Experimental Methods for Producing a Collateral Circulation to the Heart Directly From the Left Ventricle

Myocardial blood supply through a direct left ventricle–coronary artery shunt is not aided by augmented coronary capacitance

“…L eft ventricle-coronary artery (LV-CA) shunt implantation is proposed as an alternative revascularization procedure when percutaneous transluminal coronary angioplasty and coronary artery bypass surgery are not an option. Already in the late 1960s, direct ventricular sourcing was studied by several groups, [1][2][3] who concluded that direct sourcing would make the myocardium ischemic and was unlikely to be useful. 2 Recently, the concept was revisited by Tweden and colleagues 4 and Suehiro and associates, 5 who showed that in their model direct sourcing from the LV resulted in a net forward coronary artery flow of approximately 50% to 70% of native flow.…”