Abstract
Purpose
To establish the factors associated with compensatory lung growth (CLG) in human adults.
Methods
The subjects of this study were 216 patients who underwent pulmonary lobectomy between January 2008 and March 2015 and had computed tomography (CT) scans done before and 2 years after surgery with no signs of recurrence. The predicted postoperative values of lung volume and lung weight, based on the preoperative CT data, were compared with those 2 years after surgery.
Results
When the predicted postoperative values were considered to be 100%, the mean lung volume and lung weight 2 years after surgery were 116 ± 16% and 115 ± 19%, respectively. CLG was defined as both lung volume ≥ 110% and lung weight ≥ 106% (CLG group; n = 108). Both univariate and multivariate analyses showed that younger age (≤ 60 years), a larger number of resected subsegments (≥ 10), and a light- (< 20 pack-years) or non-smoking history were significantly associated with CLG.
Conclusions
This study identified younger age, a light- or non-smoking history, and a large resection volume as the predictors of CLG in patients who underwent pulmonary lobectomy for lung malignancy. All of these three factors may be reasonably connected to CLG.
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Wakamatsu, I., Matsuguma, H., Nakahara, R. et al. Factors associated with compensatory lung growth after pulmonary lobectomy for lung malignancy: an analysis of lung weight and lung volume changes based on computed tomography findings. Surg Today 50, 144–152 (2020). https://doi.org/10.1007/s00595-019-01863-0
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DOI: https://doi.org/10.1007/s00595-019-01863-0