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Victor DR, Oliveira RDAPD, Melão BVLA, Coelho HGB, Barros Júnior TDP. Preoperative α1-Blockers Impact on Outcomes of Patients Undergoing Ureteroscopy with Ureteral Access Sheaths: A Systematic Review and Meta-Analysis. J Endourol 2024; 38:936-947. [PMID: 38757611 DOI: 10.1089/end.2024.0060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024] Open
Abstract
Introduction: The use of a ureteral access sheath (UAS) during ureteroscopy (URS) has been associated with the risk for ureteral injuries. Preoperative administration of α1-blockers presents a potential mitigator of such lesions by inducing ureteral relaxation, which may also contribute to improving other surgical outcomes. Methods: A comprehensive literature search was conducted across MEDLINE, Embase, and Cochrane databases for studies comparing preoperative α1-blockers administration vs its non-use in adult patients without pre-stenting undergoing URS. Binary outcomes were evaluated using risk ratios (RRs) and odds ratios (ORs) with 95% confidence intervals (CIs). Heterogeneity was measured with the Cochran's Q test, I2 statistics, and prediction intervals (PIs). A DerSimonian and Laird random-effects model was utilized for all outcomes. Results: Eleven studies encompassing 1074 patients undergoing URS were included, of whom 522 (48.60%) received α1-blockers before the procedure. Preoperative α1-blockers were associated with a reduction in significant ureteral injuries (RR 0.30; 95% CI 0.17-0.53; I2 = 6%; PI 0.10-0.88) and an increase in mean successful UAS insertion (OR 2.14; 95% CI 1.08-4.23; I2 = 23%; PI 0.51-8.93). In patients undergoing exclusively ureteroscopy lithotripsy (URSL), the medications also reduced total complications (RR 0.62; 95% CI 0.46-0.84; I2 = 0%) and complications graded Clavien-Dindo III or higher (RR 0.16; 95% CI 0.04-0.69; I2 = 0%), but no significant difference between groups was found in the stone-free rate (RR 1.10; 95% CI 0.86-1.40; I2 = 91%; PI 0.47-2.59). Conclusion: Preoperative α1-blockers were linked to a decrease in significant ureteral injuries with UAS use and fewer complications during URSL procedures. However, their impact on the successful insertion of a UAS remains uncertain. Consideration of administering preoperative α1-blockers in non-stented adult patients undergoing URS with UAS is advisable.
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Nam KH, Suh J, Shin JH, Chae HK, Park HK. Effect of perioperative tamsulosin on successful ureteral access sheath placement and stent-related symptom relief: A double-blinded, randomized, placebo-controlled study. Investig Clin Urol 2024; 65:342-350. [PMID: 38978214 PMCID: PMC11231658 DOI: 10.4111/icu.20240005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 03/18/2024] [Accepted: 04/23/2024] [Indexed: 07/10/2024] Open
Abstract
PURPOSE This study investigated the effect of administering tamsulosin before surgery on the successful insertion of a 12/14 French (F) ureteral access sheath (UAS) during the procedure, as well as the impact of preoperative and postoperative tamsulosin use on symptoms related to the ureteral stent. MATERIALS AND METHODS This study was a randomized, single-center, double-blinded, placebo-controlled trial involving 200 patients who underwent unilateral retrograde intrarenal surgery. Patients received either tamsulosin (0.4 mg) or placebo 1 week before surgery until stent removal. Patients were randomly assigned to one of four groups. Group 1 received tamsulosin throughout the study period. Group 2 received tamsulosin before surgery and placebo after surgery. Group 3 received placebo before surgery and tamsulosin after surgery. Group 4 received placebo before and after surgery. The USSQ (Ureteral Stent Symptom Questionnaire) was completed between postoperative days 7 and 14 immediately before stent removal. RESULTS A total of 160 patients were included in this analysis. Their mean age was 55.0±11.0 years, and 48 patients (30.0%) were female. In the group that received preoperative tamsulosin, the success rate of 12/14F UAS deployment was significantly higher than that of the preoperative placebo group (88.0 vs. 75.3%, p=0.038). Preoperative and postoperative tamsulosin did not significantly alleviate symptoms related to the ureteral stent. CONCLUSIONS Our results revealed that preoperative administration of tamsulosin improved the success of larger-sized UAS, whereas preoperative and postoperative tamsulosin use did not significantly alleviate symptoms related to ureteral stents.
