Pressure Gradients in the Atria and Pulmonary Veins in Man

Nahas, Gabriel G.; Morgan, E.; Burchell, Howard B.

doi:10.3181/00379727-74-18032

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1953

1964

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“…The smaller capacity of the venous system draining into the left atrium than into the right" 8,15 The right atrial pressure pulse curve shown in figure 1 and used for figure 6 is seen especially in cases of valvular pulmonic stenosis with intact ventricular septum. The precise cause of the augmented "a" wave has not been fully explained.33…”

Section: Methodsmentioning

confidence: 99%

Observations on the Interatrial Pressure Gradients in Man

Shaffer¹,

Silber²,

Katz³

1954

Circulation

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It was possible to calculate pressure gradients across the interatrial septum in several cases of congenital heart disease. Gradients in cases of interatrial septal defect are similar to those found in animals with artificially produced defects. The data are used to form a rounded picture of the hemodynamics of interatrial septal defect. In pulmonic stenosis with interatrial communication, reversal of the usual left-to-right gradient may occur only during atrial systole. Under these circumstances it is often possible to distinguish a patent foramen ovale with competent valve from an interatrial septal defect.

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Section: Methodsmentioning

confidence: 99%