Related Experiment Videos
[Bacterial endocarditis and its relationships with obstructive hypertrophic cardiomyopathy and hepatic cirrhosis
Insights
Bacterial endocarditis is rare in obstructive hypertrophic cardiomyopathy but can occur. This case highlights Staphylococcus aureus endocarditis in a cirrhotic patient, emphasizing the need for vigilance in high-risk populations.
Area of Science:
- Cardiology
- Infectious Diseases
- Hepatology
Background:
- Obstructive hypertrophic cardiomyopathy (oHCM) is a cardiac condition where bacterial endocarditis is an infrequent complication.
- Cirrhotic patients may have a higher incidence of bacterial endocarditis, suggesting potential links to spontaneous bacterial peritonitis.
- Pathologic examination of cardiac lesions in these cases is rare, limiting understanding of the association.
Observation:
- A female patient with alcoholic liver cirrhosis and symptomatic obstructive hypertrophic cardiomyopathy developed bacterial endocarditis.
- The endocarditis involved the mitral valve and was caused by Staphylococcus aureus.
- The patient ultimately succumbed to infected ascites.
Findings:
- The clinical presentation, responsible microorganisms, and prognosis of endocarditis in oHCM are generally similar to other forms of endocarditis.
- This case provides rare pathological insight into bacterial endocarditis complicating obstructive hypertrophic cardiomyopathy in a cirrhotic patient.
- The findings support the hypothesis of a hematogenous origin for spontaneous bacterial peritonitis in cirrhotic individuals.
Implications:
- Increased awareness of bacterial endocarditis risk in patients with obstructive hypertrophic cardiomyopathy, particularly those with comorbidities like liver cirrhosis.
- The case underscores the importance of considering Staphylococcus aureus as a causative agent in endocarditis within this patient group.
- Further research into the mechanisms linking liver cirrhosis, obstructive hypertrophic cardiomyopathy, and bacterial endocarditis is warranted to improve patient outcomes.
Abstract:
Although in the last few years several cases of bacterial endocarditis have been reported in patients with obstructive hypertrophic cardiomyopathy, such as association is still infrequent and only in rare instances has pathologic examination of the cardiac lesions been possible. In this work a brief comment is made on the different forms of clinical presentation of the disease. The type of endocarditis, the relative incidence of responsible germs, and the prognosis are similar to those of other endocarditis. The clinical and autopsy findings of a female patient with alcoholic liver cirrhosis and symptomatic obstructive hypertrophic cardiomyopathy who developed a bacterial endocarditis of the mitral valve due to Staphylococcus aureus are reported. The patient died of an infected ascites. Some recent reports point to a higher incidence of bacterial endocarditis in cirrhotic patients, and this fact is felt to be an argument in favour of the hematogenous origin of spontaneous bacterial peritonitis.