Method
Validity of the hepatojugular reflux as a clinical test for congestive heart failure

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Abstract

This study describes observations designed to test the validity of the hepatojugular reflux as an indicator of actual or incipient heart failure. The central venous pressure (CVP) could be predicted from the height of the jugular venous pulsations in 44 of 48 comparisons. In the remaining comparisons, discrepancies ranged from 5 to 7 mm Hg. In patients with normal resting cardiac function, abdominal compression did not cause an increase in CVP of >2 mm Hg (2.7 mm H2O). In 16 of 19 patients with impaired function, CVP increased by ≥3 mm Hg. The increase in CVP was estimated from neck veins to within 2 mm Hg in all but 3 instances. CVP stabilized by 10 seconds and did not change over the subsequent 60 seconds. Abdominal compression caused no consistent change in cardiac output. Changes in venous pressure could not be attributed to changes in esophageal pressure or to compression of the heart by elevation of the diaphragm. Observations were consistent with the hypothesis that an increase in right-sided cardiac filling pressures resulting from abdominal compression carried out as described here, reflects both the volume of blood in the abdominal veins and the ability of the ventricles to respond to increased venous return, and constitutes a useful clinical test for detecting congestive cardiac failure. An increase of 3 cm in the height of neck vein distention is a reasonable upper limit of normal.

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