Clinical value of 3D-CTBA precise localization in patients undergoing thoracoscopic segmentectomy for early NSCLC
Objective To investigate the effect of three-dimensional computed tomography bronchography and angiography(3D-CTBA)precise localization on the improvement of carbohydrate antigen 125(CA125),carbohydrate antigen 724(CA724),carcinoembryonic antigen(CEA),and lung function in patients with thoracoscopic segmentectomy.Methods A total of 135 patients with early non-small cell lung cancer(NSCLC)who underwent thoracoscopic segmentectomy in Anyang Hospital of Traditional Chinese Medicine from August 2019 to August 2022 were prospectively selected and were divided into a control group(67 cases)and a study group(68 cases)by the random number table method.In the control group,there were 42 males and 25 females,aged(58.75±6.81)years,with a tumor diameter of(1.39±0.25)cm;in the study group,there were 41 males and 27 females,aged(58.22±6.35)years,with a tumor diameter of(1.36±0.31)cm.The control group underwent thoracoscopic segmentectomy,while the study group underwent 3D-CTBA precise localization before thoracoscopic segmentectomy.The operation-related indexes,serum tumor marker levels before and 7 days after surgery,changes in pulmonary function indexes before and 1 month after surgery,and incidence of complications were compared between the two groups.x2 test and independent sample t test were used.Results The operation time and thoracic drainage tube removal time[(115.77±7.96)min and(3.48±0.81)d]in the study group were shorter than those in the control group[(140.05±8.77)min and(4.52±0.74)d],the intraoperative blood loss and postoperative drainage volume were less than those in the control group[(129.83±11.65)ml vs.(150.02±10.23)ml,(541.23±41.78)ml vs.(720.22±56.66)ml],and the number of lymph nodes dissected was more than that in the control group[(11.86±2.44)vs.(9.26± 2.31)](all P<0.05).Seven days after surgery,the levels of CA125,CA724,and CEA in both groups were decreased compared with those before surgery,and those in the study group[(29.88±6.15)U/ml,(11.75±7.08)U/ml,and(15.55±5.67)μg/L]were lower than those in the control group[(36.78± 5.42)U/ml,(18.35±6.24)U/ml,and(21.22±6.45)μg/L](all P<0.05).One month after surgery,the forced vital capacity(FVC),forced expiratory volume in the first second(FEVJ,and peak expiratory flow(PEF)in both groups were decreased compared with those before surgery,and those in the study group[(2.95±0.58)L,(1.68±0.19)L,and(4.73±0.59)L/s]were higher than those in the control group[(2.72±0.65)L,(1.50±0.33)L,and(4.50±0.57)L/s](all P<0.05).The total incidence of complications in the study group was 10.29%(7/68),which was lower than that in the control group[29.85%(20/67)],with a statistically significant difference(x2=8.067,P=0.005).Conclusion The precise positioning of 3D-CTBA in patients undergoing thoracoscopic segmentectomy for early NSCLC can reduce the levels of serum tumor markers,reduce the impact on lung function,and have fewer complications and high surgical safety.