1) Ablation 2) Cutting out 3) Excision 4) Extirpation 1) Sympathetectomy 
A Sympathectomy is an irreversible procedure during which at least one sympathetic ganglion is removed. An example is endoscopic thoracic sympathectomy. ...
<procedure, surgery> Excision of a sympathetic nerve. Occasionally used for the treatment of reflex sympathetic dystrophy. ... (27 Sep 1997) ... 
(sim″pә-thek´tә-me) excision or interruption of some portion of the sympathetic nervous system, which produces temporary dilation of blood vessels and improved nutrition of the part the vessels supply; this is done in cases of partial arterial obstruction that has caused trophic changes. ...
Type: Term Pronunciation: sim′pă-thek′tŏ-mē Definitions: 1. Excision of a segment of a sympathetic nerve or of one or more sympathetic ganglia. Synonyms: sympathetectomy, sympathicectomy
[n] - surgical interruption of a nerve pathway in the sympathetic nervous system
noun surgical interruption of a nerve pathway in the sympathetic nervous system
surgery that interrupts a nerve pathway of the sympathetic or involuntary nervous system. · Also calleda like interruption by chemical means.