Interpretation of uroflowmetry in the paediatric population

Uroflowmetry is a simple, non-invasive examination that should be the first test in the diagnostic process of lower urinary tract disorders in children. It is applicable particularly in the paediatric population where a comprehensive urodynamic examination, involving urinary bladder catheterisatio...

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Main Authors: Magda Rakowska, Katarzyna Jobs, Grzegorz Paruszkiewicz, Anna Jung
Format: Article
Language:English
Published: Medical Communications Sp. z o.o. 2017-03-01
Series:Pediatria i Medycyna Rodzinna
Subjects:
Online Access:http://www.pimr.pl/index.php/issues/2017-vol-13-no-1/interpretation-of-uroflowmetry-in-the-paediatric-population?aid=1023
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author Magda Rakowska
Katarzyna Jobs
Grzegorz Paruszkiewicz
Anna Jung
author_facet Magda Rakowska
Katarzyna Jobs
Grzegorz Paruszkiewicz
Anna Jung
author_sort Magda Rakowska
collection DOAJ
description Uroflowmetry is a simple, non-invasive examination that should be the first test in the diagnostic process of lower urinary tract disorders in children. It is applicable particularly in the paediatric population where a comprehensive urodynamic examination, involving urinary bladder catheterisation, is frequently difficult due to the lack of cooperation with children. It must be remembered that the prerequisite for optimal uroflowmetry is recreating natural conditions of micturition. When interpreting results, one must assess the uroflow curve, which is a resultant of urethral resistance and pressure inside the urinary bladder. That is why the main paediatric disorders that can be suspected after uroflowmetry include a functional or anatomical subcystic barrier and hyperactivity of the detrusor muscle of the urinary bladder. In normal conditions, the uroflow curve resembles a bell. An abnormal curve can be flattened, tower-shaped or irregular, but none of them is pathognomonic for a given urinary pathology. After a preliminary interpretation of the curve, one must assess whether the calculated micturition parameters, such as maximum flow and average flow rates, are within normal ranges. For this purpose, age- and sex-specific nomograms have been created. The final part of uroflowmetry involves the evaluation of post-void residual urine volume. Currently, ultrasound scan is the recommended method. It has been shown that post-void residual urine volume decreases with age and depends upon sex and bladder capacity. It must be emphasised that one abnormal result of uroflowmetry requires re-examination. Moreover, the results should be interpreted in combination with patient’s medical history.
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spelling doaj.art-b99fae630d5746bb830c6a9a63b8f5352022-12-22T02:45:33ZengMedical Communications Sp. z o.o.Pediatria i Medycyna Rodzinna1734-15312451-07422017-03-01131405210.15557/PiMR.2017.0004Interpretation of uroflowmetry in the paediatric populationMagda Rakowska0Katarzyna Jobs1Grzegorz Paruszkiewicz2Anna Jung3Department of Paediatrics, Paediatric Nephrology and Allergology, Military Institute of Medicine, Warsaw, Poland. Head of the Department: Associate Professor Bolesław Kalicki, MD, PhDDepartment of Paediatrics, Paediatric Nephrology and Allergology, Military Institute of Medicine, Warsaw, Poland. Head of the Department: Associate Professor Bolesław Kalicki, MD, PhDMedical Centre for Urodynamic Diagnosis URO-DYN, Warsaw, PolandDepartment of Paediatrics, Paediatric Nephrology and Allergology, Military Institute of Medicine, Warsaw, Poland. Head of the Department: Associate Professor Bolesław Kalicki, MD, PhDUroflowmetry is a simple, non-invasive examination that should be the first test in the diagnostic process of lower urinary tract disorders in children. It is applicable particularly in the paediatric population where a comprehensive urodynamic examination, involving urinary bladder catheterisation, is frequently difficult due to the lack of cooperation with children. It must be remembered that the prerequisite for optimal uroflowmetry is recreating natural conditions of micturition. When interpreting results, one must assess the uroflow curve, which is a resultant of urethral resistance and pressure inside the urinary bladder. That is why the main paediatric disorders that can be suspected after uroflowmetry include a functional or anatomical subcystic barrier and hyperactivity of the detrusor muscle of the urinary bladder. In normal conditions, the uroflow curve resembles a bell. An abnormal curve can be flattened, tower-shaped or irregular, but none of them is pathognomonic for a given urinary pathology. After a preliminary interpretation of the curve, one must assess whether the calculated micturition parameters, such as maximum flow and average flow rates, are within normal ranges. For this purpose, age- and sex-specific nomograms have been created. The final part of uroflowmetry involves the evaluation of post-void residual urine volume. Currently, ultrasound scan is the recommended method. It has been shown that post-void residual urine volume decreases with age and depends upon sex and bladder capacity. It must be emphasised that one abnormal result of uroflowmetry requires re-examination. Moreover, the results should be interpreted in combination with patient’s medical history.http://www.pimr.pl/index.php/issues/2017-vol-13-no-1/interpretation-of-uroflowmetry-in-the-paediatric-population?aid=1023uroflowmetryurethral flowurodynamic examinationuroflow curve
spellingShingle Magda Rakowska
Katarzyna Jobs
Grzegorz Paruszkiewicz
Anna Jung
Interpretation of uroflowmetry in the paediatric population
Pediatria i Medycyna Rodzinna
uroflowmetry
urethral flow
urodynamic examination
uroflow curve
title Interpretation of uroflowmetry in the paediatric population
title_full Interpretation of uroflowmetry in the paediatric population
title_fullStr Interpretation of uroflowmetry in the paediatric population
title_full_unstemmed Interpretation of uroflowmetry in the paediatric population
title_short Interpretation of uroflowmetry in the paediatric population
title_sort interpretation of uroflowmetry in the paediatric population
topic uroflowmetry
urethral flow
urodynamic examination
uroflow curve
url http://www.pimr.pl/index.php/issues/2017-vol-13-no-1/interpretation-of-uroflowmetry-in-the-paediatric-population?aid=1023
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