Mitral Valve Repair in a Patient with Isolated Unilateral Absence of Pulmonary Artery and Collateral Circulation from Coronary Artery

抄録

A 54-year-old woman with mitral valve regurgitation and isolated unilateral absence of the right pulmonary artery underwent mitral valve repair through a median sternotomy. Collateral circulation from both sides of the coronary artery to the right lung was observed. These vessels were ligated before cardiac arrest and mitral valve repair was successfully performed without complications. In this particular patient with unilateral absence of the right pulmonary artery, it was mandatory to assess collateral circulation to the right lung when performing surgery using cardiopulmonary bypass.