Clinical application of flexible ureteroscopic sheath with controllable intraluminal pressure in treating ureteral stones

doi:10.1016/j.ajur.2021.08.007

Asian Journal of Urology, 2023, 10 (2): 166-171 doi: 10.1016/j.ajur.2021.08.007

Original Article

Clinical application of flexible ureteroscopic sheath with controllable intraluminal pressure in treating ureteral stones

Yuming Zhong^a,Donghua Xie^b,Chunxiang Luo^a,c,Xiaohui Liao^a,d,Tairong Liu^a,Xiaoling Deng^a,Lunfeng Zhu^a,Leming Song^a,*(

)

^aDepartment of Urology, The Affiliated Ganzhou Hospital of Nanchang University, Ganzhou, Jiangxi, China
^bXie Urology, Margate, FL, USA
^cLiaobu Township Community Health Service Center, Dongguan, Guangdong, China
^dGan County District Dermatology Institute, Ganzhou, Jiangxi, China

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Abstract

Objective: The purpose of the study was to assess the clinical efficacy and safety of a combined perfusion suction platform with pressure feedback control function and an ureteroscopic suction sheath that can measure the ureteropelvic pressure in implementing lithotripsies.
Methods: Fifty-two patients who underwent lithotripsy under intelligent monitoring of ureteral intraluminal pressure from June 2016 to January 2018 were retrospectively recruited. The inclusion standard was stone diameter >1.5 cm but <2.5 cm. After the 12/14 Fr suction sheath was placed, manometer interface and suction interface of the sheath were connected to the platform via the pressure sensor and suction tube, respectively. The ureteroscope was connected to the platform perfusion pump, and the crushed stones were aspirated out under negative pressure.
Results: According to the location of the stone, 21 (40.4%) cases were classified as upper ureteral stones, 19 (36.5%) were midureteral stones, and 12 (23.1%) were lower ureteral stones. Forty-seven patients underwent successful primary sheath placement and lithotripsy with a mean operative time of 34.5 (standard deviation 18.3) min. Retrograde stone migration did not occur. There were eight patients with hematuria postoperatively. Serious complication was 1.9% with one case of ureteral perforation. Stone clearance was 95.7% at Day 1-2 postoperatively, and 100% at Day 30 postoperatively.
Conclusion: Ureteroscopic lithotripsy with intelligent pressure control using our device improved the efficiency of the lithotripsy and rate of stone clearance. The safety of the operation can be ensured. It is worth popularization and application in clinical practice.

Key words： Suction Ureteroscopy Intelligent pressure control Ureteral calculi

Received: 02 August 2020 Available online: 20 April 2023

Corresponding Authors: Leming Song E-mail: slm631@outlook.com

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	Xiaoling Deng
	Lunfeng Zhu
	Leming Song

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Cite this article:

Yuming Zhong,Donghua Xie,Chunxiang Luo, et al. Clinical application of flexible ureteroscopic sheath with controllable intraluminal pressure in treating ureteral stones[J]. Asian Journal of Urology, 2023, 10(2): 166-171.

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http://www.ajurology.com/EN/10.1016/j.ajur.2021.08.007 OR http://www.ajurology.com/EN/Y2023/V10/I2/166

The medical perfusion suction platform.

Structure of the ureteral access sheath with the function of suction and pressure monitor. 1. Pressure-sensitive tip; 2. The suctioning channel; 3. The pressure monitoring feedback channel.

Contralateral oblique supine position.

Demographic data and stone characteristics.

Intraoperative and postoperative outcomes.

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