摘要: Patent ductus arteriosus in adults is usually an isolated lesion with a small to moderate degree of shunt, as larger shunt becomes symptomatic earlier childhood. The classic murmur patent may be the first clue its presence, or it detected accidently by transthoracic echocardiography, computed tomography, magnetic resonance angiography for unrelated condition. percutaneous approach safe and effective more than 98% patients. Subacute bacterial endocarditis prophylaxis not indicated routinely except 6 months following closure percutaneously surgically.