Page 52 - Journal of Structural Heart Disease Volume 4, Issue 4

Meeting Abstracts 154
75. Figure. Patient with recurrent right pulmonary vein stenosis. Sti wire positioning could not be maintained due to di cult course and small distal vessels. Successful angioplasty accomplished with anchored Wholey wire.
Methods: This study was designed as a case-control study. 331 children with CHD were selected as the study subjects. 331 healthy children living in the same environment, age, and gender were selected as the control group. A face-to- face questionnaire survey was conducted on the mother's risk factors. Analysis of risk factors using multivariate logis- tic regression analysis.
Results: Cold during pregnancy (OR=32.660, 95%CI: 2.843~376.319), use of antibiotics during pregnancy (OR=14.645, 95%CI: 1.152~55.074), maternal passive smok- ing during pregnancy (OR=5.288, 95%CI: 1.076~25.995 ), fathers drinking (OR = 9.903, 95%CI: 2.860~ 34.293), patient parity (OR = 3.834, 95%CI: 1.923~7.644) as a risk factor for CHD, can increase the risk of fetal CHD, the mother during pregnancy Acceptance of health education as a protective factor (OR = 0.002, 95% CI: 0.000~0.028).
Conclusion: The incidence of CHD in Tibet is related to the exposure of risk factors during peri-pregnancy. Actively conducting health education and taking targeted preven- tion and control measures will help reduce the incidence of CHD in this area.
77. QUANTIFICATION OF IMPROVEMENT IN PULMONARY VASCULAR RESISTANCE AFTER RELIEF OF FONTAN OBSTRUCTION
Joshua Yell1, Michael Seckeler2
1University of Arizona College of Medicine-Tucson, Tucson, USA. 2Department of Pediatrics (Cardiology), Banner University Medical Center/University of Arizona, Tucson, USA
Background: Patients with single ventricle congenital heart disease undergo staged surgical palliation through Fontan completion. Reliance on passive pulmonary arte- rial ow leads to systemic ventricular preload and cardiac index (CI) becoming primarily determined by pulmonary vascular resistance (PVR). Pulmonary vasodilators, such as Sildena l, appear to improve CI by lowering PVR. Lower Fontan pressure has been shown after relieving stenoses within the Fontan, but to date the e ect on PVR has not been quanti ed. The purpose of this study is to report the improvement in PVR after relief of Fontan stenosis.
Methods: Retrospective, single-center review was con- ducted with 3 patients post-Fontan who underwent car- diac catheterization with hemodynamics, pulmonary vasodilator testing and stenting of stenosis in the Fontan conduit from January 2017 – February 2018. All proce- dures were performed under general anesthesia. Baseline hemodynamics were obtained on 21% FiO2, followed by administration of 80 ppm iNO for 5 minutes with repeat
Journal of Structural Heart Disease, August 2018
Volume 4, Issue 4:114-206