《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2022, Vol. 28 ›› Issue (2): 242-248.doi: 10.3969/j.issn.1006-9771.2022.02.016

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Application of six-minute walk test in preoperative evaluation of patients undergoing pulmonary lobectomy

WANG Longping1a,YANG Xuening1b,ZENG Bin1a,XU Guangqing1a()   

  1. 1. a. Department of Physical Therapy and Rehabilitation; b. Department of Lung Surgery, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou, Guangdong 510080, China
  • Received:2021-09-03 Revised:2021-11-09 Published:2022-02-25 Online:2022-03-09
  • Contact: XU Guangqing E-mail:guangchingx@163.com

Abstract:

Objective To analyze the feasibility of six-minute walk test (6MWT) before pulmonary lobectomy and prediction for postoperative outcome. Methods A total of 580 patients who were hospitalized in the department of lung surgery from May, 2017 to May, 2019 were reviewed, and 274 eligible patients were selected, who underwent first surgery and the surgical method was pulmonary lobectomy. They were divided into two groups based on the results of 6MWT before operation. The cut-off value of six-minute walk distance (6MWD) was obtained by receiver operating characteristic curve (ROC) area under curve (AUC). The postoperative outcome and the occurrence of cardiopulmonary complications in the two groups were analyzed. Results Compared to patients with 6MWD > 449 meters, the age was significantly older (P < 0.001), the forced expiratory volume in the first second (FEV1) was poor in patients with 6MWD ≤ 449 meters (P < 0.05), and other factors such as surgical resection site, pathological stage, gender, etc., were not significantly different (P > 0.05). The incidence of postoperative cardiopulmonary complications was significantly higher (OR = 2.672, 95%CI 1.488 to 4.798, P = 0.002), and the postoperative extubation time and hospital stay was longer in patients with 6MWD ≤ 449 meters than in patients with 6MWD > 449 meters (P < 0.05). 6MWD ≤ 449 meters was an independent risk factor for postoperative cardiopulmonary complications (OR = 2.395, 95%CI 1.299 to 4.415, P = 0.005). Conclusion As a simple function test, 6MWT can be routinely used to assess the physiological function of patients undergoing pulmonary lobectomy. Patients with 6MWD ≤ 449 meters may be in higher risks of postoperative cardiopulmonary complications.

Key words: six-minute walk test, pulmonary lobectomy, preoperative evaluation

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