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ECG changes after percutaneous edge-to-edge mitral valve repair. | LitMetric

AI Article Synopsis

Article Abstract

Background: Mitral regurgitation (MR) has a severe impact on hemodynamics and induces severe structural changes in the left atrium. Atrial remodeling is known to alter excitability and conduction in the atrium facilitating atrial fibrillation and atrial flutter. PMVR is a feasible and highly effective procedure to reduce MR in high-risk patients, which are likely to suffer from atrial rhythm disturbances. So far, electroanatomical changes after PMVR have not been studied.

Hypothesis: In the current study, we investigated changes in surface electrocardiograms (ECGs) of patients undergoing PMVR for reduction of MR.

Methods: We evaluated 104 surface ECGs from patients in sinus rhythm undergoing PMVR. P wave duration, P wave amplitude, PR interval, QRS duration, QRS axis, and QT interval were evaluated before and after PMVR and at follow-up.

Results: We found no changes in QRS duration, QRS axis, and QT interval after successful PMVR. However, P wave duration, amplitude, and PR interval were significantly decreased after reduction of MR through PMVR (P < .05, respectively).

Conclusion: The data we provide offers insight into changes in atrial conduction after reduction of MR using PMVR in patients with sinus rhythm.

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6837028PMC
http://dx.doi.org/10.1002/clc.23258DOI Listing

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