Wedge Resection for Early-Stage Non-Small Cell Lung Cancer: Are We There Yet?

Area of Science:

• Thoracic Surgery
• Surgical Oncology
• Pulmonary Medicine

Background:

• Lobectomy is the traditional standard for early-stage non-small cell lung cancer (NSCLC).
• Sublobar resections, including segmentectomy and wedge resection, are increasingly considered.
• Evidence comparing sublobar resections to lobectomy is evolving.

Purpose of the Study:

• To review and compare evidence for wedge resection versus segmentectomy in early-stage NSCLC.
• To contextualize sublobar resections against lobectomy as the benchmark.
• To evaluate the oncologic adequacy of wedge resection for NSCLC.

Main Methods:

• Comprehensive literature review of studies over the last 30 years.
• Focused on outcomes of lobar and sublobar lung resections for stage I NSCLC.
• Synthesized evidence comparing wedge resection and segmentectomy.

Main Results:

• Segmentectomy demonstrates oncologic equivalence to lobectomy for select patients with small, peripheral NSCLC.
• Evidence supporting wedge resection for NSCLC is less definitive.
• Wedge resection offers potential benefits in pulmonary preservation and perioperative safety but requires further validation.

Conclusions:

• Wedge resection may be suitable for carefully selected, standard-risk NSCLC patients.
• Routine use of wedge resection for NSCLC requires further high-level validation.
• Patient selection, margin status, lymph node evaluation, and tumor biology are critical for oncologic adequacy.