Pulmonary Resection for Second Lung Cancer After Pneumonectomy: A Population-Based Study

Area of Science:

• Thoracic Surgery
• Surgical Oncology
• Pulmonary Medicine

Background:

• Pulmonary resection for a second lung cancer post-pneumonectomy is considered high-risk.
• This study investigates treatment and survival in such patients.

Purpose of the Study:

• To analyze treatment patterns and survival outcomes for patients undergoing pulmonary resection after a pneumonectomy for lung cancer.
• To identify factors influencing surgical resection and compare survival between different resection types.

Main Methods:

• Utilized the Surveillance, Epidemiology, and End Results (SEER) database (1988-2012).
• Identified patients with pneumonectomy followed by contralateral non-small cell lung cancer (NSCLC).
• Employed multivariate logistic regression and Kaplan-Meier survival analysis.

Main Results:

• 3.0% of 13,370 pneumonectomy patients developed subsequent contralateral NSCLC; 42% met selection criteria.
• Surgical resection (37.1%) was more common for stage I/II disease and tumors ≤2 cm.
• Sublobar resection showed higher median overall survival (42 months) than lobectomy (18 months).
• 1-year and 3-year survival rates after resection were 79% and 54%, respectively.

Conclusions:

• Sublobar resection is a viable option for selected patients with small (≤2 cm), early-stage (I/II) contralateral NSCLC after pneumonectomy.
• While perioperative mortality is notable, favorable long-term survival justifies considering this procedure on a single lung.