Amin Sanaz, Madsen Per Lav
Ugeskr Laeger. 2018 May 21;180(21).
Platypnoea-orthodeoxia (PO) is a condition with dyspnoea and arterial deoxygenation during orthostasis, which is relieved in the supine position. This is a review of the background of PO, which is always an orthostasis-related right-to-left shunt of deoxygenated blood either across a persistent foramen ovale/atrial septal defect or an anatomical or functional pulmonary shunt, and diagnosis and management is discussed. PO is considered to be rare but will presumably be diagnosed increasingly frequently with increased use of pulse oximetry and functional imaging including echocardiography with bubble-contrast.
平卧呼吸-直立性低氧血症（PO）是一种在直立位时出现呼吸困难和动脉血氧合不足，而在仰卧位时症状缓解的病症。本文对PO的背景进行了综述，PO始终是一种与直立位相关的脱氧血液从右至左分流，其途径要么是通过持续存在的卵圆孔/房间隔缺损，要么是通过解剖学或功能性肺分流，并对其诊断和管理进行了讨论。PO被认为较为罕见，但随着脉搏血氧饱和度测定以及包括经气泡造影超声心动图在内的功能成像技术使用的增加，其诊断可能会越来越频繁。
