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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 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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Urinary Bladder01:23

Urinary Bladder

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The urinary bladder is a hollow, muscular sac that temporarily stores urine before it is expelled from the body. It can hold approximately 600 mL of urine prior to micturition. The bladder is retroperitoneal and located behind the pubic symphysis in the pelvic floor.
In males, the bladder is situated in front of the rectum, while in females, it is positioned anterior to the vagina and uterus. The bladder floor contains an inverted triangular area called the trigone, defined by the two ureteric...
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Urinary Tract Infection I: Introduction01:26

Urinary Tract Infection I: Introduction

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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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Nursing Assessment of the Genitourinary System I: Health History01:21

Nursing Assessment of the Genitourinary System I: Health History

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The genitourinary system is critical to maintaining fluid balance, waste elimination, and reproductive function. Nurses play a vital role in assessing this system, beginning with a thorough health history. This process involves gathering patient information, identifying risk factors, and recognizing symptoms of genitourinary disorders. Early detection is vital for timely interventions and management.1. Gathering Patient InformationA complete health history includes the patient’s personal,...
53
Anatomy of the Genitourinary System II: Bladder and Urethra01:19

Anatomy of the Genitourinary System II: Bladder and Urethra

155
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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Urinary Tract Infection in a Small Animal Model: Transurethral Catheterization of Male and Female Mice
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The Urinary Microbiome and Bladder Cancer.

Nassib Abou Heidar1, Tariq A Bhat1, Usma Shabir1

  • 1Department of Urology, Roswell Park Comprehensive Cancer Center, Buffalo, NY 14203, USA.

Life (Basel, Switzerland)
|March 29, 2023
PubMed
Summary

The urinary microbiome, once thought absent, is now linked to bladder cancer development and treatment response. Standardized methods are crucial for future research into this potential biomarker.

Keywords:
BCG therapyTURBTbladder cancercystectomymicrobiome

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Area of Science:

  • Urology
  • Microbiology
  • Oncology

Background:

  • Bladder cancer is a common malignancy, with most patients presenting with non-muscle invasive disease.
  • Standard treatments include transurethral resection of bladder tumor (TURBT) and adjuvant intravesical therapies.
  • The urinary tract is now known to harbor a microbiome, challenging the historical 'sterile urine' paradigm.

Purpose of the Study:

  • To review and critique existing literature on the urinary microbiome's association with bladder cancer.
  • To highlight the potential of the urinary microbiome as a biomarker for risk stratification and treatment response prediction.
  • To identify challenges and future directions in urinary microbiome research.

Main Methods:

  • Review of current scientific literature on the urinary microbiome and bladder cancer.
  • Critique of methodologies used in microbiome studies, including sample collection, processing, and bioinformatics analysis.
  • Synthesis of emerging evidence regarding the role of the urinary microbiome in urothelial carcinogenesis and treatment outcomes.

Main Results:

  • The urinary microbiome is increasingly recognized for its role in various urological conditions.
  • Emerging reports suggest the urinary microbiome influences bladder cancer development, gender disparities, and treatment efficacy.
  • Lack of standardized methodologies currently hinders robust microbiome research.

Conclusions:

  • The urinary microbiome represents a promising area for bladder cancer biomarker development.
  • Standardization of research methods is essential for advancing our understanding of the urinary microbiome's role in bladder cancer.
  • Further research is needed to fully elucidate the urinary microbiome's impact on bladder cancer and its treatment.