Abstract
Pulmonic valve echograms were examined in 24 normal subjects, 17 patients with valvular pulmonic stenosis (VPS) and 3 with infundibular nulmonic stenosis (IPS). In normals atrial contraction produced a slight mean 3.7±1.2mm (range 2–7 mm) posterior or opening motion of the pulmonic leaflet (“a” wave). In all cases with moderate or severe VPS, increased force of right atrial contraction and elevated right ventricular end diastolic pressure resulted in an increased posterior or opening motion of the leaflet, averaging 9.5±1.9 mm (range 8–13 mm, p.001). When both anterior and posterior leaflets were recorded, pre-systolic opening or doming of the valve was observed. In 6 cases of mild VPS mean ’a” wave depth was 4±2.5 mm, p=NS. With IPS marked, chaotic svstolic fluttering of the valve leaflet, which lies in the turbulent stream of blood distal to the obstruction, was recorded. This finding was never seen with VPS. In 2 cases of mild IPS “a” waves were in the normal range (3 & 7 mm).
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1975 American Institute of Ultrasound in Medicine and Plenum Press, New York
About this chapter
Cite this chapter
Dillon, J.C., Weyman, A.E., Feigenbaum, H., Chang, S. (1975). Echocardiographic Differentiation of Infundibular from Valvular Pulmonic Stenosis. In: White, D. (eds) Ultrasound in Medicine. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-4443-8_27
Download citation
DOI: https://doi.org/10.1007/978-1-4613-4443-8_27
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-4445-2
Online ISBN: 978-1-4613-4443-8
eBook Packages: Springer Book Archive