backward failure

backward failure

Heart failure attributed to increased filling pressure of the ventricles due to obstruction, as occurs with mitral or tricuspid stenosis, which causes increased venous pressure with congestion. The clinical relevance of backward failure is uncertain.

backward failure

Cardiology Heart failure attributed to ↑ filling pressure of the ventricles, due to obstruction, as occurs with mitral or tricuspid stenosis, which causes ↑ venous pressure with congestion, ie backward failure. Cf Forward failure.
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Main findings were as follows: a large ventricular septal rupture with classical radiological signs of acute myocardial infarction (Figure 1), signs of severe backward failure with contrast agent being observed in hepatic veins, renal veins (Figure 1), the portal vein and the inferior vena cava (Figure 1), and thrombotic occlusion of the descending aorta just distal to the left subclavian artery (Figure 2).
Hepatic veins, hepatic parenchyma, and the portal vein (yellow arrow) are still opacified due to backward failure of the right heart.
Therefore left ventricular diastolic dysfunction can thus cause symptoms of both backward failure (dyspnea) as well as forward failure (easy fatigability).
Simultaneously, weakened pumping of blood forward will cause a damming back of blood in the left atrium and pulmonary venous system (often referred to as "left-sided backward failure").

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