The flush that develops during whole-body heat stress depends partly on prostaglandins production in the skin. Variations in the strength of this local mechanism may contribute to individual differences in susceptibility to blushing and associated anxiety. To investigate this in the present study, the anti-inflammatory agent ibuprofen (which blocks prostaglandins formation) was applied topically to a small area of the cheek in 16 participants with a fear of blushing and in another 14 without this fear. Changes in skin blood flow were monitored at the ibuprofen-treated site and at a mirror image control site while participants sang (to induce embarrassment and blushing) and during aerobic exercise (to induce flushing). The topical ibuprofen treatment inhibited increases in cheek blood flow in both groups during both of these tasks. However, increases in cheek blood flow were greater in participants with high than low fear of blushing immediately after exercise. These findings suggest that prostaglandins contribute to dilatation of facial blood vessels both during emotional arousal (embarrassment) and aerobic exercise. Furthermore, fear of blushing may be associated with mechanisms that delay the resumption of normal vascular tone after a period of vasodilatation. Whether topical ibuprofen gel is suitable for intermittent or long-term use as an aid for blushing control requires further investigation.
http://www.sciencedirect.com/science/article/pii/S0924977X13002137
"Sympathectomy is a technique about which we have limited knowledge, applied to disorders about which we have little understanding." Associate Professor Robert Boas, Faculty of Pain Medicine of the Australasian College of Anaesthetists and the Royal College of Anaesthetists, The Journal of Pain, Vol 1, No 4 (Winter), 2000: pp 258-260
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
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
Monday, October 28, 2013
Saturday, October 12, 2013
Systemic therapy with glycopyrrolate or clonidine can be effective for HH. Nearly two-thirds responded to therapy, and less than a quarter had treatment-limiting adverse effects, all of which were self-limited and nonserious
J Am Acad Dermatol. 2012 Mar;66(3):387-92. doi: 10.1016/j.jaad.2011.01.023. Epub 2011 Aug 4.
http://www.ncbi.nlm.nih.gov/pubmed/21820204
Thursday, September 19, 2013
Neuralgia due to sympathectomy
Depending on the skill of the surgeon and difficulty encountered performing various intraoperative maneuvers, the incidence of complications following sympathectomy should be the same as that following any other extraperitoneal or extrapleural operation. However, a frequent complication following sympathectomy, and one which is apparently unrelated to operative technique, is that of postsympathectomy neuralgia.
This neuralgia is characterized by aching thigh pain after lumbar sympathectomy or aching shoulder and arm pain after cervical sympathectomy. The pain is intense in severity, sudden in onset and disappearance, and not related to any major neurologic manifestations.
Recently we have reviewed the files of the Vascular Surgical Service at the West Roxbury Veteran's Hospital and the literature on this condition. This report is a presentation of our findings.
Incidence Pain following sympathectomy has been described as "an all too common complaint."8 Reports have varied in incidence from 2.1% to "practically every case."
http://archsurg.jamanetwork.com/article.aspx?articleid=560162
Wednesday, September 11, 2013
Autonomic neuropathy in the skin following sympathectomy
In diabetics with the anhidrotic syndrome, autonomic nerve fibres were studied in skin biopsies using argentic techniques and light microscopy. The Minor test was used to differentiate normal from anhidrotic skin areas. In the anhidrotic areas, histology of the nerve fibres showed beading, spindle-shaped thickening and fragmentation adjacent to the sweat glands. These changes were similar to those observed in two patients who had previously undergone lumbar sympathectomy. No abnormalities of the sympathetic nerve endings could be found in biopsies taken from normal areas of the forearm of the same patients. We conclude that the diabetic anhidrotic syndrome, a form of diabetic autonomic neuropathy, is due to a lesion of the sympathetic nerve supply to the skin.
I. Faerman1, E. Faccio3, I. Calb2, J. Razumny1, N. Franco2, A. Dominguez2 and H. A. Podestá1
Friday, August 9, 2013
Endoscopic sympathectomy is not minimally invasive - doing the surgery through a smaller incision is not necessarily less invasive
The term ‘‘minimally invasive surgery’’ was initially applied to coelioscopic procedures such as laparoscopic cholecystectomy and hernia repair, thoracoscopic sympathectomy, and arthroscopy, but has since been abandoned, because doing the same operation through a smaller incision is not necessarily less invasive. The term ‘‘minimally invasive parathyroidectomy’’ does not fully convey the nature of the techniques, and, as previously debated in the wider field of minimal-access surgery, carries connotations of increased safety that are not necessarily supported by the existing data [12].
Surg Clin N Am 84 (2004) 717–734
F. Fausto Palazzo, MS, FRCS(Gen),
Leigh W. Delbridge, MD, FACS*
Department of Surgery, Royal North Shore Hospital, Sydney 2065, NSW, Australia
Leigh W. Delbridge, MD, FACS*
Department of Surgery, Royal North Shore Hospital, Sydney 2065, NSW, Australia
Friday, August 2, 2013
progressive hemifacial atrophy following elective sympathectomy
Some authors consider the disease a variant of mor- phea because the histologic changes are identical to deep scleroderma.2 The possible etiologies include sympathetic denervation, trauma, vascular malformations, immunologic abnormality, heredi- tary disease, or infection by a slow virus.3 To our knowledge, this is the first report of a young patient with a possible association between Parry-Romberg syndrome and thoracoscopic sympathectomy.
Theoretically, thoracoscopic sympathectomy may cause 2 of the aforementioned etiologies of Parry- Romberg syndrome: sympathetic denervation and trauma. Thoracoscopic sympathectomy is a surgical technique for the treatment of palmar hyperhidrosis.
