Pulmonary valve stenosis echocardiogram: Difference between revisions
Jump to navigation
Jump to search
| Line 50: | Line 50: | ||
|- | |- | ||
| bgcolor="LightGreen"|<nowiki>"</nowiki>'''2.'''A follow-up physical examination, echocardiography-Doppler, and ECG are recommended at 5-year intervals in the asymptomatic patient with a peak instantaneous valvular gradient by Doppler less than 30 mm Hg.''([[ACC AHA guidelines classification scheme#Level of Evidence|Level of Evidence: C]])'' <nowiki>"</nowiki> | | bgcolor="LightGreen"|<nowiki>"</nowiki>'''2.'''A follow-up physical examination, echocardiography-Doppler, and ECG are recommended at 5-year intervals in the asymptomatic patient with a peak instantaneous valvular gradient by Doppler less than 30 mm Hg.''([[ACC AHA guidelines classification scheme#Level of Evidence|Level of Evidence: C]])'' <nowiki>"</nowiki> | ||
|- | |||
| bgcolor="LightGreen"|<nowiki>"</nowiki>'''3.'''A follow-up echocardiography-Doppler is recommended every 2 to 5 years in the asymptomatic patient | |||
with a peak instantaneous valvular gradient by Doppler greater than 30 mm Hg''([[ACC AHA guidelines classification scheme#Level of Evidence|Level of Evidence: C]])'' <nowiki>"</nowiki> | |||
|} | |} | ||
Revision as of 19:00, 4 October 2012
|
Pulmonary valve stenosis |
|
Differentiating Pulmonary valve stenosis from other Diseases |
|---|
|
Diagnosis |
|
Treatment |
|
Case Studies |
|
Pulmonary valve stenosis echocardiogram On the Web |
|
American Roentgen Ray Society Images of Pulmonary valve stenosis echocardiogram |
|
Risk calculators and risk factors for Pulmonary valve stenosis echocardiogram |
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
Overview
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.
- Post stenotic pulmonary artery dilatation can be visualised sometimes.
Doppler Echocardiography
- 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 areaRVOT * VTIRVOT)/ VTIPV
- 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.
- Pulmonic Stenosis 1
<googlevideo>6761754875447006755&hl=en</googlevideo>
- Pulmonic Stenosis 2
<googlevideo>-5301172737736229119&hl=en</googlevideo>
- Pulmonic Stenosis 3
<googlevideo>-5141870933248575471&hl=en</googlevideo>
Severity Assessment
| Severity | mild | moderate | severe |
|---|---|---|---|
| Valve area | >1.0 | 1- 0.5 | <0.5 |
| Peak gradient (mm Hg) | <10-25 | 25-40 | >40 |
ACC / AHA Guidelines - Recommendations for Evaluation of the Unoperated Patient. (DO NOT EDIT)
| Class I |
| "1.Two-dimensional echocardiography-Doppler, chest x-ray, and ECG are recommended for the initial evaluation of patients with valvular PS.(Level of Evidence: C) " |
| "2.A follow-up physical examination, echocardiography-Doppler, and ECG are recommended at 5-year intervals in the asymptomatic patient with a peak instantaneous valvular gradient by Doppler less than 30 mm Hg.(Level of Evidence: C) " |
| "3.A follow-up echocardiography-Doppler is recommended every 2 to 5 years in the asymptomatic patient
with a peak instantaneous valvular gradient by Doppler greater than 30 mm Hg(Level of Evidence: C) " |