Thomas D V, Bynevelt M, Price R
Department of Radiology, Sir Charles Gairdner Hospital, Perth, Western Australia 6009, Australia.
Australas Radiol. 2005 Dec;49(6):501-4. doi: 10.1111/j.1440-1673.2005.01480.x.
The foramen ovale is usually obliterated following establishment of the adult circulation but remains patent in 25% of individuals. This potential communication between the venous and arterial circulations can allow thromboembolic material to bypass the lungs and enter the systemic circulation. We report two cases of paradoxical embolization through a patent foramen ovale following acute large pulmonary embolism (PE) and discuss the factors that predispose to paradoxical embolization following PE.
卵圆孔通常在成人循环建立后闭合,但仍有25%的人保持开放。静脉循环和动脉循环之间的这种潜在通道可使血栓栓塞物质绕过肺部进入体循环。我们报告了两例急性大面积肺栓塞(PE)后通过开放卵圆孔发生反常栓塞的病例,并讨论了PE后易发生反常栓塞的因素。