The Experts below are selected from a list of 219 Experts worldwide ranked by ideXlab platform
Serena Schulz - One of the best experts on this subject based on the ideXlab platform.
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Urine flow rates and Residual Urine volumes in urogynecology patients.
International Urogynecology Journal, 1999Co-Authors: Bernard T Haylen, M I Frazer, Serena SchulzAbstract:Two hundred and fifty consecutive women referred because of symptoms of lower urinary tract dysfunction underwent a full clinical and urodynamic assessment. Their Urine flow rates and Residual Urine volumes were analyzed. The Urine flow rates of the urogynecology patients were found to be significantly less than those of an asymptomatic population. There were significant declines in Urine flow rates in the presence of a previous hysterectomy and with increasing grades of prolapse, particularly uterine prolapse, cystocele and enterocele. Unlike the normal female population, there was also deterioration with increasing parity and age, the latter largely due to the increasing incidence of hysterectomy and prolapse with age. The 10th centile of the Liverpool Nomogram for the maximum Urine flow rate was found to be the most useful discriminant for a final urodynamic diagnosis of voiding difficulties. Most urogynecology patients have no or small Residual Urine volumes, 74%
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Urine flow rates and Residual Urine volumes in urogynecology patients
International Urogynecology Journal, 1999Co-Authors: Bernard T Haylen, M I Frazer, Serena SchulzAbstract:Two hundred and fifty consecutive women referred because of symptoms of lower urinary tract dysfunction underwent a full clinical and urodynamic assessment. Their Urine flow rates and Residual Urine volumes were analyzed. The Urine flow rates of the urogynecology patients were found to be significantly less than those of an asymptomatic population. There were significant declines in Urine flow rates in the presence of a previous hysterectomy and with increasing grades of prolapse, particularly uterine prolapse, cystocele and enterocele. Unlike the normal female population, there was also deterioration with increasing parity and age, the latter largely due to the increasing incidence of hysterectomy and prolapse with age. The 10th centile of the Liverpool Nomogram for the maximum Urine flow rate was found to be the most useful discriminant for a final urodynamic diagnosis of voiding difficulties. Most urogynecology patients have no or small Residual Urine volumes, 74% <10 ml and 81% <30 ml (vs 95% <30 ml in asymptomatic women). In urogynecology patients Residuals were larger where there had been a prior hysterectomy or with grade 2 or higher uterine prolapse, cystocele and enterocele. Mean Residual was 14.8 ml (vs 4.8 ml in asymptomatic women). These data indicate a higher incidence of voiding difficulties (abnormally slow Urine flow (under 10th centile) and/or abnormally high Residual Urine volume (over 30 ml) in urogynecology patients, particularly those with higher grades of prolapse and with prior hysterectomy.
Friederike Kendel - One of the best experts on this subject based on the ideXlab platform.
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post void Residual Urine as a predictor of urinary tract infection is there a cutoff value in asymptomatic men
The Journal of Urology, 2009Co-Authors: S Brookmanamissah, B Hoschke, Christian Gilfrich, K P Braun, Friederike KendelAbstract:Purpose: Post-void Residual Urine can lead to various complications, including urinary tract infection. Recently investigators calculated that a cutoff value of 180 ml has considerably high sensitivity and specificity for significant bacteriuria in asymptomatic men. We determined the association between post-void Residual Urine volume and urinary tract infection, and validated the suggested 180 ml cutoff in asymptomatic men.Materials and Methods: In a prospective study we analyzed certain criteria in 225 asymptomatic male patients, including prostate specific antigen, prostate volume, International Prostate Symptom Score, peak Urine flow rate, Urine culture results and post-void Residual Urine volume using transabdominal ultrasound. Using ROC analysis a cutoff predicting bacteriuria was calculated. Different cutoff values were validated.Results: Of the study group 60% were able to completely empty the bladder and had a post-void Residual Urine volume of 10 ml or less. However, in 31% of the study group ur...
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Post-Void Residual Urine as a Predictor of Urinary Tract Infection—Is There a Cutoff Value in Asymptomatic Men?
