DOUBLE WHAMMY: IATROGENIC ATRIAL SEPTAL DEFECT AND AN UNRECOGNIZED PATENT FORAMEN OVALE CAUSING CHRONIC HYPOXEMIC RESPIRATORY FAILURE

Hypoxemic respiratory failure (HRF) due to iatrogenic transseptal puncture-induced intra-cardiac shunting in the presence of patent foramen oval (PFO) is uncommon and challenging to diagnose. A 65 year-old female with 2 atrial fibrillation (AF) ablations history presented multiple times with HRF