Influence of Chronic Cardiovascular Diseases on the Severity of Imported Falciparum Malaria

Abstract

Falciparum malaria has a unique and complex pathophysiology. While sequestration of parasitized and non-parasitized erythrocytes leads to a progressive obstruction of the microcirculation, a marked systemic inflammation with endothelial dysfunction and consecutive increase in vascular permeability develops. Furthermore, most patients with severe disease present with some degree of hypovolemia. Due to the reduction in pre-load, direct myocardial suppression and increase in after-load acute falciparum malaria exerts diverse effects on the cardiovascular system. Increasing numbers of aging tourists and immigrants with chronic co-morbidities travel to countries where falciparum malaria is endemic. Age has consistently been described as a prominent risk factor for both severe disease and death from imported falciparum malaria in several large studies. Although for long suspected age-related chronic disorders have only recently been identified as risk factors for severe disease. Herein, we review the current concepts of the impact of age-related chronic medical conditions on the severity of imported falciparum malaria.