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

After severing the cervical sympathetic trunk, the cells of the cervical sympathetic ganglion undergo transneuronic degeneration
After severing the sympathetic trunk, the cells of its origin undergo complete disintegration within a year.

http://onlinelibrary.wiley.com/doi/10.1111/j.1439-0442.1967.tb00255.x/abstract

Thursday, December 18, 2008

Degeneration patterns of postganglionic fibers following sympathectomy

In the muscle nerves the first signs of an axonal degeneration of the sympathetic fibers can be recognized 4 days after surgery. The signs of axonal degeneration are most striking about 8 days p.o. They have more or less disappeared another week later. The reactions of the Schwann cells also start on the fourth day but outlast the degenerative processes by some 8 days. Thus the degenerative and reactive processes in the reg precede those in the muscle nerves by 2 days early after surgery and by 6 days 3 weeks later. Seven weeks after surgery, fragments of folded basement lamella and Remak bundles with condensed cytoplasm and numerous flat processes are persisting signs of the degeneration.
K. H. Andres, M. von Düring, W. Jänig and R. F. Schmidt
Anatomy and Embryology
Springer Berlin / Heidelberg
Volume 172, Number 2 / August, 1985
http://www.springerlink.com/content/m21m2612n2147011/

sympathectomy is associated with increased pulmonary metastases

Chemical sympathectomy is associated with increased pulmonary metastases.

Journal of Neuroimmunology 1992;37:191-202.
Brenner, GJ, Felten, SY, Felten, DL, Cohen, N and Moynihan, JA.
http://www.massgeneral.org/nprg/brenner.htm

sympathectomy involves division of adrenergic, cholinergic and sensory fibers

The excision of neural structures which elaborate adrenergic substances during the process of regulating visceral function continues to be a valuable investigative and therapeutic maneuver.
In general, sympathtectomy has been used for one or more of the following purposes:
1/ to eliminate tonic or engendered responses which depend upon impulses in adrenergic nerves;
2/ to eliminate visceral stores of adrenergic substances which depend upon the integrity of the postganglionic sympathetic innervation;
3/ to eliminate postganglionic sympathetic tissue as a locus for the synthesis, uptake, binding, release and metabolism of adrenergic substances;
4/ to eliminate visceral afferent fibers which are frequently distributed in common with autonomic nerves.
It is clear that sympathectomy is not a selective excision of adrenergic elements only. It is well recognized that preganglionic sympathectomy involves division of cholinergic elements and sensory fibers.
Although the larger portion of sympathetic inflow to an organ can be eliminated by excision of relatively large, well defined anatomical structures in the sympathetic nervous system, there may be many aberrant pathways of innervation. The structure of the terminal apparatus for innervation in most organs is not clear, and it is not known how widely or how rapidly a seemingly small residue of postganglionic fibers can proliferate or branch to occupy sites of degenerated elements.
Theodore Cooper
Surgical Sympathectomy and Adrenergic Function
Department of Surgery, St Louis University School of Medicine
Pharmacological Reviews, Vol. 18, No.1
http://pharmrev.aspetjournals.org/cgi/pdf_extract/18/1/611

Sympathectomy increases total body perspiration, not decreases it

Performing thoracoscopic T2-T3 sympathectomy for PPH affects the total body sweating response to heat.
http://www.ncbi.nlm.nih.gov/pubmed/11193740
Kopelman D, Assalia A, Ehrenreich M, Ben-Amnon Y, Bahous H, Hashmonai M.
Department of Surgery B, Rambam Medical Center and Faculty of Medicine, Technion-Israel Institute of Technology, Haifa.

