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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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Procedures for Kidney StonesMedical intervention is necessary when kidney stones or renal calculi are too large to pass spontaneously (typically greater than 5 millimeters) when stones are accompanied by symptomatic infection (such as fever or pyelonephritis), when they impair kidney function, or when they cause persistent symptoms like severe pain, nausea, or urinary retention. Additionally, patients with only one kidney or those who cannot be treated with medical management also require...
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Predictive Value of Voiding Efficiency After Active Void Trial in Men Undergoing BPH Surgery.

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Voiding efficiency after BPH surgery predicts acute urinary retention. Patients with less than 50% voiding efficiency face higher retention risk, especially with smaller prostates.

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Area of Science:

  • Urology
  • Surgical Outcomes
  • Patient Monitoring

Background:

  • Benign prostatic hyperplasia (BPH) surgery can lead to post-discharge acute urinary retention (AUR).
  • Predictive markers for AUR are crucial for optimizing patient management after BPH procedures.

Purpose of the Study:

  • To evaluate the predictive value of post-operative voiding efficiency (VE) for AUR after BPH surgery.
  • To identify patient subgroups at higher risk for AUR post-discharge.

Main Methods:

  • Prospective observational cohort study of 188 men undergoing transurethral resection of prostate (TURP) or Holmium enucleation of prostate (HoLEP).
  • Post-operative day one voiding trials were used to calculate VE.
  • Multivariable logistic regression identified predictors of AUR.

Main Results:

  • 10% of patients experienced AUR post-discharge.
  • Lower VE (<50%) was associated with a 3.8-fold increased risk of AUR (95% CI 1.1-12.8).
  • Larger pre-operative prostate size correlated with a reduced risk of AUR (aOR 0.8, 95% CI 0.6-0.9).

Conclusions:

  • Post-operative VE is a valuable tool for stratifying AUR risk in BPH surgery patients.
  • Patients with VE <50% and smaller pre-operative prostates (<80g) are at high risk for AUR.