Lobectomy Versus Segmentectomy in Radiologically Pure Solid Small-Sized Non-Small Cell Lung Cancer

The Annals of Thoracic Surgery
Terumoto KoikeMasanori Tsuchida

Abstract

The indication for limited resection of radiologically pure solid non-small cell lung cancer (NSCLC) is controversial owing to its invasive pathologic characteristics. This study was performed to compare the outcomes after lobectomy and segmentectomy in these NSCLC patients. We retrospectively reviewed 251 patients with radiologically pure solid cT1a N0 M0 NSCLC who underwent lobectomy or segmentectomy, and the preoperative characteristics of the patients treated with the two operative techniques were matched using propensity score methods. Overall survival (OS) and disease-free survival (DFS) curves were compared using the log rank test, and differences in survival were also evaluated by the McNemar test. The preoperative factors and surgical procedure were analyzed with the multivariate Cox proportional hazards regression model to identify independent predictors of poor OS and DFS. In the propensity score matched lobectomy and segmentectomy groups (87 patients per group), the 5-year and 10-year OS rates were 85% versus 84% and 66% versus 63%, respectively; and the 5-year and 10-year DFS rates were 80% versus 77% and 64% versus 58%, respectively. There were no significant differences between the two groups in OS or DFS by the ...Continue Reading

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