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Ruptured Aortic Valve Aneurysm Caused by Infective Endocarditis in a SARS-CoV-2-Positive Autopsy Case
Shojiro Takasu1, Sari Matsumoto, Yuko Kanto
1From the Department of Forensic Medicine, The Jikei University School of Medicine, Tokyo, Japan.
Insights
A rare aortic valve aneurysm ruptured, causing fatal heart failure in a patient with COVID-19. This case highlights a potential link between SARS-CoV-2 infection and infective endocarditis complications.
Area of Science:
- Cardiology
- Infectious Diseases
- Pathology
Background:
- Aortic valve aneurysm is a rare complication of infective endocarditis (IE).
- Coronavirus disease 2019 (COVID-19) can lead to cardiovascular issues and increase susceptibility to secondary infections like IE.
Purpose of the Study:
- To report a fatal case of IE with aortic valve aneurysm rupture in a patient with severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection.
- To explore the potential association between SARS-CoV-2 and IE-related cardiovascular complications.
Main Methods:
- Autopsy examination of a 67-year-old male with heart failure symptoms.
- Histological analysis of the aortic valve, including Gram staining.
- Reverse transcription quantitative polymerase chain reaction (RT-qPCR) for SARS-CoV-2 detection.
Main Results:
- Autopsy revealed a ruptured aortic valve aneurysm with vegetation, cusp destruction, and an abscess.
- Gram staining identified a gram-positive coccus.
- RT-qPCR confirmed SARS-CoV-2 positivity. No other IE risk factors were identified.
Conclusions:
- The findings suggest a likely association between SARS-CoV-2 infection and infective endocarditis complicated by aortic valve aneurysm rupture.
- This case underscores the severe cardiovascular sequelae that can arise from COVID-19, including rare but fatal complications.
Abstract:
Aortic valve aneurysm, an extremely rare complication secondary to infective endocarditis (IE), may cause heart failure due to rupture of the aneurysm. Coronavirus disease 2019 (COVID-19) has been reported to cause cardiovascular complications and alter susceptibility to secondary infections such as IE. Herein, we report a case of IE with a fatal outcome caused by rupture of an aortic valve aneurysm in a severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-positive autopsy case. The patient was a 67-year-old male diagnosed with heart failure after presenting with edema and weight gain. He was found dead in bed 2 weeks after initial symptom presentation. Autopsy revealed an aneurysmal sac in the center of the noncoronary cusp of the aortic valve with an opening of approximately 1 cm in the center of the aneurysmal wall. Histologically, aortic valve vegetation, destruction of the aortic valve cusp, rupture of the aneurysmal wall, and an abscess under the aortic intima were observed. Gram staining of the aneurysmal wall showed a gram-positive coccus. The reverse transcription quantitative polymerase chain reaction assay was positive for SARS-CoV-2. Because no defined risk factors for IE other than SARS-CoV-2 infection were observed, the association between IE and COVID-19 was highly likely.
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