Comparison of silicone versus polyurethane ureteral stents: a prospective controlled study

Abstract Background Approximately 80% of patients with indwelling ureteral stents experience stent related symptoms (SRS). We believe SRS can be reduced through altering the composition of ureteral stents to a less firm material. Therefore, we aim to compare modern silicone and polyurethane ureteral...

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Main Authors: Nariman Gadzhiev, Dmitry Gorelov, Vigen Malkhasyan, Gagik Akopyan, Revaz Harchelava, Denis Mazurenko, Christina Kosmala, Zhamshid Okhunov, Sergei Petrov
Format: Article
Language:English
Published: BMC 2020-02-01
Series:BMC Urology
Subjects:
Online Access:https://doi.org/10.1186/s12894-020-0577-y
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author Nariman Gadzhiev
Dmitry Gorelov
Vigen Malkhasyan
Gagik Akopyan
Revaz Harchelava
Denis Mazurenko
Christina Kosmala
Zhamshid Okhunov
Sergei Petrov
author_facet Nariman Gadzhiev
Dmitry Gorelov
Vigen Malkhasyan
Gagik Akopyan
Revaz Harchelava
Denis Mazurenko
Christina Kosmala
Zhamshid Okhunov
Sergei Petrov
author_sort Nariman Gadzhiev
collection DOAJ
description Abstract Background Approximately 80% of patients with indwelling ureteral stents experience stent related symptoms (SRS). We believe SRS can be reduced through altering the composition of ureteral stents to a less firm material. Therefore, we aim to compare modern silicone and polyurethane ureteral stents in terms of SRS intensity and safety. Methods From June 2018 to October 2018, patients from two distinct clinical centers were prospectively enrolled in the study and stratified (non-randomly) into either control group A, patients who received polyurethane stents (Rüsch, Teleflex), or experimental group B, patients who received silicone stents (Cook Medical). Each participant completed a survey 1 h after stent insertion, in the middle of the stent dwelling period, and before stent removal or ureteroscopy noting body pain and overactive bladder via the visual analog scale pain (VASP) and overactive bladder (OAB) awareness tool, respectively. Additionally, successfulness of stent placement, hematuria, number of unplanned visits, and stent encrustation rates were assessed within each group. Results A total of 50 patients participated in the study, control group A consisted of 20 patients and experimental group B consisted of 30 patients. Participants in group B, silicone ureteral stents, demonstrated significantly lower mean values of VASP 2 weeks prior to stent removal and promptly before stent removal (p = 0.023 and p = 0.014, respectively). No other comparisons between the two groups were statistically significant. Conclusions Compared to polyurethane ureteral stents, silicone ureteral stents are associated with lower body pain intensity assessed by VASP 2 weeks before stent removal and at the time of stent removal. Trial registration Current Controlled Trials NCT04000178. Retrospectively registered on June 26, 2019.
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spelling doaj.art-18665eb84fbe400a81ed431c9f6cb7492022-12-21T23:17:32ZengBMCBMC Urology1471-24902020-02-012011510.1186/s12894-020-0577-yComparison of silicone versus polyurethane ureteral stents: a prospective controlled studyNariman Gadzhiev0Dmitry Gorelov1Vigen Malkhasyan2Gagik Akopyan3Revaz Harchelava4Denis Mazurenko5Christina Kosmala6Zhamshid Okhunov7Sergei Petrov8Department of Urology, Pavlov First Saint Petersburg State Medical UniversityDepartment of Urology, Pavlov First Saint Petersburg State Medical UniversityDepartment of Urology, State University of Medicine and DentistryInstitute for Urology and Reproductive Health, Sechenov UniversityInstitute for Urology and Reproductive Health, Sechenov UniversityDepartment of Urology, Ilyinskaya HospitalDepartment of Urology, University of CaliforniaDepartment of Urology, University of CaliforniaDepartment of Urology, Pavlov First Saint Petersburg State Medical UniversityAbstract Background Approximately 80% of patients with indwelling ureteral stents experience stent related symptoms (SRS). We believe SRS can be reduced through altering the composition of ureteral stents to a less firm material. Therefore, we aim to compare modern silicone and polyurethane ureteral stents in terms of SRS intensity and safety. Methods From June 2018 to October 2018, patients from two distinct clinical centers were prospectively enrolled in the study and stratified (non-randomly) into either control group A, patients who received polyurethane stents (Rüsch, Teleflex), or experimental group B, patients who received silicone stents (Cook Medical). Each participant completed a survey 1 h after stent insertion, in the middle of the stent dwelling period, and before stent removal or ureteroscopy noting body pain and overactive bladder via the visual analog scale pain (VASP) and overactive bladder (OAB) awareness tool, respectively. Additionally, successfulness of stent placement, hematuria, number of unplanned visits, and stent encrustation rates were assessed within each group. Results A total of 50 patients participated in the study, control group A consisted of 20 patients and experimental group B consisted of 30 patients. Participants in group B, silicone ureteral stents, demonstrated significantly lower mean values of VASP 2 weeks prior to stent removal and promptly before stent removal (p = 0.023 and p = 0.014, respectively). No other comparisons between the two groups were statistically significant. Conclusions Compared to polyurethane ureteral stents, silicone ureteral stents are associated with lower body pain intensity assessed by VASP 2 weeks before stent removal and at the time of stent removal. Trial registration Current Controlled Trials NCT04000178. Retrospectively registered on June 26, 2019.https://doi.org/10.1186/s12894-020-0577-yUreteral stentSiliconePolyurethaneStent-related symptomsQuality of life
spellingShingle Nariman Gadzhiev
Dmitry Gorelov
Vigen Malkhasyan
Gagik Akopyan
Revaz Harchelava
Denis Mazurenko
Christina Kosmala
Zhamshid Okhunov
Sergei Petrov
Comparison of silicone versus polyurethane ureteral stents: a prospective controlled study
BMC Urology
Ureteral stent
Silicone
Polyurethane
Stent-related symptoms
Quality of life
title Comparison of silicone versus polyurethane ureteral stents: a prospective controlled study
title_full Comparison of silicone versus polyurethane ureteral stents: a prospective controlled study
title_fullStr Comparison of silicone versus polyurethane ureteral stents: a prospective controlled study
title_full_unstemmed Comparison of silicone versus polyurethane ureteral stents: a prospective controlled study
title_short Comparison of silicone versus polyurethane ureteral stents: a prospective controlled study
title_sort comparison of silicone versus polyurethane ureteral stents a prospective controlled study
topic Ureteral stent
Silicone
Polyurethane
Stent-related symptoms
Quality of life
url https://doi.org/10.1186/s12894-020-0577-y
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