2 years later.
http://www.sciencedirect.com/science/article/pii/S0167527399001011

Sunday, July 27, 2014

Inflammation in dorsal root ganglia after peripheral nerve injury: Effects of the sympathetic innervation

Following a peripheral nerve injury, a sterile inflammation develops in sympathetic and dorsal root ganglia (DRGs) with axons that project in the damaged nerve trunk. Macrophages and T-lymphocytes invade these gan- glia where they are believed to release cytokines that lead to hyperexcitability and ectopic discharge, possibly contributing to neuropathic pain. Here, we examined the role of the sympathetic innervation in the inflammation of L5 DRGs of Wistar rats following transection of the sciatic nerve, comparing the effects of specific surgical in- terventions 10–14 days prior to the nerve lesion with those of chronic administration of adrenoceptor antago- nists. Immunohistochemistry was used to define the invading immune cell populations 7 days after sciatic transection. Removal of sympathetic activity in the hind limb by transecting the preganglionic input to the rele- vant lumbar sympathetic ganglia (ipsi- or bilateral decentralization) or by ipsilateral removal of these ganglia with degeneration of postganglionic axons (denervation), caused less DRG inflammation than occurred after a sham sympathectomy. By contrast, denervation of the lymph node draining the lesion site potentiated T-cell in- flux. Systemic treatment with antagonists of Î±1-adrenoceptors (prazosin) or Î²-adrenoceptors (propranolol) led to opposite but unexpected effects on infiltration of DRGs after sciatic transection. Prazosin potentiated the influx of macrophages and CD4T-lymphocytes whereas propranolol tended to reduce immune cell invasion. These data are hard to reconcile with many in vitro studies in which catecholamines acting mainly via Î²2-adrenoceptors have inhibited the activation and proliferation of immune cells following an inflamma- tory challenge. 


Autonomic Neuroscience: Basic and Clinical 182 (2014) 108117 

Neuroscience Research Australia, Randwick, NSW 2031, and the University of New South Wales, Sydney, NSW 2052, Australia

Saturday, July 26, 2014

Limited sympathectomy does not reduce postoperative compensatory sweating

Endoscopic transthoracic sympathectomy for upper limb hyperhidrosis: Limited sympathectomy does not reduce postoperative compensatory sweating - Journal of Vascular Surgery: "Journal of Vascular Surgery
Volume 37, Issue 1, Pages 124–128, January 2003
Endoscopic transthoracic sympathectomy for upper limb hyperhidrosis: Limited sympathectomy does not reduce postoperative compensatory sweating******



In the 84 patients with palmar hyperhidrosis, eight underwent T1-T2 resection, four T1-T3 resection, eight T2-T3 resection, and 64 T2-T4 resection. In the 43 patients with palmar and axillary hyperhidrosis, eight underwent T1-T5 resection and 35 T2-T5 resection. The seven patients with isolated axillary hyperhidrosis underwent T3-T5 sympathectomy. No deaths occurred; one conversion for bleeding, one permanent Horner's syndrome, and six minor complications did occur. The initial cure rate was 99.2%. The initial satisfaction rate was 97%. The mean follow-up period was 44.3 months (range, 7 to 100 months), and complete follow-up was available in 132 patients (98.5%). Ninety-five patients (71.9%) had compensatory sweating develop. Seventy patients (53%) judged their compensatory sweating to be minor and intermittent, and 25 patients (19%) judged it severe (16% embarrassing, 3% disabling). On univariate and multivariate analysis, the extent of denervation was not associated with the occurrence or the severity of compensatory sweating. The late satisfaction rate was 91.5%. Compensatory sweating and temporary relief/recurrence were equally considered to be the main causes of dissatisfaction. Conclusion: Compensatory sweating was the most common long-term complication of thoracodorsal sympathectomy for primary hyperhidrosis. Its incidence and severity were not associated with the extent of sympathectomy. (J Vasc Surg 2003;37:124-8.)"


sympathectomy and parasympathectomy lead to hyperfunction of the serotoninergic system and pathology

We studied the balance of activity of sympathetic, parasympathetic, and serotoninergic divisions of the autonomic nervous system in the regulation of the heart function in rabbits. High activities of the sympathetic and parasympathetic system are associated with antagonistic interactions between them. Moderation of activity of these systems could be accompanied by activation of the serotoninergic system. Physiological sympathectomy and parasympathectomy lead to hyperfunction of the serotoninergic system and pathology. 

Bulletin of Experimental Biology and Medicine, Vol. 140, No. 5, 2005 PHYSIOLOGY

Sunday, July 20, 2014

lowering of heart rate and blood pressure, decreased responsiveness of the cardiocirculatory system to emotional stimuli after sympathectomy

"lowering of heart rate and blood pressure, decreased responsiveness of the cardiocirculatory system to emotional stimuli: it is an effect that is especially noticeable in patients operated on for erythrophobia and less evident in those operated for hyperhidrosis. It is almost always a welcome phenomenon, which contributes considerably to the feeling of tranquility and serenity that generally supersedes anxiety. Excessive reduction in blood pressure or heart rate may lead to a state of weakness and fatigue that may require removal of the clips in approx. 2%. This rare state of asthenia contrasts with the increased energy and vigor that most patients experience when they feel freed from overwhelming anxiety."    

