Automatic R-wave and impedance testing with the modern patient alert system to reduce inappropriate implantable cardioverter defibrillator shocks due to lead fracture.
A 62-year-old man was afflicted with implantable cardioverter defibrillator (ICD) shocks during sinus rhythm. Stored ICD data revealed that sensing of noise due to fracture of the ventricular lead triggered the delivery of shocks. Since the lead fracture developed suddenly, it is suggested that close, early attention should be paid to the potential of such events during follow-up of ICD leads.
Chinushi
Masaomi
M
School of Health Science, Niigata University School of Medicine, 2-746 Asahimachi, Chuou-ku, Niigata 951-8518, Japan. masaomi@clg.niigata-u.ac.jp
Hosaka
Yukio
Y
Ikarashi
Noboru
N
Iijima
Kenichi
K
Furushima
Hiroshi
H
Aizawa
Yoshifusa
Y
D017147:Defibrillators, Implantable / Q000009:adverse effects; D017097:Electric Impedance; D004556:Electric Injuries / Q000209:etiology* / Q000517:prevention & control*; D004562:Electrocardiography / Q000379:methods*; D004567:Electrodes, Implanted / Q000009:adverse effects*; D004868:Equipment Failure; D019544:Equipment Failure Analysis / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged