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Medical AI Inquiry: You was designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.  Labels: OBJECTIVE, DESIGN, SETTING, PARTICIPANTS, INTERVENTIONS, MEASUREMENTS AND MAIN RESULTS. Meshes: Aged, Blood Coagulation, Cardiac Surgical Procedures, Female, Humans, Male, Middle Aged, Postoperative Hemorrhage, Prospective Studies, Sensitivity and Specificity, Thrombelastography.
user
Can ROTEM thromboelastometry predict postoperative bleeding after cardiac surgery? Context: To evaluate the predictive ability of ROTEM thromboelastometry (Pentapharm, Basel, Switzerland) to identify patients bleeding more than 200 mL/h in the early postoperative period after cardiac surgery. A prospective observational study. A single university hospital. Fifty-eight adult male and female patients undergoing primary coronary artery revascularization. Blood samples taken preoperatively and at 1, 2, and 3 hours after surgery. Eight patients bled at least 200 mL/h in the study period. All (100%) had at least 1 abnormal ROTEM result in the study period. Of the 49 patients not found to be bleeding more than 200 mL/h in any of the first 4 postoperative hours, 46 (94%) had at least 1 abnormal ROTEM result. The positive and negative predictive values were 14.8% and 100%, respectively.
assistant
ROTEM thromboelastometry has poor predictive utility to identify patients who bleed more than 200 mL/h in the early postoperative period after cardiac surgery. However, its negative predictive value was good.