Canadian Medical Guide > Diseases > Cardiovascular Diseases > Cardiovascular Abnormalities Terms and Definitions

Cardiovascular Abnormalities

Medical Definition:	Congenital structural abnormalities of the cardiovascular system.
Guide Notes:	for congen struct abnorm only; GEN or unspecified; prefer specifics or specific organ /abnorm but article is more likely to be on HEART DEFECTS, CONGENITAL: check text; do not use /congen & do not coord with INFANT, NEWBORN, DISEASES; DF: CARDIOVASC ABNOR
Previously Indexed:	Heart Defects, Congenital (1966-1997)

Cardiovascular Abnormalities Categories.

	Arterio-Arterial Fistula - Abnormal communication between two arteries that may result from injury or occur as a congenital abnormality.
	Arteriovenous Malformations - Abnormal, tangled collections of dilated blood vessels that result from congenitally malformed vascular structures in which arterial afferents flow directly into venous efferents without the usual resistance of an intervening capillary bed. A common type is the congenital arteriovenous fistula (ARTERIOVENOUS FISTULA /congenital). For arteriovenous malformations in the brain, INTRACRANIAL ARTERIOVENOUS MALFORMATIONS is available. (From Merck Manual, 15th ed)
	Heart Defects, Congenital - Imperfections or malformations of the heart, existing at birth.
	Pulmonary Atresia - Congenital absence of the normal valvular orifice into the pulmonary artery. This condition is characterized by cardiomegaly, reduced pulmonary vascularity, and right ventricular atrophy. (From Stedman, 25th ed; Dorland, 27th ed)

Cardiovascular Abnormalities Medical Definitions and Terms

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