Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral Stones
Objective:To investigate the effect of preoperative non-contrast computed tomography (NCCT) findings and peroperative laser probe selection on total laser time, energy level and ureterorenoscopy (URS) time for distal ureteral stones.Materials and Methods:We prospectively evaluated 72 patients with s...
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| Format: | Article |
| Language: | English |
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Galenos Yayinevi
2019-09-01
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| Series: | Journal of Urological Surgery |
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http://jurolsurgery.org/archives/archive-detail/article-preview/effects-of-laser-probes-and-computed-tomography-fi/30038
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| _version_ | 1797917114827276288 |
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| author | Serdar Çelik Ozan Bozkurt Işıl Başara Özgür Gürboğa Ömer Demir Mustafa Seçil Adil Esen |
| author_facet | Serdar Çelik Ozan Bozkurt Işıl Başara Özgür Gürboğa Ömer Demir Mustafa Seçil Adil Esen |
| author_sort | Serdar Çelik |
| collection | DOAJ |
| description | Objective:To investigate the effect of preoperative non-contrast computed tomography (NCCT) findings and peroperative laser probe selection on total laser time, energy level and ureterorenoscopy (URS) time for distal ureteral stones.Materials and Methods:We prospectively evaluated 72 patients with single distal ureteral stone measuring 5-25 mm in diameter on NCCT, who were treated with ureteroscopic lithotripsy (URSL) between June 2015 and October 2016. The patients were divided into two groups according to probe selection as 365 μm and 550 μm groups. Stone diameters, stone volume and Hounsfield units (HU) measured on NCCT, and URSL findings were noted at the end of the treatment. These findings were compared between the groups. Also the possible predictive value of NCCT findings was evaluated for URSL data.Results:There were 17 patients in the 365 μm and 55 patients in the 550 μm groups. There was no significant difference in URSL success rate and other predictive data between the groups. However, among the peroperative data, laser time, laser energy level and laser energy/time ratio were significantly lower in the 365 μm group compared to the 550 μm group (p<0.05). Correlation analysis indicated that total laser time and URS time were correlated with stone diameter, stone volume, HU values and density (HD). Laser energy level was only correlated with longitudinal stone diameter and HD.Conclusion:Stone diameter, volume and HU values are significant predictors of laser energy level, URS and laser time for distal ureteral stones. Also, use of a thinner probe decreases total laser time, laser energy level and laser energy/time ratio. In addition, thinner laser probe shortens URS time. |
| first_indexed | 2024-04-10T13:08:06Z |
| format | Article |
| id | doaj.art-4ef663481f284e30b88ecde4ba7fab6a |
| institution | Directory Open Access Journal |
| issn | 2148-9580 2148-9580 |
| language | English |
| last_indexed | 2024-04-10T13:08:06Z |
| publishDate | 2019-09-01 |
| publisher | Galenos Yayinevi |
| record_format | Article |
| series | Journal of Urological Surgery |
| spelling | doaj.art-4ef663481f284e30b88ecde4ba7fab6a2023-02-15T16:12:49ZengGalenos YayineviJournal of Urological Surgery2148-95802148-95802019-09-016320120610.4274/jus.galenos.2018.239213049054Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral StonesSerdar Çelik0Ozan Bozkurt1Işıl Başara2Özgür Gürboğa3Ömer Demir4Mustafa Seçil5Adil Esen6 İzmir Bozyaka Training and Research Hospital, Clinic of Urology, İzmir, Turkiye Dokuz Eylül University Faculty of Medicine, Department of Urology, İzmir, Turkiye Dokuz Eylül University, Faculty of Medicine, Department of Radiology, İzmir, Turkiye Dokuz Eylül University Faculty of Medicine, Department of Urology, İzmir, Turkiye Dokuz Eylül University Faculty of Medicine, Department of Urology, İzmir, Turkiye Dokuz Eylül University, Faculty of Medicine, Department of Radiology, İzmir, Turkiye Dokuz Eylül University Faculty of Medicine, Department of Urology, İzmir, Turkiye Objective:To investigate the effect of preoperative non-contrast computed tomography (NCCT) findings and peroperative laser probe selection on total laser time, energy level and ureterorenoscopy (URS) time for distal ureteral stones.Materials and Methods:We prospectively evaluated 72 patients with single distal ureteral stone measuring 5-25 mm in diameter on NCCT, who were treated with ureteroscopic lithotripsy (URSL) between June 2015 and October 2016. The patients were divided into two groups according to probe selection as 365 μm and 550 μm groups. Stone diameters, stone volume and Hounsfield units (HU) measured on NCCT, and URSL findings were noted at the end of the treatment. These findings were compared between the groups. Also the possible predictive value of NCCT findings was evaluated for URSL data.Results:There were 17 patients in the 365 μm and 55 patients in the 550 μm groups. There was no significant difference in URSL success rate and other predictive data between the groups. However, among the peroperative data, laser time, laser energy level and laser energy/time ratio were significantly lower in the 365 μm group compared to the 550 μm group (p<0.05). Correlation analysis indicated that total laser time and URS time were correlated with stone diameter, stone volume, HU values and density (HD). Laser energy level was only correlated with longitudinal stone diameter and HD.Conclusion:Stone diameter, volume and HU values are significant predictors of laser energy level, URS and laser time for distal ureteral stones. Also, use of a thinner probe decreases total laser time, laser energy level and laser energy/time ratio. In addition, thinner laser probe shortens URS time. http://jurolsurgery.org/archives/archive-detail/article-preview/effects-of-laser-probes-and-computed-tomography-fi/30038 Distal ureteral stoneHounsfield units (HU)Laser lithotripsyNon-contrast computed tomography (NCCT)Ureterorenoscopy (URS) |
| spellingShingle | Serdar Çelik Ozan Bozkurt Işıl Başara Özgür Gürboğa Ömer Demir Mustafa Seçil Adil Esen Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral Stones Journal of Urological Surgery Distal ureteral stone Hounsfield units (HU) Laser lithotripsy Non-contrast computed tomography (NCCT) Ureterorenoscopy (URS) |
| title | Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral Stones |
| title_full | Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral Stones |
| title_fullStr | Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral Stones |
| title_full_unstemmed | Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral Stones |
| title_short | Effects of Laser Probes and Computed Tomography Findings on Ureterorenoscopic Laser Lithotripsy Success Rate, Laser Time, Laser Energy Level and Operative Time for Distal Ureteral Stones |
| title_sort | effects of laser probes and computed tomography findings on ureterorenoscopic laser lithotripsy success rate laser time laser energy level and operative time for distal ureteral stones |
| topic | Distal ureteral stone Hounsfield units (HU) Laser lithotripsy Non-contrast computed tomography (NCCT) Ureterorenoscopy (URS) |
| url |
http://jurolsurgery.org/archives/archive-detail/article-preview/effects-of-laser-probes-and-computed-tomography-fi/30038
|
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