An ultrastructural study of the effects of right cervical sympathectomy on the sinuatrial and atrioventricular nodes in the heart

Axon profiles and terminals showing various degrees of degeneration were present in the vicinity of the nodal cells throughout the period of study. It is concluded that right cervical sympathectomy resulted in a rapid degeneration in some of the cells in the sinuatrial and atrioventricular nodes.
S S Tay, W C Wong, and E A Ling
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1165060

Abnormalities in autonomic cardiovascular control can impair blood supply to the brain

Abnormalities in autonomic cardiovascular control can impair blood supply to the brain and produce syncope in two different disorders: autonomic failure and neurally mediated syncope. In autonomic failure, sympathetic efferent activity is chronically impaired so that vasoconstriction is deficient, upon standing blood pressure always falls (i.e., orthostatic hypotension), and syncope or presyncope occurs. Conversely, in neurally mediated syncope, the failure of sympathetic efferent casoconstrictor traffic (and hypotension) occurs episodically and in response to a trigger. Between syncopal episodes, patients with neurally mediated syncope have normal blood pressure and orthostatic tolerance. This article reviews the characteristics of autonomic failure and describes in more detail the pathophysiology, diagnosis, and treatment of neurally mediated syncope.

Neurally Mediated Syncope and Syncope Due to Autonomic Failure: Differences and Similarities.
Review Articles
Journal of Clinical Neurophysiology. Neurocardiogenic Syncope. 14(3):183-196, May 1997.
Kaufmann, Horacio

Cannon phenomenon after sympathectomy

Sympathectomy in such cases causes classic Cannon phenomenon. This physiological phenomenon refers to the fact that the end organ that is controlled by sympathetic fibers will become uninhibited in it's chemical dysfunction. As a result, even though the sympathetic nerve fibers are not contributing to acetylcholine or norepinephrine secretion at the area of nerve damage, the partially damaged sensory nerves become uninhibited with resultant increase pain input.

In patients who have had sympathectomy, thermography shows an increase iof temperature in the focus of ephatic nerve damage (Cannon phenomenon) with secondary increase of pain and discomfort.

Chronic Pain: Reflex Sympathetic Dystrophy : Prevention and Management
By Hooshang Hooshmand
Published by CRC Press, 1993

Centre for Clinical Effectiveness and Monash University

No systematic reviews, meta-analyses, or clinical trials that evaluated the
effectiveness of endoscopic thoracic sympathectomy for treating facial
blushing were identified. However, we have identified four case series
related to the request (Drott et al. 1998, Rex et al. 1998, Telaranta 1998,
Yilmaz et al. 1996). These studies were conducted in three countries
(Sweden, Finland and the Netherlands).

The four case series were not critically appraised because they are prone
to bias and have significant methodological problems. These studies
represent level IV evidence according to the NHMRC criteria and one
should not draw firm conclusions from their findings.

To date, the benefits or side effects associated with endoscopic thoracic
sympathectomy for treating facial blushing have not been properly
evaluated and reported.

Omar Ahmed PhD
Centre for Clinical Effectiveness
Monash Medical Centre
Locked Bag 29
Clayton VIC 3168
Australia

Acupuncture after sympathectomy?

Sympathectomy abolishes trigger points activity.
Dr Simon L Strauss
http://www.pain-education.com/100125.php

Perioperative Thermoregulation

Neuraxial (spinal and epidural) anesthesia also impairs central thermoregulatory control via mechanisms that remain unclear. Regional anesthesia also causes a sympathectomy that prevents lower-body vasoconstriction and paralysis that prevents lower-body shivering. Consequently, hypothermia during neuraxial anesthesia is as common, and nearly as serious, as during general anesthesia.
Daniel I. Sesler, M.D.
Australian and New Zealand College of Anaesthetists.
http://www.anzca.edu.au/events/asm/asm2007/Sessler3.htm

Long QT treatment in AU

In patients who do not respond to medication, the insertion of a pacemaker or the automatic defibrillator, or the surgical cutting of certain nerves in the neck, called cervico-thoracic sympathectomy, can be utilised.
webarchive (19th August 2006):
https://web.archive.org/web/20060819191258/http://www.sads.org.au/sads_info.html

sympathectomy highly controversial

This highly controversial treatment involves the destruction of nerves using surgery or chemicals, and is indicated only for profoundly disabled patients who have responded positively to sympathetic blockade and have no other treatment options. Evidence to support the use of sympathectomy is limited, and as such its use is not widely recommended. Some retrospective studies of surgical sympothectomy have shown long-term success (Schwartzman, 1997; Kim, 2002; Brandyk, 2002). However, these successful outcomes should be balanced with reports
of the negative impact of surgical sympathectomy (Furlan, 2001).

