Disseminated intravascular coagulation (DIC) is a well known hemostatic com
plication of solid tumors. We evaluated the occurrence of DIC in 1117 patie
nts with solid tumors. Of these patients, 76 (6.8%) were diagnosed with DIC
. There were a total of 145 bleeding and cloting , ting episodes reported i
n the 76 patients, Thrombocytopenia, hypofibrinogemia, elevated D-dimer and
fibrinogen degradation products were the most common coagulation abnormali
ties encountered in patients with DIC. In multivariate analysis, older age
(p = .0001), male gender (p = .009), advanced malignancies (p = .027), brea
st cancer (p = .038) and the presence of necrosis in the tumor specimen (p
= .004), emerged as independent factors significantly related to the occurr
ence of DIC in patients with solid tumors. Of the 76 patients, 25 (33%) ach
ieved response to treatment of DIC as defined in the study. Patients with e
arly stage and advanced malignancies who developed DIC had inferior surviva
l when compared with their counterparts without DIC (p = .039 and p = .005,
respectively). Taken together, this study indicates that certain clinical
and laboratory features are more common in patients with solid tumors who d
eveloped DIC. The occurrence of DIC appears to have an independent effect o
n survival of patients with cancer. Cooperative studies are encouraged to b
etter address the usefulness and optimal prophylactic heparin regimen in pa
tients at risk for DIC.