A randomized, prospective trial of stapled lung reduction versus laser bullectomy for diffuse emphysema

Area of Science:

• Pulmonology
• Thoracic Surgery
• Medical Technology

Background:

• Diffuse emphysema treatment options include laser bullectomy and stapled lung reduction surgery.
• Patient selection criteria included severe emphysema on CT and severe airflow obstruction.

Purpose of the Study:

• To compare the efficacy and safety of neodymium:yttrium aluminum garnet contact laser surgery versus stapled lung reduction surgery.
• To evaluate postoperative outcomes including oxygen dependency and lung function.

Main Methods:

• Prospective randomized trial involving 72 patients with severe emphysema.
• Unilateral thoracoscopic procedures: laser bullectomy (n=33) and stapled lung reduction (n=39).
• Outcome measures included operative mortality, operating time, hospital stay, air leakage, pneumothorax, oxygen dependency, and FEV1 improvement.

Main Results:

• Operative mortality was 0% for laser and 2.5% for stapled surgery.
• No significant differences in operating time, hospital days, or prolonged air leakage.
• Delayed pneumothorax occurred in 18% of the laser group versus 0% in the stapled group (p=0.005).
• Oxygen independence was achieved in 52% of the laser group versus 87.5% of the stapled group (p=0.02).
• Mean 6-month FEV1 improvement was significantly greater with stapled surgery (32.9%) compared to laser (13.4%) (p=0.01).

Conclusions:

• Stapled lung reduction surgery appears more effective than laser bullectomy for improving lung function and reducing oxygen dependency in severe emphysema patients.
• While both procedures have low operative mortality, laser treatment is associated with a higher risk of delayed pneumothorax.
• Stapled lung reduction surgery offers superior functional outcomes for patients with diffuse emphysema.