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Acyanotic cardiac lesions represent a significant portion of all congenital heart disease. Although acyanotic shunt lesions are discussed in Chapter 7, this chapter focuses on acyanotic valve and ventricular outflow tract lesions as well as common vascular abnormalities. The chapter begins with a discussion of the semilunar valves (aortic valve and pulmonary valve) and their associated ventricular outflow tracts. Next, lesions of the atrioventricular valves (mitral valve and tricuspid valve) are addressed. Finally, the chapter concludes with a discussion of aortic arch anomalies and peripheral pulmonary stenosis. Each section begins with a description of the normal cardiac structures prior to describing the lesions that affect them. Tables 8-1 and 8-2 summarize the salient points from each section. Endocarditis prophylaxis for various lesions is discussed in Chapters 14 and 16.

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Table 8-1. A Summary of Common Acyanotic Congenital Cardiac Lesions and Associated Findings

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