RT Book, Section A1 Lawrence, Cara L. A1 Kozik, Deborah J. A1 Plunkett, Mark D. A2 Yuh, David D. A2 Vricella, Luca A. A2 Yang, Stephen C. A2 Doty, John R. SR Print(0) ID 1104596491 T1 Pulmonary Stenosis and Pulmonary Atresia with Intact Ventricular Septum T2 Johns Hopkins Textbook of Cardiothoracic Surgery YR 2014 FD 2014 PB McGraw-Hill Education PP New York, NY SN 978-0-07-166350-2 LK accesssurgery.mhmedical.com/content.aspx?aid=1104596491 RD 2024/03/28 AB Pulmonary stenosisRight ventricular outflow tract (RVOT) obstruction at the level of the pulmonary valvePulmonary annulus may be stenotic or normal.Treatment is often with balloon valvotomy versus surgical valvotomy.Recurrent stenosis and insufficiency is common with surgical or balloon valvotomy.Pulmonary atresia (PA) with intact ventricular septum (IVS)Complex defect with complete absence of communication between right ventricle (RV) and pulmonary arteriesCharacterized by varying degrees of RV and tricuspid valve hypoplasiaMultiple surgical interventions common in childhoodSurgical treatment strategies based on size and development of RV and tricuspid valve