Talk:Mitral stenosis

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[edit] When

When we get to mentioning the echo scoring technique to determine who should go for percutaneous mitral valvotomy for mitral stenosis, mention the following references and text:

1. Wilkins GT, Weyman AE, Abascal VM, Block PC, Palacios IF. Percutaneous balloon dilatation of the mitral valve: an analysis of echocardiographic variables related to outcome and the mechanism of dilatation. Br Heart J. 1988 Oct;60(4):299-308. (Medline abstract)
2. Abascal VM, Wilkins GT, O'Shea JP, Choong CY, Palacios IF, Thomas JD, Rosas E, Newell JB, Block PC, Weyman AE. Prediction of successful outcome in 130 patients undergoing percutaneous balloon mitral valvotomy. Circulation. 1990 Aug;82(2):448-56. (Medline abstract)

Scoring based on 4 criteria: leaflet mobility, leaflet thickening, subvalvar thickening, and calcification.1 Individuals with a score of ≥ 8 tended to have suboptimal results.2 Superb results with valvotomy are seen in individuals with a crisp opening snap, score < 8, and no calcium in the commisures.

Contraindications to percutaneous mitral valvotomy include more than 2+ mitral regurgitation and left atrial thrombus.

Moved into the article.Ksheka 11:38, Sep 6, 2004 (UTC)

[edit] Pressures

I disagree with the article's statement:

"Under normal conditions, a normal mitral valve will not impede the flow of blood from the left atrium to the left ventricle during (ventricular) diastole, and the pressures in the left atrium and the left ventricle during diastole will be equal."

Sure, there may be an instant (so small) when the pressure between the left atrium and the left ventricle are the same. But for the overwhelimng majority of the time, when blood flows towards the left ventricle, even before the left atrium's contraction, the pressure is lower in the left ventricle then in the left atrium (see graph). --Bobjgalindo 21:23, 10 September 2007 (UTC)