Coronary arteriovenous fistula is a rare congenital cardiac anomaly 摘要先天性冠狀動(dòng)靜脈管是相當(dāng)罕見(jiàn)的先天性心臟疾病。
They generally arise when a continuous pressure differential allows blood to flow constantly from a high to a low pressure area , as may occur in a variety of congenital defects , most commonly patent ductus arteriosus , anomalous origin of the left coronary artery , or coronary arteriovenous fistula 一般出現(xiàn)在持續(xù)壓力差使血液從一高壓區(qū)不斷流向低壓區(qū)時(shí),也可以出現(xiàn)在一些有先天性缺陷的病,最常見(jiàn)的有動(dòng)脈導(dǎo)管未閉、左冠狀動(dòng)脈起端異常,或冠狀靜脈動(dòng)脈瘺。