Applicability of a Disposable Home Urinary Flow Measuring Device as a Diagnostic Tool in the Management of Males with Lower Urinary Tract Symptoms

Heesakkers, John; Farag, Fawzy; Moore, Katie; Radziszewski, Piotr; Lucas, Malcolm G

doi:10.1159/000338907

Cited by 11 publications

(11 citation statements)

References 28 publications

(12 reference statements)

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“…The findings from this study may be used to promote the development of various devices in different formats. The disposable home device proposed by Heesakkers et al [ 20 ] was used to measure urinary symptoms in male patients with LUTS. They developed and analyzed the device by focusing on Q max and reported the findings from the analysis after using the device on 59 male patients.…”

Section: Discussionmentioning

confidence: 99%

Classification of Bladder Emptying Patterns by LSTM Neural Network Trained Using Acoustic Signatures

Jin

Chung

Kim

et al. 2021

Sensors

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(1) Background: Non-invasive uroflowmetry is used in clinical practice for diagnosing lower urinary tract symptoms (LUTS) and the health status of a patient. To establish a smart system for measuring the flowrate during urination without any temporospatial constraints for patients with a urinary disorder, the acoustic signatures from the uroflow of patients being treated for LUTS at a tertiary hospital were utilized. (2) Methods: Uroflowmetry data were collected for construction and verification of a long short-term memory (LSTM) deep-learning algorithm. The initial sample size comprised 34 patients; 27 patients were included in the final analysis. Uroflow sounds generated from flow impacts on a structure were analyzed by loudness and roughness parameters. (3) Results: A similar signal pattern to the clinical urological measurements was observed and applied for health diagnosis. (4) Conclusions: Consistent flowrate values were obtained by applying the uroflow sound samples from the randomly selected patients to the constructed model for validation. The flowrate predicted using the acoustic signature accurately demonstrated actual physical characteristics. This could be used for developing a new smart flowmetry device applicable in everyday life with minimal constraints from settings and enable remote diagnosis of urinary system diseases by objective continuous measurements of bladder emptying function.

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Section: Discussionmentioning

confidence: 99%

Classification of Bladder Emptying Patterns by LSTM Neural Network Trained Using Acoustic Signatures

Jin

Chung

Kim

et al. 2021

Sensors

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“…Q Single (AstraTech AB, Mölndal, Sweden) was developed as a single-use UFM device for home use in order to provide simple Qmax and Vvoid measurements [30]. As illustrated in Fig.…”

Section: Home Uroflowmetersmentioning

confidence: 99%

“…(A) Uflow Meter (MDTi, Wolverhampton, UK) [20], (B) Peakometer [20], (C) P-flow meter [20], (D) Q Single device (AstraTech AB, Mölndal, Sweden) [30], and (E) Da Capo [20]. …”

Section: Figmentioning

confidence: 99%

Noninvasive Medical Tools for Evaluating Voiding Pattern in Real Life

2017

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Voiding dysfunction is a common disease that contributes to a lower quality of life and has an increased prevalence in the elderly population. Noninvasive and objective methods such as uroflowmetry (UFM) and voiding diaries (VDs) are essential for exact diagnosis and effective treatment of this condition because patients with different causes of voiding dysfunction can complain of the same lower urinary tract symptoms. Further, different treatment options can be determined based on the diagnosis made from these symptoms. In order to improve the quality of UFM and VDs and to provide a convenient testing environment, several advances have been made by previous investigators. In this study, we investigate the history and technological mechanisms of UFM and VDs. We also aim to review UFM from the viewpoint of clinical and at-home uses, including the recently proposed toilet-shaped UFM and electronic VDs.

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“…In addition, it has been reported that measurement at home is necessary. [2][3][4][5][6][7] However, this mode of urine measurement is not very popular in homes because, in Japan, homebased urine flow measurement cannot be claimed as an insured mode of medical treatment; its value for home use is not well known. Many urine flowmeters often store urine in containers.…”

Section: Introductionmentioning

confidence: 99%

“…Hospitals tend to use a fixed type of uroflowmeter, which is often installed in the toilet; in this context, it may not be possible to obtain accurate measurements because of tension during examinations. In addition, it has been reported that measurement at home is necessary 2‐7 . However, this mode of urine measurement is not very popular in homes because, in Japan, home‐based urine flow measurement cannot be claimed as an insured mode of medical treatment; its value for home use is not well known.…”

Section: Introductionmentioning

confidence: 99%

Freeflow: The novel portable uroflowmeter can help to realize practical urinary conditions at home

Kato¹,

Watanabe²,

Yamasue

2022

LUTS

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Objectives To evaluate the effectiveness of a novel portable urine flowmeter, Freeflow, for examining the actual state of urination at home. Methods Forty‐three patients with benign prostatic hyperplasia used the Freeflow uroflowmeter in the hospital and at home without accumulating urine. We created a nomogram for each patient's urine volume and maximal urinary flow rate (Qmax). Furthermore, we investigated the actual state of each patient's urination. We also investigated the differences in the micturition status between daytime and nighttime. Results Of the 43 patients, 40 were able to provide the necessary data in the hospital, and all patients provided data measured at home. The trial period of the home assessment was 2‐7 days. Regarding the average urine volume, no significant difference was observed between in‐hospital and at‐home patients; however, Qmax and mean flow rate (Qave) were significantly higher at home. The average coefficient of variation was very large. The relationship between daytime and nighttime was observed in 30 patients; urine volume increased significantly at nighttime; however, no significant difference was observed in Qmax and Qave. The nomogram for several days and a completed urinary diary helped to display daytime and nighttime urination characteristics. Conclusions Freeflow, the newly developed uroflowmeter, enabled us to determine the fluctuations in the measurements recorded at home and the differences between daytime and nighttime. Thus, creating a nomogram for objectively examining nighttime urination status and utilizing a urination diary was found to be effective for providing correct diagnosis and treatment of lower urinary tract symptoms.

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Applicability of a Disposable Home Urinary Flow Measuring Device as a Diagnostic Tool in the Management of Males with Lower Urinary Tract Symptoms

Cited by 11 publications

References 28 publications

Classification of Bladder Emptying Patterns by LSTM Neural Network Trained Using Acoustic Signatures

Classification of Bladder Emptying Patterns by LSTM Neural Network Trained Using Acoustic Signatures

Noninvasive Medical Tools for Evaluating Voiding Pattern in Real Life

Freeflow: The novel portable uroflowmeter can help to realize practical urinary conditions at home

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