obstructive subaortic conus 《英文msh词典》Obstructive Subaortic Conus ; [同义词] Obstructive Subaortic Conus ; [主题词] Pulmonary Subvalvular Stenosis ; [中文释义] 栓塞性下主动脉圆椎 ; [英文释义] Stenosis of the conus arteriosus (infundibulum) with or without involvement of the pulmonary valve. It is usually associated with a defect in the interventricular septum.