: External Shunt Versus Internal Shunt for Off Pump Glenn

glenn with internal shunt (veno-atrial shunt) where the surgeon established a shunt between distal SVC and the right atrium, Establishing a veno-atrial shunt.

Glenn with external shunt where the anesthesiologist connected the internal Jagular venous cannula which represent the SVC with the main lumen of the femoral cannula which represent the IVC through long venous extension