Pulmonary valve stenosis echocardiogram: Difference between revisions

	Pulmonary valve stenosis
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Revision as of 19:05, 23 June 2011

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Thickened leaflets with systolic bowing in valvular stenosis.
Difficult to distinguish between valvular, sub valvular and supra valvular stenosis with 2D echocardiography.
Post stenotic pulmonary artery dilatation can be visualised sometimes.

Ante grade velocity increased with corresponding maximum and mean pressure gradients.
Pulmonary valve area can be calculated using the continuity equation.

Pulmonary Valve Area = (Cross sectional area_RVOT * VTI_RVOT)/ VTI_PV

The site of obstruction can be difficult to diagnose by 2D echo. Cautious use of colour flow mapping and PW Doppler can pin point the location of obstruction.

**Severity of pulmonic stenosis**
Severity	mild	moderate	severe
Valve area	>1.0	1- 0.5	<0.5
Peak gradient (mm Hg)	<10-25	25-40	>40

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-[[Pulmonary valve stenosis diagnosis#Symptoms|Symptoms]]
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 {{CMG}}
-==[[Echocardiography]]==
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-=== 2D echocardiography ===
+===2D [[echocardiography]]===
 *Thickened leaflets with systolic bowing in valvular stenosis.
 *Difficult to distinguish between valvular, sub valvular and supra valvular stenosis with 2D echocardiography.