Holmium:YAG percutaneous nephrolithotomy: the laser incident angle matters.
Holmium:YAG percutaneous nephrolithotomy: the laser incident angle matters.
复制标题
钬：YAG经皮肾镜取石术：激光入射角很重要。
DOI：
10.1016/s0022-5347(01)63701-7
复制
发表时间：
1998
期刊：
影响因子：
--
通讯作者：
J. M. Harris
中科院分区：
文献类型：
--
作者：
J. Teichman;R. D. Rao;R. Glickman;J. M. Harris
激光物理学规定，当激光以正常入射照射目标时，会出现最大的辐射暴露。由于肾收集系统在经皮肾镜取石术中经常限制肾镜的移动，激光结石的入射角可能会有所不同。我们观察到，在经皮钬激光肾镜取石术中，侧发射纤维比端发射纤维更容易接近正常发生率。我们测试了假设钬：YAG经皮肾镜取石术与侧射纤维相比，端射纤维更快。材料与方法对连续经皮钬激光肾镜取石术病例进行回顾性分析。比较11例端部法和8例侧部法的结石大小、组成、手术时间、碎裂速度（大小/时间）和结石游离率。结果比较端射组和侧射组，结石大小（平均正负标准差）分别为22 +/−13 mm和48 +/−17 mm。（p = 0.004），一水草酸钙发生率分别为55和75% (p = 0.3)，手术时间分别为168 +/ - 87和124 +/ - 51分钟，计算的碎裂速度分别为0.15 +/ - 0.09和0.43 +/ - 0.15 mm. /分钟（p = 0.0009），结石清除率分别为73和88% （p = 0.4）。结论钬激光经皮肾镜取石术中，侧射快于端射快。这些结果与激光物理原理是一致的。
PurposeLaser physics dictate that maximal radiant exposure occurs when the laser strikes the target at a normal incidence. Since the renal collecting system often limits nephroscope movements during percutaneous nephrolithotomy, the laser-calculus incidence angle may vary. We have observed during holmium:YAG percutaneous nephrolithotomy that the side firing fiber more easily approaches a normal incidence compared to the end firing fiber. We test the hypothesis that holmium:YAG percutaneous nephrolithotomy is faster with a side firing fiber compared to an end firing fiber.Materials and MethodsConsecutive holmium:YAG percutaneous nephrolithotomy cases were studied retrospectively. The calculus size and composition, surgical time, fragmentation speed (size/time) and stone-free rates were compared between 11 patients treated with end and 8 treated with side firing fibers.ResultsWhen the end and side firing groups were compared, calculus sizes (mean plus or minus standard deviation) were 22 +/− 13 versus 48 +/− 17 mm. (p = 0.004), calcium oxalate monohydrate incidence was 55 versus 75% (p = 0.3), surgical times were 168 +/− 87 versus 124 +/− 51 minutes, computed fragmentation speeds were 0.15 +/− 0.09 versus 0.43 +/− 0.15 mm. per minute (p = 0.0009) and stone-free rates were 73 versus 88% (p = 0.4), respectively.ConclusionsThe side firing fiber is faster than the end firing fiber for holmium:YAG percutaneous nephrolithotomy. These results are consistent with principles of laser physics.
不同激光碎石机产生的瞬态空化和声发射。
影响因子：
2.7
作者：
Zhong,P;Tong,HL;Cocks,FH;Pearle,MS;Preminger,GM
通讯作者：
Preminger,GM
电液碎石过程中结石表面附近空化气泡的瞬态振荡。
影响因子：
2.7
作者：
Zhong,P;Tong,HL;Cocks,FH;Preminger,GM
通讯作者：
Preminger,GM