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Figure 2 (A) Doppler findings in constrictive pericarditis. Pulsed-wave Doppler recording of the mitral inflow velocity in the patient described in Figure 1, showing a marked increase in the mitral inflow E velocity (single arrowhead) with expiration compared with inspiration (double arrowhead). (B) Follow-up echocardiogram one month later, showing no significant increase in the mitral inflow E velocity with expiration, consistent with resolution of constrictive hemodynamics. I = inspiration; E = expiration.