Prognostic value of the activated partial thromboplastin time after orthotopic liver transplantation. A prospective study

• Published in: International journal of clinical & laboratory research 1994-12, Vol.24 (4), p.220-222
• Main Authors: Martinelli, I, Moia, M, Gridelli, B, Panzeri, D, Langer, M, Mannucci, P M
• Format: Article
• Language: English
• Subjects: Adolescent; Adult; Child; Child, Preschool; Female; Humans; Infant; Liver Transplantation - mortality; Liver Transplantation - statistics & numerical data; Male; Middle Aged; Partial Thromboplastin Time; Predictive Value of Tests; Prognosis; Prospective Studies; Survival Rate
• ISSN: 0940-5437; 1434-4467
• DOI: 10.1007/BF02592467

In this prospective study, we evaluated the predictive value of activated partial thromboplastin time on day 8 post transplantation for event-free survival in patients who had had orthotopic liver transplants; both death and retransplantation within 6 months were the events considered. In a 4-year period, 109 patients had orthotopic liver transplants in our hospital, and 104 were eligible for the study since they survived and were not given new transplants within 8 days. The activated partial thromboplastin time was significantly longer in patients who survived event-free for less than 6 months than in those with longer event-free survivals. Kaplan-Meier curves showed that patients with normal activated partial thromboplastin times were nine times more likely to survive more than 6 months without events than patients with prolonged values. The positive predictive value of activated partial thromboplastin time for event-free survival was 88% and the negative predictive value was 54%, indicating that the test is useful for predicting patient outcome. We suggest that activated partial thromboplastin time be performed on day 8 post transplantation to predict the medium-term event-free survival.