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The Optimal Time of High-Intensity Pre-rehabilitation for Surgical Lung Cancer Patients: A Retrospective Cohort Study
Yutian Lai1,2, Yingxian Dong1,2, Long Tian1,2
1Department of Thoracic Surgery, West China Hospital, Sichuan University, Chengdu, People's Republic of China.
Background:
The aim of this study was to investigate the influence of the time of pre-rehabilitation (PR) combined with respiratory training and aerobic exercise on surgical patients with lung cancer.
Patients And Methods:
A retrospective study from a 5-year database of a single center, including patients with lung cancer who underwent surgery between 1 January 2016 and 31 December 2020, was conducted. The patients were divided into the PR group, in which they received the PR regimen, and the non-PR group, in which they received routine care.
Results:
A total of 4452 patients were retrospectively included, 684 of whom received PR regimen. A lower postoperative pulmonary complication (PPC) rate was observed in PR group than in non-PR group before or after propensity score matching (PSM) (before: 12.6% vs 18.5%, P < 0.001; after: 12.6% vs 18.7%, P < 0.001). For the PR group, a restricted cubic spline model revealed a significant nonlinear dose‒response association between PR time and the occurrence of PPCs (P for nonlinearity = 0.002). The PR time associated with the lowest occurrence of PPCs was 7 days, and the odds ratio (OR) of PPCs decreased steeply, with an OR of 0.8 [95% confidence interval (CI) 0.66-0.97] per day until 7 days, and then remained stable with a slight increase afterward with an OR of 1.11 (95% CI 0.99-1.25) per day.
Conclusion:
The study validated the effectiveness of a pre-rehabilitation regimen for decreasing the occurrence of PPCs. A U-shaped nonlinear relationship was found between pre-rehabilitation time and the PPC rate, indicating that both excessive and insufficient pre-rehabilitation time may increase the incidence of PPCs. Registry Number: ChiCTR1800020097.
