Quantitation of colonic injury from argon laser, neodymium: YAG laser and monopolar electrocautery applied to flat mucosa and small sessile polyps of the canine colon.

摘要: This study determined the optimum laser energy for ablation of colonic mucosal lesions and small sessile polyps in canine colon. Neodymium (Nd):YAG laser, argon monopoiar electrocautery were applied to exposed mucosa various application times at power settings. At minimum level necessary ablate mucosa, Nd:YAG caused greater muscularis injury than monopolar eiectrocautery. higher levels, laser. Small surgically created colon ablated endoscopically with three sources. Single-session complete polyp occurred most frequently least The depth tissue beneath sites was greatest suggests that is safer or coagulation flat lesions. Although polyps, it may be less effective single-session figuration 5 mm diameter. (Gastrointest Endosc 1989;35:16-21)