Diaphragmatic myoclonus owing to electrode dislocation of implantable cardioverter defibrillator.

Myoclonus is a sudden and brief involuntary muscle contraction presenting with jerk-like movements that can occasionally involve the trunk muscles or the diaphragm as in the case of spinal myoclonus1 . We here present an unusual case with unilateral diaphragmatic myoclonus owing to electrode dislocation of an implantable cardioverter defibrillator.