Does aggressive respiratory rehabilitation after primary nuss procedure improve pulmonary function?

Abstract

ObjectiveHere, we present the efficacy of an aggressive respiratory rehabilitation program that was initiated from early postoperative period, expecting to improve inspiratory volume at an early stage after primary Nuss procedure. MethodsThe study was performed as a nonrandomized controlled study undergoing primary Nuss procedure at our institute from 2016 to 2018. We evaluated 34 patients and assigned them to two groups based on whether or not they received a respiratory rehabilitation. Group A (between June 2016 and March 2018) includes patients with inspiratory training postoperatively, and group B (between April 2018 and July 2018) includes patients without training. At the time of admission, a physiatrist provided each patient with a training instruction. From day five postoperatively, the patients in group A started training for inspiration with an incentive spirometer (Coach 2®PORTEX) four times a day.Patients were instructed to perform the same training at home after discharge. Using this device, we measured pre- and postoperative inspired volumes in each group. Data were analyzed with Wilcoxon–Mann–Whitney tests and a paired Student t-test. A p-value below 0.05 was considered statistically significant. ResultsThere were no statistically significant differences between the two groups concerning both operative age and the degree of the deformity calculated by Haller index. Preoperative inspiratory volume showed no significant differences. Although there were no statistical differences between two groups in the inspiratory volume at discharge, these two parameters were significantly higher in group A after three months postoperatively (A: 1404 ± 466 ml vs B: 900 ± 314 ml) and the values increased compared to the preoperative stage in group A. ConclusionsThese data indicate the aggressive respiratory rehabilitation is an effective regimen to increase inspiratory volume at an early stage after Nuss procedure. Level of evidenceIII.