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Coagulation system abnormalities in patients with malignancy ranges from asymptomatic laboratory abnormalities to overt clinical manifestations. To determine the incidence and significance of clinically manifest thromboembolic phenomena in patients with high-grade gliomas, the records were analyzed of 77 patients that presented between January 1985 and June 1988. Fifteen patients (19%) had clinically manifest deep venous thrombosis and/or pulmonary emboli during the course of their disease. All these patients were ambulatory before and at the time of diagnosis of the event. The thromboembolic episodes occurred at the time of initial management of the primary tumor while there was documented clinical improvement in the functional status of the patient or at the time of progression of the disease. One patient died as a result of a pulmonary embolism; in two others, an embolism was a significant contributor to the patient's death. Anticoagulation resulted in complications in two of eight patients treated. Thromboembolic events occur with high frequency in patients with high-grade gliomas and contribute to the high morbidity and mortality seen in these patients. The optimum approach to screening and the treatment of these events has not been determined.
Cheruku et al. (Sun,) studied this question.