Chinese Journal of Clinical Anatomy ›› 2022, Vol. 40 ›› Issue (5): 610-614.doi: 10.13418/j.issn.1001-165x.2022.5.19

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Correlation between lung re-expansion and pulmonary function and its influencing factors  after lung cancer operation

Li Xinping1, Chen Yi1,2, Liu Shuangchun3, Zeng Bin1, Zhang Mingsheng1*   

  1. 1. Department of Physical Medicine and Rehabilitation, Guangdong Geriatric Institute, Guangdong Academy of Medical Sciences & Guangdong Provincial People’s Hospital, Guangzhou 510080, China;  2. Shenzhen Children’s Hospital, Shenzhen 518038, China; 3. HeXian Memorial Affiliated Hospital, Guangzhou 511400, China
  • Received:2021-09-02 Online:2022-09-25 Published:2022-10-13

Abstract: Objective   To analyze lung re-expansion and pulmonary function and their influencing factors by using quantitative CT and a spirometer.    Methods    A single-center retrospective study including post-operation patients with lung cancer was conducted. Quantitative CT was used to calculate the lung volume before operation and 3 months after operation. Respiratory function indicators including FVC, FEV1 and FEV1/FVC were estimated by a spirometer. The correlation between lung volume and pulmonary function was  analyzed. According to the pulmonary expansion indicator, the patients were divided into a non-distention group and hyperdistention group. The changes of lung volume and pulmonary function before and after operation were compared.    Results    A total of 40 patients were included in this study. Both lung volume and pulmonary function decreased after operation. The preoperative FVC (r=0.36, P=0.037) and FEV1 (r=0.35, P=0.041) were positively correlated with lung volume, and there was no significant correlation between FVC, FEV1 and lung volume at 3 months after operation (P>0.05). Compared with the non-distension group, the preoperative FEV1/FVC of patients in the hyperdistention group was lower, and the FEV1/FVC improved by about 5% at 3 months after operation. Univariate analysis revealed that smoking history was more common in the hyperdistention group (P=0.045).   Conclusions    Quantitative CT measurements combined with pulmonary function tests can be used to identify early postoperative lung hyperdistention morphology. Smoking history is a predictor of postoperative hyperdistention in patients with lung cancer. 

Key words: Quantitative CT; ,  , Lung volume; ,  , Pulmonary function; ,  , Lung expansion; ,  , Factors

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