Figure 3

Figure shows the effect of AVD on mitral regurgitation severity. Mitral inflow pulsed Doppler (A) and color Doppler showing mitral regurgitation in the apical 4 chamber view (B) at a paced AV delay of 150 ms and mitral inflow pulsed Doppler (C) and color Doppler showing mitral regurgitation severity in the apical 4 chamber view (D) at paced AV delay of 50 ms. Diastolic mitral regurgitation is seen at an AV delay of 150 ms (black arrowheads, A). Note significant mitral regurgitation in panel B which decreased in panel D at short AV delay.