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Risk factors for pulmonary complications after neoadjuvant chemoradiotherapy followed by surgery for non-small cell lung cancer

 Ha Eun Kim  ;  Woo Sik Yu  ;  Chang Young Lee  ;  Jin Gu Lee  ;  Dae Joon Kim  ;  Seong Yong Park 
 THORACIC CANCER, Vol.13(3) : 361-368, 2022-02 
Journal Title
Issue Date
Aged ; Carcinoma, Non-Small-Cell Lung* / complications ; Carcinoma, Non-Small-Cell Lung* / surgery ; Chemoradiotherapy / adverse effects ; Female ; Humans ; Lung Neoplasms* / complications ; Lung Neoplasms* / surgery ; Male ; Middle Aged ; Neoadjuvant Therapy / adverse effects ; Postoperative Complications / epidemiology ; Postoperative Complications / etiology ; Retrospective Studies ; Risk Factors
chemoradiotherapy ; neoadjuvant therapy ; nomogram ; non-small cell lung carcinoma
Background: We aimed to investigate the characteristics and pretreatment risk factors for postoperative pulmonary complications (PPCs) after neoadjuvant concurrent chemoradiotherapy (CRTx) in patients with non-small cell lung cancer (NSCLC).

Methods: We retrospectively reviewed data of 122 patients who underwent curative resection after neoadjuvant CRTx for NSCLC between 2007 and December 2019. Clinical data, including pulmonary function and body mass index (BMI) at the time of concurrent CRTx initiation, were analyzed. We performed logistic regression analyses to identify the risk factors for PPCs and built a nomogram with significant factors.

Results: Of the 122 patients included (mean age, 60.1 ± 9.7 years; 69.7% male), 27 experienced PPCs (severity grade ≥ 2). The most common PPCs were pneumonia (n = 17). Patients with PPCs had a significantly longer hospital stay (median 6.0 vs. 17 days, p < 0.001) and a higher in-hospital mortality rate (1.1% vs. 29.6%, p < 0.001). In multivariable analysis, lower BMI (odds ratio [OR] 0.796, 95% confidence interval [CI] 0.628-0.987, p = 0.038), no comorbidity (OR 0.220, 95% CI: 0.059-0.819, p = 0.048), smoking history (OR 4.362, 95% CI: 1.210-15.720, p = 0.024), and %predicted DLCO <60% (OR 3.727, 95% CI: 1.319-10.530, p = 0.013) were independent risk factors for PPCs. The predictive accuracy of the nomogram built with factors was excellent (concordance index: 0.756).

Conclusions: The nomogram constructed with factors identified in multivariable analysis could serve as a reliable tool for evaluating the risk of PPCs in the patients who underwent neoadjuvant CRTx for NSCLC.
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1. College of Medicine (의과대학) > Dept. of Thoracic and Cardiovascular Surgery (흉부외과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Dae Joon(김대준)
Kim, Ha Eun(김하은)
Park, Seong Yong(박성용) ORCID logo https://orcid.org/0000-0002-5180-3853
Lee, Jin Gu(이진구)
Lee, Chang Young(이창영)
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