An endovascular delivery system for forming a magnetic compression vascular anastomosis includes a first compressing element and a first catheter configured for advancement into a first cardiovascular structure. In one configuration, the first compressing element is removably secured within the first catheter and, in another configuration, the first compressing element is released from the first catheter and positioned within the first cardiovascular structure. The endovascular delivery system also includes a second compressing element and a second catheter configured for advancement into a second cardiovascular structure. In one configuration, the second compressing element is removably secured within the second catheter and, in another configuration, the second compressing element is released from the second catheter and positioned within the second cardiovascular structure. The first and second compressing elements have an anastomosis forming configuration in which the compressing elements compress tissue of the first and second cardiovascular structures using magnetic force.
