Transcatheter closure of five atrial septal communications in the presence of severe pulmonary arterial hypertension and severe left ventricular non-compliance.

Closure of congenital atrial communications in the presence of either severe pulmonary arterial hypertension (PAH) with pulmonary-to-systemic (right-to-left) shunting, or severe left ventricular (LV) non-compliance with left-to-right shunting is often considered prohibitive. Thus, the recognition of durable reversibility of these physiologic conditions is crucial. We describe a hemodynamic conundrum in a patient with five septal communications in whom the coexistence of unmasked bidirectional physiologic shunting, severe PAH, and worsening left-sided overload dissuaded initial closure. We report our strategy for hemodynamic evaluation and successful closure of all defects.