The operation ablates the upper thoracic sympa- thetic nerve ganglions responsible for nerve stimu- lation of the sweat glands of the upper limbs. The most significant complication is Horner’s syn- drome, which results from injury to the stellate sympathetic ganglion.7 In a summary of sympa- thectomies in 67 children and adolescents, compli- cations included Horner’s syndrome in 1 patient (1%) and varying degrees of compensatory sweat- ing in 30 patients (45%).8 Despite the evidence from animal studies that sympathectomy can result in facial atrophy, to our knowledge, there were no previous reports of such an association in humans.
Cutis. 2004;73:343-344, 346.
Thursday, August 1, 2013
RSD due to nerve injury
According to the National Institute of Neurological Disorders and Stroke (NINDS), RSD is "a chronic pain condition that is believed to be the result of dysfunction in the central or peripheral nervous systems." According to MedicineNet, RSD involves "irritation and abnormal excitation of nervous tissue, leading to abnormal impulses along nerves that affect blood vessels and skin."
Animal studies indicate that norepinephrine, a catecholamine released from sympathetic nerves, acquires the capacity to activate pain pathways after tissue or nerve injury, resulting in RSD. Another theory suggests that RSD, which follows an injury, is caused by triggering an immune response and symptoms associated with inflammation (redness, warmth, swelling). RSD is not thought to have a single cause, but rather multiple causes producing similar symptoms.
http://arthritis.about.com/od/rsd/a/rsd.htm
Tuesday, July 23, 2013
Sunday, July 21, 2013
Sympathetic chain ganglia are responsible for delivering information to the rest of the body regarding stress situations and the fight or flight response
Sympathetic chain ganglia are responsible for delivering information to the rest of the body regarding stress situations and the fight or flight response. These sympathetic ganglia are the structures that are destroyed during a sympathectomy
http://www.ast.org/publications/Journal%20Archive/2009/9_September_2009/CE.pdf
http://www.ast.org/publications/Journal%20Archive/2009/9_September_2009/CE.pdf
Saturday, July 20, 2013
Two-stage unilateral versus one-stage bilateral single-port sympathectomy for palmar and axillary hyperhidrosis
Compensatory sweating occurred in 25 (19%) patients of the one-stage group and in 6 (4%) of the two-stage group (P = 0.0001). No patients developed Horner’s syndrome.
CONCLUSIONS: Both two-stage unilateral and one-stage bilateral single-port video-assisted thoracoscopic sympathectomies are effective, safe and minimally invasive procedures. Two-stage unilateral sympathectomy can be performed with a lower occurrence of compensatory sweating, improving permanently the quality of life in patients with palmar and axillary hyperhidrosis.
http://icvts.oxfordjournals.org/content/16/6/834.full.pdf+html
CONCLUSIONS: Both two-stage unilateral and one-stage bilateral single-port video-assisted thoracoscopic sympathectomies are effective, safe and minimally invasive procedures. Two-stage unilateral sympathectomy can be performed with a lower occurrence of compensatory sweating, improving permanently the quality of life in patients with palmar and axillary hyperhidrosis.
http://icvts.oxfordjournals.org/content/16/6/834.full.pdf+html
sympathectomy led to significant decrements in escape and avoidance responding
PsycNET - Option to Buy: "Chemical sympathectomy and avoidance learning in the rat.
By Di Giusto, E. L.; King, M. G.
Journal of Comparative and Physiological Psychology, Vol 81(3), Dec 1972, 491-500.
Abstract
Reports results of 5 experiments with male Wistar rats (N = 108). Depletion of peripheral sympathetic noradrenaline induced by administration of 6-hydroxydopamine, ip, led to significant decrements in escape and avoidance responding when the required response was difficult, but not when it was relatively easy to acquire. Results are similar to previous findings obtained with adrenal-demedullated Ss. Findings clarify the role of the sympathetic nervous system in the motivation of behavior elicited by aversive stimulation. Implications for 2-process theory and the "Kamin effect," or "learned helplessness," are discussed. (40 ref.) (PsycINFO Database Record (c) 2012 APA, all rights reserved)"
By Di Giusto, E. L.; King, M. G.
Journal of Comparative and Physiological Psychology, Vol 81(3), Dec 1972, 491-500.
Abstract
Reports results of 5 experiments with male Wistar rats (N = 108). Depletion of peripheral sympathetic noradrenaline induced by administration of 6-hydroxydopamine, ip, led to significant decrements in escape and avoidance responding when the required response was difficult, but not when it was relatively easy to acquire. Results are similar to previous findings obtained with adrenal-demedullated Ss. Findings clarify the role of the sympathetic nervous system in the motivation of behavior elicited by aversive stimulation. Implications for 2-process theory and the "Kamin effect," or "learned helplessness," are discussed. (40 ref.) (PsycINFO Database Record (c) 2012 APA, all rights reserved)"
Blushing and Facial Blushing Causes, Treatment, Diagnosis
Blushing and Facial Blushing Causes, Treatment, Diagnosis: "The treatment of facial blushing and or facial sweating is a controversial subject. The uncontrolled and embarrassing situation of facial sweating and blushing was thought to be easily treated with ETS. This came about when ETS was done patients with sweaty hands. Among those patients who also suffered from facial blushing and/or facial sweating the results were also successful at reducing facial blushing and/or sweating. However over the years two observations were made when this operation was applied only patients with facial blushing and or facial sweating. Percentage wise these patients developed a higher rate of severe compensatory sweating. Also these patients experienced a higher degree of dissatisfaction due to the side effects. Side effects such as facial flushed feelings, loss of stamina, facial skin sensitivity, increased amount of fatigue and others led Dr. Reisfeld to the decision not to perm ETS when only facial blushing or facial sweating were involved. The clinical experience that was accumulated over the last several years is what has allowed Dr. Reisfeld to reach this assessment."
