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Figure 3 Respiratory variation in pulsed Doppler MV and PV velocities in patients with constrictive pericarditis and atrial fibrillation. A decrease in the MV-E and PV-D velocities during a long filling interval immediately after the onset of inspiration was observed as shown by the thinner arrows. In contrast, there was an increase in those velocities during short filling interval at the onset of expiration as shown by a thick arrow. D = pulmonary venous diastolic wave; E = mitral inflow early filling wave; Exp = expiration; Insp = inspiration; MV = mitral inflow; PV = pulmonary venous; S = pulmonary venous systolic wave.
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