Predictors and Early Outcome of Prolonged Mechanical Ventilation in Contemporary Heart valve Surgery

Mahmood Shirzad, Abbasali Karimi, Seyed Hossein Ahmadi, Mehrab Marzban, Mokhtar Tazik, Hermineh Aramin
2015 Monaldi Archives for Chest Disease  
During last decades mechanical ventilation has been an important support in the postoperative management of patients undergoing cardiac surgery. This study was designed to determine the predictors of prolonged mechanical ventilation (PMV) in patients undergoing heart valve surgery. Methods: This retrospective study considered of 1056 patients who underwent isolated valve surgery at Tehran Heart Center from March 2002 to March 2009. PMV is considered as mechanical ventilation period of ≥24 hours
more » ... period of ≥24 hours at postoperative hospital stay in this study. Results: PMV occurred in 6.6% of patients. Initial ventilation hours, atrial fibrillation, cardiac arrest and reintubation were the most prevalent postoperative complications. Preoperative renal failure, postoperative stroke, intra aortic balloon pump insertion, emergent operation, complete heart block, longer perfusion time were independent predictors of PMV in our patients. Conclusion: PMV is associated with significant comorbidities and increased hospital mortality. Strategies to delineate the patients at risk and to modify these risk factors by prophylactic measures should probably lead to a lower incidence of prolonged mechanical ventilation for patients undergoing isolated valve surgery.
doi:10.4081/monaldi.2010.276 pmid:20925175 fatcat:b34hhs7n3vcgpfwfelpk5r3g34