Virtual Pediatric Hospital(tm) : A digital library of pediatric information

Home | About | FAQ | Reviews | Search

Virtual Pediatric Hospital: Paediapaedia: Pulmonary Stenosis (PS) Paediapaedia: Cardiovascular Diseases

Pulmonary Stenosis (PS)

Michael P. D'Alessandro, M.D.
Peer Review Status: Internally Peer Reviewed

Clinical Presentation:
Usually asymptomatic with a systolic thrill associaed with an ejection type murmur heard best over the pulmonary area.

Can occur with the ventricle (infundibular stenosis), at the pulmon valve (valvular stenosis), or in the pulmonary artery (peripheral stenosis). Isolated valvular stenosis is much more common. Can occur by itself or in a complex isolated valvular stenosis. It is due to fusion of the 3 cusps of the valve. The stenosis leads to increased right ventricle end systolic pressure and right ventricular hypertrophy and then right ventricular dilation when the right ventricle decompensates.

Not applicable

Imaging Findings:
On the chest film post stenotic dilation of the main pulmonary artery is seen, especially in the left pulmonary artery because the jet of blood shoots straight into it. The heart is normal is size as is the pulmonary vascularity. Right ventricular hypertrophy does not change the size of the right ventricle but an upturned cardiac apex can be seen due to superior displacement of the left ventricle by the hypertrophied right ventricle.


See References Chapter.

Section Top | Title Page

Additional pediatric resources: | Facebook iconTwitter iconRSS icon |

Follow us on Twitter @pedseducationTwitter icon and @pedsimagingTwitter icon

About Us | FAQ | Reviews | Contact Us | Search

Virtual Pediatric Hospital is curated by Donna M. D'Alessandro, M.D. and by Michael P. D'Alessandro, M.D.

Please send us comments by filling out our Comment Form.

All contents copyright © 1992-2016 Donna M. D'Alessandro, M.D. and Michael P. D'Alessandro, M.D. and the authors. All rights reserved.

"Virtual Pediatric Hospital", the Virtual Pediatric Hospital logo, and "A digital library of pediatric information" are all Trademarks of Donna M. D'Alessandro, M.D. and Michael P. D'Alessandro, M.D.

Virtual Pediatric Hospital is funded in whole by Donna M. D'Alessandro, M.D. and Michael P. D'Alessandro, M.D. Advertising is not accepted.

Your personal information remains confidential and is not sold, leased, or given to any third party be they reliable or not.

The information contained in Virtual Pediatric Hospital is not a substitute for the medical care and advice of your physician. There may be variations in treatment that your physician may recommend based on individual facts and circumstances.