Effect of combination of pre- and postoperative pulmonary rehabilitation on onset of postoperative pneumonia: a retrospective cohort study based on data from the diagnosis procedure combination database in Japan
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To examine the effect of rehabilitation on postoperative pulmonary complication when it is conducted in combination of both before and after lung cancer surgery, as compared with either before or after surgery and no rehabilitation.
A retrospective cohort study was conducted to examine the effect of rehabilitation before and after lung cancer surgery on the causes of postoperative pneumonia. Data were collected from the diagnosis procedure combination (DPC) database. Patients admitted who received operative treatment for a new primary (ICD codes: C34) were selected. The inclusion criteria were patients who had pneumonectomy, malignant tumor surgery for the lung (thoracotomy), or thoracoscopic surgery (endoscopic; treatment code: K511-00, K513-00~03, and K514-00, 02). The exclusion criteria were patients who had a lung transplantation (treatment code: K514-03~06), suspected diagnosis, and a pneumonia within 3 months before being diagnosed as having lung cancer. Main outcome was onset of postoperative pneumonia.
Among 76,739 lung cancer patients, 15,146 who underwent lung cancer surgery were included in the analysis. In the combination of pre- and postoperative group, as compared with the preoperative [odds ratio (OR), 95% confidence interval (CI) 2.8, 1.8–4.4], postoperative (1.9, 1.6–2.3), and no rehabilitation group (2.5, 2.1–2.8), the onset of pneumonia was less frequent.
Combination of preoperative and postoperative rehabilitations significantly prevents postoperative pneumonia as compared with having preoperative, postoperative, or no rehabilitation.
KeywordsCancer rehabilitation Postoperative complication Lung cancer
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
Compliance with ethical standards
Conflict of interest
There are no companies in COI relationship that should be disclosed.
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