The Risk of Upper Urinary Tract Involvement in Patients With Ketamine-Associated Uropathy

Purpose The aims of this study were to investigate the prevalence of upper tract involvement in ketamine-associated uropathy, and to determine the predictors of hydronephrosis in patients with a history of ketamine abuse. Methods This was a cross-sectional study of a prospective cohort of patients w...

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Main Authors: Chi-Hang Yee, Jeremy Yuen-Chun Teoh, Pui-Tak Lai, Vivian Yee-Fong Leung, Winnie Chiu-Wing Chu, Wai-man Lee, Yuk-Him Tam, Chi-Fai Ng
Format: Article
Language:English
Published: Korean Continence Society 2017-06-01
Series:International Neurourology Journal
Subjects:
Online Access:http://www.einj.org/upload/pdf/inj-1732704-352.pdf
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author Chi-Hang Yee
Jeremy Yuen-Chun Teoh
Pui-Tak Lai
Vivian Yee-Fong Leung
Winnie Chiu-Wing Chu
Wai-man Lee
Yuk-Him Tam
Chi-Fai Ng
author_facet Chi-Hang Yee
Jeremy Yuen-Chun Teoh
Pui-Tak Lai
Vivian Yee-Fong Leung
Winnie Chiu-Wing Chu
Wai-man Lee
Yuk-Him Tam
Chi-Fai Ng
author_sort Chi-Hang Yee
collection DOAJ
description Purpose The aims of this study were to investigate the prevalence of upper tract involvement in ketamine-associated uropathy, and to determine the predictors of hydronephrosis in patients with a history of ketamine abuse. Methods This was a cross-sectional study of a prospective cohort of patients with ketamine-associated uropathy. Data including demographics, pattern of ketamine abuse, pelvic pain and urgency or frequency (PUF) symptom score, uroflowmetry (UFM) parameters, serum renal function, and liver function tests were collected. Upon consultation, ultrasonography was performed to assess the function of the urinary system. Results From December 2011 to October 2015, we treated 572 patients with ketamine-associated uropathy. Of these patients, 207 (36.2%) had managed to achieve abstinence at the time of their first consultation. Ninety-six patients (16.8%) in the cohort were found to have hydronephrosis on ultrasonography. Univariate analysis identified age, duration of ketamine abuse, PUF symptom score, voided volume on UFM, serum creatinine levels >100 μmol/L, and an abnormal serum liver enzyme profile as factors associated with hydronephrosis. Logistic regression revealed the following parameters to be statistically related to hydronephrosis: age (adjusted odds ratio [OR], 1.090; 95% confidence interval [CI], 1.020–1.166; P=0.012), functional bladder capacity (adjusted OR, 0.997; 95% CI, 0.995–0.999; P=0.029), serum creatinine >100 μmol/L (adjusted OR, 3.107; 95% CI, 1.238–7.794; P=0.016, and an abnormal serum liver enzyme profile (adjusted OR, 1.967; 95% CI, 1.213–3.187; P=0.006). Conclusions Ketamine-associated uropathy can involve the upper urinary tract. Patient demographics as well as investigations of UFM, renal function tests, and liver function tests may allow us to identify at-risk patients.
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spelling doaj.art-11f069aadf5348ddb4a378e62dd36e3c2022-12-21T23:18:13ZengKorean Continence SocietyInternational Neurourology Journal2093-47772093-69312017-06-0121212813210.5213/inj.1732704.352672The Risk of Upper Urinary Tract Involvement in Patients With Ketamine-Associated UropathyChi-Hang Yee0Jeremy Yuen-Chun Teoh1Pui-Tak Lai2Vivian Yee-Fong Leung3Winnie Chiu-Wing Chu4Wai-man Lee5Yuk-Him Tam6Chi-Fai Ng7 Prince of Wales Hospital, SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong Prince of Wales Hospital, SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong Prince of Wales Hospital, SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong Department of Imaging and Interventional Radiology, Prince of Wales Hospital. Hong Kong Department of Imaging and Interventional Radiology, Prince of Wales Hospital, The Chinese University of Hong Kong. Hong Kong Prince of Wales Hospital, SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong Kong Prince of Wales Hospital, Department of Surgery, The Chinese University of Hong Kong. Hong Kong Prince of Wales Hospital, SH Ho Urology Centre, Department of Surgery, The Chinese University of Hong Kong, Hong KongPurpose The aims of this study were to investigate the prevalence of upper tract involvement in ketamine-associated uropathy, and to determine the predictors of hydronephrosis in patients with a history of ketamine abuse. Methods This was a cross-sectional study of a prospective cohort of patients with ketamine-associated uropathy. Data including demographics, pattern of ketamine abuse, pelvic pain and urgency or frequency (PUF) symptom score, uroflowmetry (UFM) parameters, serum renal function, and liver function tests were collected. Upon consultation, ultrasonography was performed to assess the function of the urinary system. Results From December 2011 to October 2015, we treated 572 patients with ketamine-associated uropathy. Of these patients, 207 (36.2%) had managed to achieve abstinence at the time of their first consultation. Ninety-six patients (16.8%) in the cohort were found to have hydronephrosis on ultrasonography. Univariate analysis identified age, duration of ketamine abuse, PUF symptom score, voided volume on UFM, serum creatinine levels >100 μmol/L, and an abnormal serum liver enzyme profile as factors associated with hydronephrosis. Logistic regression revealed the following parameters to be statistically related to hydronephrosis: age (adjusted odds ratio [OR], 1.090; 95% confidence interval [CI], 1.020–1.166; P=0.012), functional bladder capacity (adjusted OR, 0.997; 95% CI, 0.995–0.999; P=0.029), serum creatinine >100 μmol/L (adjusted OR, 3.107; 95% CI, 1.238–7.794; P=0.016, and an abnormal serum liver enzyme profile (adjusted OR, 1.967; 95% CI, 1.213–3.187; P=0.006). Conclusions Ketamine-associated uropathy can involve the upper urinary tract. Patient demographics as well as investigations of UFM, renal function tests, and liver function tests may allow us to identify at-risk patients.http://www.einj.org/upload/pdf/inj-1732704-352.pdfCystitisHydronephrosisKetamineLower Urinary Tract SymptomsUrination Disorders
spellingShingle Chi-Hang Yee
Jeremy Yuen-Chun Teoh
Pui-Tak Lai
Vivian Yee-Fong Leung
Winnie Chiu-Wing Chu
Wai-man Lee
Yuk-Him Tam
Chi-Fai Ng
The Risk of Upper Urinary Tract Involvement in Patients With Ketamine-Associated Uropathy
International Neurourology Journal
Cystitis
Hydronephrosis
Ketamine
Lower Urinary Tract Symptoms
Urination Disorders
title The Risk of Upper Urinary Tract Involvement in Patients With Ketamine-Associated Uropathy
title_full The Risk of Upper Urinary Tract Involvement in Patients With Ketamine-Associated Uropathy
title_fullStr The Risk of Upper Urinary Tract Involvement in Patients With Ketamine-Associated Uropathy
title_full_unstemmed The Risk of Upper Urinary Tract Involvement in Patients With Ketamine-Associated Uropathy
title_short The Risk of Upper Urinary Tract Involvement in Patients With Ketamine-Associated Uropathy
title_sort risk of upper urinary tract involvement in patients with ketamine associated uropathy
topic Cystitis
Hydronephrosis
Ketamine
Lower Urinary Tract Symptoms
Urination Disorders
url http://www.einj.org/upload/pdf/inj-1732704-352.pdf
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