Maraj R, Ahmed O, Fraifeld M, Jacobs L E, Yazdanfar S, Kotler M N
Division of Cardiology, Albert Einstein Medical Center, Philadelphia, Pennsylvania 19141, USA.
Tex Heart Inst J. 1999;26(4):306-8.
In most patients with a patent foramen ovale, blood flows from the left atrium to the right atrium in the absence of pulmonary hypertension. Our report describes a patient with a patent foramen ovale in whom flow occurred from the right atrium to the left atrium in the absence of pulmonary hypertension. We discuss hemodynamic findings and present a brief review of the pertinent medical literature regarding this phenomenon. We also discuss the role of transesophageal echocardiography in the diagnosis of this condition and in the elucidation of the underlying mechanisms, and we suggest several mechanisms that may explain the occurrence of this phenomenon in our patient.
在大多数卵圆孔未闭的患者中，在没有肺动脉高压的情况下，血液从左心房流向右心房。我们的报告描述了一名卵圆孔未闭的患者，在没有肺动脉高压的情况下，血液从右心房流向左心房。我们讨论血流动力学发现，并简要回顾有关此现象的相关医学文献。我们还讨论经食管超声心动图在这种情况的诊断以及阐明潜在机制中的作用，并提出几种可能解释我们患者中这种现象发生的机制。
