RESULTS: During the study period, 60 patients with TC were admitted to the ICU of the INCan. The mean age of the patients was 28.3 ± 8.2 years. The most common histologic type was non-seminomatous germ cell tumors (91.7%). Forty-nine patients (81.7%) were classified as having a poor prognosis, 9 patients (15%) as intermediate prognosis and 2 patients (3.3%) as good prognosis. During the first 24 hours of ICU admission, invasive mechanical ventilation was required by 43 patients (71.6%) for a median duration of 3 days (interquartile range, 1-7), and vasopressors were required by 27 patients (24%). The median length of stay in the hospital wards before ICU admission was 2 days (1-7). The length of stay in the ICU and hospital were 3 (2-6) and 8 (5-15) days, respectively. The ICU, hospital, and 6-month mortality rates were 38.3, 45, and 63.3%, respectively. Cox multivariate analysis identified the white blood cells count (HR=1.06, 95%CI=1.01-1.11, P=0.005), ionized calcium (HR=1.23, 95%CI=1.01-1.50, P=0.037), and 2 or more organ failure during the first 24 hours after ICU admission (HR=3.86, 95%CI = 1.96-7.59, P<0.001) as independent predictors of death to 6 months.