Soares Pedro R, Melo Nuno, Ferrao Diana, Sousa Estela, Santos Adriana, Gomes André, Friões Fernando
Internal Medicine Department, Centro Hospitalar Universitário de São João, Porto, PRT.
Intermediate Care Unit, Internal Medicine Department, Centro Hospitalar Universitário de São João, Porto, PRT.
Cureus. 2022 Dec 14;14(12):e32538. doi: 10.7759/cureus.32538. eCollection 2022 Dec.
Platypnea-orthodeoxia syndrome (POS) is a rare clinical entity characterized by dyspnea and arterial desaturation in the upright position. Hypoxia in POS has been attributed to the mixing of deoxygenated venous with oxygenated arterial blood via a shunt, with patent foramen ovale being the most commonly reported abnormality. A systematic evaluation is necessary to identify the underlying cause and promote an appropriate intervention. Here, we present the case of a 79-year-old female with a new diagnosis of POS during the workup of hypoxemic respiratory failure.
平卧呼吸-直立性低氧血症综合征（POS）是一种罕见的临床病症，其特征为直立位时出现呼吸困难和动脉血氧饱和度降低。POS中的低氧血症被认为是由于脱氧静脉血与氧合动脉血通过分流混合所致，卵圆孔未闭是最常报道的异常情况。进行系统评估以确定潜在病因并促进适当干预是必要的。在此，我们报告一例79岁女性病例，该患者在低氧性呼吸衰竭检查过程中被新诊断为POS。
