Preoperative predictors for recurrence sites associated with poor post-recurrence survival after surgery of non-small cell lung cancer: a multicenter study

Author:

Isaka Tetsuya1,Adachi Hiroyuki1,Murakami Kotaro1,Miura Jun1,Kikunishi Noritake1,Shigeta Naoko1,Kudo Yujin2,Miyata Yoshihiro3,Okada Morihito3,Ikeda Norihiko2,Ito Hiroyuki1

Affiliation:

1. Kanagawa Cancer Center

2. Tokyo Medical University

3. Hiroshima University

Abstract

Abstract Background The recurrence site that influences post-recurrence survival (PRS) in patients with non-small cell lung cancer (NSCLC) undergoing surgery and the preoperative predictors of recurrence remain unclear. Methods Cohorts 1 and 2 had 4520 (who underwent complete resection for p-stage 0-IIIA NSCLC) and 727 (who experienced recurrence after surgery) patients, respectively. The initial sites of recurrence were the lungs (309 cases), thoracic lymph nodes (225 cases), pleura (112 cases), bone (110 cases), central nervous system (86 cases), abdomen (84 cases), cervical and axillary lymph nodes (38 cases), chest wall (13 cases), skin (5 cases), and eye and tongue (3 cases). For cohort 2 analysis, the initial recurrence site that resulted in poor PRS was analyzed by multivariable analysis using a Cox proportional hazard model. For cohort 1 analysis, the preoperative predictors of recurrence patterns with poor PRS were analyzed by multivariable analysis using a logistic regression model. Results In cohort 2 analysis, recurrence in the central nervous system (hazard ratio [HR], 1.59; p=0.003), bone (HR, 1.67; p<0.001), abdomen (HR, 1.79; p<0.001), and pleura (HR, 1.72; p<0.001) were independent poor prognostic recurrent sites for PRS and they were high-risk sites (HRS). Thoracic lymph nodes, cervical and axillary lymph nodes, lungs, chest wall, eye and tongue, and skin were low-risk sites (LRS) that did not affect PRS. Patients with multiple LRS without HRS recurrence had a worse prognosis than those with a single LRS without HRS recurrence (5-year PRS 19.5% vs. 37.0%, p=0.001) and were comparable to those with HRS recurrence (p=0.806). In cohort 1 analysis, preoperative predictors for HRS and multiple LRS recurrences were positron emission tomography (PET) maxSUV ≥ 3.0 (HR, 6.09; p<0.001), clinical stage ≥ II (HR, 2.36; p<0.001), and carcinoembryonic antigen (CEA) ≥ 5 ng/ml (HR, 1.46; p=0.001). The cumulative incidence rates of HRS and multiple LRS recurrences within 5 years were 46.7%, 26.6%, and 3.2% (p<0.001) in patients with 3, 1-2, and 0 of the above risks, respectively. Conclusions HRS and multiple LRS recurrences were vital recurrences associated with poor PRS. Preoperative PET maxSUV, CEA level, and clinical stage can predict the incidence of vital recurrence.

Publisher

Research Square Platform LLC

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