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  • Title: Gastric mucosal dissection using the Nd-YAG laser synthetic sapphire crystal contact probe. Development of an endoscopic method for the treatment of pancreatic pseudocysts.
    Author: ReMine SG, Setzer SE, Shapshay SM.
    Journal: Am Surg; 1988 Feb; 54(2):78-80. PubMed ID: 3341649.
    Abstract:
    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.
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