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[Electro-echocardiographic correlation in mitral valve prolapse].

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Electrocardiogram (ECG) findings reveal frequent ventricular repolarization abnormalities in patients with mitral valve prolapse. These ECG changes correlate significantly with left ventricular dilatation and specific prolapse locations, aiding in diagnosis.

Area of Science:

Cardiology
Medical Diagnostics

Background:

Mitral valve prolapse (PVM) is a common cardiac condition.
Electrocardiography (ECG) and echocardiography (ECO) are key diagnostic tools.

Purpose of the Study:

To investigate ventricular depolarization and repolarization alterations in PVM patients.
To correlate ECG findings with prolapse characteristics and cardiac dimensions.
To assess the diagnostic utility of ECG in PVM.

Main Methods:

33 patients with echocardiographically diagnosed PVM.
19-lead ECG recordings analyzed for depolarization and repolarization.
Echocardiography used for assessing valve prolapse and cardiac dimensions.

Main Results:

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High prevalence (84.8%) of ventricular repolarization abnormalities.
ECG-detected left ventricular hypertrophy agreed with ECO in 77% of cases.
Significant correlation between left ventricular dilatation and abnormal repolarization (p < 0.01).
Specific repolarization patterns linked to posterior or bivalvular prolapse.

Conclusions:

Ventricular repolarization abnormalities are common in PVM.
ECG alterations correlate with cardiac structural changes and prolapse type.
ECG, particularly repolarization analysis, is valuable for PVM diagnosis and assessment.