• Ernest G Chan, Patrick G Chan, Summer N Mazur, Daniel P Normolle, James D Luketich, Rodney J Landreneau, and Matthew J Schuchert.
• Division of Thoracic Surgery, Department of Cardiothoracic Surgery, University of Pittsburgh Medical Center, Pittsburgh, Pa.
• J. Thorac. Cardiovasc. Surg. 2021 May 1; 161 (5): 1639-1648.e2.

ObjectiveWe hypothesize that segmentectomy is associated with similar recurrence-free and overall survival when compared with lobectomy in the setting of patients with clinical T1cN0M0 non-small cell lung cancer (NSCLC; >2-3 cm), as defined by the American Joint Committee on Cancer 8th edition staging system.MethodsWe performed a single-institution retrospective study identifying patients undergoing segmentectomy (90) versus lobectomy (279) for T1c NSCLC from January 1, 2003, to December 31, 2016. Univariate, multivariable, and propensity score-weighted analyses were performed to analyze the following endpoints: freedom from recurrence, overall survival, and time to recurrence.ResultsPatients undergoing segmentectomy were older than patients undergoing lobectomy (71.5 vs 68.8, respectively, P = .02). There were no differences in incidence of major complications (12.4% vs 11.7%, P = .85), hospital length of stay (6.2 vs 7 days, P = .19), and mortality at 30 (1.1% vs 1.7%, P = 1) and 90 days (2.2% vs 2.3%, P = 1). In addition, there were no statistical differences in locoregional (12.2% vs 8.6%, P = .408), distant (11.1% vs 13.9%, P = .716), or overall recurrence (23.3% vs 22.5%, P = 1), as well as 5-year freedom from recurrence (68.6% vs 75.8%, P = .5) or 5-year survival (57.8% vs 61.0%, P = .9). Propensity score-matched analysis found no differences in overall survival (hazard ratio [HR], 1.034; P = .764), recurrence-free survival (HR, 1.168; P = .1391), or time to recurrence (HR, 1.053; P = .7462).ConclusionsIn the setting of clinical T1cN0M0 NSCLC, anatomic segmentectomy was not associated with significant differences in recurrence-free or overall survival at 5 years. Further prospective randomized trials are needed to corroborate the expansion of the role of anatomic segmentectomy to all American Joint Committee on Cancer 8th Edition Stage 1A NSCLC.Copyright © 2020. Published by Elsevier Inc.

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