Non-Exposure Endoscopic-Laparoscopic Cooperative Surgery for Stomach Tumors: First Experience from the Czech Republic.

NEWS and CLEAN-NET allow en bloc non-exposed full-thickness gastric wall resection in a way that uses a "close first, cut later" approach to prevent seeding of the peritoneal cavity with tumor cells. These mini-invasive techniques combine laparoscopic and endoscopic techniques, and preserve the full function of the stomach.