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Affiliation(s)
- Kyeng Hyun Nam
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jungyo Suh
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jung Hyun Shin
- Department of Urology, Ewha Womans University Mokdong Hospital, Seoul, Korea
| | - Han Kyu Chae
- Department of Urology, Gangneung Asan Medical Center, University of Ulsan College of Medicine, Gangneung, Korea
| | - Hyung Keun Park
- Department of Urology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea.
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Elsaqa M, Hyder Z, Thai K, Dowd K, El Mekresh A, Wagner K, Patel B, Lowry P, El Tayeb MM. Comparison of commonly utilized ureteral access sheaths: A prospective randomized trial. Arch Ital Urol Androl 2023. [PMID: 37278382 DOI: 10.4081/aiua.2023.11149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Accepted: 01/22/2023] [Indexed: 06/07/2023] Open
Abstract
OBJECTIVE We aimed to evaluate and compare the functional characteristics, safety profile and effectiveness of two commonly used ureteral access sheaths (UAS) during flexible ureteroscopy. METHODS After institutional review board approval, patients with proximal ureteral or kidney stones requiring flexible ureteroscopy and UAS were prospectively randomized to group I or group II according to the type of access sheath used. Primary outcome was incidence of intraoperative complications. RESULTS Eighty-eight patients were enrolled in the study, 44 patients in each group. Sheath size 12/14 FR was used in both cohorts. Median (IQR) stone size was 10 mm (7-13.5) and 10.5 mm (7.37-14) in group I and II respectively (p = 0.915). Nineteen and twenty patients, in group I and II respectively, were pre-stented. Subjective resistance with insertion of the UAS was observed in 9 and 11 patients in group I and II respectively (p = 0.61) while failed insertion was encountered in one patient in group I. Traxer grade 1 ureteral injury was noted in 5 and 6 patients in group I and II respectively while grade 3 injury was seen in 1 patient for both cohorts (p = 0.338). There was less resistance for UAS placement in pre-stented patients (p = 0.0202) but without significant difference in ureteric injury incidence (p = 0.175). Emergency department visits were encountered in 7 (group I) and 5 patients (group II) (p = 0.534). CONCLUSIONS The studied UASs were comparable regarding safety and efficacy in the current study. Pre-stented and dilated ureters had less resistance to insertion although this was not reflected on incidence of ureteric injury.
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Affiliation(s)
- Mohamed Elsaqa
- Baylor Scott & White Medical Center, Temple, TX; Alexandria University Faculty of Medicine, Alexandria, Egypt.
| | - Zain Hyder
- Baylor Scott & White Medical Center, Temple, TX.
| | - Kim Thai
- Baylor Scott & White Medical Center, Temple, TX.
| | | | | | | | - Belur Patel
- Baylor Scott & White Medical Center, Temple.
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Xiang Y, Yan T, Fu M, Quan K, Shu J, Wang R. The regular use of calcium channel blockers before flexible URS appears to facilitate primary UAS insertion: a retrospective study in a single center. Int Urol Nephrol 2023; 55:547-551. [PMID: 36450869 DOI: 10.1007/s11255-022-03426-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/21/2022] [Indexed: 12/05/2022]
Abstract
PURPOSE To evaluate the effect of regular use of CCB before flexible URS for successful primary UAS insertion. MATERIALS AND METHODS We retrospectively analyzed 209 patients who underwent flexible ureteroscopy (URS) for upper urinary tract calculi between Jan 2021 and Dec 2021. Patients were divided into two groups based on whether calcium channel blockers (CCB) were used (n = 72) or not (n = 137). The following parameters were collected: age, sex, height and weight, BMI, stone location, stone burden, number of stones, operation time, hospital stay, hospital readmission, post-operative fever, post-operative SIRS rate, Clavien-Dindo grade, hospitalization costs, successful primary UAS insertion. We compared the two groups using Student's t test, Mann-Whitney U test and χ2 test for quantitative and categorical variables, respectively. A logistic regression model was used to identify predictive factors of UAS successful primary insertion. RESULTS Compared with the non-CCB group, the CCB group had a higher successful primary UAS insertion rate (97.2% vs.85.4%, p = 0.008), and a lower hospital readmission rate (2.8% vs.12.4%, p = 0.021). In multivariate analyses, the regular use of CCB was the only predictive factor of successful primary UAS insertion rate (OR 6.32, 95% CI 1.41-28.29, p = 0.016). CONCLUSION The regular use of calcium channel blockers (CCB) before flexible URS appears to facilitate ureteral access sheaths (UAS) primary insertion.
