Percutaneous transluminal angioplasty in the treatment of extensive LSD-induced lower extremity vasospasm refractory to pharmacologic therapy.

Ergot poisoning is an uncommon but recognized cause of peripheral vascular ischemia and lower extremity gangrene. The traditional management of ergot-related vasospasm includes withdrawal of the inciting compound and supportive care. The authors report a rare case of ergotism related to lysergic acid diethylamide (LSD) ingestion and describe unconventional treatment of associated extensive lower extremity vasospasm with use of balloon percutaneous transluminal angioplasty.