New endoscopic platform for endoluminal en bloc tissue resection in the gastrointestinal tract (with videos).

Background: Endoscopic removal of gastrointestinal tract lesions is increasingly popular around the world. We evaluated feasibility, safety, effectiveness, and user learning curve of new endoscopic platform for complex intraluminal interventions.

Methods: A novel system, consisting of expandable working chamber with two independent instrument guides (LIG), was inserted into colon.

New bipolar tissue ligator combines constant tissue compression and temperature guidance: histologic study and implications for treatment of hemorrhoids.

Background: Several minimally invasive technologies are available to treat common soft tissue lesions including symptomatic hemorrhoids. The use of energy to deliver heat and coagulate target lesions is commonly practiced. This study compares the histologic effects produced on intestinal tissues by two energy-based systems which employ different approaches of heat delivery.

Comparison of laparoscopic, open, and converted appendectomy for perforated appendicitis.

Background: Perforated appendicitis is associated with a significant risk of postoperative abdominal and wound infection. Only a few controversial studies evaluate the role of laparoscopy in perforated appendicitis. The significance of conversion from laparoscopy to open appendectomy for perforated appendicitis is not well defined.

Transumbilical laparoscopic cholecystectomy utilizes no incisions outside the umbilicus.

Laparoscopic cholecystectomy has become the gold standard in the care of patients with cholelithiasis. A standard laparoscopic cholecystectomy employs three trocar incisions outside the umbilicus, which are a source of potential wound complications and an undesirable cosmetic outcome. We describe here a modification of the laparoscopic cholecystectomy which utilizes two transumbilical trocars and two transabdominal gallbladder stay sutures and does not require abdominal wall incisions outside the umbilicus.

Simplified technique of mesh fixation during laparoscopic repair of abdominal ventral hernia.

The current techniques for intraperitoneal mesh fixation are complex and time-consuming. We present here a simple technique for the fixation of the mesh during laparoscopic intraperitoneal ventral hernia repair.