Resistance of different guidewires to laser injury: an in-vitro experiment

Minerva urologica e nefrologica = The Italian journal of urology and nephrology
Nuno MoraisEstêvão Lima

Abstract

In urology, lasers are used in a variety of endoscopic procedures such as ureteroscopy and retrograde renal surgery for stone fragmentation of urinary calculi and ablation of urothelial tumors. To perform these procedures, guidewires are used as a preliminary safe-mainstay for referencing the urinary tract. This study aims to determine the effect of two different lasers: holmium:YAG (Ho:YAG) and thulium:YAG (Tm:YAG) lasers on metal guidewires with PTFE coating (PTFE), nitinol guidewires with hydrophilic coating (Hydrophilic) and nitinol guidewires with hydrophilic listed coating (Zebra). Different combinations of frequency (5, 10 and 12 Hz) and energy per pulse (0.5, 1.5, and 2.6 J) of Ho:YAG laser were applied on the three kinds of guidewires in two experiments (50 J vs. 100 J of total energy). For the Tm:YAG laser three power levels (5, 35, and 70 W) with a total energy of 100 J were applied to the guidewires. The degree of damage (0 to 5) of the guidewire was assessed after each laser application. A higher degree of injury of guidewires was related to higher values of total energy used for the Ho:YAG laser (P=0.036), and to higher values of power applied with the Tm:YAG (P=0.051). The most resistant guidewire to Ho:YAG laser...Continue Reading

References

Jun 1, 1981·The Journal of Urology·P FritzscheR R Torrey
Jun 1, 1997·Journal of Endourology·G S FreihaJ M Teichman
Nov 14, 1997·Journal of Endourology·G S FreihaJ M Teichman
Jul 20, 2002·The Journal of Urology·James D WattersonJohn D Denstedt
May 6, 2004·The Journal of Urology·Matthew ClaymanRalph V Clayman
Aug 10, 2006·Lasers in Medical Science·A FarkasCs Tóth
Oct 28, 2006·Medical Engineering & Physics·Alexandru PatriciuDan Stoianovici
Apr 15, 2008·Urology·Giovanni LiguoriEmanuele Belgrano
Jan 9, 2009·Urological Research·Jonathan ReevesMalcolm Birch
Oct 1, 2013·Journal of Endourology·Abdulaziz M AlthunayanSero Andonian
Apr 8, 2015·Archivio italiano di urologia, andrologia : organo ufficiale [di] Società italiana di ecografia urologica e nefrologica·Francesca ManasseroCesare Selli

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