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Transient right bundle branch block causing R wave attenuation postdefibrillation
R M Kam1, H Garan, B A McGovern
1Cardiac Unit, Massachusetts General Hospital, Boston 02114, USA.
Pacing and Clinical Electrophysiology : PACE
|January 1, 1997
Summary
Defibrillation can cause a temporary drop in R wave amplitude and right bundle branch block in patients with defibrillators. This is likely due to temporary stunning of the right bundle branch, delaying conduction.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- Implantable defibrillators are crucial for managing cardiac arrhythmias.
- Sensing electrical signals, like R waves, is vital for device function.
- Defibrillation shocks can transiently affect cardiac electrical activity.