The Journal of Urology, 2009Co-Authors: S. Brookman-amissah, B Hoschke, Christian Gilfrich, K P Braun, Friederike KendelAbstract:Purpose: Post-void Residual Urine can lead to various complications, including urinary tract infection. Recently investigators calculated that a cutoff value of 180 ml has considerably high sensitivity and specificity for significant bacteriuria in asymptomatic men. We determined the association between post-void Residual Urine volume and urinary tract infection, and validated the suggested 180 ml cutoff in asymptomatic men.Materials and Methods: In a prospective study we analyzed certain criteria in 225 asymptomatic male patients, including prostate specific antigen, prostate volume, International Prostate Symptom Score, peak Urine flow rate, Urine culture results and post-void Residual Urine volume using transabdominal ultrasound. Using ROC analysis a cutoff predicting bacteriuria was calculated. Different cutoff values were validated.Results: Of the study group 60% were able to completely empty the bladder and had a post-void Residual Urine volume of 10 ml or less. However, in 31% of the study group ur...
Bernard T Haylen - One of the best experts on this subject based on the ideXlab platform.
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Urine flow rates and Residual Urine volumes in urogynecology patients.
International Urogynecology Journal, 1999Co-Authors: Bernard T Haylen, M I Frazer, Serena SchulzAbstract:Two hundred and fifty consecutive women referred because of symptoms of lower urinary tract dysfunction underwent a full clinical and urodynamic assessment. Their Urine flow rates and Residual Urine volumes were analyzed. The Urine flow rates of the urogynecology patients were found to be significantly less than those of an asymptomatic population. There were significant declines in Urine flow rates in the presence of a previous hysterectomy and with increasing grades of prolapse, particularly uterine prolapse, cystocele and enterocele. Unlike the normal female population, there was also deterioration with increasing parity and age, the latter largely due to the increasing incidence of hysterectomy and prolapse with age. The 10th centile of the Liverpool Nomogram for the maximum Urine flow rate was found to be the most useful discriminant for a final urodynamic diagnosis of voiding difficulties. Most urogynecology patients have no or small Residual Urine volumes, 74%
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Urine flow rates and Residual Urine volumes in urogynecology patients
International Urogynecology Journal, 1999Co-Authors: Bernard T Haylen, M I Frazer, Serena SchulzAbstract:Two hundred and fifty consecutive women referred because of symptoms of lower urinary tract dysfunction underwent a full clinical and urodynamic assessment. Their Urine flow rates and Residual Urine volumes were analyzed. The Urine flow rates of the urogynecology patients were found to be significantly less than those of an asymptomatic population. There were significant declines in Urine flow rates in the presence of a previous hysterectomy and with increasing grades of prolapse, particularly uterine prolapse, cystocele and enterocele. Unlike the normal female population, there was also deterioration with increasing parity and age, the latter largely due to the increasing incidence of hysterectomy and prolapse with age. The 10th centile of the Liverpool Nomogram for the maximum Urine flow rate was found to be the most useful discriminant for a final urodynamic diagnosis of voiding difficulties. Most urogynecology patients have no or small Residual Urine volumes, 74% <10 ml and 81% <30 ml (vs 95% <30 ml in asymptomatic women). In urogynecology patients Residuals were larger where there had been a prior hysterectomy or with grade 2 or higher uterine prolapse, cystocele and enterocele. Mean Residual was 14.8 ml (vs 4.8 ml in asymptomatic women). These data indicate a higher incidence of voiding difficulties (abnormally slow Urine flow (under 10th centile) and/or abnormally high Residual Urine volume (over 30 ml) in urogynecology patients, particularly those with higher grades of prolapse and with prior hysterectomy.
Mohammad Reza Safarinejad - One of the best experts on this subject based on the ideXlab platform.
