Prognostic implications of a positive bronchial resection margin.

Area of Science:

• Thoracic Surgery
• Surgical Oncology
• Pulmonary Medicine

Background:

• A microscopically positive bronchial resection margin after lung cancer surgery indicates residual disease.
• This situation poses challenges for patient prognosis and treatment strategies.

Purpose of the Study:

• To evaluate survival rates and recurrence patterns in patients with positive bronchial resection margins.
• To assess the impact of adjuvant radiotherapy on survival in these patients.

Main Methods:

• Retrospective analysis of 40 patients with positive bronchial resection margins following lung cancer resection.
• Data collected on tumor type, lymph node status, margin involvement, and radiotherapy administration.
• Survival and recurrence data analyzed using Kaplan-Meier methods.

Main Results:

• 60% of patients experienced disease recurrence, with 47.5% showing progression of initial disease.
• 5-year survival for patients with carcinoma in situ was 38.7%, improving to 55% when excluding radiotherapy-related deaths.
• Peribronchial infiltration correlated with a poor prognosis, similar to N2 lymph node disease.

Conclusions:

• Peribronchial infiltration at the bronchial margin carries a prognosis similar to N2 disease.
• While radiotherapy may aid local disease control, it is associated with a significant rate of late, unrelated deaths.
• In situ carcinoma at the margin does not appear to independently affect survival.