Low cardiac output in a case of constrictive pericarditis with protein-losing enteropathy.

A man in his late seventies was suffering from right-sided pleural effusion and worsening leg edema. He was diagnosed with a rare case of secondary protein-losing enteropathy caused by constrictive pericarditis (CP) using technetium 99m-labeled human serum albumin abdominal scintigraphy and comprehensive Doppler echocardiography. We herein report the importance of evaluating a low cardiac output in addition to established Doppler echocardiographic findings for making a diagnosis of CP coexistent with protein-losing enteropathy.