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Related Concept Videos

Acute Pyelonephritis I: Introduction01:27

Acute Pyelonephritis I: Introduction

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Pyelonephritis is a bacterial infection that primarily affects the renal parenchyma and collecting system, including the renal pelvis, tubules, and interstitial tissue of one or both kidneys. It can be classified as either acute—a sudden, severe infection—or chronic, which refers to long-term or recurrent kidney infections.The primary cause of acute pyelonephritis (APN) is bacterial infection, with Escherichia coli accounting for approximately 70-80% of cases. Other bacteria, such...
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Acute Pyelonephritis II: Diagnostic Studies and Management01:28

Acute Pyelonephritis II: Diagnostic Studies and Management

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Introduction:For diagnosing acute pyelonephritis, a comprehensive patient history is collected to identify symptoms such as dysuria, frequent or urgent urination, flank pain, or costovertebral angle (CVA) tenderness that may suggest a kidney infection.Physical ExaminationDuring the physical examination, CVA tenderness is assessed. This involves gentle percussion over the costovertebral angle, where tenderness often indicates a kidney infection.Diagnostic TestsUrinalysis: Used to identify white...
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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...
205
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...
499
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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Aerococcus urinae Aortitis: A Case Report.

Aakash Varun Chhibber1, Sharmini Muttaiyah1, Andrew A Hill2

  • 1Department of Microbiology, LabPLUS, Auckland District Health Board, Auckland, New Zealand.

Open Forum Infectious Diseases
|December 19, 2019
PubMed
Summary
This summary is machine-generated.

Aerococcus urinae, a urinary pathogen, can cause severe invasive infections like abdominal aortitis with aneurysm. This case highlights the importance of recognizing A. urinae as a significant pathogen beyond urinary tract infections.

Keywords:
Aerococcus urinaeabdominal aortitisendovascular infectioninfective infrarenal aortic aneurysm

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Area of Science:

  • Infectious Diseases
  • Bacteriology
  • Vascular Surgery

Background:

  • Aerococcus urinae is an emerging Gram-positive urinary pathogen.
  • Mass spectrometry has increased its recognition.
  • A. urinae can cause severe invasive infections.

Observation:

  • A 63-year-old male with recurrent urinary tract infections and recent A. urinae bacteremia presented with back pain.
  • Radiological and surgical findings indicated infective infrarenal aortitis with aneurysm.
  • A. urinae was isolated from excised aortic tissue.

Findings:

  • The patient underwent successful surgical debridement and aortic reconstruction.
  • A 4-week course of intravenous antimicrobial therapy was completed.
  • A. urinae was confirmed as the causative agent of the aortitis.

Implications:

  • A. urinae is capable of causing severe endovascular infections.
  • This case underscores the need to consider A. urinae in invasive infections, particularly in patients with a history of urinary tract infections or bacteremia.
  • Prompt diagnosis and treatment are crucial for managing A. urinae-related aortitis.