RT Journal Article SR Electronic T1 Elevation of the Neutrophil-to-Lymphocyte Ratio Is a Significant Postoperative Poor Prognostic Factor in Patients With Clinical T3-4 Centrally Located Primary Lung Cancer JF Anticancer Research JO Anticancer Res FD International Institute of Anticancer Research SP 1631 OP 1636 DO 10.21873/anticanres.16313 VO 43 IS 4 A1 TSUKIOKA, TAKUMA A1 IZUMI, NOBUHIRO A1 KOMATSU, HIROAKI A1 INOUE, HIDETOSHI A1 ITO, RYUICHI A1 SUZUKI, SATOSHI A1 NISHIYAMA, NORITOSHI YR 2023 UL http://ar.iiarjournals.org/content/43/4/1631.abstract AB Background/Aim: In centrally located non-small cell lung cancer (CLNSCLC) surgery, large tumors and extension to neighboring structures prevent the attainment of adequate surgical fields and make operations more difficult, and some patients have extremely poor outcomes. This study aimed to identify novel postoperative prognostic factors in patients with advanced CLNSCLC. Patients and Methods: CLNSCLC was defined as a tumor requiring pneumonectomy or sleeve lobectomy for complete removal. We retrospectively investigated the clinical courses of 35 patients with cT3-4 CLNSCLC. Results: This study included 21 patients with cT3 and 14 with cT4 lung cancer. Nine patients underwent pneumonectomy and 26 underwent sleeve lobectomy. Univariate analysis revealed that a high neutrophil-to-lymphocyte ratio (NLR, p=0.005) and carcinoembryonic antigen (CEA) positivity (p=0.028) were significant poor prognostic factors. Only high NLR (p=0.020) was a significant independent predictor in multivariate analysis. Nine of 16 patients with high NLR (56%) experienced disease recurrence, whereas 6 of 19 patients without high NLR (32%) had recurrent disease. Conclusion: High NLR and CEA positivity were significant poor prognostic factors in patients with cT3-4 CLNSCLC, and only high NLR was an independent predictor. Our findings may be helpful in selecting optimal treatments for advanced CLNSCLC.