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Case Reports
. 2020 Aug 27:21:e923023.
doi: 10.12659/AJCR.923023.

Unusual Complications of Infective Endocarditis

Affiliations
Case Reports

Unusual Complications of Infective Endocarditis

Maria S Bonou et al. Am J Case Rep. .

Abstract

BACKGROUND Despite advances in management, infective endocarditis remains a condition with high in-hospital and post-discharge mortality, especially when it is complicated by perivalvular extension and heart failure (HF). CASE REPORT Herein we describe two illustrative cases of endocarditis. The first case was complicated by left ventricle to right atrial fistula. The second cased was complicated by valvular perforation with a "windsock" appearance. Both patients developed acute HF. CONCLUSIONS Fistulas and severe valvular regurgitation are among the major causes of acute HF in the setting of infective endocarditis. In such cases, surgery should be considered to decrease mortality.

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Conflict of interest statement

Conflict of interest: None declared

Figures

Figure 1
Figure 1
Transesophageal echocardiogram, three chamber-view. A ruptured abscess to the left ventricular outflow tract (LVOT), forming a pseudoaneurysm, is visible adjacent to the aortic valve prosthesis (AVP). LA – left atrium; LV – left ventricle.
Figure 2
Figure 2
Transesophageal echocardiogram, mid-esophageal short axis view, aortic valve level. A large pseudoaneurysm around the annulus of the prosthetic aortic valve (AVP), as well as vegetations (arrow) on the tricuspid valve (TV) can be seen. LA – left atrium; RA – right atrium; RV – right ventricle.
Figure 3
Figure 3
Transesophageal echocardiogram, mid-esopheageal short axis view, aortic valve level, color Doppler interrogation. The flow into the pseudoaneurysm surrounds the aortic prosthesis (AVP) annulus, forming a rim, and there is a fistula (arrow) between the pseudoaneurysm and the right atrium (RA). LA – left atrium.
Figure 4
Figure 4
Transesophageal echocardiogram, mid-esophageal four-chamber view. Perforation of the anterior mitral valve leaflet, with “windsock” appearance (arrow), is shown. LA – left atrium; LV – left ventricle; RA – right atrium.
Figure 5
Figure 5
Transesophageal echocardiogram, mid-esophageal four-chamber view, color Doppler interrogation. There is severe mitral valve regurgitation through the perforation (arrow) of the anterior mitral valve leaflet. Localization of the jet indicates mitral valve perforation. LA – left atrium; LV – left ventricle; RA – right atrium.
Video 1
Video 1
Transesophageal echocardiogram, three-chamber view. An oscillating mass corresponding to a vegetation can be seen on the aortic prosthesis. The pseudoaneurysm with the appearance of a large echo-free perivalvular cavity exhibiting pulsatile flow also can be seen clearly.
Video 2
Video 2
Transesophageal echocardiogram, mid-esophageal short axis view, aortic valve level. The cavity now surrounds the aortic prosthesis like a rim and there is a fistula between the LVOT and the right atrium. Vegetations are seen on both the aortic prosthesis and the atrial surface of the tricuspid valve. Tricuspid valve endocarditis ensued secondarily as a jet lesion.
Video 3
Video 3
Transesophageal echocardiogram, mid-esopheageal short axis view, aortic valve level, color Doppler interrogation. There is a continuous flow between the left ventricular outflow tract and the right atrium. The jet strikes the atrial surface of the tricuspid valve.
Video 4
Video 4
Transesophageal echocardiogram, mid-esophageal four-chamber view. Perforation of the anterior mitral valve leaflet, with “windsock” appearance.
Video 5
Video 5
Transesophageal echocardiogram, mid-esophageal four-chamber view, color Doppler interrogation. There is severe mitral valve regurgitation through the perforation of the anterior mitral valve leaflet.

References

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