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Anatomy of the left atrium following an atriotomy. Exposure is obtained using a left atrial lift system. In a left dominant system, the circumflex artery wraps further around the mitral valve, parallel to the coronary sinus. SVC, superior vena cava; LIPV, left inferior pulmonary vein; LSPV, left superior pulmonary vein; RSPV, right superior pulmonary vein; RIPV, right inferior pulmonary vein; IVC, inferior vena cava.
