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Article type: Research Article
Authors: Wang, Pinga; 1 | Ma, Shumeib; 1 | Wang, Xuelianc; *
Affiliations: [a] Department of Urology, Zhongxian People’s Hospital, Chongqing, China | [b] Department of Health Management Center, Zhongxian People’s Hospital, Chongqing, China | [c] Department of Oncology and Hematology, Zhongxian People’s Hospital, Chongqing, China
Correspondence: [*] Corresponding author: Xuelian Wang, Department of Oncology and Hematology, Zhongxian People’s Hospital, No. 25, Zhongbo Branch Road, Zhongzhou Street, Zhongxian, Chongqing 404300, China. E-mail: [email protected].
Note: [1] Ping Wang and Shumei Ma contributed equally to this work.
Abstract: BACKGROUND: Soft ureteroscopic holmium laser lithotripsy is becoming increasingly popular as the preferred method for treating mid-to-lower ureteral stones. Studies have indicated that the size, composition, hardness, and fragility of the stones can impact the treatment’s effectiveness. OBJECTIVE: To explore the relationship between stone volume, average CT value and operation time and efficiency before ureteral soft lens laser lithotripsy. METHODS: Our study on 126 patients undergoing ureteroscopic holmium laser lithotripsy for ureteral calculi from May 2020 to January 2022 categorized them into groups based on stone volume and CT value. We compared surgical outcomes and analyzed correlations between stone characteristics, operation parameters, and stone clearance rate to identify independent risk factors influencing treatment efficacy. RESULTS: Group A demonstrated significantly shorter operation durations and lower blood loss compared to Group B, along with higher single stone clearance rates and fewer postoperative complications. Similarly, Group C exhibited shorter operation times, reduced blood loss, higher stone clearance rates, and lower complication rates than Group D. Preoperative stone volume and CT value correlated positively with operation time and stone clearance rate, with both factors identified as independent risk factors affecting ureteral stone clearance following holmium laser lithotripsy. CONCLUSION: The stone volume and average CT value before ureteral soft lens laser lithotripsy show a positive correlation with operation time and efficiency, indicating that larger stone volumes and higher CT values lead to slower lithotripsy speeds and reduced operation efficiency. Furthermore, preoperative stone volume and average CT value are identified as independent risk factors for residual stones.
Keywords: Ureteral soft lens laser lithotripsy, stone volume, stone CT value, operation time, operation efficiency
DOI: 10.3233/THC-240794
Journal: Technology and Health Care, vol. Pre-press, no. Pre-press, pp. 1-10, 2024
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