Article Sidebar

PDF
Date Published: 21/04/2022
Abstract Views: 310
Views PDF: 294
DOI: https://doi.org/10.51298/vmj.v511i2.2135
Issue
Vol. 511 No. 2 (2022)
Section
Các bài báo
How to Cite
Thanh Hải, P. ., Công Bình, N. ., Đức, T. ., & Văn Thương, P. . (2022). FACTORS AFFECTING SUCCESS RATE AND STONE FREE RATE OF FLEXIBLE URETEROSCOPY FOR RENAL STONES AT VIET TIEP HOSPITAL. Vietnam Medical Journal, 511(2). https://doi.org/10.51298/vmj.v511i2.2135

FACTORS AFFECTING SUCCESS RATE AND STONE FREE RATE OF FLEXIBLE URETEROSCOPY FOR RENAL STONES AT VIET TIEP HOSPITAL

Phạm Thanh Hải1,, Nguyễn Công Bình1, Trần Đức2, Phạm Văn Thương1
1 Viet Tiep Hospital, Haiphong
2 108 Military Central Hospital

Main Article Content

Abstract

Objective: To analyze the factors affecting success rate and stone free rate of flexible ureteroscopy and laser lithotripsy (FURSL) for renal stone. Materials and methods: Data on a total of 40 patients with FURSL for renal stones at Viet Tiep hospital between October 2020 and June 2021, were prospectively analyzed. Factors associated were evaluated using SPSS 20.0. Univariate and multivariate analyses were done to determine predictive factors affecting success rate and stone free rate. Results: Success in operation: 85%, failure: 15%. A multivariate assessment revealed three independent factors influencing success rate (p<0.05): stone size (p=0,03), stone number (p=0,001), stone location (p=0,011) and not influencing (p>0,05): operation history (p=0,499), using ureteral access sheath (p=0,555), stone displacement (p=0,376), angle between infundibula and renal pelvis (p=0,533). Stone free rate after 1 month: 92,5%. Factors influencing Stone free rate (p<0.05): stone number (p=0,01) anh factors not influencing (p>0,05): stone size (p=0,141), stone location (p=0,083), angle between infundibula and renal pelvis (p=0,1). Conclusions: The results of the current study indicated that operation history, stone size, stone number, stone location, using ureteral access sheath, stone displacement and angle between infundibula and renal pelvis were factors affecting success rate and stone free rate after FURSL. However, experience of the surgeon play an important role. FURSL is good and effective indication for treatment of renal stone ≤ 20 mm, especially for the cases treated with surgical procedures before.

Article Details

Keywords

Flexible ureteroscopy, renal stone

References

1. Phan Trường Bảo (2016). Đánh giá vai trò nội soi mềm trong điều trị sỏi thận. Luận án tiến sĩ y học, Đại học Y dược TP HCM.
2. Phạm Ngọc Hùng (2018). Nghiên cứu ứng dụng kỹ thuật nội soi niệu quản ngược dòng điều trị sỏi thận bằng ống soi mềm. Luận án tiến sĩ y học, Học Viện Quân Y.
3. Ito H, Kawahara T, Terao H, Ogawa T, Yao M, Kubota Y, Matsuzaki J (2012), “The most reliable preoperative assessment of renal stone burden as a predictor of stone-free status after flexible ureteroscopy with holmium laser lithotripsy: a single-center experience”, Urology by Elsevier Inc, 80: pp. 524-528.
4. Pearle MS, Lotan Y (2012), “Urinary Lithiasis: Etiology, Epidemiology, and Pathogenesis”, chapter 45, Section XI in Alan J. Wein (eds): CampbellWalsh Urology, Saunders Elsevier 10th edi: pp. 1257-86.
5. Perlmutter AE, Talug C, Tarry WF, Tarry WF, Zaslau S, Mohseni H, Kandzari SJ (2008), “Impact of stone location on success rates of endoscopic lithotripsy for nephrolithiasis”, Urology by Elsevier Inc, 71: pp. 214-217.
6. Resorlu B., Oguz U., Resorlu E. B. et al (2012), “The impact of pelvicaliceal anatomy on the success of retrograde intrarenal surgery in patients with lower pole renal stones”, Urology, 79: pp. 61–66.
7. Stoller ML (2013), “Urinary stone disease” in McAninch JW and Lue TF (eds): Smith and Tanagho’s General Urology. McGraw - Hill 18th edi: pp. 249-7.