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Affiliation(s)
- Yechen Xiang
- Department of Urology, The First People's Hospital of Huaihua, University of South China, No. 144 Jinxi South Road, Huaihua, 418000, Hunan, China.
| | - Tingshuai Yan
- Department of Urology, The First People's Hospital of Huaihua, University of South China, No. 144 Jinxi South Road, Huaihua, 418000, Hunan, China
| | - Maoling Fu
- Department of Urology, The First People's Hospital of Huaihua, University of South China, No. 144 Jinxi South Road, Huaihua, 418000, Hunan, China
| | - Keli Quan
- Department of Urology, The First People's Hospital of Huaihua, University of South China, No. 144 Jinxi South Road, Huaihua, 418000, Hunan, China
| | - Jianping Shu
- Department of Urology, The First People's Hospital of Huaihua, University of South China, No. 144 Jinxi South Road, Huaihua, 418000, Hunan, China
| | - Ruoyu Wang
- Department of Urology, The First People's Hospital of Huaihua, University of South China, No. 144 Jinxi South Road, Huaihua, 418000, Hunan, China
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Hu Q, Yuan C, Shen S, Jian Z, Jin X, Ma Y, Li H, Wang K. Are adrenergic α1- antagonists beneficial for the access of retrograde ureteral access sheath or semi-rigid ureteroscope access? A systematic review and meta-analysis. Front Surg 2023; 9:1055904. [PMID: 36684219 PMCID: PMC9849750 DOI: 10.3389/fsurg.2022.1055904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Accepted: 11/30/2022] [Indexed: 01/06/2023] Open
Abstract
Introduction To evaluate the clinical benefit of preoperative adrenergic α1-antagonist therapy in the management of upper urinary calculi. Materials and methods Publications were searched for The Cochrane Central Register of Controlled Trials, EMBASE, and MEDLINE until 1 March 2022 that related to the adrenergic α1- antagonist intake as adjunctive therapy before retrograde surgery. Dichotomous data were reported with risk ratios (RR) with 95% confidence intervals (CIs) and the continuous data were reported with mean difference (MD) with 95% CIs. Results There were nine studies with 867 patients included in this meta-analysis. Preoperative adrenergic α1- antagonists could significantly elevate the compared with the placebo. Higher successful access rate to the stone was found in patients who received preoperative adrenergic α1- antagonists than those who received the placebo (RR 1.24; 95% CI 1.17-1.33). Besides, the application of preoperative adrenergic α1- antagonists can also elevate 4th-week stone-free rate (RR 1.20; 95% CI 1.12-1.28), decrease postoperative analgesia (RR 0.30;95% CI 0.20-0.46) and result in a lower risk of overall complications (RR 0.38; 95% CI 0.24-0.61). Conclusion Preoperative adjunctive adrenergic α1- antagonist therapy is effective and safe in the management of retrograde surgery with a higher successful access rate and lower risk of severe complications.
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De Coninck V, Somani B, Sener ET, Emiliani E, Corrales M, Juliebø-Jones P, Pietropaolo A, Mykoniatis I, Zeeshan Hameed BM, Esperto F, Proietti S, Traxer O, Keller EX. Ureteral Access Sheaths and Its Use in the Future: A Comprehensive Update Based on a Literature Review. J Clin Med 2022; 11:jcm11175128. [PMID: 36079058 PMCID: PMC9456781 DOI: 10.3390/jcm11175128] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 11/21/2022] Open
Abstract
Ureteral access sheaths (UASs) are part of urologist’s armamentarium when performing retrograde intrarenal surgery (RIRS). Recently, the world of RIRS has changed dramatically with the development of three game-changers: thulium fiber laser (TFL), smaller size single use digital flexible ureterosopes and intraoperative intrarenal pressure (IRP) measurement devices. We aimed to clarify the impact of UASs on IRP, complications and SFRs and put its indications in perspective of these three major technological improvements. A systematic review of the literature using the Medline, Scopus and Web of Science databases was performed by two authors and relevant studies were selected according to PRISMA guidelines. Recent studies showed that using a UAS lowers IRP and intrarenal temperature by increasing irrigation outflow during RIRS. Data on the impact of a UAS on SFRs, postoperative pain, risk of infectious complications, risk of ureteral strictures and risk of bladder recurrence of urothelial carcinoma after diagnostic RIRS were inconclusive. Prestenting for at least one week resulted in ureteral enlargement, while the influence of pre-operative administration of alpha-blockers was unclear. Since TFL, smaller single use digital ureteroscopes and devices with integrated pressure-measuring and aspiration technology seemed to increase SFRs and decrease pressure and temperature related complications, indications on the use of a UAS may decrease in the near future.
