Myocardial abscess due to Klebsiella pneumoniae complicating acute infarction
Related Experiment Video
Updated: Sep 11, 2026

Visualization of Streptococcus pneumoniae within Cardiac Microlesions and Subsequent Cardiac Remodeling
Published on: April 7, 2015
Abstract:
A case is described in which Klebsiella pneumoniae urosepsis associated with acute myocardial infarction resulted in myocardial abscess and papillary muscle rupture. The diagnosis was made during surgery for mitral valve replacement. The patient improved after therapy with cefotaxime; however, cardiac rupture occurred on the sixth postoperative day. The pathogenesis of myocardial abscess and the use of non-invasive techniques for diagnosis are discussed.
Insights
Klebsiella pneumoniae urosepsis complicated acute myocardial infarction, leading to myocardial abscess and papillary muscle rupture. Early diagnosis and treatment are crucial for managing this rare cardiac complication.
Area of Science:
- Infectious Diseases
- Cardiology
- Critical Care Medicine
Background:
- Urosepsis, a severe bloodstream infection originating from the urinary tract, can lead to systemic complications.
- Acute myocardial infarction (heart attack) is a leading cause of cardiovascular mortality.
- The co-occurrence of urosepsis and myocardial infarction presents complex clinical challenges.
Observation:
- A patient developed Klebsiella pneumoniae urosepsis concurrently with acute myocardial infarction.
- This led to the formation of a myocardial abscess and rupture of the papillary muscle.
- Diagnosis was established during surgical intervention for mitral valve replacement.
Findings:
- The patient initially responded to cefotaxime therapy, indicating bacterial susceptibility.
- Despite initial improvement, cardiac rupture occurred postoperatively, highlighting the severity of the myocardial abscess.
- The case underscores the potential for severe cardiac sequelae from disseminated infections.
Implications:
- This case highlights the critical need for prompt recognition and management of myocardial abscesses in patients with sepsis and myocardial infarction.
- It emphasizes the importance of considering infectious etiologies in myocardial complications.
- Further research into non-invasive diagnostic techniques for myocardial abscesses is warranted to improve patient outcomes.
More Related Videos
Related Concept Videos
Endocarditis I: Introduction
Endocarditis III: Medical Management
Endocarditis IV: Nursing Management
Myocarditis I: Introduction
Acute Pyelonephritis II: Diagnostic Studies and Management
Brain Abscess l: Introduction