Hyperhidrosis (excessive sweating). DermNet NZ
Hyperhidrosis (excessive sweating). DermNet NZ: "Localised hyperhidrosis may also be due to:
Stroke
Spinal damage
Peripheral damage
Surgical sympathectomy
Neuropathy
Brain tumour
Chronic anxiety disorder"
Stroke
Spinal damage
Peripheral damage
Surgical sympathectomy
Neuropathy
Brain tumour
Chronic anxiety disorder"
Thursday, July 18, 2013
Severity of compensatory sweating after thor... [Ann Thorac Surg. 2004] - PubMed - NCBI
Severity of compensatory sweating after thor... [Ann Thorac Surg. 2004] - PubMed - NCBI: "Compensatory sweating occurred in 89% of patients and was so severe in 35% that they often had to change their clothes during the day. The frequency of compensatory sweating was not significantly different among the three groups, but severity was significantly higher after Th2-4 sympathectomy for axillary hyperhidrosis (p = 0.04). Gustatory sweating occurred in 38% of patients, and 16% of patients regretted the operation.
CONCLUSIONS:
Compensatory and gustatory sweating were remarkably frequent side effects after thoracoscopic sympathectomy for primary hyperhidrosis."
CONCLUSIONS:
Compensatory and gustatory sweating were remarkably frequent side effects after thoracoscopic sympathectomy for primary hyperhidrosis."
Thursday, July 11, 2013
Impaired skin vasomotor reflexes have been found in patients with sympathetic dystrophies, dysautomias, post-regional sympathectomy and diabetic neuropathies
Not surprisingly, diminished vasoconstrictor responses, similar to the current findings, have been found
in patients with sympathetic dystrophies [26], dysautomias [27], post-regional sympathectomy [28] and
diabetic neuropathies [11].
Additionally, there have been a few reports of EM patients benefitting from sympathectomy or neurolitic
irreversible blocks of the lumbar sympathetic ganglia [22,23], while others have found the symptoms of EM to be aggravated by such treatment [24,25], possibly as a result of denervation supersensitivity.
Clinical Science (1999) 96, 507ñ512 (Printed in Great Britain)
Roberta C. LITTLEFORD, Faisel KHAN and Jill J. F. BELCH
University Department of Medicine, Section of Vascular Medicine and Biology, Ninewells Hospital and Medical School,
Dundee DD1 9SY, Scotland, U.K.
in patients with sympathetic dystrophies [26], dysautomias [27], post-regional sympathectomy [28] and
diabetic neuropathies [11].
Additionally, there have been a few reports of EM patients benefitting from sympathectomy or neurolitic
irreversible blocks of the lumbar sympathetic ganglia [22,23], while others have found the symptoms of EM to be aggravated by such treatment [24,25], possibly as a result of denervation supersensitivity.
Clinical Science (1999) 96, 507ñ512 (Printed in Great Britain)
Roberta C. LITTLEFORD, Faisel KHAN and Jill J. F. BELCH
University Department of Medicine, Section of Vascular Medicine and Biology, Ninewells Hospital and Medical School,
Dundee DD1 9SY, Scotland, U.K.
Monday, July 8, 2013
Sympathectomy interrupts neural messages that ordinarily would travel to many different organs, glands and muscles
Sympathectomy involves dissection of the main sympathetic trunk in the upper thoracic region thus interrupting neural messages that ordinarily would travel to many different organs, glands and muscles. It involves division of adrenergic, cholinergic and sensory fibers which elaborate adrenergic substances during the process of regulating visceral function.
Journal of Applied Sciences Research, 6(6): 659-664, 2010
Journal of Applied Sciences Research, 6(6): 659-664, 2010
Vascular sympathetic denervation can lead to degeneration of the smooth muscle of arteries leading to medial arterial calcification and stiffening of the arteries
Sympathetic denervation of the peripheral arterial system may occur quite early in the evolution of neuropathy and has major effects on blood flow and vascular responses and causes structural changes in the arterial wall (Edmonds 2004). Vascular sympathetic denervation can lead to degeneration of the smooth muscle of arteries leading to medial arterial calcification and stiffening of the arteries. This calcification may assume the histological characteristics of bone.
Unilateral lumbar sympathectomy in humans, both in diabetics and non-diabetics, has been show to result in medial wall calcification on the ipsilateral side (Goebel and Fuessl 1983). Unilateral sympathectomy in animals leads to excess deposition of cholesterol on the operated side and the occurrence of cholesterol sclerosis in the rabbit's aorta was accelerated by removal of the coeliac ganglion (Harrison 1938). Furthermore, in animal models, denervation of smooth muscle leads to striking pathological changes, including atrophy of muscle fibres with foci of degeneration (Kerper and Collier 1926). Arterial calcification in initiated within senescent atrophic smooth muscle (Morgan 1980).