"The neurovegetative nervous system is, however, very dynamic and tends to adapt continuously during lifetime to all environmental or organic changes and conditions. Therefore, it reacts very individually when a reflex circuit has been blocked. The resulting side effects cannot be predicted in detail, and though they in most patients are relatively mild or even absent, there is a small group of patients developing heavy side effects. Therefore, surgery should only be considered in carefully selected cases in whom non-invasive treatment has failed and in whom the detrimental consequences of erythrophobia regarding the psychosocial situation and the quality of life is such to justify more adverse side effects. It should also always be kept in mind that therapy can be ineffective and that, in the long term, 10-15% of patients do not consider themselves satisfied with the result of surgery. In any case, the author prefers the use of a potentially reversible surgical technique (ESB), instead of destructive techniques (cutting, coagulation, removal of ganglia)."  
http://www.chir.it/en_erythrophobia.php

Monday, July 7, 2014

The sympathoadrenal system is one of the major pathways mediating physiological responses in the organism

The sympathoadrenal system is one of the major pathways mediating physiological responsesin the organism. The sympathoadrenal system plays an important role in the regulation of blood pressure, glucose, sodium and other key physiological and metabolic processes. In many disease states, the sympathoadrenal system is affected and by corrective physiological responses the sympathoadrenal system preserves homeostasis. Many therapeutic agents are either adrenergic activators or inhibitors. Therefore, measurements of the components of the sympathoadrenal system and the activity of the sympathoadrenal system have been of major interest for decades.
Levels of plasma (p-) noradrenaline (NA), the sympathetic neurotransmitter, have been used to indicate activity of the neuronal sympathoadrenal component, while adrenaline (Adr) levels indicate activity of the hormonal adrenomedullary component of the sympathoadrenal system (Christensen 1991, Goldstein 1995, Christensen & Norsk 2000).
Based upon the absence of an arterio-venous increase in p-DOPA concentration in sympathectomized limbs and a decrease in p-DOPA after inhibition of tyrosine hydroxylase (TH) in dogs, it was concluded that DOPA can pass across sympathetic neuronal membranes to reach the general circulation and furthermore, that p-DOPA may be related to regional rate of tyrosine hydroxylation (Goldstein et al 1987a). P-DOPA only demonstrated minimal changes during stimuli that produced significant changes in p-NA. Due to partly parallel changes of p-NA and p-DOPA, however, it was believed that p-DOPA reflect the rate of catecholamine synthesis and that p-DOPA was a simple and direct index of TH activity in vivo (Eisenhofer et al 1988, Goldstein & Eisenhofer 1988, Garty et al 1989b). It was inferred that p-DOPA levels may be an index of sympathetic activity.
Department of Internal Medicine and Endocrinology, Herlev University Hospital, Herlev.
Correspondence: Ebbe Eldrup, Bolbrovænge 29, DK-2960 Rungsted Kyst.
Official opponents: Jens H. Henriksen, professor, MD, and Jan Abrahamsen, MD.
Dan Med Bull 2004;51:34-62.

Saturday, July 5, 2014

"Sympathectomy can enhance or suppress antibody production"

Neuropsychiatry - Google Books: Neuropsychiatry
 edited by Randolph B. Schiffer, Stephen M. Rao, Barry S. Fogel"




The mechanisms by which sympathectomy leads to increased local bone loss is unknown.

In vivo effects of surgical sympathectomy on intra... [Am J Otol. 1996] - PubMed - NCBI: "Am J Otol. 1996 Mar;17(2):343-6.
In vivo effects of surgical sympathectomy on intramembranous bone resorption.
Sherman BE1, Chole RA.
Author information
1Department of Otolaryngology--Head and Neck Surgery, School of Medicine, University of California, Davis, USA.
Abstract
Bone modeling and remodeling are highly regulated processes in the mammalian skeleton. The exact mechanism by which bone can be modeled at a local site with little or no effect at adjacent anatomic sites is unknown. Disruption of the control of modeling within the temporal bone may lead to various bone disease such as otosclerosis, osteogenesis imperfecta, Paget's disease of bone, fibrous dysplasia, or the erosion of bone associated with chronic otitis media. One possible mechanism for such delicate control may be related to the ubiquitous and rich sympathetic innervation of all periosteal surfaces. Previous studies have indicated that regional sympathectomy leads to qualitative alterations in localized bone modeling and remodeling. In this study, unilateral cervical sympathectomy resulted in significant increases in osteoclast surface and osteoclast number within the ipsilateral bulla of experimental animals. The mechanisms by which sympathectomy leads to increased local bone loss is unknown. Potential mechanisms include disinhibition of resorption, secondary to the elimination of periosteal sympathetics, as well as indirect vascular effects."



'via Blog this'

Thursday, July 3, 2014

medical procedures are misrepresented in the media

"If your patients rely on the mainstream media for medical advice, they may well think that cancer has been cured many times over, and have other inflated views about the benefits of new treatments and tests.
AND they probably would be shocked to learn about the potential downsides of many medical interventions, let alone costs.
That’s the conclusion of a comprehensive analysis of almost 2000 medical news items published in the US by print, online and television outlets between 2006 and 2013.
It was undertaken by the media watchdog Health News Review, and recently published in JAMA Internal Medicine (5 May, 2014). Most stories were judged unsatisfactory in how they covered the costs, benefits, harms and quality of the evidence supporting the new treatment or test, and how it was compared to alternatives.
“Drugs, medical devices, and other interventions were usually portrayed positively; potential harms were minimised and costs were ignored,” wrote the founder of Health News Review, Gary Schwitzer."

Melissa Sweet, Medical Observer, 24th Jun 2014

Thursday, June 12, 2014

Chest wall paresthesia affects a significant but previously overlooked proportion of patients following sympathectomy

Paresthetic discomfort distinguishable from wound pain was described by 17 patients (50.0%). The most common descriptions were of ‘bloating’ (41.2%), ‘pins and needles’(35.3%), or ‘numbness’ (23.5%) in the chest wall. The paresthesia resolved in less than two months in 12 patients (70.6%), but was still felt for over 12 months in three patients (17.6%). Post-operative paresthesia and pain did not impact on patient satisfaction with the surgery, whereas compensatoryhyperhidrosis in 24 patients (70.6%) did (P=0.001). The rates and characteristics of the paresthesia following needlescopic VATS are similar to those observed after conventional VATS. Conclusions: Chest wall paresthesia affects a significant but previously overlooked proportion of patients following needlescopic VATS.

