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J Thorac Cardiovasc Surg ; 109(1): 49-57; discussion 57-9, 1995 Jan.
Article in English | MEDLINE | ID: mdl-7815807

ABSTRACT

Infection and rejection remain the greatest threats to the survival of pulmonary allograft recipients. Furthermore, a relationship may exist between these events, because the occurrence of one may predispose to the other. By using multivariate analysis for repeated events, we analyzed the risk factors for bacterial, fungal, and viral infection, grade II or greater acute rejection, and death among 239 lung transplant recipients who received 250 allografts between January 1988 and September 1993. A total of 90 deaths, 491 episodes of acute rejection, and 542 infectious episodes occurred during a follow-up of 6 to 71 months. The hazard or risk patterns of death, infection, and rejection each followed an extremely high risk during the first 100 days after transplantation, a second modest risk period at 800 to 1200 days, and a lower constant risk. Infection and graft failure manifested by diffuse alveolar damage were the major causes of early death (< 100 days), whereas infection and chronic rejection were primary causes of later death after pulmonary transplantation. By multivariate analysis, cytomegalovirus mismatching risk for primary infection was the most significant risk factor for death, rejection, and infection. Absence of cytomegalovirus prophylaxis was also a risk factor for early and late death and late infection. Survival of recipients who received cytomegalovirus prophylaxis was significantly improved. Immunosuppression based on cyclosporine versus FK 506 was a risk factor for late death and late infection. Graft failure manifested by diffuse alveolar damage/adult respiratory distress syndrome was a significant risk for death late after transplantation. These data suggest the following: (1) The hazard for death, infection, and rejection after pulmonary transplantation appears biphasic; (2) lower survival is associated with ischemia-reperfusion lung injury represented by diffuse alveolar damage/adult respiratory distress syndrome; (3) cytomegalovirus mismatch, absence of cytomegalovirus prophylaxis, and development of cytomegalovirus disease are significant threats for death, rejection, and infection after pulmonary transplantation; (4) prevention of cytomegalovirus disease should improve survival by decreasing the prevalence of infection and rejection.


Subject(s)
Graft Rejection , Lung Diseases/microbiology , Lung Transplantation/mortality , Adolescent , Adult , Aged , Anti-Bacterial Agents/therapeutic use , Bronchiolitis Obliterans/etiology , Child , Child, Preschool , Cytomegalovirus Infections/etiology , Cytomegalovirus Infections/mortality , Cytomegalovirus Infections/prevention & control , Female , Humans , Immunosuppression Therapy , Infant , Lung Diseases/prevention & control , Lung Diseases/virology , Lung Transplantation/adverse effects , Lung Transplantation/immunology , Male , Middle Aged , Multivariate Analysis , Premedication , Retrospective Studies , Risk Factors , Survival Rate , Time Factors
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