Medial arterial calcification in the Pima Indians is significantly associated with an increased prevalence of cardiovascular mortality (Everhart et al 1988). Medial calcification may be important factor in development of peripheral vascular disease, which in diabetes shows a predilection for the distal arteries below the knee and is unexplained. Chantelau reported an association of below knee atherosclerosis to medial arterial calcification (Chantelau et al. 1995).
p. 653
Autonomic Failure: A Textbook of Clinical Disorders of the Autonomic Nervous System[Hardcover]
Christopher J. Mathias (Author), Roger Bannister (Author)- Publisher: Oxford University Press, USA; 5 edition (July 24, 2013)
- Language: English
- ISBN-10: 0198566344
- ISBN-13: 978-0198566342
Sunday, July 7, 2013
peripheral autonomic denervation affects fear and arousal
States of peripheral autonomic arousal are represented within brain regions that overlap those implicated in emotion Critchley et al. 2000a, Critchley et al. 2000b, Critchley et al. 2001a, Critchley et al. 2001b and Critchley et al. 2001c. Moreover, activity within areas involved in central autonomic control is modulated by feedback of peripheral autonomic responses (Critchley et al., 2001a). These autonomic arousal states bias emotional behavior and influence processes such as memory (e.g., Damasio et al. 1990,Cahill et al. 1994 and Cahill and McGaugh 1998). For example, amygdala is associated with memory enhancement for emotional material, a process thought to be mediated through the influence of states of arousal on amygdalo-hippocampal functional connectivity Cahill et al. 1994, Cahill and McGaugh 1998 and Cahill et al. 1999. Peripheral autonomic arousal may also influence conditioning, as suggested by pharmacological and motivational manipulations in animals Young et al. 1995 and Maren et al. 1994.
http://www.sciencedirect.com/science/article/pii/S0896627302005883
http://www.sciencedirect.com/science/article/pii/S0896627302005883
sympathectomy leads to fluctuation of vasoconstriction alternated with vasodilation in an unstable fashion. Following sympathectomy the involved extremity shows regional hyper - and hypothermia
"To quote Nashold, referring to sympathectomy, "Ill- advised surgery may tend to magnify the entire symptom complex"(38). Sympathectomy is aimed at achieving vasodilation. The neurovascular instability (vacillation and instability of vasoconstrictive function), leads to fluctuation of vasoconstriction alternated with vasodilation in an unstable fashion (39). Following sympathectomy the involved extremity shows regional hyper - and hypothermia in contrast, the blood flow and skin temperature on the non- sympathectomized side are significantly lower after exposure to a cold environment (39). This phenomenon may explain the reason for spread of CRPS. In the first four weeks after sympathectomy, the Laser Doppler flow study shows an increased of blood flow and hyperthermia in the extremity (40). Then, after four weeks, the skin temperature and vascular perfusion slowly decrease and a high amplitude vasomotor constriction develops reversing any beneficial effect of surgery (39). According to Bonica , "about a dozen patients with reflex sympathetic dystrophy (RSD) in whom I have carried out preoperative diagnostic sympathetic block with complete pain relief, sympathectomy produced either partial or no relief (40)"
Chronic Pain:
Reflex Sympathetic Dystrophy : Prevention and ManagementSunday, June 30, 2013
Sympathectomy significantly alters vascular responses
Vascular responses to warming were studied in hemiplegic patients and after sympathectomy, using venous occlusion plethysmography of foot and leg. Comparisons were made with corresponding age groups. The pattern of response was essentially unchanged in hemiplegic patients, but was altered substantially where sympathetic pathways had been interrupted.
Vasomotor Responses in the Extremities of Subjects with Various Neurologic Lesions
I. Reflex Responses to Warming
- WALTER REDISCH, M.D.;
- FRANCISCO T. TANGCO, M.D.;
- LOTHAR WERTHEIMER, M.D.;
- ARTHUR J. LEWIS, M.D.;
- J. MURRAY STEELE, M.D.;
- Dorothy Andrews, B.A.,
Sympathectomy involves division of adrenergic, cholinergic and sensory fibers which elaborate adrenergic substances during the process of regulating visceral function
G. SURGICAL SYMPATHECTOMY AND ADRENERGIC FUNCTIONPharmacol Rev March 1966 18:611-618;
Thursday, June 27, 2013
sympathectomy (ETS or ESB) can alleviate social phobia and common fears such as fear of flying, heights, open spaces, or the darkness
Is sympathectomy the new lobotomy?
"ESB may also alleviate social phobia and common fears such as fear of flying, heights, open spaces, or the darkness. In addition, it can be used to decrease trembling of the body, hands, and voice, even stuttering. It may help in alcoholism or drug withdrawal, because these are often linked with social anxiety. Sympathetic block is a gentle and exact endoscopic procedure. It is performed as day surgery under light anesthesia."
"ESB may also alleviate social phobia and common fears such as fear of flying, heights, open spaces, or the darkness. In addition, it can be used to decrease trembling of the body, hands, and voice, even stuttering. It may help in alcoholism or drug withdrawal, because these are often linked with social anxiety. Sympathetic block is a gentle and exact endoscopic procedure. It is performed as day surgery under light anesthesia."
http://www.sympatix.fi/?lang=en
Friday, June 21, 2013
These findings suggest that axon regeneration is not possible - clipping of the sympathetic chain is not a reversible procedure, patients should be informed
Ten days after clipping, all sympathetic chains displayed evident Wallerian degeneration. Twenty days after clipping, Wallerian degeneration of myelinated fibers was more widespread and also more striking. Thirty days after clipping, a very marked macrophagic reaction was visible, with multiple signs of phagocytosis of myelin debris. By 30 days post operation and 20 days after clip removal, a few residual myelin and amyelinated fibers were visible. These findings suggest that axon regeneration is not possible. CONCLUSIONS There are Wallerian degeneration and axon loss 10 days after clipping. The almost total absence of myelinated and amyelinated fibers following clip removal suggests that there was no nerve regeneration, and that therefore clipping cannot be considered a reversible technique.
