Page 26 - Journal of Structural Heart Disease Volume 4, Issue 4

Meeting Abstracts
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into three groups: <1.2, 1.2 – 1.4, and ≥1.4. In 68.67% of patients, the BTA ratio was between 1.2 – 1.4. BTA ratio was further divided based on valve morphology. Mean BTA ratio in patients with dysplastic valves was 1.3±0.2, and 1.28±0.1 (p=0.526) in non-dysplastic cases. Mean pre-BPV peak pulmonary valve gradient (PVG) was 71±20.69 and post-BPV PVG was 30.75±20.69mmHg (p=0.0001). Average RV to aortic pressure ratio pre-BPV was 101.9±43.24%, and post-BPV was 59.22±22.77% (p=0.0001). The success rate in this cohort was 72.3%. Success rate in patients with dys- plastic valves was 54.1% compared to 85.4% in non-dys- plastic valves. Overall success in patients <3months of age was 76.7%. Average percent reduction (PR) in RV/AO ratio was 38.92%±18.02. Mean PR of RV/AO in patients ≤3months of age was 43.59±17.57%, compared to those >3months, 33.83±17.15% (p=<0.0001). Mean PR reduction in the dysplastic group was 32.79±18.84%, compared to non-dysplastic group 43.52±16.25% (p=<0.0001).
Conclusions: BPV is e ective and safe in treating PV steno- sis with good acute outcome. It's more e ective in younger patients with non-dysplastic PV.
30. RETROPERITONEAL HEMORRHAGE ASSOCIATED WITH PEDIATRIC AND CONGENITAL CARDIAC CATHETERIZATION
Grace Wang1, Lisa Bergersen1,2, Ryan Callahan1,2, Jesse Esch1,2, Diego Porras1,2
1Boston Children's Hospital, Boston, USA. 2Harvard Medical School, Boston, USA
Objectives: We aimed to describe the clinical presenta- tion, risk factors, management strategies, and outcomes of retroperitoneal hemorrhage (RPH) associated with cardiac catheterization in patients with pediatric and congenital heart disease.
Background: RPH is a rare but serious complication of car- diac catheterization. Data regarding incidence, manage- ment, and outcomes in this population is limited.
Methods: Retrospective review of all patients that under- went catheterization with femoral access at Boston Children’s Hospital from January 2005 to July 2017 and had a documented RPH adverse event. Patients were fur- ther categorized as having major or minor RPH based on a modi cation of the widely used Standardized Bleeding De nitions for Cardiovascular Clinical Trials4.
Results: Among 15,187 catheterizations performed using femoral access during the study period, we identi ed 24 patients with RPH (0.16%), 11 major RPH (0.07%). 8 patients underwent invasive management (6 catheter-based, 1 surgical, 1 catheter-based and surgical). There were 3 deaths in the cohort (13%). By univariate analysis, patient and procedure related factors associated with major RPH included pre-procedure anticoagulation use (p = 0.03)
30. Figure 1. Balloon dilatation during PTMC. Journal of Structural Heart Disease, August 2018
Volume 4, Issue 4:114-206