Abstract:Objective To explore the value of bronchoalveolar lavage during cardiopulmonary bypass (CPB) surgery for congenital heart defect(CHD) in infants. Methods Bronchoalveolar lavage during CPB surgery was performed in 6 infants with left-to-right shunt CHD from November 2016 to October 2017, who had pneumonia combined with heart failure before operation and received sub-emergency surgery with tracheal intubation of equal or more than 4. 0 mm diameter because there was no improvement or further aggravation following improvement after striving heart, diuresis and anti infection treatment. The infants ages ranged from 6 to 19 (11±4.7) months, and their weighs ranged from 5.5 to 8.5 (7.0±1.1) kg. After CPB was established, bronchoscopy and bronchoalveolar lavage were performed through the endotracheal tube. Results All the infants were cured and discharged. Ventilator-assisted ventilation time was 1-4.5 (2.4±1.2) days, and ICU residence time was 3-7 (4.5±1.5) days. Clinical pulmonary infection score(CPIS) reduced to below 6 at postoperative 1-6 (3.6±1.9) days; WBC count and procalcitonin(PCT) recovered to normal range at postoperative 2-6(4.2±1.5) days and postoperative 2-7 (4.3±1.8) days. There were 1 case of atelectasis and 1 case of intratracheal hemorrhage after operation. Conclusions Bronchoalveolar lavage during CPB surgery can ameliorate postoperative pulmonary function, reduce mechanical ventilation time and ICU residence time for CHD infants.