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endoscopic thoracic sympathectomy
Endoscopic thoracic sympathectomy (ETS) is a surgical procedure in which a portion of the sympathetic nerve trunk in the thoracic region is destroyed. ETS is used to treat focal hyperhidrosis, facial blushing, Raynaud's disease and reflex sympathetic dystrophy. By far the most common complaint treated with ETS is palmar hyperhidrosis, colloquially known as "sweaty palms". The intervention is controversial and illegal in some jurisdictions. Like any surgical procedure, it has risks; the endoscopic sympathetic block (ESB) procedure and those procedures that affect fewer nerves have lower risks.
Sympathectomy physically destroys relevant nerves anywhere in either of the two sympathetic trunks, which are long chains of nerve ganglia located bilaterally along the vertebral column (a localisation which entails a low risk of injury) responsible for various important aspects of the peripheral nervous system (PNS). Each nerve trunk is broadly divided into three regions: cervical (neck), thoracic (chest), and lumbar (lower back). The most common area targeted in sympathectomy is the upper thoracic region, that part of the sympathetic chain lying between the first and fifth thoracic vertebrae.
==Indications==
The most common indications for thoracic sympathectomy are focal hyperhidrosis (that specifically affects the hands and underarms), Raynaud's phenomenon, and facial blushing when accompanied by focal hyperhidrosis. It may also be used to treat bromhidrosis, although this usually responds to non-surgical treatments, and sometimes people with olfactory reference syndrome present to surgeons requesting sympathectomy.
There are reports of ETS being used to achieve cerebral revascularization for people with moyamoya disease, and to treat headaches, hyperactive bronchial tubes, long QT syndrome,〔(Ventricular Arrhythmia/ Tachycardia )〕 social phobia, anxiety, and other conditions.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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