Gastric mucosal dissection using the Nd-YAG laser synthetic sapphire crystal contact probe. Development of an endoscopic method for the treatment of pancreatic pseudocysts

• Published in: The American surgeon Vol. 54; no. 2; p. 78
• Main Authors: ReMine, S G, Setzer, S E, Shapshay, S M
• Format: Journal Article
• Language: English
• Published: United States 01.02.1988
• Subjects: Animals; Dogs; Endoscopes; Endoscopy - methods; Gastric Mucosa - surgery; Gastrostomy; Hemostasis, Surgical - methods; Laser Therapy - instrumentation; Laser Therapy - methods; Pancreatic Cyst - surgery; Pancreatic Pseudocyst - surgery; Stomach Ulcer - surgery
• ISSN: 0003-1348

A canine gastric-ulcer model was developed to evaluate the safety and effectiveness of the neodymium yttrium-aluminum-garnet (Nd-YAG) laser synthetic sapphire crystal contact probe in intraluminal gastric dissection. The purpose of the study was to assess the potential endoscopic application of the Nd-YAG contact probe in cystogastrostomy for the treatment of selected patients with pancreatic pseudocyst. Seven dogs were used in the study. In the first two dogs, full-thickness linear incisions through the gastric wall demonstrated the Nd-YAG contact probe could be used for a full-thickness gastrostomy dissection. In the other five dogs, gastric ulcers were created by injection of morrhuate sodium (5%). Gastric mucosal dissection with the Nd-YAG contact probe was performed without difficulty. Hemostasis was obtained with either the Nd-YAG contact probe or noncontact fiber, and all areas of dissection and ulcer beds healed within 35 days. The Nd-YAG laser contact endoscopic delivery system appears to be a promising technique for intraluminal dissection.