Sublobar resection for early-stage lung cancer

Area of Science:

• Thoracic Surgery
• Surgical Oncology
• Pulmonology

Background:

• Lobectomy has been the standard surgical treatment for stage I non-small cell lung cancer (NSCLC) since 1995.
• Sublobar resection was traditionally reserved for high-risk patients unsuitable for lobectomy.
• Advances in imaging have led to earlier NSCLC detection, including small tumors and ground-glass opacity (GGO) lesions.

Purpose of the Study:

• To evaluate the oncological outcomes of sublobar resection compared to lobectomy for early-stage NSCLC.
• To assess the potential of sublobar resection as a primary treatment option for select NSCLC patients.
• To investigate the adequacy of sublobar resection for small or GGO-dominant NSCLC.

Main Methods:

• Review of prospective randomized trials and existing evidence.
• Analysis of outcomes for sublobar resection versus lobectomy in early-stage NSCLC.
• Focus on tumor size (≤2 cm) and radiographic characteristics (GGO).

Main Results:

• Evidence suggests sublobar resection can achieve comparable oncological outcomes to lobectomy for early-stage NSCLC, particularly for tumors ≤2 cm.
• Increased use of sublobar resection in good-risk patients is observed due to refined diagnostic capabilities.
• The efficacy for GGO-dominant lesions is still under prospective investigation.

Conclusions:

• Sublobar resection shows promise as an alternative to lobectomy for small stage IA NSCLC.
• Potential anatomical and functional advantages exist with sublobar resection.
• Further prospective studies are needed to solidify sublobar resection's role in managing early NSCLC, especially GGO-dominant lesions.