Postexercise facilitation of reflexes is not common in Lambert-Eaton myasthenic syndrome.
Postexercise facilitation (PEF) with clinical reflexes, H-reflex, and T-reflexes at the ankle and knee was systematically studied in 16 patients with Lambert-Eaton myasthenic syndrome (LEMS). PEF was observed in ankle and knee deep tendon reflexes in five patients, in H-reflex in three patients, and in T-reflexes in six patients. When all reflex tests were combined, 7 (43.7%) of 16 patients showed PEF by at least one test. The authors conclude that the PEF of reflexes, the most helpful diagnostic clinical marker for LEMS, is not common.
Odabasi
Z
Z
Department of Neurology, The Veterans Affairs Medical Center, The University of Alabama at Birmingham, 34294, USA.
Demirci
M
M
Kim
D S
DS
Lee
D K
DK
Ryan
H F
HF
Claussen
G C
GC
Tseng
A
A
Oh
S J
SJ
D000328:Adult; D000368:Aged; D004558:Electric Stimulation / Q000379:methods; D005080:Exercise Test / Q000379:methods / Q000706:statistics & numerical data; D005260:Female; D006181:H-Reflex / Q000502:physiology; D006801:Humans; D015624:Lambert-Eaton Myasthenic Syndrome / Q000175:diagnosis / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D012021:Reflex, Abnormal / Q000502:physiology