PMID: 9423941Jan 10, 1998Paper

Clinical variables influencing the appearance of right bundle branch block after cardiac surgery

Cardiovascular Surgery : Official Journal of the International Society for Cardiovascular Surgery
K UeyamaJ I Thornby

Abstract

Right bundle branch block following coronary surgery is a common occurrence. Among 759 coronary surgery cases, 104 patients (13.7%) had a new right bundle branch block. Of these right bundle branch blocks, 62 were transient, and 42 (40.4%) were permanent. The large number of bypasses (3.20 versus 2.75, P = 0.0001) and stenosis of the right coronary artery (81.7% versus 66.5%, P = 0.003) was strongly associated with a new right bundle branch block. In the analysis of the permanent right bundle branch block, blood cardioplegia prevented the block from becoming permanent (35.7% versus 75.8%, P = 0.0001). Therefore, it is concluded that perioperative right bundle branch block occurs predominantly in patients who have a critical stenosis in an artery which supplies the conduction system and in those undergoing more extensive procedures. In addition, blood cardioplegia affects the conduction system less severely than does crystalloid cardioplegia.

References

May 1, 1978·The American Journal of Cardiology·S M ZeldisJ A Kastor
Sep 1, 1990·Journal of the American College of Cardiology·E M TuzcuD A Underwood
Mar 1, 1989·The Annals of Thoracic Surgery·S R GundryJ S McLaughlin
Mar 1, 1985·Journal of the American College of Cardiology·T M BatemanR J Gray
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Citations

Aug 5, 2000·European Journal of Cardio-thoracic Surgery : Official Journal of the European Association for Cardio-thoracic Surgery·R SeitelbergerB Podesser

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