Jellison Forrest C, Baldwin D Duane, Berger Kenneth A, Maynes Lincoln J, Desai Premal J
Division of Urologic Surgery, Loma Linda University Medical Center, Loma Linda, CA 92354, USA.
J Endourol. 2005 Sep;19(7):889-93. doi: 10.1089/end.2005.19.889.
To compare the efficacy of nonabsorbable polymer ligating (NPL) and titanium clips applied with and without a 1-mm vascular cuff at physiologic and supraphysiologic pressures.
An in vitro equine-vessel model was created to test clip occlusion strength. Ten-millimeter NPL and standard Ti clips were applied to veins (10 mm) and arteries (10, 6, and 5 mm) with and without a 1-mm cuff and tested until they held a pressure of 300 mm Hg (veins) or 760 mm Hg (arteries) for 2 minutes or leaked.
The NPL clip was statistically more secure on 10-mm veins with and without a cuff, 10-mm arteries with and without a cuff, and 6-mm arteries with a cuff than was the Ti clip. Leaving a 1-mm cuff resulted in a statistically higher leak point in all vessels tested except the 6-mm arteries secured with the Ti clip.
The NPL clip was more secure than the Ti clip on larger arteries and veins. A 1-mm vascular cuff enhances the security of both NPL and Ti clips in vessels of all sizes. The NPL clip is secure and reliable in securing both arteries and veins.
比较不可吸收聚合物结扎术（NPL）与钛夹在生理压力和超生理压力下，使用和不使用1毫米血管袖带时的疗效。
建立体外马血管模型以测试夹子的闭塞强度。将10毫米的NPL和标准钛夹应用于有和没有1毫米袖带的静脉（10毫米）和动脉（10、6和5毫米），并进行测试，直到它们在300毫米汞柱（静脉）或760毫米汞柱（动脉）的压力下保持2分钟或发生渗漏。
在有和没有袖带的10毫米静脉、有和没有袖带的10毫米动脉以及有袖带的6毫米动脉上，NPL夹在统计学上比钛夹更牢固。除了用钛夹固定的6毫米动脉外，在所有测试血管中，保留1毫米袖带在统计学上导致更高的渗漏点。
在较大的动脉和静脉上，NPL夹比钛夹更牢固。1毫米的血管袖带可提高NPL和钛夹在各种尺寸血管中的安全性。NPL夹在固定动脉和静脉方面安全可靠。