Intense pain, reduced inspiratory capacity following sympathectomy
Patrícia Gomes da Silva, Daniele Cristina Cataneo, Fernanda Leite, Erica Nishida Hasimoto, Guilherme Antonio Moreira de Barros
Postgraduate Program in Anesthesiology, Botucatu School of Medicine, UNESP, Bauru, SP, Brazil.
PURPOSE To compare analgesia traditionally used for thoracic sympathectomy to intrapleural ropivacaine injection in two different doses. METHODS Twenty-four patients were divided into three similar groups, and all of them received intravenous dipyrone. Group A received intravenous tramadol and intrapleural injection of saline solution. Group B received intrapleural injection of 0.33% ropivacaine, and Group C 0.5% ropivacaine. The following aspects were analyzed: inspiratory capacity, respiratory rate and pain. Pain was evaluated in the immediate postoperative period by means of the visual analog scale and over a one-week period. RESULTS In Groups A and B, reduced inspiratory capacity was observed in the postoperative period. In the first postoperative 12 hours, only 12.5% of the patients in Groups B and C showed intense pain as compared to 25% in Group A. In the subsequent week, only one patient in Group A showed mild pain while the remainder reported intense pain. In Group B, half of the patients showed intense pain, and in Group C, only one presented intense pain. CONCLUSION Intrapleural analgesia with ropivacaine resulted in less pain in the late postoperative period with better analgesic outcomes in higher doses, providing a better ventilatory pattern.
http://lib.bioinfo.pl/meid:154350/pmid
Sunday, June 16, 2013
Brachial plexopathy is another well recognised but not much publicised side-effect of sympathectomy
Brachial plexus dysfunction (brachial plexopathy) is a form of peripheral neuropathy. It occurs when there is damage to the brachial plexus, an area on each side of the neck where nerve roots from the spinal cord split into each arm's nerves.
Damage to the brachial plexus is usually related to direct injury to the nerve, stretching injuries (including birth trauma), pressure from tumors in the area (especially from lung tumors), or damage that results from radiation therapy.
Brachial plexus dysfunction may also be associated with:
- Birth defects that put pressure on the neck area
- Exposure to toxins, chemicals, or drugs
- General anesthesia, used during surgery
- Inflammatory conditions, such as those due to a virus or immune system problem
In some cases, no cause can be identified.
Symptoms
- Numbness of the shoulder, arm, or hand
- Shoulder pain
- Tingling, burning, pain, or abnormal sensations (location depends on the area injured)
- Weakness of the shoulder, arm, hand, or wrist
Sunday, April 7, 2013
cardiovascular effects, tremulousness and sweating produced by thyroid hormonas can be reduced or abolished by sympathectomy
Although, plasma catecholamine levels are normal in hyperthyroidism, the cardiovascular effects, tremulousness and sweating produced by thyroid hormonas can be reduced or abolished by sympathectomy. (p. 133)
Introduction To Endocrinology
Wednesday, March 20, 2013
Trouble in the Gap: A Bioethical and Sociological Analysis of Informed Consent for High-Risk Medical Procedures - Springer
Trouble in the Gap: A Bioethical and Sociological Analysis of Informed Consent for High-Risk Medical Procedures - Springer: "we argue that “informed” consent is a process that is usually incomplete, despite trappings and assumptions that help to create the illusion of completeness."
Saturday, January 19, 2013
after sympathectomy the extremity will be more apt to have disturbance of circulation and is left unprotected from fluctuation in circulation
1. Sympathectomy is analogous to the act of killing the messenger. The sympathetic nervous system has the critical job of properly controlling and preserving the circulation in different parts of the body, especially in the extremities. By paralyzing the system, the extremity will be more apt to have disturbance of circulation and is left unprotected from fluctuation in circulation.
Sympathectomy is similar to permanently removing the central heat and air-conditioning system and never replacing it because of malfunction.
Sympathectomy permanently damages the temperature regulatory system. The reason sympathectomy does not cause side effects other than ineffective control of pain as well as impotence and orthostatic hypotension is because it is invariably partial and incomplete.H. Hooshmand, M.D.: Chronic Pain
9780849386671
Chronic Pain: Reflex Sympathetic Dystrophy Prevention and Management
ISBN 10: 0849386675 / 0-8493-8667-5
ISBN 13: 9780849386671
Publisher: CRC Pr I Llc
Publication Date: 1993
Binding: Hardcover
Wednesday, January 16, 2013
Register all trials, report all results – it's long overdue
Register all trials, report all results – it's long overdue: "If researchers go to the effort of getting funds, recruiting patients, and following them up, you would think that they would be keen to publish the results. So it’s surprising that our best estimates show around half of all completed clinical trials have never been published in academic journals. And the half we have is biased towards trials with positive results."
'via Blog this'
'via Blog this'
Friday, January 11, 2013
The effect of dysfunction of the autonomic nervous system on experienced feelings and emotions
Hohmann, G.W. : The effect of dysfunction of the autonomic nervous system on experienced feelings and emotions
Paper read at Conference on Emotions and Feelings at New School for Social Research, New York, Oct 1962.
