Holmium:yttrium-aluminum-garnet lithotripsy efficiency varies with stone composition

被引：80

作者：

Teichman, JMH

Vassar, GJ

Glickman, RD

机构：

[1] Univ Texas, Hlth Sci Ctr, Div Urol, San Antonio, TX 78284 USA

[2] Univ Texas, Hlth Sci Ctr, Dept Ophthalmol, San Antonio, TX 78284 USA

来源：

UROLOGY | 1998年 / 52卷 / 03期

关键词：

D O I：

10.1016/S0090-4295(98)00239-8

中图分类号：

R5 [内科学]; R69 [泌尿科学（泌尿生殖系疾病）];

学科分类号：

1002 ; 100201 ;

摘要：

Objectives. To test the hypothesis that holmium:yttrium-aluminum-garnet (YAG) lithotripsy efficiency varies with stone composition. Methods. Single pulses of holmium:YAG energy were delivered using 272-, 365-, 550-, and 940-mu m optical fibers to human calculi composed of calcium oxalate monohydrate (COM), calcium hydrogen phosphate dihydrate (CHPD), cystine, magnesium ammonium phosphate hexohydrate (MAPH), and uric acid. Energy/pulse settings were 0.2, 0.5, 1.0, and 1.5 J. Stone crater width and depth were characterized with reflectance light microscopy. Results. For similar energies overall MAPH yielded the deepest and widest craters. CHPD, cystine, and uric acid yielded craters of intermediate width and depth. COM yielded the smallest craters. Within any given composition, increased pulse energy yielded craters of increased width and depth. Conclusions. Holmium:YAG lithotripsy efficiency varies with stone composition. The rank order of crater size appears to correlate with thermal threshold for each composition. Increased holmium:YAG energy produces larger craters for all compositions. UROLOGY 52: 392-397, 1998. (C) 1998, Elsevier Science Inc. All rights reserved.

引用

页码：392 / 397

页数：6

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