Abstract
A rare complication of atrial flutter developed during a febrile attack in a man with P. vivax and P. falciparum (gametocyte only) infection. Until being infected with the malaria parasites, the patient had been in good health and had not noticed discomfort in the chest. The arrhythmia disappeared spontaneously after starting treatment with chloroquine. The possible role of P. vivax schizonts occluding capillary vessels in the myocardium is herein discussed.