Sherrington, C.S.: Experiments on the value of vascular and visceral factors for the genesis of emotion
Proc. Roy.Soc., 1900, 66, 390-403
Wenger, M.A.: Emotion as visceral action: an extension of Lange's theory. In Reymert, M.L., Feelings and emotions: the Moosehart ymposium, New York: McGraw-Hill, 1950. Pp.3-10.
Wynne, L.C., and Solomon, R.L.: Traumatic avoidance learning: acquisition and extinction in dogs deprived of normal peripheral autonomic function.
Genet. psychol. Monogr., 1955, 52, 241-84
Landis, C., and Hunt, W. A. Adrenalin and emotion.
Psychol. Rev., 1932, 39, 467-85.
Schachter, S., and Wheeler, L.: Epinephrine, chlorpromazine, and amusement.
J. of abnorm. soc. Psychol., 1962, 65, 121-28.
Thursday, January 3, 2013
Complications of endoscopic sympathectomy - hypoxia, hypotension, haemothorax, pneumothorax
"there are some potentially serious anaesthetic sequelae. Despite the use of various analgesic techniques, including intrapleural bupivacaine and systemic opioids, postoperative chest pain is a common and distress- ing feature, with a duration of 12 hours or more.
In a recent prospective study of 58 patients undergoing this procedure, Jedeikin et al reported hypoxia (with an arterial oxygen saturation of 70%) and hypotension (with decrease in arterial pressure to < 50mmHg) as uncommon but important complications.
'These events maybe the result of compression of the mediastinum and major vessels by carbondioxide insufflation. In addition, during bilateral procedures, lesser degrees of hypoxia were common place with deflation of the lung on the second side, despite apparently adequate reinflation of the first lung. Fifteen percent of patients had pneumothorax and 7%required underwater drainage for haemothorax or pneumothorax."
A C QUINN R E EDWARDS PJNEWMAN W J FAWCETT
BMJ VOLUME 306 26JUNE1993
It has been shown in animals that sympathectomy of one side of the body leads to an increase in the development of tumors on the denervated side
Coujard R, Heitz F. Cancerologic: Production de tumeurs malignes consecutives a des lesions des fibres sympathiques du nerf sciatique chez le Cobaye. C R Acad Sci 1957; 244: 409-411.
Besedovsky H, DelRey A, Sorkin E, DaPrada M, Keller H. Immunoregulation mediated by the sympathetic nervous system. Cellular Immun 1979; 48:346-355.
Stein-Werblowsky R. The sympathetic nervous system and cancer. Exper Neuro 1974; 42:97-100.
Delrey A, Besedovsky H, Sorkin E, DaPrada M, Arrenbrecht S. Immunoregulation mediated by the sympathetic nervous system, II. Mol Immunol 1981; 63:329-334.
Wednesday, January 2, 2013
in the absence of autonomic arousal, behavior that appears emotional will not be experienced as emotional
"In the presence of a barking dog, for example, the sympathectomized cats manifested almost all of the signs of feline rage. Finally, Cannon notes the report of Dana (1921) that a patient with a spinal-cord lesion and almost totally without visceral sensation still manifested emotionality.
For either the Jamesian or the present formulation such data are crucial, since both views demand visceral arousal as a necessary condition for emotional arousal. When faced with this evidence, James's defenders (e.g., Wenger, 1950; Mandler, 1962) have consistently made the point that the apparently emotional behavior manifested by sympathectomizied animals and men is well-learned behavior, acquired long before sympathectomy. There is a dual implication in this position: first, that sympathetic arousal facilitates the acquisition of emotional behavior, and second, that sympathectomized subjects act but do not feel emotional. There is a small but growing evidence supporting these contentions. Wynne and Solomon (1955) have demonstrated that sympathectomized dogs acquire an avoidance response considerably more slowly than control dogs. Further, on extinction trials most of their 13 sympathectomized animals extinguished quickly, whereas not a single one of the 30 control dogs gave any indication of extinction over 200 trials. Of particular interest are two dogs who were sympathectomized after they had acquired the avoidance response. On extinction trials these two animals behaved precisely like the control dogs - giving no indication of extinction. Thus, when deprived of visceral innervation, animals are quite slow in acquiring emotionally-linked avoidance responses and in general, quick to extinguish such responses." (p. 163)
"A line of thought stimulated by the Wynne and Solomon (1955) and the Hohmann (1962) studies may indeed be the answer to Cannon's observations that there can be emotional behavior without visceral activity. From the evidence of these studies, it would appear, first, that autonomic arousal greatly facilitates the acquisition of emotional behavior but it is not necessary for its maintenance if the behavior is acquired prior to sympathectomy; and second, that in the absence of autonomic arousal, behavior that appears emotional will not be experienced as emotional." (p. 167)
Psychobiological Approaches to Social Behavior
P. Herbert Leiderman, David Shapiro, Harvard Medical School. Dept. of Psychiatry, United States. Office of Naval Research - 1964 - 203 pagesSaturday, December 15, 2012
The Society of Thoracic Surgeons Expert Consensus for the Surgical Treatment of Hyperhidrosis -- Cerfolio et al. 91 (5): 1642 -- The Annals of Thoracic Surgery
The Society of Thoracic Surgeons Expert Consensus for the Surgical Treatment of Hyperhidrosis -- Cerfolio et al. 91 (5): 1642 -- The Annals of Thoracic Surgery: "Because the goal of this procedure is to improve quality of life, complications should be minimal and essentially eliminated. The primary side effects of hyperhidrosis surgery include CH, bradycardia, and Horner's syndrome. It is important for patients to be aware, however, of all of the possible complications that can occur. In general, "the higher the level of blockade on the chain, the higher is the expected regret rate" [26]."
