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(Circulation. 1995;91:897-898.)
© 1995 American Heart Association, Inc.

Articles

Unusual Complications of Aortic Valve Ring Abscess in Subacute Bacterial Endocarditis

Carl E. Eybel, MD

From Associates in Cardiology, Ltd, Chicago, Ill.

Correspondence to Carl E. Eybel, MD, Associates in Cardiology, Ltd, Rush-Presbyterian-St Lukes Professional Bldg, 1725 W Harrison St, Suite 1138, Chicago, IL 60612.

	Introduction

 
A 62-year-old man presented with staphylococcal endocarditis on a bicuspid aortic valve. A valve ring abscess occurred, and an acute large fistula from the aortic root to the right ventricle appeared, requiring emergency surgical repair. After surgery, a continuous murmur was still present along both sternal borders, and complete heart block necessitated a dual-chamber pacemaker. During the following 6 months, the continuous murmur became more intense, and an aortic insufficiency murmur appeared. The surgical repair had involved placement of a low-profile mechanical aortic valve prosthesis. Noninvasive follow-up confirmed an enlarging aorta–to–right ventricle communication, along with perivalvular aortic insufficiency. The patient also developed signs and symptoms of biventricular heart failure. An ascending aortogram (Fig 1) revealed contrast medium filling both ventricular chambers. Coronary angiography revealed that a previously small mycotic aneurysm of the distal left main coronary artery had enlarged (Fig 2). A significant left-to-right blood flow shunt at the ventricular level was also confirmed by oxygen content data. Repeat surgical repair involved a repeat aortic valve replacement and closure of the aorta–to–right ventricular fistula. The mycotic aneurysm was primarily ligated. The patient continues to do well.

View larger version (112K): [in this window] [in a new window]   Figure 1. Aortogram showing contrast medium filling right and left ventricles through the fistula and perivalvular hole, respectively. AO indicates aorta; RV, right ventricle; S, interventricular septum; and LV, left ventricle.

View larger version (118K): [in this window] [in a new window]   Figure 2. Left coronary angiography showing mycotic aneurysm (arrow) of distal left main coronary artery.

	Footnotes

 
The editor of Images in Cardiovascular Medicine is Hugh A. McAllister, Jr, MD, Chief, Department of . . . [Full Text of this Article]