Effects Of Perioperative External Diaphragm Pacing On Postoperative Pulmonary Function And Diaphragm Activity In Patients With Lung Cancer With Pulmonary Dysfunction

Objective:To explore the effect of perioperative external diaphragm pacing in postoperative rehabilitation of patients with lung cancer.Methods:40 patients with lung cancer who underwent thoracoscopic resection of lung lesions were randomly divided into experimental group(n=20)and control group(n=20).The control group followed the routine nursing of thoracic surgery,and the experimental group was treated with external diaphragm pacing on the basis of the control group.The postoperative pulmonary function,postoperative complications,indwelling time of closed thoracic drainage tube,postoperative hospital stay and postoperative diaphragm activity were compared.Results:Compared with the control group,the maximal expiratory volume in the first second(2.0 ±0.5 vs 1.6 ±0.6,P<0.05)and forced vital capacity(2.7 ±0.7 vs 2.4 ±0.5,P<0.05)were significantly higher in the experimental group.The incidence of postoperative pulmonary complications in the test group(1%vs 7%)was lower than that in the control group,and the difference was statistically significant;the indwelling time of closed thoracic drainage tube in the test group(2.9 ±0.4 vs 3.5 ± 1.1,P<0.05)was shorter than that in the control group,and the difference was statistically significant;the postoperative hospital stay in the test group(4.7 ±0.5 vs 5.6±1.2,P<0.05)was shorter than that in the control group.In the experimental group,the postoperative quiet breathing of the operated side diaphragm(1.3±0.4 vs.1.6±0.3),the deep breathing of the operative side(2.0±0.5 vs.2.4±0.4 vs.2.4),the non-operative side(0.2±0.2vs.0.4 ±0.2)and the non-operative side(0.3 ±0.4 vs.0.7±0.3).The decrease of postoperative range of motion in the control group was significantly lower than that in the control group(P<0.05).Compared with the control group.The decrease of diaphragm activity in the experimental group was significantly lower than that in the control group during calm breathing(1.3 ±0.4 vs.1.6±0.3),deep breathing(2.0±0.5 vs.2.4±0.4),non-operative quiet breathing(0.2±0.2vs.0.4±0.2)and non-operative deep breathing(0.3±0.4 vs.0.7±0.3).Conclusion:External diaphragm pacing can improve pulmonary function and diaphragm activity after pneumonectomy,reduce the occurrence of complications and shorten postoperative hospital stay.