• Jiangpeng Wei, Ying Zhang, Pengfei Yu, Xiuqin Li, Xiangying Feng, Shisen Li, Gang Ji, and Xiaohua Li.
• Department of Radiotherapy, Xijing Hospital.
• Medicine (Baltimore). 2021 May 21; 100 (20): e25793e25793.

AbstractPreoperative pulmonary function assessment is applied to select surgical candidates and predict the occurrence of postoperative complications. This present study enrolled 2323 colorectal cancer patients. Forced vital capacity (FVC) and maximal voluntary ventilation (MVV) were measured as predicted values. Associations between patient pulmonary function and both prognosis and postoperative complications was analyzed. The value of FVC and MVV optimal cutoff was 98.1 (P < .001) and 92.5 (P < .001), respectively. Low FVC and low MVV were associated with higher rates of postoperative fever (23.8% vs 13.9%, P < .001; 17.8% vs 13.3%, P = .049, respectively) and with higher rates of pneumonia (3.75% vs 1.73%, P = .002; 3.00% vs 1.71%, P = .009, respectively), pleural effusion (3.00% vs 1.57%, P = .033; 3.18% vs 1.42%, P = .006, respectively), and poor patient prognosis (5-year overall survival: 80.0% vs 90.3%, P < .001; 71.7% vs 91.9%, P < .001, respectively). In addition, low FVC was closely related to the higher rate of anastomosis leak (4.31% vs 2.29%, P = .013), low MVV was correlated with the higher rate of uroschesis (2.38% vs 0.65%, P < .001). In subgroup analyses, the predictive value of FVC and MVV in patients with different tumor stage was analyzed. Both low FVC and MVV were independent risk factors for poor prognosis in stage II and III, indicating that low FVC and MVV are predictive of poorer prognosis and higher risk of postoperative complications in colorectal cancer patients.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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