Pulmonary Valvar Stenosis and Pulmonary Valvar Atresia with Intact Ventricular Septum (PA-IVS)
Introduction
Isolated right ventricular outflow tract obstruction (RVOTO) consists of a broad spectrum of anatomic lesions ranging from mild valvar pulmonary stenosis (PS) to pulmonary atresia (PA) with associated right-sided cardiac defects.
The "morphologically right ventricle" is a ventricle with the following characteristics, regardless of its anatomic position in the body:
- the ventricular septal surface is coarsely trabeculated,
- the inlet (atrioventricular) valve is of tricuspid morphology and has chordal attachments to the ventricular septal surface (the inlet atrioventricular valve of the right ventricle is septophillic).
Specific lesions discussed in this chapter include:
- Pulmonary atresia with intact ventricular septum (PA/IVS)
- Neonatal critical PS
- Valvar PS beyond the neonatal period
- Isolated supravalvar pulmonary stenosis
- Isolated subvalvar pulmonary stenosis
- Peripheral pulmonary artery stenosis
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Last updated: April 20, 2022
Citation
Guleserian, Kristine J, and Raghav A Murthy. "Pulmonary Valvar Stenosis and Pulmonary Valvar Atresia With Intact Ventricular Septum (PA-IVS)." Adult and Pediatric Cardiac Surgery. STS Cardiothoracic Surgery E-Book, Chicago: Society of Thoracic Surgeons, 2022. STS Surgery, ebook.sts.org.
Guleserian KJ, Murthy RA. Pulmonary Valvar Stenosis and Pulmonary Valvar Atresia with Intact Ventricular Septum (PA-IVS). In: Baumgartner WA, Jacobs JP, Darling GE, eds. Adult and Pediatric Cardiac Surgery. STS Cardiothoracic Surgery E-Book. Chicago: Society of Thoracic Surgeons; 2022. ebook.sts.org. Accessed May 30, 2023.
Guleserian, K. J., & Murthy, R. A. (2022). Pulmonary Valvar Stenosis and Pulmonary Valvar Atresia with Intact Ventricular Septum (PA-IVS). In Baumgartner, W., Jacobs, J., & Darling, G. (Eds.), Adult and Pediatric Cardiac Surgery. STS Cardiothoracic Surgery E-Book. Chicago: Society of Thoracic Surgeons. ebook.sts.org
Guleserian KJ, Murthy RA. Pulmonary Valvar Stenosis and Pulmonary Valvar Atresia With Intact Ventricular Septum (PA-IVS) [Internet]. In: Baumgartner WA, Jacobs JP, Darling GE, editors. Adult and Pediatric Cardiac Surgery. STS Cardiothoracic Surgery E-Book. Chicago: Society of Thoracic Surgeons; 2022. [cited 2023 May 30]. Available from: ebook.sts.org.
* Article titles in AMA citation format should be in sentence-case
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T1 - Pulmonary Valvar Stenosis and Pulmonary Valvar Atresia with Intact Ventricular Septum (PA-IVS)
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PB - Chicago: Society of Thoracic Surgeons
DB - STS Surgery
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