alexa Anatomic features of congenital pulmonary valvar stenosis.
Pediatrics

Pediatrics

Pediatrics & Therapeutics

Author(s): Gikonyo BM, Lucas RV, Edwards JE

Abstract Share this page

Abstract A total of 31 specimens of hearts with congenital pulmonary valvar stenosis were studied. To define the anatomy of the normal pulmonary valve, 210 specimens of hearts considered to have a normal pulmonary valve were also reviewed. On the basis of gross morphology of the valve leaflets and annulus, the stenotic valves were subgrouped into domed, unicommissural, bicuspid, tricuspid, hypoplastic annulus, and dysplastic. The valve leaflets in all subgroups were thickened. The thickness varied in degree, but involved the entire length of the leaflet. Microscopically, the thickness in most cases was due to an increase in myxomatous tissue. In a few cases, the elastic and collagen components of the leaflet were increased. The valve annulus was abnormal in most cases. The abnormalities included replacement of the fibrous backbone of the annulus by myxomatous tissue and partial or complete absence of the annulus. The impact on valvar anatomy by direct surgical valvotomy (14 patients) and closed Brock valvotomy (two patients) was reviewed. Precise knowledge of pulmonary valve anatomy is an aid to successful balloon pulmonary valvuloplasty. This article was published in Pediatr Cardiol and referenced in Pediatrics & Therapeutics

Relevant Expert PPTs

Relevant Speaker PPTs

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords