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Sudomotor Response Following Endoscopic Thoracic Sympathectomy

By: Hratch Karamanoukian, MD and Raffy Karamanoukian, MD

July 28, 2008

Sudomotor Response Following ETS
Sudomotor is a medical term used to describe something that stimulates the sweat gland.
Objective assessment of sweat output after Sympathectomy has not been reported following thoracic Sympathectomy (ETS). Researchers at the Department of Cardiothoracic Surgery, Royal Victoria Hospital, Belfast, UK looked into this phenomenon in individuals who underwent T2 and T3 sympathectomy for hyperhidrosis.
The authors showed that sweat output in the palm fell significantly after sympathectomy relative to preoperative levels. Differences in sweat outputs in the left palm were statistically significant between groups at baseline and postoperatively after mental arithmetic challenge and exercise at 40 degrees Celsius. Compensatory increases in the sweat outputs from the left sole and chest were observed after sympathectomy. Dr. Bonde, the lead researcher concluded in this study that “according to objective sweat output measurements, thoracoscopic sympathectomy results in long-term control of palmar hyperhidrosis. This evaluation method is valuable in investigating recurrence of symptoms or compensatory hyperhidrosis after sympathectomy, providing a robust and objective criterion for planning [additional] intervention” .
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For more information about hyperhidrosis (excessive sweating) , as well as surgical and non-surgical hyperhidrosis treatment options, contact Dr. Karamanoukian at The Center for Excessive Sweating, a National Center of Excellence for Hyperhidrosis Treatment by email or by phone at (716) 839-3638.

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