Skip to content

Assembly

Excessive Fragmentary Myoclonus

Authors
Stephen W. Cohen, MD (1) and Arthur S. Walters, MD (1)
Sleep Division, Dept of Neurology, Vanderbilt University Medical Center , Nashville, TN, USA.


Case

This is a 73 year old male who was sent by his primary care physician for an evaluation of excessive daytime somnolence and snoring. In addition, he has leg cramps, nocturia, and a remote history of acting out a dream. Medical history is significant for hypertension, depression, and recent stroke. Medications include aspirin, atorvastatin, fluoxetine, hydrochlorothiazide, lisinopril, and omeprazole.

His baseline polysomnogram is shown below in a 2 minute window

baseline polysomnogram

Question

What is the diagnosis?

A. Periodic Limb Movements of Sleep (PLMS)
B. REM Sleep Behavior Disorder (RBD)
C. Excessive Fragmentary Myoclonus (EFM)
D. Restless Legs Syndrome (RLS)

Answer