Survival following resection for second and third primary lung cancers

Area of Science:

• Thoracic Surgery
• Surgical Oncology
• Pulmonology

Background:

• The management of multiple primary lung cancers, including sequential resections, presents ongoing clinical debate.
• Defining new primary lung cancer lesions requires specific criteria, such as distinct histology, prolonged intervals, and anatomical separation.

Purpose of the Study:

• To evaluate the outcomes and survival rates of patients undergoing multiple resections for primary lung cancers.
• To assess the safety and efficacy of aggressive surgical management for synchronous and metachronous lung tumors.

Main Methods:

• Retrospective review of 90 patients who underwent multiple resections for bronchogenic carcinoma between 1960 and 1983.
• Analysis of surgical procedures (pneumonectomy, lobectomy, segmentectomy, etc.) at initial, second, and third resections.
• Evaluation of histologic type changes, time intervals between procedures, and perioperative mortality.

Main Results:

• Eighty patients had metachronous lesions, with a maximum interval of over 17 years between resections.
• A different cell type was identified in 20 patients at second resection and three at third resection.
• Perioperative mortality for the second operation was 8% (7/90), with no deaths for third resections.
• Cumulative survival after second resection for metachronous tumors was 33% at 5 years and 20% at 10 years.

Conclusions:

• The findings support an aggressive surgical strategy for managing second and third primary lung cancers.
• Sequential resections can achieve significant long-term survival in selected patients with multiple primary lung cancers.