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  • Title: [Lassa fever associated with effusive constrictive pericarditis and bilateral atrioventricular annular constriction: a case report].
    Author: Yanase O, Motomiya T, Watanabe K, Tokuyasu Y, Sakurada H, Tejima T, Hiyoshi Y, Sugiura M, Yabata Y, Kitazumi H.
    Journal: J Cardiol; 1989 Dec; 19(4):1147-56. PubMed ID: 2486633.
    Abstract:
    A case of Lassa fever associated with effusive constrictive pericarditis and bilateral atrioventricular annular constriction was reported. A 49-year-old man, who had been diagnosed by indirect fluorescent antibody test as the first case of Lassa fever in Japan, was referred to the Hiroo Hospital because of syncope, progressive hepatomegaly, ascites and pericardial effusion in spite of pericardiocentesis and corticosteroid therapy. On admission, his blood pressure was 92/60 mmHg and he had a paradoxical pulse. Two-dimensional echocardiography revealed a localized pericardial effusion adjacent to the right ventricular wall and behind the left ventricular posterior wall. Bilateral atrioventricular annular constriction was also present. On pulsed Doppler echocardiography, the peak inflow velocities of the right and left ventricles increased during atrial systole. Right heart catheterization revealed a mean diastolic pressure gradient of 8 mmHg across the tricuspid valve. After pericardiectomy, a diastolic dip and plateau pattern became evident in the right ventricular pressure tracing, suggesting the presence of residual constriction. However, the atrioventricular annular constriction was no longer evident on two-dimensional echocardiography. This is considered the first reported case of subacute effusive constrictive pericarditis caused by Lassa fever.
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