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Urinary Tract Infection II: Pathophysiology

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The pathophysiology of urinary tract infections (UTIs) encompasses several progressive stages, beginning with bacterial colonization and culminating in potential systemic complications if untreated. UTIs are primarily initiated by bacteria, such as Escherichia coli, which often originate from the gastrointestinal tract and migrate to the urinary system through the periurethral area. This migration can occur via several routes, including improper hygiene practices, sexual activity, or...

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Related Experiment Video

Updated: Apr 14, 2026

An In Vitro Bladder Model of Catheter-Associated Urinary Tract Infection

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Iatrogenic foreign body in the urinary bladder.

Safdar Shah¹, Farhan Qureshi¹, Sain Rakhio¹

¹Department of Urology, Sheikh Zayed Medical College Hospital, Rahim Yar Khan.

Journal of the College of Physicians and Surgeons--Pakistan : JCPSP

|April 23, 2015

Summary

This summary is machine-generated.

A metallic resectoscope cutting loop piece was found in a patient's urinary bladder, causing pain and urinary retention. The foreign body was successfully removed using cystourethroscopy.

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Area of Science:

Urology
Medical Device Technology

Background:

Urinary bladder foreign bodies can cause significant lower urinary tract symptoms.
Surgical instruments can inadvertently fracture during procedures, posing risks.

Observation:

A 60-year-old male presented with suprapubic pain, dysuria, perineal pain, and acute urinary retention.
Abdominal ultrasound and pelvic X-ray revealed a metallic needle within the urinary bladder.

Findings:

The foreign body was identified as a fractured metallic piece from a resectoscope cutting loop.
The metallic fragment was successfully retrieved via cystourethroscopy.

Implications:

Highlights the importance of careful surgical technique during transurethral resections.
Emphasizes the utility of imaging and cystourethroscopy in diagnosing and managing intravesical foreign bodies.