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Cardiac rhythm and conduction disturbances in patients undergoing mitral valve surgery
G K Brodell1, D Cosgrove, W Schiavone
1Department of Cardiology, Cleveland Clinic Foundation, OH 44195.
Insights
Mitral valve surgery type did not impact short-term cardiac rhythm outcomes. Both valve replacement and mitral repair showed similar rates of rhythm changes and low atrioventricular block incidence.
Area of Science:
- Cardiology
- Cardiac Surgery
Background:
- Mitral valve disease is a common cardiac condition.
- Surgical interventions like valve replacement and mitral repair are standard treatments.
- Understanding the impact of these procedures on cardiac rhythm is crucial for patient management.
Purpose of the Study:
- To compare the occurrence and course of supraventricular rhythm and atrioventricular conduction disturbances.
- To evaluate short-term cardiac rhythm outcomes in patients undergoing mitral valve replacement versus ring annuloplasty (mitral repair).
Main Methods:
- Retrospective analysis of 206 patients with isolated mitral valve disease.
- Comparison between patients who underwent valve replacement and those who had mitral repair.
- Assessment of cardiac rhythm and atrioventricular conduction disturbances via pre-discharge electrocardiography.
Main Results:
- The type of mitral valve operation (replacement vs. repair) did not significantly affect short-term cardiac rhythm outcomes.
- Incidence of rhythm changes (sinus rhythm to atrial fibrillation and vice versa) was equal in both groups.
- Both groups exhibited a low incidence of clinically significant atrioventricular block.
Conclusions:
- Mitral valve replacement and mitral repair yield similar short-term cardiac rhythm results.
- Neither surgical approach appears to predispose patients to significant conduction disturbances or major rhythm alterations post-operatively.
- These findings support the consideration of both procedures based on other clinical factors.
Abstract:
The occurrence and course of supraventricular rhythm and atrioventricular conduction disturbances were retrospectively compared in 206 patients with isolated mitral valve disease undergoing either valve replacement or ring annuloplasty (mitral repair) between January 1, 1985 and December 31, 1986. The replacement and repair groups were the same size and had approximately equal numbers of patients in sinus rhythm and atrial fibrillation preoperatively. The type of mitral valve operation did not affect the short-term outcome in terms of cardiac rhythm. For both groups, the incidence of patients crossing from sinus rhythm to atrial fibrillation and vice versa on the pre-discharge electrocardiography was equal, and both groups had a low incidence of clinically significant atrioventricular block.