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Affiliation(s)
- Vincent De Coninck
- Department of Urology, AZ Klina, 2930 Brasschaat, Belgium
- Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846 Arnhem, The Netherlands
- Progressive Endourological Association for Research and Leading Solutions (PEARLS), 75020 Paris, France
- Correspondence: ; Tel.: +32-3-650-50-56
| | - Bhaskar Somani
- Department of Urology, University Hospital Southampton, Southampton SO16 6YD, UK
| | - Emre Tarik Sener
- Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846 Arnhem, The Netherlands
- Department of Urology, Marmara University School of Medicine, Istanbul 34854, Turkey
| | - Esteban Emiliani
- Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846 Arnhem, The Netherlands
- Department of Urology, Fundacio Puigvert, Autonomous University of Barcelona, 08025 Barcelona, Spain
| | - Mariela Corrales
- Progressive Endourological Association for Research and Leading Solutions (PEARLS), 75020 Paris, France
- Service d’Urologie, AP-HP, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
- GRC n°20, Groupe de Recherche Clinique sur la Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
| | - Patrick Juliebø-Jones
- Department of Urology, Haukeland University Hospital, N-5021 Bergen, Norway
- Department of Clinical Medicine, University of Bergen, N-5021 Bergen, Norway
| | - Amelia Pietropaolo
- Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846 Arnhem, The Netherlands
- Department of Urology, University Hospital Southampton, Southampton SO16 6YD, UK
| | - Ioannis Mykoniatis
- Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846 Arnhem, The Netherlands
- Department of Urology, Faculty of Health Sciences, School of Medicine, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece
| | - Belthangady M. Zeeshan Hameed
- Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846 Arnhem, The Netherlands
- Department of Urology, Kasturba Medical College Manipal, Manipal Academy of Higher Education, Manipal 576104, India
| | - Francesco Esperto
- Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846 Arnhem, The Netherlands
- Department of Urology, Campus Bio-Medico University, 00128 Rome, Italy
- Unit of Urology, Magna Graecia University of Catanzaro, 88100 Catanzaro, Italy
| | - Silvia Proietti
- Department of Urology, IRCCS San Raffaele Hospital, 20132 Milan, Italy
| | - Olivier Traxer
- Service d’Urologie, AP-HP, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
- GRC n°20, Groupe de Recherche Clinique sur la Lithiase Urinaire, Hôpital Tenon, Sorbonne Université, 75020 Paris, France
| | - Etienne Xavier Keller
- Young Academic Urologists (YAU), Urolithiasis & Endourology Working Party, 6846 Arnhem, The Netherlands
- Progressive Endourological Association for Research and Leading Solutions (PEARLS), 75020 Paris, France
- Department of Urology, University Hospital Zurich, University of Zurich, 8091 Zurich, Switzerland
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Law YXT, Teoh JYC, Castellani D, Lim EJ, Chan EOT, Wroclawski M, Pirola GM, Giulioni C, Rubilotta E, Gubbioti M, Scarcella S, Chew BH, Traxer O, Somani BK, Gauhar V. Role of pre-operative ureteral stent on outcomes of retrograde intra-renal surgery (RIRS): systematic review and meta-analysis of 3831 patients and comparison of Asian and non-Asian cohorts. World J Urol 2022; 40:1377-1389. [PMID: 35072738 DOI: 10.1007/s00345-022-03935-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2021] [Accepted: 01/07/2022] [Indexed: 12/27/2022] Open
Abstract
PURPOSE To evaluate the outcomes of pre-stented (PS) versus non-pre-stented (NPS) patients who have undergone retrograde intrarenal surgery (RIRS) for renal calculi with subgroup analysis of Asian and non-Asian cohorts. METHODS Protocol is registered in PROSPERO, CRD42021261123. Eligible studies identified from four electronic databases. Meta-analysis was done to enumerate the outcomes of RIRS in between PS and NPS. Secondary sub-analysis was done to look for differences in outcomes in Asian and non-Asian cohorts. RESULTS Fourteen studies involving 3831 patients (4 prospective, 10 retrospective studies) were included. PS patients experienced higher success rates of ureteral access sheath (UAS) insertion than NPS (RR 1.09, 95% CI 1.05-1.13, p < 0.00001). PS patients had lower risk of ureteral injuries from UAS placement (RR 0.69, 95% CI 0.50-0.96, p = 0.03). No significant differences in intra- and postoperative complications between two groups were found. Stone-free rate (SFR) outcomes for residual fragment (RF) cut-off of < 1 mm and < 4 mm favoured the PS patients (RR 1.10, 95% CI 1.04-1.17, p = 0.002 for < 4 mm, RR1.10, 95% CI 1.02-1.19, p = 0.02 for < 1 mm). In the subgroup analysis, PS Asian patients had similar SFR as NPS patients for SFR(< 4 mm) but non-Asian population showed better outcomes in the PS patients for SFR(< 4 mm) (RR 1.31, 95% CI 1.13-1.52, p = 0.0005). CONCLUSIONS This meta-analysis suggests that pre-stenting results in a higher success for UAS placement, minimising intraoperative ureteric injury, with higher overall SFR for any RF cut-off in PS cohorts. In non-Asian cohort, significant differences occurred at SFR < 4 mm but not for SFR < 1 mm. No difference was seen in our Asian cohort for any SFR cut-off in both PS and NPS patients.
