title: Implantable cardioverter-defibrillator malfunction due to mechanical failure of the header connection.
abstract: Four cases of ICD system malfunction occurring within the Medtronic Marquis family over a limited time frame are reported. These cases shared a common element of defective connections between the header post and the right ventricular pace/sense terminal pin that required intervention and reconnection. Inappropriate shocks occurred in two cases. The circumstances of these cases provide important information about the potential difficulties with these devices and highlight the deficiencies of the current system in tracking and analyzing device-related problems.
authors.affiliation: Cardiovascular Associates, Jackson, Mississippi, USA.
authors.forename: R Andrew
authors.initials: RA
authors.lastname: Pickett
authors.forename: Pablo
authors.initials: P
authors.lastname: Saavedra
authors.forename: Muhammed F
authors.initials: MF
authors.lastname: Ali
authors.forename: Dawood
authors.initials: D
authors.lastname: Darbar
authors.forename: Jeffrey N
authors.initials: JN
authors.lastname: Rottman
mesh_terms: D000328:Adult; D000368:Aged; D009202:Cardiomyopathies / Q000628:therapy*; D017147:Defibrillators, Implantable / Q000009:adverse effects*; D004554:Electric Countershock / Q000295:instrumentation*; D004868:Equipment Failure; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged