Transient right bundle branch block: A rare manifestation in cardiac contusion
Pritha Subramanyam1, Arvind Reddy Devanabanda1, William R Slater1
1Department of Medicine, Division of Cardiology, New York University School of Medicine, New York, NY, USA.
Abstract:
Transient right bundle branch block following blunt cardiac injury is a known but under-recognized manifestation of cardiac contusion. The first case documented in the medical literature occurred in 1952 in a 22-year-old man who was thrown from a motorcycle. Due to their relatively anterior location, the right ventricle and right bundle branch are at particular risk of injury in contusion. We present here a case in which a 24-year-old man suffered a blunt chest trauma leading to a right bundle branch block and elevated troponin levels, consistent with cardiac contusion. His conduction system abnormalities rapidly resolved and he recovered completely, with no clinical sequelae.
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