Characteristics and Outcomes of 30-Day Hospital Readmissions in Children with Pulmonary Hypertension: A Multi-Institutional Analysis

s S175 a 5-year survival of 96%. The remaining patients were not candidates for PEA due to the absence of sufficient symptoms (n= 6), comorbidities (n= 2) or distal disease (n= 2). The proportion of patients with no or borderline PH proceeding with PEA increased from 45% (n= 5/11) in 2005-2011 to 82% (n= 9/11) in 2012-2015 (p= 0.08), but remained a small percentage of all PEAs performed during the same period (7%). The age of patients undergoing PEA with no or borderline PH was similar to those undergoing PEA with PH (55±10 vs 58±14 years, p= 0.4). After a median follow-up of 27 (5-87) months, all patients with no or borderline preoperative PH are alive and well. Their NYHA functional class (1.4±0.5 vs 2.4±0.5, pu003c 0.0001) and RVSP (30±5 vs 35±9 mmHg, p= 0.08) improved compared to preoperative values. Conclusion: CTEPH can be detected in symptomatic patients with abnormal VQ scan despite the absence of PH on echocardiogram and benefit from PEA.