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Uroflowmetry is a non-invasive urodynamic test designed to measure various aspects of urination, including volume, flow rate, and the time to void. This test is crucial for diagnosing and assessing conditions such as bladder outlet obstruction, bladder dysfunction, incomplete bladder emptying, incontinence, and urinary tract blockages caused by benign prostatic hyperplasia (BPH) and urethral strictures.Pre-Test Instructions:Before a uroflowmetry test, patients are typically advised to drink...
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Rapidly varying flow (RVF) in open channels is characterized by abrupt changes in flow depth over a short distance, with the rate of depth change relative to distance often approaching unity. These flows are inherently complex due to their transient and multi-dimensional nature, making exact analysis difficult. However, approximate solutions using simplified models provide valuable insights into their behavior.Key Features of Rapidly Varying FlowRVF is commonly observed in scenarios involving...
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Related Experiment Video

Updated: Sep 13, 2025

Author Spotlight: Advanced Treatment of Seminal Duct Blockage Employing Endoscopy-Mediated Semen Channel Refluviation
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Predicting poor early voiding pattern after holep using maximum flow rate (Q-max) as an objective outcome.

Abdulmalik Addar1, Adel Arezki2, Tarek Benzouak3,4

  • 1Division of Urology, McGill University, Montreal, Canada. abdulmalik.addar@mail.mcgill.ca.

World Journal of Urology
|July 30, 2025
PubMed
Summary
This summary is machine-generated.

Advanced age, diabetes, and combination BPH therapy predict poor urinary flow after Holmium laser enucleation of the prostate (HoLEP). Identifying these factors aids in tailored patient management for better outcomes.

Keywords:
Benign Prostatic HyperplasiaHolmium Laser Enucleation of the ProstateMaximum Urinary Flow RatePre-operative PredictorsUrologyVoiding Dysfunction

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Area of Science:

  • Urology
  • Surgical Innovation
  • Patient Outcomes

Background:

  • Holmium laser enucleation of the prostate (HoLEP) is a leading treatment for benign prostatic hyperplasia (BPH).
  • Despite HoLEP's efficacy, some patients experience persistent suboptimal voiding post-surgery.
  • Predicting these outcomes is crucial for optimizing patient selection and management.

Purpose of the Study:

  • To identify preoperative predictors of poor voiding patterns after HoLEP.
  • To objectively measure voiding outcomes using maximum urinary flow rate (Q-max).

Main Methods:

  • Retrospective analysis of 1121 patients undergoing HoLEP.
  • Data included demographics, preoperative parameters, and operative details.
  • Poor voiding defined as Q-max < 15 mL/sec at one month; logistic regression used for analysis.

Main Results:

  • Advanced age, diabetes mellitus, and preoperative combination BPH therapy were independently associated with poor postoperative Q-max.
  • Increased enucleated tissue weight showed a protective effect on Q-max.
  • Multivariate analysis confirmed these predictors with statistical significance.

Conclusions:

  • Preoperative factors like advanced age, diabetes, and combination BPH therapy predict suboptimal voiding post-HoLEP.
  • These findings emphasize the importance of individualized preoperative assessments.
  • Tailored management strategies are essential for improving patient outcomes after HoLEP.