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Wednesday, December 12, 2012
Thoracoscopic Sympathectomy for Isolated Facial Blushing -- Licht et al. 81 (5): 1863 -- The Annals of Thoracic Surgery
Thoracoscopic Sympathectomy for Isolated Facial Blushing -- Licht et al. 81 (5): 1863 -- The Annals of Thoracic Surgery: "Criticism has been raised about surgical treatment for facial blushing because there is very little evidence that the patients most likely to pursue surgical treatment for facial blushing actually blush more readily and intensely than other people [21]. It has been pointed out that facial blood flow during acute embarrassment seems to be unrelated to ratings of the self-reported frequency of blushing [22]. On the other hand, self-consciousness and fear of blushing correlate well with subjective estimates of blushing frequency and intensity [22]. It has therefore been suggested that if the source of the patient's problem is anxiety about blushing rather than blushing per se, anxiety would be a more appropriate target for treatment than permanently eliminating the normal regulation of facial blood flow and sweating [21]."
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Monday, December 10, 2012
The vasodilating effect of spinal dorsal column stimulation is mediated by sympathetic nerves - Springer
The vasodilating effect of spinal dorsal column stimulation is mediated by sympathetic nerves - Springer: "Immediately after sympathectomy, the contralateral right arm became increasingly cold and cyanotic and the patient complained of chronic painful coldness and severe cold-intolerance in the right arm. Attempts to pharmacologically vasodilate the arm with felodipine did not affect the local vasoconstriction and pain. Dorsal column stimulation (associated with symmetrical paraesthesia in both arms) induced an immediate and marked (ten-fold) increase in skin blood flow in the right arm (and in the leg), whereas skin blood flow in the left arm remained unaffected. The lack of vasomotor response in the left arm was not due to maximal vasodilatation at rest, since skin blood flow in the left arm showed a normal capacity for axon reflex vasodilatation following antidromic activation of sensory afferents. The results suggest that the marked vasodilatation induced by dorsal column stimulation is mediated by sympathetic vasomotor fibres, via modulation of central neuronal circuits involved in the regulation of skin sympathetic discharge."
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Medical Board Disciplines ETS surgeon Dr Nielson
Nielson, David Hugh, M.D., Lic. #K0962, San Antonio TX
On February 5, 2010, the Board and Dr. Nielson entered into an agreed order requiring Dr. Nielson to complete 15 hours of CME in medical record-keeping, risk management and ethics within one year;; and pay an administrative penalty of $4,000 within 60 days. The action was based on the Board’s finding that Dr. Nielson failed to keep adequate medical records, failed to use proper diligence in his professional practice, and failed to adequately supervise the activities of those acting under his supervision. The Board found that digital photos that were part of patient records were inadvertently deleted and that Dr. Nielson authorized a person to represent his clinic and that person misrepresented risks and procedures for Dr. Nielson’s treatment of rosacea.
http://www.tmb.state.tx.us/news/press/2010/021710.php
Saturday, December 1, 2012
Transection below T8-T10 is not accompanied by reflex sweating
Reflex sweating in patients with spina... [Arch Phys Med Rehabil. 1977] - PubMed - NCBI: "Sweat glands derive their innervation from the sympathetic nervous system. The spinal sympathetic structures that are located in the intermediolateral areas extend from T1-L2 segments and are under the control of hypothalamic centers. Cord transection abolishes the supraspinal control of sudorimotor function. Since sympathetic innervation does not follow a clear segmental distribution, normal sweating may be preserved at a higher or lower level than skin sensation. Nonthermoregulatory reflex sweating is an indication of unchecked spinal cord facilitation and is precipitated by afferent stimuli from bladder, rectum, and various other sources. It is usually a manifestation of mass reflex or autonomic crisis and occurs particularly in cervical or high thoracic lesions. Transection below T8-T10 is not accompanied by reflex sweating. The phenomenon of thermal relfex sweating is controversial. Although some aspects of nonthermoregulatory reflex sweating are still unclear, proper immediate and continuing preventive management will reduce the incidence of this and other autonomic manifestations. "
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Monday, November 26, 2012
Hemodynamic changes in vertebral and carotid arteries were observed after sympathicotomy
T3 sympathicotomy segment was the most frequent transection done (95.83%), as only ablation (25%) or in association with T4 (62.50%) or with T2 (8.33%). It was observed increase in RI and PI of the common carotid artery (p < 0.05). The DPV of internal carotid artery decreased in both sides (p < 0.05). The SPV and the DPV of the right and left vertebral arteries also increased (p < 0.05). Asymmetric findings were observed so that, arteries of the right side were the most frequently affected.
CONCLUSIONS: Hemodynamic changes in vertebral and carotid arteries were observed after sympathicotomy for PH. SPV was the most often altered parameter, mostly in the right side arteries, meaning significant asymmetric changes in carotid and vertebral vessels. Therefore, the research findings deserve further investigations to observe if they have clinical inferences.
http://www.ncbi.nlm.nih.gov/pubmed/16186983
Monday, November 19, 2012
Gustatory sweating, flushing and other responses after sympathectomy
Gustatory sweating on the head, neck and arms, often occurs after cervico-thoracic sympathectomy. Haxton (1948) reported an incidence of 36 percent, the same as in the present series. It was thought that some information about regeneration in the cervical sympathetic might be revealed by investigation of this surgical curiosity.
