A 59-year-old male with an implantable cardiac defibrillator, left ventricular assist device, and refractory ventricular tachycardia presented with hypoxemia due to a post-ablation iatrogenic atrial septal defect. Left ventricular assist devices generate pressure gradients that may exacerbate intracardiac shunts and can precipitate significant hypoxemia.
Keywords: arterial blood gas; atrial septal defect; catheter ablation; hypoxemia; implantable cardiac defibrillator; left ventricular assist device; transesophageal echocardiogram; ventricular tachycardia.
Copyright © 2023, Wang et al.