Sander R, Poesl H, Zuern W, Spuhler A, Braida M
1. Medical Division--Gastroenterology, Municipal Hospital Munich-Harlaching, FRG.
Endoscopy. 1989 Sep;21(5):217-20. doi: 10.1055/s-2007-1012952.
In a randomized, prospective study, 57 patients with a gastroduodenal ulcer and a visible vessel with or without spurting bleeding were treated with a Nd:YAG laser (lambda = 1.064 nm). Twenty-eight of these patients were treated using the conventional non-contact (NC) modality, and 29 were treated with the water jet (WJ) laser. Apart from the technical advantages (minimal smoke development, no damage to adjacent structures) the WJ group had a lower rate of induced spurting bleeds (25% WJ versus 55% NC). The therapeutic failure/mortality rate of 7%/0% respectively for the water-jet group was lower than the 18%/7% for the non-contact group. The initial clinical results of this study suggest that the water-jet Nd:YAG laser system is superior to the non-contact system.
在一项随机前瞻性研究中，对57例患有胃十二指肠溃疡且伴有可见血管（有或无喷射性出血）的患者使用钕钇铝石榴石激光（波长 = 1.064纳米）进行治疗。其中28例患者采用传统非接触（NC）模式治疗，29例患者采用水刀（WJ）激光治疗。除了技术优势（烟雾产生极少、不损伤相邻结构）外，WJ组诱发喷射性出血的发生率较低（WJ组为25%，NC组为55%）。水刀组的治疗失败/死亡率分别为7%/0%，低于非接触组的18%/7%。这项研究的初步临床结果表明，水刀钕钇铝石榴石激光系统优于非接触系统。