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accuracy of Residual Urine measurement in men comparison between real time ultrasonography and catheterization
The Journal of Urology, 1997Co-Authors: Nasser Simforoosh, Farid Dadkhah, Seyed Yousef Hosseini, Majid Ali Asgari, A Nasseri, Mohammad Reza SafarinejadAbstract:AbstractPurpose: The practical value of ultrasonography as a rapid means to determine accurately Residual Urine volume was assessed.Materials and Methods: Transverse and sagittal bladder diameters, as well as areas from longitudinal and transverse images, were measured with real-time ultrasonography in 324 men immediately after voiding. Calculated bladder volumes using measured diameters and areas for each of 11 formulas in the literature were compared to the corresponding measured total Residual Urine volumes.Results: The lower limit of ultrasonographic visualization of Urine in bladder was approximately 48 ml. No correlation existed between ultrasound calculated bladder volumes and measured Residual Urine for any of the 11 formulas.Conclusions: Ultrasonography cannot rapidly measure bladder volumes accurately to date. Catheterization remains the most accurate method of assessing post-void Residuals but in many cases it may not be the best approach to patient care.
Stephen Shei-dei Yang - One of the best experts on this subject based on the ideXlab platform.
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variability related factors and normal reference value of post void Residual Urine in healthy kindergarteners
The Journal of Urology, 2009Co-Authors: Shang-jen Chang, Stephen Shei-dei YangAbstract:Purpose: We report intra-individual variability, related factors and the normal reference value of post-void Residual Urine in children.Materials and Methods: Healthy kindergarteners were enrolled for the evaluation of post-void Residual Urine, which was assessed by ultrasound within 5 minutes after voiding when voided volume was greater than 50 ml. Bladder over distention was arbitrarily defined as a bladder capacity (voided volume plus post-void Residual Urine) of 115% or greater of expected bladder capacity. The Pearson correlation method was used to evaluate the correlation between post-void Residual Urine and related factors.Results: More than 1 post-void Residual Urine value was recorded in 219 children with a mean ± SD age of 4.9 ± 0.9 years. Mean post-void Residual Urine was 12.2 ± 20.3 ml (median 5.5). The correlation for consecutive post-void Residual Urine was low in all children and negligible in the 129 without bladder over distention (r = 0.34 and 0.13, respectively). Repeat post-void residu...
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Variability, related factors and normal reference value of post-void Residual Urine in healthy kindergarteners.
The Journal of urology, 2009Co-Authors: Shang-jen Chang, Stephen Shei-dei YangAbstract:We report intra-individual variability, related factors and the normal reference value of post-void Residual Urine in children. Healthy kindergarteners were enrolled for the evaluation of post-void Residual Urine, which was assessed by ultrasound within 5 minutes after voiding when voided volume was greater than 50 ml. Bladder over distention was arbitrarily defined as a bladder capacity (voided volume plus post-void Residual Urine) of 115% or greater of expected bladder capacity. The Pearson correlation method was used to evaluate the correlation between post-void Residual Urine and related factors. More than 1 post-void Residual Urine value was recorded in 219 children with a mean +/- SD age of 4.9 +/- 0.9 years. Mean post-void Residual Urine was 12.2 +/- 20.3 ml (median 5.5). The correlation for consecutive post-void Residual Urine was low in all children and negligible in the 129 without bladder over distention (r = 0.34 and 0.13, respectively). Repeat post-void Residual Urine greater than 20 ml and greater than 10% bladder capacity was observed in 2.3% and 7.8% of children, respectively, without bladder over distention. Post-void Residual Urine increased as bladder capacity increased (r = 0.38, p <0.01). Excluding those with bladder over distention, post-void Residual Urine decreased as the age of the child increased. Children who drank more fluids before voiding had a higher rate of bladder over distention for each micturition than those who drank regularly (13.8% vs 4.9%, p = 0.04). Because of the significant intra-individual variability of post-void Residual Urine, a single post-void Residual Urine test is not reliable for assessing pediatric voiding function. Two post-void Residual Urine tests are recommended. Post-void Residual Urine is affected by bladder over distention, age of the child and possibly extra hydration before assessment. Abnormal post-void Residual Urine could be defined as post-void Residual Urine greater than 20 ml, rather than as greater than 10% bladder capacity, on repeat micturitions without bladder over distention.