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Holmium: Yttrium-aluminum-garnet laser lithotripsy: Is there a difference in ablation rates between short and long pulse duration?
| Content Provider | Europe PMC |
|---|---|
| Author | Ntasiotis, Panteleimon Peteinaris, Angelis Lattarulo, Marco Tsaturyan, Arman Asutay, Mehmet Kazim Adamou, Constantinos Vagionis, Athanasios Pagonis, Konstantinos Koukiou, Georgia Al-Aown, Abdulrahman Liatsikos, Evangelos Kallidonis, Panagiotis |
| Copyright Year | 2023 |
| Abstract | Introduction:The high-power holmium: yttrium–aluminum–garnet lasers provide a wide variety of settings for stone disintegration. The aim of this in vitro study is to evaluate the effect of short and long pulse duration on ablation rates on urinary stones.Materials and Methods:Two types of artificial stones were created by BegoStone™ with different compositions (15:3 and 15:6, stone/water ratio). Stones with a 15:3 and 15:6 powder-to-water ratio were defined as hard and soft stones, respectively. Lithotripsy was performed with different laser settings using a custom-made in vitro model consisting of a 60 cm long and 19 mm diameter tube. The ablation rate is defined as the final total mass subtracted from the initial total mass and divided to the time of treatment. Stone ablation rates were measured according to different laser settings with total power of 10W (0,5J-20 Hz, 1J-10 Hz, 2J-5 Hz) and 60W (1J-60 Hz, 1,5J-40 Hz, 2J-30 Hz).Results:Higher pulse rates and higher total power settings were related to higher ablation rates. Short pulse duration was more effective on soft stones, whereas long pulse duration was more effective on hard stones. For the same power settings, the highest energy–lowest frequency combination resulted in higher ablation rate in comparison to the lowest energy–higher frequency combination. Finally, short and long pulse average ablation rates do not differ so much.Conclusion:Regardless of the stone type and pulse duration, utilization of higher power settings with higher energies increased the ablation rates. Higher ablation rates were demonstrated for hard stones using long pulse duration, and for soft stones with short pulse duration. |
| ISSN | 09747796 |
| Journal | Urology Annals |
| Volume Number | 15 |
| PubMed Central reference number | PMC10252782 |
| Issue Number | 2 |
| PubMed reference number | 37304523 |
| e-ISSN | 09747834 |
| DOI | 10.4103/ua.ua_111_22 |
| Language | English |
| Publisher | Wolters Kluwer - Medknow |
| Publisher Date | 2023-03-17 |
| Publisher Place | India |
| Access Restriction | Open |
| Rights License | This is an open access journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms. Copyright: © 2023 Urology Annals |
| Subject Keyword | Ablation rate artificial stones high power laser holmium: yttrium–aluminum–garnet laser lithotripsy pulse duration |
| Content Type | Text |
| Resource Type | Article |
| Subject | Urology |
