Abstract
Introduction: This prospective study aimed to evaluate the functional status and risk factors in patients undergoing lung resection.Methods: Functional status defined by the parameters of spirometry (VC, FVC, FEV1, FEV1/FVC) and whole-body plethysmography (TLC) examination was assessed before lung resection, at hospital discharge, 3 weeks after surgery, and 3 months after surgery.Results: The sample comprised 24 participants who were observed from 5/2021 to 10/2022. The functional status worsened significantly after the surgery, but the lung function values improved over time.Conclusions: Lung functions dropped sharply after the surgery but improved over time.

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