Relation between fetal flow patterns, coarctation of the aorta, and pulmonary blood flow.

Relation between fetal flow patterns, coarctation of the aorta, and pulmonary blood flow.

Intracardiac anomalies cause disturbances in fetal flow patterns which in turn influence dimensions of the great vessels. At birth the aortic isthmus, which receives 25 per cent of the combinedfetal ventricular output, is normally 25 to 30 per cent narrower than the descending aorta. A shelf-like indentation of the posterior aortic wall opposite the ductus characterizes thejunction of the isthm...

The Renal Blood Flow in Coarctation of the Aorta.

Cerebral Blood Flow in Coarctation of the Aorta.

The hemodynamics of coarctation of the aorta have been extensively investigated. These studies have shown that the renal blood flow is within normal limits (1), as in flow to the extremities (2-4), even though the circulation time to the lower parts of the body has a tendency to be prolonged (5). Although coronary blood flow has been reported to be increased (6), the data are quite scattered, a...

Blood Flow Simulation in an Aorta with a mild coarctation Using Magnetic Resonance Angiography and Finite Volume Method

Coarctation of the aorta is one of the five main congenital cardiovascular failures, accounting for 6–8 percent of these failures. This research aimed to simulate the blood flow of a seventeen-year-old male teen with a mild coarctation at one-third of his aorta's descending branch. The simulation was performed by extracting the domain and the input pulsatile velocity signal as the boundary cond...

A Case of Coarctation of the Aorta Diagnosed by Tardus-Parvus Renal Doppler Flow Patterns

A 21-year-old male with secondary hypertension was referred to our facility by a general physician. The patient had no family history or risk factors for hypertension. During the physical examination the patient’s blood pressure (BP) measured 190/110 in both arms and no cardiac murmur or bruit was detected. Renal Doppler sonography was performed to identify the potential cause of secondary hype...