Lobectomy is the standard surgical treatment for many patients with early-stage NSCLC, but postoperative air leak remains a frequent complication associated with prolonged chest tube duration, longer hospitalization, and increased healthcare costs. Preliminary non-randomized evidence suggests that Progel Platinum may improve intraoperative sealing of fissure lines and reduce postoperative air leaks. E-SEAL is a prospective, randomized, controlled, multicenter study in 8 thoracic surgery centers. Eligible adult patients undergoing minimally invasive VATS upper or lower lobectomy for NSCLC are randomized 1:1 to stapling alone or stapling plus Progel Platinum. The primary endpoint is pleural drainage duration in hours. Secondary endpoints include postoperative length of stay, hospitalization costs, postoperative air leak incidence and volume, residual pleural space, complications, re-interventions, and follow-up outcomes up to 60 days after surgery/discharge.
