| Autor: |
McKay, Raymond G., Lock, James E., Safian, Robert D., Come, Patricia C., Diver, Daniel J., Baim, Donald S., Berman, Aaron D., Warren, Sanford E., Mandell, Valerie E., Royal, Henry D., Grossman, William |
| Zdroj: |
Journal of the American College of Cardiology; April 1987, Vol. 9 Issue: 4 p723-731, 9p |
| Abstrakt: |
Preliminary reports have documented the utility of percutaneous balloon valvuloplasty of the mitral valve in adult patients with mitral stenosis, but the mechanism of successful valve dilation and the effect of mitral valvuloplasty on cardiac performance have not been studied in detail. Accordingly, mitral valvuloplasty was performed in five postmortem specimens and in 18 adult patients with rheumatic mitral stenosis, using either one (25 mm) or two (18 and 20 mm) dilation balloons. Postmortem balloon dilation resulted in increased valve orifice area in all five postmortem specimens, secondary to separation of fused commissures and fracture of nodular calcium within the mitral leaflets. In no case did balloon dilation result in tearing of valve leaflets, disruption of the mitral ring or liberation of potentially embolic debris. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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