The Mary Walker effect: Mary Broadfoot Walker.

The Mary Walker effect: Mary Broadfoot Walker. J R Coll Physicians Edinb. 2019 Sep;49(3):255-259 Authors: McCarter SJ, Burkholder DB, Klaas JP, Martinez-Thompson JM, Boes CJ Abstract Mary Broadfoot Walker (1888-1974) was the first to demonstrate the 'Mary Walker effect' describing the weakness of other muscle groups following release of the arteriovenous occlusion of an unrelated exercising muscle group in patients with myasthenia gravis, which led to the search for a circulating causative agent for myasthenia gravis. She was the first to clearly demonstrate that strength temporarily improved in patients with myasthenia gravis with physostigmine or Prostigmin (neostigmine). This dramatic treatment response has been erroneously termed the 'Mary Walker effect'. Further, she noted hypokalaemia during attacks of weakness in familial periodic paralysis, pioneering treatment with potassium chloride. Although Mary Walker practiced in a nonacademic setting and trained at a time when women were not allowed to train alongside men, she was the first to convincingly demonstrate three life-changing treatments in the field of neuromuscular medicine, a feat that few physicians of any era can claim. PMID: 31497797 [PubMed - in process]
Source: Journal of the Royal College of Physicians of Edinburgh - Category: General Medicine Tags: J R Coll Physicians Edinb Source Type: research