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Endocarditis II: Clinical Features of Infective Endocarditis01:25

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Endocarditis can present various clinical features depending on the causative organism and the patient's underlying health conditions. Initially, the clinical features of infective endocarditis develop gradually, presenting with nonspecific symptoms that can be easily mistaken for other illnesses.General SymptomsEarly symptoms of infective endocarditis are fever, chills, weakness, malaise, fatigue, and weight loss. These symptoms reflect the systemic nature of the infection and the body's...
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Endocarditis I: Introduction01:25

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Introduction:Endocarditis is the infection of the endocardium, the inner lining of the heart and its valves. When the heart muscle is involved, the condition is termed myocarditis, while an infection of the outer lining is called pericarditis. Infective endocarditis (IE) primarily affects the endocardium, where pathogens adhere to the valves or lining, forming vegetation that can lead to severe complications. Infective endocarditis occurs when microorganisms, usually bacteria from other body...
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Fluid flow analysis is critical in many scientific and engineering disciplines, and two principal approaches are used to describe this flow: the Eulerian and Lagrangian methods. These methods offer different perspectives on monitoring and analyzing the motion of fluids, each with distinct advantages depending on the scenario.
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Endocarditis III: Medical Management01:18

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Infective endocarditis management involves a multifaceted approach encompassing infection prevention, lifestyle modifications, pharmacological therapy, and surgical management.Infection Prevention:Hand Hygiene: Thorough handwashing is crucial to prevent the spread of infection. Hand hygiene should be performed regularly, especially before and after using the restroom.Oral Hygiene: Good oral hygiene is essential. It includes brushing teeth immediately after waking up and before bed, flossing...
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Endocarditis IV: Nursing Management01:29

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Infective endocarditis (IE) is a chronic infection of the heart's endocardium, primarily affecting the heart valves. A detailed nursing assessment for a patient with IE involves collecting subjective and objective data to ensure an accurate diagnosis and timely intervention.Subjective DataThe nurse gathers information about the patient's symptoms and complaints during the subjective assessment. Patients with infective endocarditis often report non-specific symptoms that can mimic other...
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Experimental Endocarditis Model of Methicillin Resistant Staphylococcus aureus MRSA in Rat
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Distribution of streptococcal groups causing infective endocarditis: a descriptive study.

So Lim Kim1, Steven M Gordon2, Nabin K Shrestha2

  • 1Case Western Reserve University School of Medicine, 2109 Adelbert Rd, Cleveland, OH 44106, USA.

Diagnostic Microbiology and Infectious Disease
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PubMed
Summary
This summary is machine-generated.

This study analyzed streptococci causing infective endocarditis (IE) in 296 patients. Viridans group streptococci were most common, with Streptococcus mitis group predominating.

Keywords:
DistributionEndocarditisStreptococciValve PCRViridans group

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Area of Science:

  • Infectious Diseases
  • Microbiology
  • Cardiology

Background:

  • Infective endocarditis (IE) is a serious infection of the heart's inner lining.
  • Accurate identification of causative pathogens is crucial for effective treatment and understanding disease epidemiology.
  • Streptococci are a significant group of bacteria implicated in IE.

Purpose of the Study:

  • To delineate the distribution of streptococcal species responsible for infective endocarditis.
  • To provide updated epidemiological data on streptococcal IE pathogens.
  • To compare the diagnostic utility of different microbiological methods.

Main Methods:

  • Retrospective analysis of 296 patients with definite infective endocarditis (July 2007 - December 2014).
  • Microbial identification using blood culture, valve culture, and valve polymerase chain reaction (PCR).
  • Categorization of streptococci into viridans, pyogenic, nutritionally variant, and anaerobic groups.

Main Results:

  • Streptococci accounted for a substantial proportion of IE cases.
  • Viridans group streptococci were the most prevalent (76%), followed by pyogenic (17%).
  • Within the viridans group, Streptococcus mitis group was the most common (61%).
  • Streptococcus agalactiae was the predominant pyogenic streptococcus (78%).
  • Polymerase chain reaction (PCR) demonstrated higher sensitivity than culture for identifying streptococci in excised heart valves.

Conclusions:

  • Viridans group streptococci, particularly Streptococcus mitis group, are the leading cause of streptococcal infective endocarditis.
  • Pyogenic streptococci, notably Streptococcus agalactiae, also contribute significantly to IE.
  • Polymerase chain reaction (PCR) offers improved sensitivity for pathogen detection in cardiac tissue compared to traditional culture methods.