IMR Press / FBL / Volume 16 / Issue 6 / DOI: 10.2741/3857

Frontiers in Bioscience-Landmark (FBL) is published by IMR Press from Volume 26 Issue 5 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on as a courtesy and upon agreement with Frontiers in Bioscience.

Open Access Article
Pulmono-atrial shunt and lung assist to treat right ventricular failure
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1 Clinic for Cardiothoracic Surgery, University Hospital RWTH Aachen, Pauwelsstr. 30, D-52074 Aachen, Germany
2 Clinic for Anesthesiology, University Hospital RWTH Aachen, Pauwelsstr. 30, D-52074 Aachen, Germany
3 Department of Reproduction and Ageing, University of Pisa, Via Roma 67, 56126 Pisa, Italy

Academic Editor: Angelo Carpi

Front. Biosci. (Landmark Ed) 2011, 16(6), 2342–2351;
Published: 1 June 2011
(This article belongs to the Special Issue Advances in bone disease pathophisiology and management)

In right ventricular failure (RVF) a decrease of right ventricular afterload and improvement of left atrial filling could be achieved by a pulmonary artery-left atrial (PA)-shunt. To avoid cyanosis, artificial oxygenation is necessary. In 11 pigs a PA-shunt was created. An interventional lung assist device (ILA) was installed from the femoral artery to vein in 5 pigs (serial in relation to native lung: Group I) and into the PA-shunt in 6 pigs (parallel: Group II). RVF was induced by pulmonary artery banding. Right ventricular performance was determined by pulse contour analysis, pressure - and flow measurements. In both groups a stable RVF was generated. In Group I cardiac output trended to increase but neither right ventricular filling pressures nor arterial pressure changed significantly. The PaO2 decreased significantly. In Group II cardiac output and arterial pressure increased significantly under a shunt flow of 2.3- 2.6 l/min and the animals recovered from cardiogenic shock. In conclusion a PA-shunt with a parallel lung assist can effectively reverse the deleterious effects of RVF.

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