Clinical impact of lung age on postoperative readmission in non–small cell lung cancer

Abstract Background Recently, the Japanese Respiratory Society (JRS) proposed using lung age (LA) as an indicator of lung function; however, reports regarding the association of LA with the risk of postoperative readmission within 90 d after surgical treatment for non–small cell lung cancer (NSCLC)...

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Bibliographic Details
Published in:The Journal of surgical research 2015, Vol.193 (1), p.442-448
Main Authors: Ogawa, Fumihiro, MD, PhD, Satoh, Yukitoshi, MD, PhD, Iyoda, Akira, MD, PhD, Amano, Hideki, MD, PhD, Kumagai, Yuji, MD, PhD, Majima, Masataka, MD, PhD
Format: Article
Language:English
Subjects:
Aged
Aged, 80 and over
Carcinoma, Non-Small-Cell Lung - mortality
Carcinoma, Non-Small-Cell Lung - surgery
Comorbidity
Female
Humans
Logistic Models
Lung age
Lung Neoplasms - mortality
Lung Neoplasms - surgery
Male
Middle Aged
Non–small cell lung cancer
Patient Readmission - statistics & numerical data
Postoperative complications
Postoperative Complications - mortality
Predictive Value of Tests
Readmission
Respiratory Function Tests
Retrospective Studies
Risk Factors
Surgery
Surgical resection
Survival Rate
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Summary:Abstract Background Recently, the Japanese Respiratory Society (JRS) proposed using lung age (LA) as an indicator of lung function; however, reports regarding the association of LA with the risk of postoperative readmission within 90 d after surgical treatment for non–small cell lung cancer (NSCLC) are limited. Here, we analyze the clinical relationship between LA and readmission within 90 d after surgical treatment for NSCLC. Methods A total of 979 patients underwent curative resections for NSCLC from January 2000–September 2012 at the Kitasato University Hospital. We selected patients who required readmission because of surgical complications within 90 d of surgery and retrospectively analyzed various clinical data. LA was calculated based on the formula given by the Japanese Respiratory Society, which relies on preoperative respiratory function. We also calculated the age gap (AG) between the calculated LA and the true age (TA). Results There were 216 patients who needed to be readmitted within 90 d of surgery, 33 (3%) of whom were hospitalized for surgical complications. Twenty-four patients (73%) had respiratory complications, and 7 patients (21%) died. There were significant differences between the readmitted and no readmitted patients in terms of preoperative factors, such as gender, LA, AG, smoking status, and smoking index ( P  
ISSN:0022-4804
1095-8673
DOI:10.1016/j.jss.2014.08.028