Sympathectomy causes changes in the wool growth of sheep

The left superior cervical ganglion was removed from 18 sheep. The animals were exposed to a cold environment and ear temperature was monitored to indicate the likely release of noradrenaline in the skin of the cheeks or adrenaline from the adrenals. With respect to the sympathectomized side, a reduction in ear temperature on the unoperated side was associated with lowered mitotic rate at the unoperated cheek site (P < 0.026). However, when the temperature of the unoperated side was not lowered, mitotic rate was not consistently lower on one side with respect to the other. Physiological levels of noradrenaline therefore mimicked the effects observed during the pharmacological studies, and the catecholamines may therefore play an important role in the regulation of wool growth.
DR Scobie, PI Hynd and BP Setchell Australian Journal of Agricultural Research 45(6) 1159 - 1169

Full text doi:10.1071/AR9941159

© CSIRO 1994

Sympathectomy in the treatment of RSD

The book classifies the different stages of RSD and describes the qualitative and quantitative differences between natural endorphins and synthetic narcotics. Included are long-term follow-ups on sympathectomy patients. This important reference explains why sympathectomy fails, but nerve block and physiotherapy is successful in the treatment of RSD.
Author: H. Hooshmand
Chronic Pain
Publisher: Taylor & Francis
ISBN: 9780849386671
http://www.theaustralian.seekbooks.com.au/popcat.asp?storeURL=theaustralian&CatMain=MED071000&CatSub=MED022000&CatMinor=&PageNo=1&CatMode=2&a=c

Response:

However, please advise people that even after a sympathectomy the patients that have Reflex Sympathetic Dystrophy, aka, Complex Regional Pain Syndrome, could still have extreme pain.

Sympathectomy may provide temporary pain relief, but after a few weeks to months it loses its effect.

http://www.rsdinfo.com/crps_and_sympathectomy.htm

Christine
http://AfflictedWithRSD.com
http://blog.christineleiendecker.com

Sympathectomy also cuts sensory nerves

Thoracoscopic Splanchnicectomy, first proposed by Dr. Lin in 1992, is a lower position of sympathetic procedure. It can relieve abdominal cancer pain originating from Pancreas, Liver, Gall Bladder, Upper GI and right Hemi-colon. Nearly hundred percent of effective pain relief is found especially on the case of pancreatic cancer.
archived:


Dr Lin treats these conditions with sympathectomy:

A certain percentage of Angina, Reflex sympathetic dystrophy and pain, Raynaud’s syndrome, Asthma, Schizophrenia, Social phobia, Rhinitis, Migraine, Tremoring disorders, Parkinsonism … can be treated by sympathetic surgery. Stellate Ganglion Block (SGB) is one of the best method for preoperative evaluation, which is the best way to avoid unnecessary sympathetic operation.
http://www.sweathand.com/five_e.htm#index_3
archived:
https://web.archive.org/web/20090414080914/http://www.sweathand.com/five_e.htm#index_3

Patients receiving treatment for sweaty hands also receive surgery for Hypertension? Are they told that they are also having heart surgery?

It is worthy to notice that facial sweating is also an indicator of hypertensive cardiovascular disease. Dr. Lin found that sympathetic procedures could concommitantly treat both facial sweating and hypertension. Of course, long-term follow-up is necessary to evaluate its therapeutic and preventive effects to hypertensive cardiovascular disease.http://www.sweathand.com/one_e.htm
archived:
https://web.archive.org/web/20070306062240/http://www.sweathand.com/one_e.htm

Conditions treated by SYMPATHECTOMY

Lin-Telaranta Classifications
Group 1:
Facial Blushing, Tremoring disorder, Rhinitis, Schizophrenia, Parkinsonism, Migraine, Raynaud’s Syndrome, Angina.

Group 2:
Facial sweating with or without hand sweating; Facial sweating
and
blushing, Hypertension, Angina (Hypertensive cardiac disease), …
Group 3: Hand sweating with or without axillar sweating.
Group 4: Axillar sweating (Bromidrosis), Myofascial syndrome.
Others: Psychic disorders: Schizophrenia, Social phobia, Upper
abdominal cancer
pain from Stomach, Liver, Pancreas, ….; Plantar Hyperhidrosis.