Abstract

There is a wide variety of pathologies that can cause hypoxia with different pathophysiological mechanisms, and therefore with different response to treatment with supplemental oxygen, it is essential for emergency care physicians to know the different pathologies causing hypoxia to be able to adequately and direct the treatment , in this paper we discuss the case of a patient with syncope and hypoxia who reaches the emergency department, which mechanism of hypoxia is a consequence of an interatrial short circuit, reaching the conclusion of Eisenmenger syndrome, which is a pulmonary vascular disease, with elevation of pulmonary resistance in patients with a history of heart disease with short circuit from left to right. This pathology is of vital importance that its identification is made in initial stages, with the aim of preventing evolution to the point where medical treatment is insufficient, and as in the case to mention, the only remaining option would be lung and heart transplantation.

Keywords

Eisenmenger syndrome, congenital heart disease, hypoxia, diagnosis, treatment