Eur J Cardiothorac Surg 2005;27:313-319


Monday, June 9, 2014

The physiology of the sympathetic innervation of the limbs according to the ganglia and their location in correspondence with the ribs is highly variable

The Surgical Treatment of Hyperhidrosis - The Annals of Thoracic Surgery: "The physiology of the sympathetic innervation of the limbs according to the ganglia and their location in correspondence with the ribs is highly variable. Surgery performed by rib count is not anatomical, and rib count is often erroneous: according to Chou and colleagues [3], the estimated rib level was wrong in 5 of 114 patients. "


although producing no alterations in the thermal balance, does produce abnormalities in quantitative distribution of thermoregulatory sweating

JNS - Journal of Neurosurgery -: "The data demonstrate that the surgical removal of both the T-2 and the T-3 ganglia, although producing no alterations in the thermal balance, does produce abnormalities in quantitative distribution of thermoregulatory sweating in man."


the severity of post-sympathectomy (post-SE) dysfunction is unpredictable

"The aim of this study was to identify retrospectively, lumbar sympathectomy (SE) using thermography (TG) and to evaluate clinically, the severity of post-sympathectomy (post-SE) dysfunction after anterior and lateral lumbar interbody fusion procedures (ALIF, XLIF).
METHODS:
Twenty eight patients with suspected SE were referred for TG to both legs. They completed our questionnaire on severity of difficulties after SE. We evaluated the ability of physical examinations to reveal the SE in contrast to TG and compared the symptoms (warmer leg and inhibited leg sweating) of SE with questionnaire responses as subjective measure and TG as objective measure.
RESULTS:
SE was diagnosed in 0.5% after ALIF at L5/S1, in 15% after ALIF at Th12-L5 and in 4% after XLIF at T12-L5. SE severely reduced the quality of life in two cases. The ability to distinguish differences in leg temperature by palpation after SE was found in 32%. All physical examinations together were insufficient for reliably disclosing SE. Subjective symptoms of SE were often false positive and proven SE by TG was often a clinically false negative.
CONCLUSION:
This is the first study to examine post-SE dysfunction objectivelya using TG after ALIF and XLIF, and the first to evaluate clinically, the severity of the post-SE syndrome. Before surgery we cannot foresee potentially poor SE results. For this reason, injury to the sympathetic chain during surgery must be avoided. The advantage of TG for identifying SE is its non-invasiveness and reliability.
http://www.ncbi.nlm.nih.gov/pubmed/24263213"


the severity of post-sympathectomy (post-SE) dysfunction is unpredictable

"The aim of this study was to identify retrospectively, lumbar sympathectomy (SE) using thermography (TG) and to evaluate clinically, the severity of post-sympathectomy (post-SE) dysfunction after anterior and lateral lumbar interbody fusion procedures (ALIF, XLIF).
METHODS:
Twenty eight patients with suspected SE were referred for TG to both legs. They completed our questionnaire on severity of difficulties after SE. We evaluated the ability of physical examinations to reveal the SE in contrast to TG and compared the symptoms (warmer leg and inhibited leg sweating) of SE with questionnaire responses as subjective measure and TG as objective measure.
RESULTS:
SE was diagnosed in 0.5% after ALIF at L5/S1, in 15% after ALIF at Th12-L5 and in 4% after XLIF at T12-L5. SE severely reduced the quality of life in two cases. The ability to distinguish differences in leg temperature by palpation after SE was found in 32%. All physical examinations together were insufficient for reliably disclosing SE. Subjective symptoms of SE were often false positive and proven SE by TG was often a clinically false negative.
CONCLUSION:
This is the first study to examine post-SE dysfunction objectivelya using TG after ALIF and XLIF, and the first to evaluate clinically, the severity of the post-SE syndrome. Before surgery we cannot foresee potentially poor SE results. For this reason, injury to the sympathetic chain during surgery must be avoided. The advantage of TG for identifying SE is its non-invasiveness and reliability.
http://www.ncbi.nlm.nih.gov/pubmed/24263213"


Thursday, June 5, 2014

most of the existing literature is geared towards assessing only the effectiveness of the surgical sympathectomy

"Given the fact that most of the existing literature is geared towards a) assessing only the effectiveness of the surgical sympathectomy procedures, and b) publishing only studies with positive results, adverse effects and complications are not systematically reported but rather as a secondary outcome. It seems, therefore, highly likely that the complications as reported here, are truly underestimated.



The study indicates that surgical sympathectomy, irrespective of operative approach and indication, may be associated with many and potentially serious complications."



Are We Paying a High Price for Surgical Sympathectomy? A Systematic Literature Review of Late Complications

http://www.jpain.org/article/S1526-5900%2800%2944124-6/abstract


Sunday, June 1, 2014

33% of patients reported compensatory hyperhidrosis that was either 'severe' or 'incapacitating'

Endoscopic thoracic sympathectomy for primary hyperhidrosis of the...IPG487 Safety: "Compensatory hyperhidrosis was reported in 92% (416/453), 86% (1720/2000) and 74% (1265/1700) of patients in 3 case series. In 2 of these studies 33% (557/1700 and 150/453) of patients reported compensatory hyperhidrosis that was either 'severe' or 'incapacitating'."


