Risk factors for reperfusion injury after lung transplantation

Cottini, Silvia R; Lerch, Nicolas; de Perrot, Marc; Treggiari, Miriam M; Spiliopoulos, Anastase; Nicod, Laurent; Ricou, Bara (2006). Risk factors for reperfusion injury after lung transplantation. Intensive care medicine, 32(4), pp. 557-63. Berlin: Springer 10.1007/s00134-006-0096-7

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OBJECTIVE: To assess the influence of recipient's and donor's factors as well as surgical events on the occurrence of reperfusion injury after lung transplantation. DESIGN AND SETTING: Retrospective study in the surgical intensive care unit (ICU) of a university hospital. METHODS: We collected data on 60 lung transplantation donor/recipient pairs from June 1993 to May 2001, and compared the demographic, peri- and postoperative variables of patients who experienced reperfusion injury (35%) and those who did not. RESULTS: The occurrence of high systolic pulmonary pressure immediately after transplantation and/or its persistence during the first 48[Symbol: see text]h after surgery was associated with reperfusion injury, independently of preoperative values. Reperfusion injury was associated with difficult hemostasis during transplantation (p[Symbol: see text]=[Symbol: see text]0.03). Patients with reperfusion injury were more likely to require the administration of catecholamine during the first 48[Symbol: see text]h after surgery (p[Symbol: see text]=[Symbol: see text]0.014). The extubation was delayed (p[Symbol: see text]=[Symbol: see text]0.03) and the relative odds of ICU mortality were significantly greater (OR 4.8, 95% CI: 1.06, 21.8) in patients with reperfusion injury. Our analysis confirmed that preexisting pulmonary hypertension increased the incidence of reperfusion injury (p[Symbol: see text]<[Symbol: see text]0.01). CONCLUSIONS: Difficulties in perioperative hemostasis were associated with reperfusion injury. Occurrence of reperfusion injury was associated with postoperative systolic pulmonary hypertension, longer mechanical ventilation and higher mortality. Whether early recognition and treatment of pulmonary hypertension during transplantation can prevent the occurrence of reperfusion injury needs to be investigated.

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