Evaluating Changes in Exercise Tolerance Post Lung Resection: the Utility of the 1 Minute Sit to Stand Test
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Introduction: Lung resection surgery is essential in the treatment of various diseases, including lung cancer, but it can lead to reduced exercise tolerance and dyspnea. This study aims to analyze the 1-minute sit-to-stand test (STST1m) as an indicator of changes in physical exercise tolerance and its clinical implications for dyspnea following elective lung resection surgery.
Methodology: A retrospective cohort analytical study was conducted involving 39 patients who underwent elective resection surgery at Hospital San Juan de Dios between December 2023 and August 2024. Demographic, clinical data, and STST1m results were collected before and after surgery. Differences were analyzed using statistical tests, linear and logistic regressions.
Results: The median repetitions in STST1m decreased significantly from 32 to 25 (p<0.0001). A total of 51.29% of patients experienced significant postoperative dyspnea (mMRC ≥2). Regression analysis showed that the decrease in STST1m was positively correlated with increased dyspnea (p<0.001), with a decline of more than 6 repetitions associated with clinical worsening.
Conclusion: The results of this study suggest that STST1m is a useful tool for monitoring exercise tolerance in patients undergoing lung resection. In this population, a decrease of 6 or more repetitions between the preoperative and postoperative periods is significantly correlated with an increase in exertional dyspnea. These findings emphasize the need to consider non-pharmacological therapies, such as pulmonary rehabilitation (PR), to alleviate symptoms in early postoperative management.
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