Saturday, May 31, 2014

Louise Field, 27, died after ETS surgery

Louise Field, 27, died after ETS surgery (1/3) | VerySweatyBetty.com: "A ‘fit and healthy’ young woman was left brain dead after a pioneering operation to reduce her excessive sweating went catastrophically wrong, a medical panel has heard. Louise Field, 27, suffered severe brain damage when doctors accidentally punctured her lung and pumped gas into her stomach, the General Medical Council heard. She died two days later. Vascular surgeon Dr Michael Ormiston and anaesthetist Dr Wasfy Yanny face a catalogue of charges arising from the bungled operation at a Bupa Hospital in Harpenden, Hertfordshire.

Dr Ormiston, who had carried out the operation a handful of times, first punctured the keen sportswoman’s lung with a needle then pumped carbon dioxide into her stomach. Dr Yanny failed to take action when Ms Field’s oxygen levels dropped dangerously low and should have realised this damaged the patient’s brain, the hearing was told. Ms Field had


Louise Field
chosen to undergo an operation to reduce heavy sweating on her hands and feet, the GMC heard.
Sarah Plaschkes, for the GMC, told the hearing: ‘She was born on February 18, 1975, and was to die tragically on March 22, 2002, aged just 27. ‘She was fit and healthy and played a lot of sport however she was embarrassed by excessive sweating of the hands and feet."



'via Blog this'

Stellate Ganglion Block for the Treatment of Posttraumatic Stress Disorder | Psychiatric Annals

Stellate Ganglion Block for the Treatment of Posttraumatic Stress Disorder | Psychiatric Annals: "SGB has been shown to have utility for diagnostic, therapeutic, and prognostic purposes for a variety of conditions, including: chronic regional pain syndrome types I and II to the upper extremities (CRPS I and II); chronic and acute vascular insufficiency/occlusive vascular disorders of the upper extremities, such as Raynaud’s disease, intra-arterial embolization and vasospasm. SGB has also been found an effective treatment for poor lymphatic drainage and local edema of the upper extremity following breast surgery; postherpetic neuralgia; and phantom limb pain or amputation stump pain. Patients with quinine poisoning; sudden hearing loss and tinnitus; hyperhidrosis of the upper extremity; cardiac arrhythmias and ischemic cardiac pain; Bell’s palsy and a variety of orofacial pain syndromes, including neuropathic orofacial pain and trigeminal neuralgia; vascular headache such as cluster and migraine headaches; and neuropathic pain syndromes among cancer patients are all also candidates for SGB.2,3,12–16

SGB has also been recommended for improving blood flow to the cranium for angiography and following stroke/cerebrovascular accident and hyperhidrosis to the upper extremities.13,14 Additionally, SGB’s use has been reported in the treatment of MĂ©nière’s syndrome3 and hot flashes.17–19"



https://archive.today/yOe5b

Friday, May 30, 2014

"He knows the procedure is controversial because of the unpredictability of side-effects"

Information about surgery for sweaty hands: surgeon "knows the procedure is controversial because of the unpredictability of side-effects"



"Ferrar believes much of the controversy lies in surgeons, mainly in America, who perform the surgery on anyone who asks for it, rather than the severe end of the spectrum.
"In America there are so many that have been operated on when it hasn't been necessary, or the surgeon has given the patient false expectations, that there are support groups for people who've had complications or adverse effects. The people that come to me are almost self-selecting; they've tried everything else."
The youngest patient he has performed an endoscopic thoracic sympathectomy on was 8 years old, with most being in puberty (when the condition tends to arise). Or they are in their 20s when they are beginning relationships and jobs."



Publication info: Waikato Times [Hamilton, New Zealand] 07 Apr 2012: 22."

Thursday, May 29, 2014

Chest pain, chest hypersensitivity, arm pain, paraesthesias of the upper limb and the thoracic wall, and recurrent pain in the axillary region have all been described

"Chest pain, chest hypersensitivity, arm pain, paraesthesias of the upper limb and the thoracic wall, and recurrent pain in the axillary region have all been described. Intra-operative intrapleural analgesia using bupivacaine can help reduce postoperative pain. Using a 5 mm rather than 1cm post causes less postoperative discomfort, particularly in women with narrow intercostal spaces.

Complications in Vascular and Endovascular Surgery: How to avoid them and how to get out of trouble


Jonothan J Earnshaw, Michael Wyatt,

tfm Publishing Limited, Jan 1, 2012 - Medical - 318 pages"


Wednesday, May 21, 2014

Sympathectomy is by no means a benign procedure, and sympathectomy for sweating can induce pain and allodynia

"Sympathectomy is by no means a benign procedure, and sympathectomy for sweating can induce pain and allodynia at the border zone which is sometimes associated with pronounced increase in sweating in that area." (p. 534) Surgical Disorders of the Peripheral Nerves by Rolfe Birch Springer, Jan 21, 2011 - Medical - 512 pages original article published in Ann R Coll Surg Engl 2002; 84:181-184"

Sunday, May 4, 2014

the autonomic nervous system varies in a unique, autonomous manner, and it is therefore difficult to assess changes in patients in a uniform manner

There are several reasons that stellate ganglion block affects the cardiovascular system. Stellate ganglion block will initially affect both the sympathetic and parasympathetic nervous systems based on the degree of block. The intensity of right stellate ganglion blockage of the sympathetic and parasympathetic nervous system will result in heart rate changes and altered activity of the sympathetic and parasympathetic nervous system. Efferent sympathetic innervation from the right stellate ganglion is primarily distributed over the sinus node of the heart, and the influence of the autonomic nervous system and left stellate ganglion block should be assessed. Further, results will be affected by the health status of participants.
Although efferent sympathetic nerves from the stellate ganglion are primarily distributed over the heart, efferent sympathetic fibers from the 2nd to 5th thoracic ganglia affect the heart as well. Accordingly, the autonomic nervous system of the heart is not completely dependent on the stellate ganglia. The influence of the autonomic nervous system cannot be excluded as well. It is worth noting that the mepivacaine in the present study was a lower dosage than those used in other studies. Finally, the autonomic nervous system varies in a unique, autonomous manner, and it is therefore difficult to assess changes in patients in a uniform manner or just through the application of one or two indicators. Future studies should examine diverse methods for the assessment of autonomic nervous system function.
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2872892/

