May 16, 2008European Journal of Cardio-Thoracic Surgery
Incidence and pathophysiology of atrioventricular block following mitral valve replacement and ring annuloplasty
Key result
Mitral valve replacement or ring annuloplasty resulted in a 23.5% incidence of postoperative atrioventricular block, potentially due to damage to the AV node artery.
Why the study?
What is the incidence and anatomical mechanism of atrioventricular block following mitral valve replacement or annuloplasty?
Population
391 patients undergoing mitral valve replacement or ring annuloplasty and quadrangular resection, mean age…
Design
Cohort
Follow-up
postoperative period
Authors
Discussion
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Implication
Highlights need for AV block monitoring after mitral surgery; leaves open causal confirmation of AV node artery injury.
Study Design
Type
Cohort (n=391)
Structured PICO
What is the incidence and anatomical mechanism of atrioventricular block following mitral valve replacement or annuloplasty?
P
Population
391 patients undergoing mitral valve replacement or ring annuloplasty, excluding those with preoperative AV block or concomitant procedures, evaluated retrospectively for postoperative AV block.
E
Exposure
Mitral valve replacement or ring annuloplasty and quadrangular resection
O
Outcome
Postoperative atrioventricular block (AVB)safety
Postoperative AV block is a common complication of mitral valve surgery (23.5%), likely related to the close anatomical proximity of the AV node artery to the mitral annulus in a subset of patients.
Cite This Study
Berdajs et al. (2008) conducted a cohort in Mitral valve disease requiring replacement or annuloplasty (n=391). Mitral valve replacement or ring annuloplasty was evaluated on Postoperative atrioventricular block (AVB). Mitral valve replacement or ring annuloplasty resulted in a 23.5% incidence of postoperative atrioventricular block, potentially due to damage to the AV node artery.