(1)心臓の左心房と右心房の間の異常な開孔
(2)an abnormal opening between the left and right atria of the heart
さらに詳しく
(1)刺激伝導障害のために鼓動がうまく調節できず、しばしば失神発作を繰り返す
(2)recurrent sudden attacks of unconsciousness caused by impaired conduction of the impulse that regulates the heartbeat
