Herregods M C, Timmermans C, Frans E, Decramer M, Daenen W, De Geest H
Department of Cardiology, Pneumology, and Cardiac Surgery, University Hospital Gasthuisberg, Leuven, Belgium.
J Am Soc Echocardiogr. 1993 Nov-Dec;6(6):624-7. doi: 10.1016/s0894-7317(14)80182-x.
Platypnea is a rare syndrome of orthostatic dyspnea frequently caused by an interatrial right-to-left shunt. The diagnosis is difficult. Assessment of arterial blood gases reveals orthostatic desaturation. In the past, definite diagnosis necessitated catheterization in the supine and upright position. Now transesophageal echocardiography on a tilt table combined with a peripheral venous contrast study provides correct diagnosis in a safe and easy way.
平卧呼吸困难是一种罕见的体位性呼吸困难综合征,常由心房右向左分流引起。诊断困难。动脉血气评估显示体位性血氧饱和度降低。过去,明确诊断需要在仰卧位和直立位进行心导管检查。现在,在倾斜台上进行经食管超声心动图检查并结合外周静脉造影研究,能以安全简便的方式提供正确诊断。