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Related Concept Videos

Urinary Tract Infection II: Pathophysiology01:25

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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Urinary Tract Infection I: Introduction01:26

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Urinary tract infections (UTIs) impact various parts of the urinary system, including the kidneys, ureters, bladder, and urethra. These infections are generally bacterial, with Escherichia coli being the most common causative agent, often originating from the gastrointestinal tract. However, other bacteria, such as Staphylococcus saprophyticus, Klebsiella pneumoniae, and Proteus mirabilis, are also known to cause UTIs. The type, location, and underlying complexity of the UTI guide both...
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Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care01:30

Urinary Tract Infection III: Diagnostic Studies and Interprofessional Care

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A healthcare provider can diagnose a urinary tract infection (UTI) through several methods:Medical History and Symptoms: The provider will take a detailed medical history and ask about symptoms such as frequent urination, burning sensation during urination, and lower abdominal pain.Urinalysis: A clean-catch urine sample is collected in a sterile container and tested for the presence of bacteria, white blood cells (leukocytes), nitrites, blood, and protein. The presence of leukocytes and...
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Microbiota of the Urogenital Tract01:28

Microbiota of the Urogenital Tract

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The human urogenital system, once thought to be sterile in healthy individuals, is now recognized as a complex microbial habitat. Advancements in molecular sequencing techniques have revealed that even in healthy adults, the kidneys and bladder harbor microbial populations similar to those found in the distal urethra, albeit in much lower abundance. These resident microorganisms, while generally innocuous, can become opportunistic pathogens under conditions that alter the urogenital...
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Urine Studies II: Urine Culture and Sensitivity Test01:26

Urine Studies II: Urine Culture and Sensitivity Test

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A urine culture and sensitivity test is a diagnostic procedure used to identify urinary tract bacterial infections and determine the most effective antibiotics for treatment. This test is generally preferred when a patient shows manifestations of a urinary tract infection, such as frequent or painful urination, cloudy or foul-smelling urine, or lower abdominal pain.Purpose of the TestThe primary goals of a urine culture and sensitivity test are to:Determine the specific bacteria causing the...
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Urinary Tract Infection IV: Nursing Management01:17

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In managing urinary tract infections (UTIs) in nursing, a comprehensive assessment is essential. Begin by gathering subjective data, such as the patient’s complaints of dysuria (painful urination), urinary frequency, urgency, suprapubic pain, and any lower abdominal discomfort. This information can be complemented by questions regarding previous UTIs, sexual activity, and personal hygiene practices, which can provide insight into risk factors. Objective assessment should focus on signs...
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Recurrent Escherichia coli Urinary Tract Infection Triggered by Gardnerella vaginalis Bladder Exposure in Mice
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Is Streptococcus bovis a urinary pathogen?

M Matesanz1, D Rubal, I Iñiguez

  • 1Department of Internal Medicine, Hospital Lucus Augusti, Lugo, Spain.

European Journal of Clinical Microbiology & Infectious Diseases : Official Publication of the European Society of Clinical Microbiology
|November 23, 2014
PubMed
Summary
This summary is machine-generated.

The Streptococcus bovis group (SBG) can cause urinary tract infections and sepsis, particularly S. pasteurianus. SBG bacteriuria may indicate serious underlying conditions like endocarditis or colorectal cancer.

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Area of Science:

  • Microbiology
  • Infectious Diseases
  • Urology

Background:

  • The Streptococcus bovis group (SBG) is linked to various human infections.
  • Its role as a urinary pathogen is not well-established.
  • SBG has associations with bacteremia, endocarditis, and colorectal cancer.

Purpose of the Study:

  • To determine the incidence and clinical significance of SBG bacteriuria.
  • To investigate the spectrum of infections caused by SBG in the urinary tract.

Main Methods:

  • Retrospective analysis of adult patients with SBG bacteriuria (1995-2012).
  • Data collected on patient demographics, underlying conditions, and clinical presentation.
  • Microbiological analysis of SBG isolates and antimicrobial susceptibility testing.

Main Results:

  • SBG was isolated in 153 adult patients (mean age 67, 80% female).
  • Common comorbidities included urologic disease (37%), diabetes (27%), and neurologic disease (25%).
  • 45% had asymptomatic bacteriuria, 35% lower UTI, 20% upper UTI; 9% had concurrent bacteremia.
  • S. gallolyticus subsp. pasteurianus was the most common isolate (72%).
  • High susceptibility to penicillin, nitrofurantoin (98%), and fosfomycin (77%).

Conclusions:

  • SBG bacteriuria, though uncommon, warrants attention and should not be dismissed as contamination.
  • S. pasteurianus can cause UTIs and sepsis.
  • Isolation of S. gallolyticus from urine may signal underlying endocarditis or colorectal cancer.