ABSTRACT
Objective:To compare the differences of lung function parameters of the patients with congenital scoliosis (CS)or idiopathic scoliosis (IS),and to clarify their influence in respiratory function.Methods:Sixty-one patients of scoliosis undergoing operation were selected.According to the cause they were divided into 25 patients with CS and 36 patients with IS.The changes of lung function parameters and the differences in the patients with scoliosis were analyzed. Results:The ages,body weights, Cobb angles of the patients in two groups had no significant differences.There were 6 cases and 12 cases of ventilation disturbance in CS and IS groups,and 15 cases and 25 cases of ventilation dysfunction.The levels of residual volume (RV),ratio of residual volume to total lung capacity (RV/TLC),RV/TLC percent predicted (RV/TLC% pred )in two groups were higher than the normal. The percentage of forced vital capacity predicted (FVC%pred)and FEV1/FVC in CS group were both lower than those in IS group (P<0.05).Some pulmonary function parameters such as vital capacity (VC%pred),FVC%pred,forced expiratory volume in one second (FEV1%pred), maximal mid expiratory flow (MMEF%pred), maximal voluntary ventilation (MVV%pred),TLC%pred and diffusion capacity for carbon monoxide of the lung (DLCO%pred)were negtively correlated with Cobb angle (r=-0.54--0.35,P<0.05)in IS group and the TLC%pred was negtively correlated with Cobb angle (r=-0.047,P<0.05)in CS group.Conclusion:Different types of scoliosis have influence in the pulmonary function of the patients.The degree of pulmonary function injury of the patients with IS is worse than that of the CS patients.The IS patients need treatment in time.