ECG in Mitral Valve Prolapse (MVP)

MVP refers to a systolic billowing of one or both mitral leaflets into left atrium with or without mitral regurgitation.

The prevalence of this entity is 1% to 2.5% in the population

The disease can be primary or secondary in occurence.

The primarry MVP syndrome is autosomal inherited while the secondary causes may be due to conditions like Coronary Artery Disease (CAD) , Acute rheumatic carditis , Hypertrophic cardiomyopathy , WPW syndrome etc.

ECG features of Primary MVP syndrome:– Mostly the ECG is normal and diagnosis is dependent on clinical auscultation and Echocardiographic findings. However, some abnormalities seen in patients with MVP are:-

  • Inverted T waves in standard leads II, III and aVF with a wide frontal plane QRS-T angle
  • T wave inversion in precordial leads
  • ST segment depression in left and frontal precordial leads
  • QT interval prolongation
  • Atrial and ventricular arrhythmias like:-
  • Premature atrial contractions
  • Paroxysmal atrial tachycardia
  • Premature ventricular contractions
  • Complex Ventricular ectopy

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