Click of mitral valve prolapse – MCQ – Answer

Click of mitral valve prolapse – MCQ – Answer

Mid systolic click of mitral valve prolapse becomes — on squatting – Correct answer: b) Late systolic

With squatting venous return increases and the ventricular cavity becomes larger. The click gets delayed and the murmur which occurs after the click becomes shorter. Prompt standing reduces venous return leading to a smaller ventricular cavity and early occurrence of the click with longer murmur of mitral regurgitation.

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Reference: Braunwald’s Heart Disease: A Textbook of Cardiovascular Medicine, 10th Edition. Chapter 8: Physical Examination of the Heart and Circulation