Nonbacterial thrombotic endocarditis in cancer patients: Comparison of characteristics of patients with and without concomitant disseminated intravascular coagulation

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Abstract
Thirty‐one cases with malignant neoplasm and nonbacterial thrombotic endocarditis (NBTE) were studied. A threefold increase in the incidence of NBTE over the five‐year period ending in 1976 was noticed. Seventy‐one percent of patients with NBTE had concomitant disseminated intravascular coagulation (DIC). Adenocarcinomas of the lung or ovary were the most common tumors (48%), followed by hematologic malignancies (25%). Five patients had acute leukemia, two of whom had received bone marrow transplantation. Sudden changes in the status of cardiovascular and central nervous sytems were the most common manifestations of NBTE and its complications. The possible predisposing factors included disseminated malignant neoplasms and infection with gram‐negative bacilli. Identification of high‐risk patients and early administration of preventive measures including anticoagulation might decrease the morbidity and mortality related to NBTE.