Hearts with and without adhesions (IMAGE) University of California - San Diego Caption Left: a rat heart treated with the hydrogel post-op after two weeks shows no adhesions. Right: the control heart that was no treated, after two weeks has severe adhesions, attaching the heart tissue to the rib cage. Credit University of California San Diego Usage Restrictions Please credit University of California San Diego License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.