Although sweating is the common gustatory response after cervical sympathectomy, other changes are experienced. Haxton (1948) described associated paresthesia and flushing, gooseflesh may occur (Herxheimer, 1958) and vaso-constriction is reported in this paper. These occur together or separately and occasionally sweating might be absent. The subject has been confused by comparison with post-parotidectomy gustatory sweating which has a different mechanism (Glaister et al.,1958; Bloor, 1958).
Sweating is produced by cholinergic sympathetic fibres. In normal individuals both vasocontriction and gooseflesh are adrenergic. This also holds in gustatory responses. Figure 2 shows blocking of sweating by atropine, whilst gooseflesh continues unchanged.
The tingling sensations were described as being unlike normal sensation, and likened to plucking out of hair. In one patient in was so unpleasant that she refused to take a test stimulus. Flushing usually occurs on the upper chest and neck, and is an erythema with sharp demarcation, not associated with a rise in skin temperature.
Of the patients, 29 were found to have gustatory responses, and 24 were studied in detail. Of 22 patients with sweating who could be studied, 11 had gooseflesh, 10 tingling, 6 flushing, and 4 vasoconstriction. Four patients, however, had no sweating and their gustator responses consisted of gooseflesh and tingling in one, tingling alone, and flushing in two. None of these four showed vasoconstriction.
The stimulus for testing used was usually Worcester sauce, but specificity of the response was sometimes great, and one patient reacted only to boiled sweets made by one particular firm.
Sweating is produced by cholinergic sympathetic fibres. In normal individuals both vasocontriction and gooseflesh are adrenergic. This also holds in gustatory responses. Figure 2 shows blocking of sweating by atropine, whilst gooseflesh continues unchanged.
The tingling sensations were described as being unlike normal sensation, and likened to plucking out of hair. In one patient in was so unpleasant that she refused to take a test stimulus. Flushing usually occurs on the upper chest and neck, and is an erythema with sharp demarcation, not associated with a rise in skin temperature.
Of the patients, 29 were found to have gustatory responses, and 24 were studied in detail. Of 22 patients with sweating who could be studied, 11 had gooseflesh, 10 tingling, 6 flushing, and 4 vasoconstriction. Four patients, however, had no sweating and their gustator responses consisted of gooseflesh and tingling in one, tingling alone, and flushing in two. None of these four showed vasoconstriction.
The stimulus for testing used was usually Worcester sauce, but specificity of the response was sometimes great, and one patient reacted only to boiled sweets made by one particular firm.
http://brain.oxfordjournals.org/content/92/1/137.extract &
http://ang.sagepub.com/content/17/3/143.extract
http://ang.sagepub.com/content/17/3/143.extract
Sunday, November 11, 2012
not exposing patients to the risk of experiencing the side effects of sympathectomy
The use of oxybutynin for treating ... [An Bras Dermatol. 2011 May-Jun] - PubMed - NCBI: "not exposing patients to the risk of experiencing the side effects of sympathectomy"
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Saturday, November 10, 2012
rates and characteristics of the paresthesia following needlescopic VATS are similar to those observed after conventional VATS
Incidence of chest wall paresthesia ... [Eur J Cardiothorac Surg. 2005] - PubMed - NCBI: "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 compensatory hyperhidrosis 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."
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Monday, October 22, 2012
Stellate ganglion block may relieve hot flashes by interrupting the sympathetic nervous system
Stellate ganglion block may relieve hot flash... [Med Hypotheses. 2007] - PubMed - NCBI: "the wide range of conditions that have been reported to respond favorably to stellate ganglion block suggest that its effectiveness may not be solely the result of increased blood flow nor restricted just to its sphere of innervation. We have found that stellate ganglion block is effective in the treatment of hot flashes in postmenopausal women, as well as those with estrogen depletion resulting from breast cancer treatment. Based on evidence that hot flashes may be centrally mediated and that the stellate ganglion has links with the central nervous system nuclei that modulate body temperature, we hypothesize that the stellate ganglion block provides relief of hot flashes by interrupting the central nervous system connections with the sympathetic nervous system, allowing the body's temperature-regulating mechanisms to reset. If this mechanism can be confirmed, this would provide women with intractable hot flashes with an effective, potentially long-lasting means of relieving their symptoms, and potentially widen the range of indications for stellate ganglion block to include other centrally mediated syndromes."
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Thursday, October 18, 2012
These observations further emphasize our ignorance of the mechanisms responsible for primary hyperhidrosis and of the effect of sympathetic ablation
"These observations further emphasize our ignorance of the mechanisms responsible for primary hyperhidrosis and of the effect of sympathetic ablation on the function of the remaining sympathetic system."
"Only investigators who deviate from accepted standards innovate and thus advance science. Obviously, such deviations may also result in disasters;"
Statement made by the former President of the International Society of Sympathetic Surgery, and ETS surgeon, Moshe Hashmonai (Invited Commentary) Endoscopic Lumbar Sympathectomy Following Thoracic Sympathectomy in Patients with Palmoplantar Hyperhidrosis
World J Surg (2011) 35:54–55 DOI 10.1007/s00268-010-0809-5
Monday, September 24, 2012
Sympathectomy results in a substantial interference in regulatory processes of the body
"ESB (whether as ETS as ETSC or ELS) generally represents a substantial interference in regulatory processes of the body. Therefore decision for this operation requires that previously conservative treatments were made. An ESB is therefore at the end of a treatment history, and never at the beginning."
Dr. Christoph H. Schick, ETS surgeon, President of the International Society of Sympathetic Surgery (ISSS)
text has been translated by google from German
http://www.dhhz.de/index.php?page=8&subPage=§ion=32
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