Pulmonary M-Mode a wave: Cardiology MCQ – Answer

Pulmonary M-Mode a wave: Cardiology MCQ – Answer

A prominent a wave on the pulmonary valve M-Mode echocardiogram is seen in – Correct answer: b) Pulmonary stenosis

Prominent a wave is seen while it flattens and becomes absent in severe pulmonary hypertension. In severe pulmonary hypertension, a mid systolic notch may appear.

A prominent pulmonary valve M-Mode a dip has also been described in endomyocardial fibrosis [1]. Link to free full text with image: A prominent ‘A’ notch in the pulmonary valve M mode-one more cause of the same.

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Reference

1. Prabha Nini Gupta, Praveen Velappan, Lakshmi Thampy M S, Subair M Kunju. A prominent ‘A’ notch in the pulmonary valve M mode-one more cause of the same. BMJ Case Rep. 2015 Apr 1;2015:bcr2014208199.