Value Of Pulmonary Function In Predicting Postoperative Pulmonary Complications Of Nuss Thoracoplasty In Children With Pectus Excavatum

Objective: To explore the predictive value of pulmonary function on postoperation pulmonary complications(PPCs)of Nuss procedure in children with pectus excavatum,in order to provide some references for clinic.Method: retrieve a total of 3-18 years old children underwent Nuss operation from April 2014 to May 2020.Those patients were divided into PPCs group and Non-PPCs group according to whether the postoperative pulmonary complications occur or not.The preoperative pulmonary function indexes of the two groups were recorded,including the maximum vital capacity,forced vital capacity,forced expiratory volume in 1 second,1second rate and peak expiratory flow(all above were expressed as the percentage of measured value to the predicted value),meanwhile,counting the age、gender、operation time、hospitalization time、bleeding volume and Haller index of the two groups,statistical analysis was performed with T-test and logistic regression analysisResult: 295 children met the inclusion criteria,including 62 women,233 men,45 cases occurred PPCs,15.2% of the totle;compared with Non-PPCs group,partial pulmonary function indexes(vcmax%,FVC%,FEV1% and PEF%)of PPCs group were lower,the latter were younger,hospitalization time and operation time were longer,the difference was statistically significant(P < 0.05);logistic regression analysis showed that abnormal PEF% and FEV1% might be important risk factors for PPCs,after adjusted age and operation time.Conclusion: FEV1% and PEF% are significantly correlated with PPCs after Nuss operation of pectus excavatum,which can be used as a forecast index of PPCs.