Thursday, May 1, 2014

peripheral sympathectomy causes a dramatic increase in NGF levels in the denervated organs

Increased Nerve Growth Factor Messenger RNA and Protein

Peripheral NGF mRNA and protein levels following
sympathectomy
It has been shown previously that peripheral sympathectomy
causes a dramatic increase in NGF levels in the denervated
organs
 (Yap et al., 1984; Kanakis et al., 1985; Korsching and
Thoenen, 1985).
Increased ,&Nerve Growth Factor Messenger RNA and Protein
Levels in Neonatal Rat Hippocampus Following Specific Cholinergic
Lesions
Scott R. Whittemore,” Lena Liirkfors,’ Ted Ebendal,’ Vicky R. Holets, 2,a Anders Ericsson, and HBkan Persson
Departments of Medical Genetics and’ Zoology, Uppsala University, S-751 23 Uppsala, Sweden, and *Department of
Histology, Karolinska Institute, S-104 01 Stockholm, Sweden

Sunday, April 27, 2014

Stratified analysis of clinical outcomes in ... [Ann Thorac Surg. 2008] - PubMed - NCBI

"Significant compensatory sweating in relation to the level(s) of sympathetic chain division occurred in T2 alone, 45%; T2 to T3, 30%; T3 to T4, 14%; T2 to T4, 38%; and more than three levels, 49%"



 2008 Feb;85(2):390-3;

http://www.ncbi.nlm.nih.gov/pubmed/18222231

Friday, April 25, 2014

our results indicate that the sympathetic innervation of cutaneous vessels is essential for the precise regulation of tail heat loss

"Neuroscience Letters. Mar2013, Vol. 537, p11-16. 6p."




Surprisingly, many patients experienced mild recurrent symptoms within the first year

Sympathicotomy for isolated facial blushing:... [Ann Thorac Surg. 2012] - PubMed - NCBI: "Mild recurrence of facial blushing occurred in 30% of patients within the first year. One patient experienced Horner's syndrome. Compensatory sweating occurred in 93% of patients, gustatory sweating 36%, and dry hands in 66%; 13% of patients regretted the operation despite thorough preoperative selection and information."




Thursday, April 24, 2014

Patients who undergo sympathotomy for hyperhidrosis will commonly report "clinically bothersome" compensatory hyperhidrosis.

 2014 Apr;147(4):1160-1163.e1. doi: 10.1016/j.jtcvs.2013.12.016. Epub 2014 Jan 2.

ETS is not without its critics

"ETS is not without its critics. Like any major surgical procedure, there is an operative risk, with a prominent fatality in Dublin a few years ago. Homer's syndrome can result. The most common problem is the development of 'compensatory hyperhidrosis', usually on the back. In 2003, ETS was banned in its birthplace, Sweden, due to overwhelming complaints by disabled patients."



Enabling freedom from hyperhidrosis

Sympathectomy causes wall thinning, elongation, convolution, and aneurysm formation

"Sympathectomy causes basilar artery enlargment, which is beneficial for maintaining cerebral blood flow; however, it also causes wall thinning, elongation, convolution, and aneurysm formation, which may be hazardous in stenoocclusive carotid artery disease. Sympathectomy can prevent new vessel formation and hyperthyrophic changes at the posterior circulation. Neovascularisation is not detected adequately in sympathectomised animals."



Acta Neurochirurgica156.5 (May 2014): 963-9.

Sympathectomy causes wall thinning, elongation, convolution, and aneurysm formation

"Sympathectomy causes basilar artery enlargment, which is beneficial for maintaining cerebral blood flow; however, it also causes wall thinning, elongation, convolution, and aneurysm formation, which may be hazardous in stenoocclusive carotid artery disease. Sympathectomy can prevent new vessel formation and hyperthyrophic changes at the posterior circulation. Neovascularisation is not detected adequately in sympathectomised animals."



Acta Neurochirurgica156.5 (May 2014): 963-9.

Monday, April 21, 2014

"The custom of a majority is no guarantee of safety and is seldom a guide to best medical practice." in Legal Forum

"The custom of a majority is no guarantee of safety and is seldom a guide to best medical practice." in Legal Forum: "Cameron`s claim that there has been only one death attributable to synchronous bilateral thoracoscopic sympathectomy is implausible. Surgeons and anaesthetists are reticent in publicizing such events and Civil Law Reports of settled cases are an inadequate measure of the current running total. The custom of a majority is no guarantee of safety and is seldom a guide to best medical practice."

Jack Collin,
Consultant Surgeon
Oxford

http://www.bmj.com/content/320/7244/1221?tab=responses




Monday, April 14, 2014

Peripheral neuropathy gives reduced sensation and sweat ability of the arms and legs but can lead to compensatory sweating of the trunk and head.

