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目的探讨肺癌术前计算预计术后１ｓ用力呼气容积（ＰＰＯ－ＦＥＶ１）预测手术风险的标准。方法应用Ｊｕｈｌ公式计算３８３例患者的ＰＰＯ－ＦＥＶ１，按手术方式将全部患者分为肺叶切除组（肺叶组）和全肺切除组（全肺组），研究ＰＰＯ－ＦＥＶ１与并发症的关系。结果当ＰＰＯ－ＦＥＶ１＞１．０Ｌ时，并发症低；当ＰＰＯ－ＦＥＶ１在０．８～１．０Ｌ时，两组的并发症均显著上升（Ｐ＜０．００１）；当ＰＰＯ－ＦＥＶ１＜０．８Ｌ时，全肺组的病死率显著升高（Ｐ＜０．０５）。结论肺癌术前ＰＰＯ－ＦＥＶ１的评估标准为：＞１．０Ｌ时，肺切除术是安全的；在０．８～１．０Ｌ时，属高危病人，＜０．８Ｌ时，全肺切除需慎重
Objective To investigate the predictive criteria for predicting the surgical risk by predicting the postoperative 1s forced expiratory volume (PPO-FEV1) after lung cancer preoperative calculation. Methods The Juley formula was used to calculate PPO-FEV1 in 383 patients. All patients were divided into lobectomy group (lung group) and pneumonectomy group (whole lung group) according to the surgical method to study the relationship between PPO-FEV1 and complications. Results When PPO-FEV1>1.0L, the complications were low; when PPO-FEV1 was 0.8-1.0L, the complications of both groups increased significantly (P<0.001); when PPO-FEV1< At 0.8 L, the mortality in the whole lung group was significantly increased (P < 0.05). Conclusion PPO-FEV1 preoperative evaluation criteria for lung cancer are:>1.0L, lung resection is safe; 0.8～1.0L is a high-risk patient, <0.8L, pneumonectomy should be careful