Prediction of respiratory function after pneumonectomy of lung cancer
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概要
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Respiratory function after pneumonectomy was predicted in 34 patients with lung cancer, in whom bronchial obstruction by the tumor was demonstrated by bronchofiberscopy. The predictive formula used was F'=F × B/A (F' FVC or FEV<SUB>1.0</SUB>, after pneumonectomy, F : FVC or FEV<SUB>1.0</SUB> before operation, A : number of non obstructed subsegments of segments before operation, B number of subsegments of segments left after operation).<BR>With this method, the correlation between the predicted data and measured data one month after operation was very good (subsegment method ; FVC : r =0.883, FEV<SUB>1.0</SUB> : r =0.84, segment method ; FVC : r =0.867, FEV<SUB>1.0</SUB> : r = 0.828). The correlation between the predicted data using lung perfusion scan (n= 14) or lung inhalation scan (n= 6) and the measured data after operation was poor (lung perfusion scan ; FVC : r =0.585, FEV<SUB>1.0</SUB> : r =0.471, lung inhalation scan ; FVC r =0.738, FEV<SUB>1.0</SUB> r =0.777). Pneumonectomy causes considerable loss of respiratory function. The degree of loss can be predicted by bronchofiberscopy, which is usually performed in the diagnosis of lung cancer.
- 特定非営利活動法人 日本呼吸器外科学会の論文