Google Translate:



Peripheral neuropathy gives reduced sensation and sweat ability of the arms and legs but can lead to compensatory sweating of the trunk and head.
Horner's syndrome due sympatikusskada means, for example Anhidrosis on one half of the face which can then be followed by compensatory hyperhidrosis on the other side. Harlequin syndrome is another name in the same condition in which instead focuses on the color difference where the sympatikusskadade page turns white and the other side is red with exertion. The look can then recall a home to Harelquin.
Freys'syndrom arise after salivary gland surgery faulty growing parasympathetic salivary fibers innervate the sweat glands in the cheek. This means that when the patient eats or even just thinking about food so producing a profuse perspiration from his cheek
Sympathectomy was common in the 90s in Sweden. At indications palmar and axillary hyperhidrosis, redness, or social phobia, burned the thoracic sympathetic ganglia endoscopically. Compensatory hyperhidrosis developed below the nipples of a large number of patients 1-6 months after sympatektomin.

Friday, April 11, 2014

This is the first study to examine post-SE (post-sympathectomy) dysfunction objectively

This is the first study to examine post-SE dysfunction objectively using TG after ALIF and XLIF, and the first to evaluate clinically, the severity of the post-SE syndrome. Before surgery we cannot foresee potentially poor SE results. For this reason, injury to the sympathetic chain during surgery must be avoided. The advantage of TG for identifying SE is its non-invasiveness and reliability.

The aim of this study was to identify retrospectively, lumbar sympathectomy (SE) using thermography (TG) and to evaluate clinically, the severity of post-sympathectomy (post-SE) dysfunction after anterior and lateral lumbar interbody fusion procedures (ALIF, XLIF).
http://www.ncbi.nlm.nih.gov/pubmed/24263213

Thursday, February 27, 2014

Sympathectomy (ETS) a psychosurgery?

Financial Review - News Store: "It's not unusual to hear people who have undergone sympathectomies describe themselves as feeling emotionally "colder" than before. Among psychologists and neurologists alike there is concern, but no evidence, that the procedure limits alertness and arousal as well as fear, and might affect memory, empathy and mental performance. Professor Ronald Rapee, the director of the Centre of Emotional Health at Sydney's Macquarie University, says he's counselled several people who complain of feeling "robot-like" in the long-term wake of the operation. "They're happy they no longer blush, but they miss the highs and lows they used to feel.""



'via Blog this'

Dr. Telaranta treating fear, stuttering, stage fright, blushing with sympathectomy. Is ETS a psychosurgery?

Dr. Telaranta | Blog by Dr. Telaranta: "As a treatment, sympathetic blocking could be effective. Fortunately one can test whether it’ll have an effect, to a pretty high level of certainty, by first administering a temporary block t. Sympathetic block is usually effective in reducing all types of fear, why not also in reducing the fear of stuttering.

Sympathetic block typically has the highest likelihood of effective results on both schizophrenia and tremor when fear or anxiety plays a significant part in the onset of symptoms. It is also very effective in treating social phobia, stage fright and blushing. A stage fright-like fear of public presentations is likely common amongst those who stutter."



http://www.sympatix.fi/blog/?lang=en_

Tuesday, February 18, 2014

"We quickly discovered that lay people often lack the (medical) knowledge to make well-considered judgements"

Jane McCredie: Wishing on risks

MjaInsight Monday, 11 November, 2013
Moreover, GPs and plastic surgeons can both be approached directly by patients in The Netherlands. The physicians studied raised many arguments that were expected: they used patient autonomy, risks and benefits, normality and justice to limit wish-fulfilling medicine. In addition, arguments new to this debate were uncovered, which were frequently used to justify compliance with a patient's request. Such arguments seem familiar from conventional medicine, including empathy, the patient–doctor relationship and reassurance. Moreover, certain arguments that play a significant role in the literature on wish-fulfilling medicine and enhancement were not mentioned, such as concepts of disease and the enhancement–treatment dichotomy and ‘suspect norms’.

"We quickly discovered that lay people often lack the (medical) knowledge to make well-considered judgements"

Monday, February 17, 2014

The sympathetic system is responsible for the physiological responses to emotional states

The common epithet of “fight or flight” is being enlarged to be “fight, flight, or fright” or even “fight, flight, fright, or freeze.” Cannon’s original contribution was a catchy phrase to express some of what the nervous system does in response to a threat, but it is incomplete. The sympathetic system is responsible for the physiological responses to emotional states. The name “sympathetic” can be said to mean that (sym- = “together”; -pathos = “pain,” “suffering,” or “emotion”).
http://cnx.org/content/m46582/latest/?collection=col11496/latest

Saturday, February 15, 2014

Following a peripheral nerve injury, a sterile inflammation develops in sympathetic and dorsal root ganglia

Following a peripheral nerve injury, a sterile inflammation develops in sympathetic and dorsal root ganglia (DRGs) with axons that project in the damaged nerve trunk. Macrophages and T-lymphocytes invade these ganglia where they are believed to release cytokines that lead to hyperexcitability and ectopic discharge, possibly contributing to neuropathic pain. Here, we examined the role of the sympathetic innervation in the inflammation of L5 DRGs of Wistar rats following transection of the sciatic nerve, comparing the effects of specific surgical interventions 10-14days prior to the nerve lesion with those of chronic administration of adrenoceptor antagonists. Immunohistochemistry was used to define the invading immune cell populations 7days after sciatic transection. Removal of sympathetic activity in the hind limb by transecting the preganglionic input to the relevant lumbar sympathetic ganglia (ipsi- or bilateral decentralization) or by ipsilateral removal of these ganglia with degeneration of postganglionic axons (denervation), caused less DRG inflammation than occurred after a sham sympathectomy. By contrast, denervation of the lymph node draining the lesion site potentiated T-cell influx. Systemic treatment with antagonists of α1-adrenoceptors (prazosin) or β-adrenoceptors (propranolol) led to opposite but unexpected effects on infiltration of DRGs after sciatic transection. Prazosin potentiated the influx of macrophages and CD4+ T-lymphocytes whereas propranolol tended to reduce immune cell invasion. These data are hard to reconcile with many in vitro studies in which catecholamines acting mainly via β2-adrenoceptors have inhibited the activation and proliferation of immune cells following an inflammatory challenge.
 2013 Dec 23.
http://www.ncbi.nlm.nih.gov/pubmed/24418114

Immune cell involvement in dorsal root ganglia and spinal cord after chronic constriction or transection of the rat sciatic nerve.

