Bleeding and venous thromboembolic events in patients with active cancer hospitalized for an acute medical illness.

Di Nisio, Marcello; Candeloro, Matteo; Rutjes, Anne Wilhelmina Saskia; Galli, Valerio; Tritto, Marcello; Porreca, Ettore (2018). Bleeding and venous thromboembolic events in patients with active cancer hospitalized for an acute medical illness. Thrombosis research, 169, pp. 44-49. Elsevier 10.1016/j.thromres.2018.07.010

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BACKGROUND

Cancer patients hospitalized for an acute medical illness are considered to be at high risk of venous thromboembolism (VTE). Information on bleeding and symptomatic VTE in these patients remains scant. The objectives of this study were to evaluate the incidence of bleeding and VTE during hospitalization and after discharge in a prospective cohort of hospitalized medically-ill cancer patients.

METHODS

Consecutive patients with active cancer admitted for an acute medical illness. The primary outcome was the incidence of clinically relevant bleeding. Secondary outcomes included symptomatic and incidentally detected VTE. Outcomes were recorded during hospitalization up to three months after discharge.

RESULTS

The study population consisted of 330 patients with a mean age of 73.2 (±12.1) years. During a median hospitalization of eight days, six patients (1.8%) developed a clinically relevant bleeding. Pharmacological thromboprophylaxis was administered to four of these six patients (66.6%), and 108 of 324 (33.3%) patients without bleeding. Twelve (3.6%) were diagnosed with VTE, of whom two had received thromboprophylaxis. In ten patients, VTE was detected incidentally. After discharge, 11 patients experienced major bleeding and two developed symptomatic VTE during a median follow-up of 92 days (range 19-110). Two thirds of all major bleeding events were gastrointestinal, and 87% occurred in patients with gastrointestinal or genitourinary cancer.

CONCLUSIONS

In patients with active cancer admitted for an acute medical illness, the risk of bleeding and symptomatic VTE appeared to be low during hospitalization. After discharge, the risk of bleeding was higher and significantly outweighed that of VTE.

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