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[Left ventricle-right atrium communications acquired in bacterial endocarditis]
Archives Des Maladies Du Coeur Et Des Vaisseaux
|November 1, 1985
Summary
Bacterial endocarditis can cause acquired left ventricle-right atrium communication, a serious condition requiring urgent surgical repair. Permanent pacing is necessary for associated third-degree atrioventricular block.
Area of Science:
- Cardiology
- Infectious Diseases
- Cardiac Surgery
Background:
- Bacterial endocarditis can lead to complex cardiac complications.
- Acquired communication between the left ventricle and right atrium is a rare but severe manifestation.
Observation:
- Three cases of acquired left ventricle-to-right atrium (LV-RA) communication secondary to bacterial endocarditis are presented.
- Causal organisms included Staphylococcus aureus and Streptococcus, complicating aortic valve disease or septal defects.
- Patients presented with acute ventricular septal defect-like symptoms and atrioventricular block (AVB).
Findings:
- Diagnosis was confirmed via imaging (echocardiography, ventriculography) and oximetry, revealing a significant left-to-right shunt.
- Surgical repair involved patching the fistula and correcting underlying valvular lesions.
- All patients developed third-degree AVB, necessitating permanent pacing due to the His bundle's proximity to the abscess.
Implications:
- Prompt surgical intervention is crucial for managing LV-RA fistulas caused by endocarditis.
- Understanding the anatomical implications is vital for managing associated conduction abnormalities.
- Successful surgical outcomes are achievable with appropriate management and long-term follow-up.