Chronic constriction injury (CCI) of the sciatic nerve in rodents produces mechanical and thermal hyperalgesia and is a common model of neuropathic pain. Here we compare the inflammatory responses in L4/5 dorsal root ganglia (DRGs) and spinal segments after CCI with those after transection and ligation at the same site. Expression of ATF3 after one week implied that 75% of sensory and 100% of motor neurones had been axotomized after CCI. Macrophage invasion of DRGs and microglial and astrocytic activation in the spinal cord were qualitatively similar but quantitatively distinct between the lesions. The macrophage and glial reactions around neurone somata in DRGs and ventral horn were slightly greater after transection than CCI while, in the dorsal horn, microglial activation (using markers OX-42(for CD11b) and ED1(for CD68)) was greater after CCI. In DRGs, macrophages positive for OX-42(CD11b), CD4, MHC II and ED1(CD68) more frequently formed perineuronal rings beneath the glial sheath of ATF3+ medium to large neurone somata after CCI. There were more invading MHC II+ macrophages lacking OX-42(CD11b)/CD4/ED1(CD68) after transection. MHC I was expressed in DRGs and in spinal sciatic territories to a similar extent after both lesions. CD8+ T-lymphocytes aggregated to a greater extent both in DRGs and the dorsal horn after CCI, but in the ventral horn after transection. This occurred mainly by migration, additional T-cells being recruited only after CCI. Some of these were probably CD4+. It appears that inflammation of the peripheral nerve trunk after CCI triggers an adaptive immune response not seen after axotomy.
 2007 Jul;21(5):599-616. Epub 2006 Dec 21.

Sunday, February 9, 2014

BioEdge: Evidence-based medicine comes under attack

BioEdge: Evidence-based medicine comes under attack: "evidence-based medicine has its critics, as a bilious outbreak of comment and letters in the BMJ demonstrated recently. Early last month a Glasgow GP, Des Spence, said that the system of EBM had been corrupted. “If we don’t tackle the flaws of EBM there will be a disaster, but I fear it will take a disaster before anyone will listen,” he wrote.

How could anyone fault the notion of treatment based on scientifically validated evidence? No one. But the critics of EBM argue heatedly that the standards for the evidence are often low and tainted by commercial or personal interests."

http://www.bioedge.org/index.php/bioethics/bioethics_article/10841

Friday, February 7, 2014

The intervention is associated with severe immediate complications in some patients and persistent adverse effects for many


"The evidence for the effectiveness of ETS is weak. The intervention is associated with severe immediate complications in some patients and persistent adverse effects for many."

Effectiveness and safety of endoscopic thoracic sympathectomy: a systematic review (in Finnish). FinOHTA, Helsinki, STAKES; 2005. Report No.: 26. 

Thursday, February 6, 2014

prolongation of the isometric (tension) period (TP) of the left ventricle occurred in the majority (72 per cent) of all cases after sympathectomy

The prolongation of the isometric (tension) period (TP) of the left ventricle which occurred in the majority (72 per cent) of all cases after unilateral or bilateral transthoracic sympathectomy (without or with unilateral or bilateral transthoracic splanchnicotomy) indicates a diminution of inotropic cardiac action. It can be assumed to correspond to the cholinergic (vagal) preponderance which results from a partial or complete sympathetic denervation of the heart. Reduction of the pulse pressure oc-

curred in 56 per cent of the cases, probably due to the same mechanism.

www.chestjournal.org/content/38/4/423.full.pdfby W RAAB - 1960

Tuesday, January 21, 2014

change in sympathetic nervous system activity after thoracic sympathectomy

The photoplethysmographic (PPG) signal, which measures cardiac-induced changes in tissue blood volume by light transmission measurements, shows spontaneous fluctuations. In this study, PPG was simultaneously measured in the right and left index fingers of 16 patients undergoing thoracic sympathectomy, and, from each PPG pulse, the amplitude of the pulse (AM) and its maximum (BL) were determined. The parameter AM/BL is proportional to the cardiac-induced blood volume increase, which depends on the arterial wall compliance. AM/BL increased after the thoracic sympathectomy treatment (for male patients, from 2.60±1.49% to 4.81±1.21%), as sympathetic denervation decreases arterial tonus in skin. The very low-frequency (VLF) fluctuations of BL or AM showed high correlation (0.90±0.11 and 0.92±0.07, respectively) between the right and left hands before the thoracic sympathectomy, and a significant decrease in the right-left correlation coefficient (to 0.54±0.22 and 0.76±0.20, respectively) after the operation. The standard deviation of the BL or AM VLF fluctuations also reduced after the treatment, indicating sympathetic mediation of the VLF PPG fluctuations. The study also shows that the analysis of the PPG signal and the VLF fluctuations of the PPG parameters enable the assessment of the change in sympathetic nervous system activity after thoracic sympathectomy.
Volume 39Issue 5pp 579-583
http://link.springer.com/article/10.1007%2FBF02345149

Saturday, January 18, 2014

we observed a significant increase in net survival rate in non sympathectomised rates in comparison to sympathectomised