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Affiliation(s)
- Y X T Law
- Department of Urology, National University Hospital, National University Health System, Singapore, Singapore.
| | - J Y C Teoh
- S.H. Ho Urology Centre, Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - D Castellani
- Urology Division, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Ancona, Università Politecnica Delle Marche, Ancona, Italy
| | - E J Lim
- Department of Urology, Singapore General Hospital, Singapore, Singapore
| | - E O T Chan
- S.H. Ho Urology Centre, Department of Surgery, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
| | - M Wroclawski
- Department of Urology, Hospital Israelita Albert Einstein, São Paulo, Brazil.,BP-a Beneficência Portuguesa de São Paulo, São Paulo, Brazil
| | - G M Pirola
- Department of Urology, San Donato Hospital, Arezzo, Italy
| | - C Giulioni
- Urology Division, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Ancona, Università Politecnica Delle Marche, Ancona, Italy
| | - E Rubilotta
- Department of Urology, A.O.U.I. Verona University, Verona, Italy
| | - M Gubbioti
- Department of Urology, San Donato Hospital, Arezzo, Italy
| | - S Scarcella
- Urology Division, Azienda Ospedaliero-Universitaria Ospedali Riuniti di Ancona, Università Politecnica Delle Marche, Ancona, Italy
| | - B H Chew
- Department of Urologic Sciences, University of British Columbia, Vancouver, Canada
| | - O Traxer
- Service d'Urologie, Sorbonne Université, Paris, France.,Service d'Urologie, AP-HP, Hôpital Tenon, Paris, France
| | - B K Somani
- Department of Urology, University Hospital Southampton NHS Trust, Southampton, UK
| | - V Gauhar
- Department of Urology, Ng Teng Fong General Hospital, Singapore, Singapore
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Hu J, Yu Y, Liu W, Zhong J, Zhou X, Xi H. Identification of the Risk Factors for the Failure of Ureteral Access Sheath Placement. Int J Clin Pract 2022; 2022:7518971. [PMID: 36120665 PMCID: PMC9467721 DOI: 10.1155/2022/7518971] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Revised: 08/18/2022] [Accepted: 08/25/2022] [Indexed: 12/03/2022] Open
Abstract
PURPOSE Insertion of a ureteral access sheath (UAS) may fail in some patients in retrograde intrarenal surgery (RIRS), and this study aimed to seek preoperative risk factors for the failure of 12/14F UAS placement. METHODS We retrospectively analyzed 260 consecutive patients who underwent RIRS between May 2020 and March 2022 at our institution. Data on patient and stone characteristics and several computed tomography (CT)-based measurements were collected and compared between the success and failure UAS placement groups. RESULTS Twenty-nine (11.2%) patients failed to insert the UAS. Age, gender, height, weight, stone side, stone location, length of history, and computed tomography (CT)-based parameters were not significant differences between the two groups. Univariate logistic regression analyses showed sex (female/male) (odds ratio: 0.287 and 95% CI [0.107, 0.722], p=0.013), length of history 15-31 days (odds ratio: 0.315 and 95% CI [0.102, 0.974], p=0.045), length of history >31 days (odds ratio: 0.202 and 95% CI [0.051, 0.805], p=0.023), and diameter of the ipsilateral common iliac artery (odds ratio: 1.285 and 95% CI [1.018, 1.623], p=0.035) were associated with UAS placement. CONCLUSION Our study indicated that males, the short length of history, and the short diameter of the ipsilateral common iliac artery were the risk factors for the failure of UAS placement.
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Affiliation(s)
- Jieping Hu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Yue Yu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Wei Liu
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Jialei Zhong
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Xiaochen Zhou
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, China
| | - Haibo Xi
- Department of Urology, The First Affiliated Hospital of Nanchang University, Nanchang, China
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