Related Experiment Video
Updated: Dec 27, 2025
Subcostal Specimen Removal in Completely Portal Robotic Lobectomy
Published on: April 19, 2024
Oncologic outcomes of segmentectomy vs lobectomy in pathologic stage IA (≤2 cm) invasive lung adenocarcinoma: A
Feng Li1, Yue Zhao1, Ligong Yuan1
1Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Background And Objectives:
For early-stage invasive lung adenocarcinoma, it remains unclear whether segmentectomy can yield outcomes equivalent to those of lobectomy. This study aimed to compare survival outcomes after segmentectomy and lobectomy among patients with stage IA invasive lung adenocarcinoma.
Methods:
We identified patients with stage IA (≤2 cm) invasive lung adenocarcinoma who underwent segmentectomy or lobectomy from the Surveillance, Epidemiology, and End Results database (2004-2015). Propensity score matching (PSM) was used to balance the baseline characteristics. Overall survival (OS) and lung cancer-specific survival (LCSS) were compared using the Kaplan-Meier method and Cox proportional hazards regression.
Results:
A total of 5474 patients were included. Before PSM, the 5-year OS was 78.3% for patients undergoing lobectomy vs 76.5% for patients undergoing segmentectomy (P = .166) while LCSS were 86.8% vs 83.0% (P = .015). After PSM, survival analyses showed that segmentectomy had OS (75.8% vs 76.4%; P = .694) and LCSS (82.7% vs 82.9%; P = .604) equivalent to those of lobectomy. Cox regression demonstrated that segmentectomy was equivalent to lobectomy in terms of OS and LCSS before and after PSM.
Conclusion:
For stage IA (≤2 cm) invasive lung adenocarcinoma, segmentectomy may have oncologic outcomes equivalent to those of lobectomy.
