Prospective validation of right ventricular role in primary graft dysfunction after lung transplantation

Autor: Joaquim Gea, J. Serra, J F Rodriguez-Palomares, Oriol Roca, A. Zapatero, Purificación Pérez-Terán, Arturo Evangelista, Juan Carlos Ruiz-Rodríguez, Joan R. Masclans
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Zdroj: Recercat. Dipósit de la Recerca de Catalunya
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Popis: Primary graft dysfunction is a significant cause of lung transplant morbidity and mortality, but its underlying mechanisms are not completely understood. The aims of the present study were: 1) to confirm that right ventricular function is a risk factor for severe primary graft dysfunction; and 2) to propose a clinical model for predicting the development of severe primary graft dysfunction.A prospective cohort study was performed over 14 months. The primary outcome was development of primary graft dysfunction grade 3. An echocardiogram was performed immediately before transplantation, measuring conventional and speckle-tracking parameters. Pulmonary artery catheter data were also measured. A classification and regression tree was made to identify prognostic models for the development of severe graft dysfunction.70 lung transplant recipients were included. Patients who developed severe primary graft dysfunction had better right ventricular function, as estimated by cardiac index (3.5±0.8 versus 2.6±0.7 L·min−1·m−2, pversus −19.5±6.6%, pBetter right ventricular function is a risk factor for the development of severe primary graft dysfunction. Preoperative estimation of right ventricular function could allow early identification of recipients at increased risk, who would benefit the most from careful perioperative management in order to limit pulmonary overflow.
Databáze: OpenAIRE