Related Experiment Video

Updated: Jan 25, 2026

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement
14:14

Standardized Technique of Aortic Valve Re-implantation for Valve-sparing Aortic Root Replacement

Published on: December 11, 2017

14.6K

A Fish Mouth Appearing Perforation of the Native Aortic Valve Due to Streptococcus infantarius subspecies coli

Maheedhar Gedela1, Shawn Kelly2,1, Shenjing Li2,1

  • 1University of South Dakota Sanford School of Medicine.

South Dakota Medicine : the Journal of the South Dakota State Medical Association
|September 2, 2017
PubMed

Insights

Infective endocarditis caused by Streptococcus infantarius subspecies coli is rare in healthy individuals. This report details a unique case in an elderly male without typical risk factors, highlighting an unusual presentation of this infection.

Area of Science:

  • Infectious Diseases
  • Microbiology
  • Cardiology

Background:

  • Infective endocarditis (IE) is a serious infection of the heart's inner lining.
  • Streptococcus infantarius subspecies coli (S. infantarius subsp. coli) is an uncommon cause of IE, typically linked to gastrointestinal or hepatobiliary issues.
  • Known associations include hepatobiliary malignancies and colorectal neoplasia.

Observation:

  • A unique case of IE caused by S. infantarius subsp. coli is presented.
  • The patient was an 80-year-old male.
  • The patient had no previously identified risk factors for infective endocarditis.

Findings:

  • The study identifies a rare instance of S. infantarius subsp. coli causing infective endocarditis.
  • This case occurred in an elderly patient lacking typical predisposing conditions for IE.
  • The findings expand the clinical spectrum of S. infantarius subsp. coli infections.

Implications:

  • This case underscores the importance of considering S. infantarius subsp. coli in endocarditis, even in patients without apparent risk factors.
  • Further research may elucidate the specific mechanisms and risk factors associated with this rare pathogen in IE.
  • Clinical awareness of this association is crucial for timely diagnosis and management of infective endocarditis.

More Related Videos

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots12:17

Full-root Aortic Valve Replacement by Stentless Aortic Xenografts in Patients with Small Aortic Roots

Published on: May 21, 2017

11.8K
Design of a Cyclic Pressure Bioreactor for the Ex Vivo Study of Aortic Heart Valves07:12

Design of a Cyclic Pressure Bioreactor for the Ex Vivo Study of Aortic Heart Valves

Published on: August 23, 2011

16.2K

Related Concept Videos

Chemotaxis in E. coli01:27

Chemotaxis in E. coli

Chemotaxis in Escherichia coli is a sensory-driven motility mechanism that enables bacteria to navigate chemical gradients, moving toward beneficial environments while avoiding harmful conditions. This process relies on a signal transduction system integrating external chemical cues with flagellar motor control.Chemoreceptors and Signal DetectionE. coli detects chemical gradients through methyl-accepting chemotaxis proteins (MCPs), which are membrane-bound chemoreceptors that sense attractants...
748
Heart Valves01:16

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
11.5K
Assessment of the Mouth01:26

Assessment of the Mouth

A thorough mouth assessment, including inspection and palpation of the lips, gums, tongue, tonsils, uvula, and pharynx, is crucial in detecting potential health issues. Diseases ranging from oral cancer to systemic conditions like diabetes could be identified early through careful oral examination. This article provides a detailed guide on conducting a comprehensive mouth assessment.
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
1.1K
Osmoregulation in Fishes02:32

Osmoregulation in Fishes

When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
53.0K
Esophageal Perforation-I: Introduction01:22

Esophageal Perforation-I: Introduction

Esophageal perforation is a severe medical condition characterized by a breach in the integrity of the esophageal wall. This breach can occur due to various factors such as trauma, medical procedures, or underlying diseases. When the esophageal wall is compromised, it allows food, fluids, and digestive juices into the chest cavity or adjacent structures, leading to potential complications and health risks.
The location of esophageal perforation can vary, occurring anywhere along the esophagus....
543
Esophageal Perforation-II: Clinical Manifestations and Management01:28

Esophageal Perforation-II: Clinical Manifestations and Management

Esophageal perforations manifest in various clinical forms, influenced by factors such as the perforation's cause and location (cervical, intrathoracic, or intra-abdominal), the extent of contamination, and potential injury to adjacent mediastinal structures. The timing between the perforation occurrence and treatment initiation also affects the clinical presentation.
Clinical Manifestations:
645