controlled ex vivo heart condition controlled ex vivo heart perfusion 2022-10-10T12:35:44Z Langendorff heart perfusion This is an experimental condition consisting of perfusion (retrograde or forward) of the isolated heart with some physiological buffer (consisting of controlled solute composition and specific flow rate) through the aorta. In retrograde perfusion the backwards pressure causes the aortic valve to shut, forcing the solution into the coronary vessels, which normally supply the heart tissue with blood. XCO:0000962 biventricular working heart perfusion experimental_condition_ontology slaulede working (ejecting) heart perfusion