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Urodynamic Studies: Uroflowmetry01:19

Urodynamic Studies: Uroflowmetry

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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The lower urinary system consists of the urinary bladder and urethra, which are essential in storing and expelling urine from the body. Together with the internal and external sphincters, these structures work together to regulate urination effectively.Anatomy of the BladderThe urinary bladder is a muscular, stretchable organ behind the pubic bone and in front of the rectum. In females, the bladder is positioned anterior to the vagina and inferior to the uterus, while in males, it is located...
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Ultrasonography of the Adult Male Urinary Tract for Urinary Functional Testing
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Urinary flow patterns in premature males.

Lars Henning Olsen1, Ingrid Grothe, Yazan F Rawashdeh

  • 1Pediatric Urology and Research Unit, Department of Urology, Aarhus University Hospital-Skejby, Aarhus, Denmark.

The Journal of Urology
|April 20, 2010
PubMed
Summary

Urinary flow patterns in premature males were assessed using ultrasound. Findings show a high degree of dyscoordinated urinary flow in these infants, with mixed patterns common.

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Area of Science:

  • Neonatal physiology
  • Pediatric urology
  • Medical ultrasound technology

Background:

  • Assessing urinary function in premature infants is challenging.
  • Understanding voiding dynamics is crucial for infant health.
  • Limited data exists on urinary flow patterns in preterm males.

Purpose of the Study:

  • To evaluate urinary flow patterns in premature males.
  • To utilize ultrasound flow probes for this assessment.
  • To analyze flow curve configuration, maximum flow rate, and voided volume.

Main Methods:

  • Customized ultrasound flow probes were used on 29 premature males (median gestational age 31.3 weeks).
  • Flow data were collected via computer and analyzed for curve shape, flow rate, and volume.
  • Examinations were conducted in the neonatal unit over 4-hour periods.

Main Results:

  • Analysis included 25 boys and 98 voids.
  • Bell-shaped curves occurred in 48%, interrupted in 44%.
  • 59% of flows were dyscoordinated, with mixed coordinated/dyscoordinated patterns observed within individuals.

Conclusions:

  • Urinary flow pattern assessment is feasible in preterm males using ultrasound.
  • A significant degree of urinary flow dyscoordination is prevalent.
  • Individuals often exhibit a mix of coordinated and dyscoordinated voiding patterns.