Results
                Graph 1 shows the survival rate in both sympathectomised and non sympathectomised rats after the administration of YA cells. The graph shows an overall shorter survival rate of sympathectomised rats. In both groups there is a steep decrease in survival after 15 days, causing the median survival rate (18 days) of both groups to overlap. On the other hand the net survival rate is increased in non sympathectomised rates by 6 days
References:
1.        Ewa Chelmicka – Szorc, Barry G. W. Arnason. Effect of 6-Hydroxydopamine on Tumor Growth. CANCER RESEARCH 1976, 36, 2382-2384.
2.        Boris Mravec, NeurobiolĂ³gia chorĂ´b perifĂ©rnych tkanĂ­v, Bratislava, SAP 2008, 220 s.,  ISBN 978-80-8095-030-9
3.        Raju B, Haug SR, Ibrahim SO, Heyeraas KJ. Sympathectomy decreases size and invasiveness of tongue cancer in rats. Neuroscience. 2007;149(3):715-25.
4.        Mravec B ,Gidron Y,Hulin I. Neurobiology of cancer: Interactions between nervous, endocrine
and immune systems as a base for monitoring and modulating the tumorigenesis by the brain. Seminars in Cancer Biology 18 (2008) 150–163.
5.        Paul G. Green,Wilfrid Janig, Jon D. Levinel. Negative Feedback Neuroendocrine Control of Inflammatory Response in the Rat is Dependent on the Sympathetic Postganglionic Neuron. The Journal of Neuroscience, 1997, 17(8):3234 –3238
6.      Aparna A. Bhanushali , R. Raghunathan , Rajiv D. Kalraiya , Narendra G. Mehta. Cancer-related anemia in a rat model: α2-macroglobulin from Yoshida sarcoma shortens erythrocyte survival. European Journal of Haematology 2002. 68(1),42 - 48


The effect of sympathectomy on the growth of intraperitoneally administered Yoshida ascitic cells in rats
El-Hassoun Olia, Coauthors: Zuzana ValaÅ¡kovĂ¡, Ivan HulĂ­n
Supervisor: Boris Mravec
Institute of Pathophysiology, LF UK Bratislava
http://svoc.fmed.uniba.sk/abstrakty/48/36.html

Monday, December 16, 2013

Long-term sympathectomy induces sensory and parasympathetic fibres sprouting, and mast cell activation in the rat dura mater

Bergerot, AAubineau, P; (1998) Long-term sympathectomy induces sensory and parasympathetic fibres sprouting, and mast cell activation in the rat dura mater. EUR J NEUROSCI , 10 79 - 79. 

http://discovery.ucl.ac.uk/1330488/

Sunday, December 15, 2013

Lewis rats are much more likely to develop autoimmune disorders after sympathectomy

Lewis rats are much more likely to develop autoimmune disorders after sympathectomy 
(Dimitrova and Felten, 1995). This finding suggests that if sympathetic regulation were impaired in a 
genetically predisposed individual, an autoimmune disease might develop.  
Betrayal by the Brain: The Neurologic Basis of Chronic Fatigue Syndrome, Fibromyalgia Syndrome and Related Neural Network Disorders  
by Jay A. Goldstein  

published by The Haworth Medical Press, 1996

Wednesday, December 11, 2013

significant change after sympathectomy: reduced sympathetic and increased vagal tone

The HRV analysis showed a significant change of indices reflecting sympatho-vagal balance indicating significantly reduced sympathetic (LF) and increased vagal (HF, rMSSD) tone. These changes still persisted after 2 years. Global HRV increased over time with significant elevation of SDANN after 2 years. QT dispersion was significantly reduced 1 month after surgery and the dispersion was further diminished 2 years later.
http://www.sciencedirect.com/science/article/pii/S0167527399001011

Thursday, December 5, 2013

"sympathectomy is a form of sensory neurectomy" (p. 1500)

Bonica's Management of Pain

Front Cover
Scott FishmanJane BallantyneJames P. Rathmell
Lippincott Williams & Wilkins, 2010 - Medical - 1661 pages

Sunday, November 24, 2013

sympathectomized arteries become more susceptible to lipid accumulation

Combined effect of cholesterol feeding and sympathectomy on the lipid content in rabbit aortas
Volume 37, Issue 4, December 1980, Pages 521–528

Saturday, November 23, 2013

Decreased HRV is predictive of adverse cardiovascular outcomes in a variety of disease states

Water immersion-induced skin wrinkling (WISW) is dependent on intact peripheral sympathetic function. WISW was hypothesized to reflect autonomic function in subjects with- out peripheral neuropathy. We prospectively studied 70 healthy subjects (aged 31 88 years, 63% females) without cardiovascular risk factors or neurological disease. All sub- jects underwent short-term heart rate variability (HRV) stud- ies. Time and frequency domain variables were derived in- cluding the HRV index. WISW was graded using a previously validated scale of 1–4 of which 18.6% of subjects exhibited grade 1 (minimal) WISW and 35.7% had grade 2 WISW. On multivariate analysis using the HRV index, WISW was inde- pendently related to height and the HRV index. We conclude that WISW is related to central autonomic function.


Although the mechanism is not fully understood, WISW is felt to be caused by passive diffusion of water across the stratum corneum into the sweat ducts, which in turn alters electrolyte balance, decreases membrane stabilization, increases sympathetic neural firing and stimulates vasoconstriction [1–3, 8].WISW is decreased in diabetic patients and in patients after cervical sympathectomy [4, 9].
Heart rate variability (HRV) is the beat-to-beat variation in cardiac cycle length due to autonomic influence on the sinus node. Decreased HRV is predictive of adverse cardiovascular outcomes in a variety of disease states[5]. The influence of the central nervous system activity on autonomic function suggests that HRV may be a useful prognostic indicator in patients with cerebrovascular events [6].


Cardiology 2010;116:247–250 DOI: 10.1159/000316043
Received: May 10, 2010
Accepted after revision: May 28, 2010 Published online: August 18, 2010