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Art Valves: Difference between revisions
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==Postoperative ultrasound== | |||
After valve replacement have to be at the time that a patient is stable (hemodynamic and metabolism, "no anemia") to be an output echo is made for capturing of valve parameters. Here it is to calculate with use of the art valve diameter, a valve surface is important so that a size is recorded regardless of the cardiac output. (Fever creates a hyperdynamic circulation so the gradients will increase, not the calculated valve area). | |||
Bioprostheses also have their own characteristics that must be recorded postoperatively. Every patient has some hi-profile bioprostheses the struts and the structure of the stabbing valve in the outflow tract. It may be some LV outflow obstruction occur. The main problem with bioprostheses is the degeneration. This can be both progressive obstruction occur as tearing of leaflets which there is a major failure occurs. | |||
{| class="wikitable" cellpadding="0" cellspacing="0" border="0" | |||
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!Data needed for evaluation of mitraliskunstklep | |||
!Data needed for evaluation of aortic prosthetic valve | |||
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|Maximum and mean gradient | |||
|Maximum and mean gradient | |||
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|MVA calculated with VTI MV, VTI LVOT + LVOT diameter | |||
|AVA calculated with VTI Ao, LVOT VTI, valve size to use for LVOT diameter | |||
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|Pressure halftime | |||
|Paravalvular aoi | |||
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|Scanning valve ring for paravalvular leakage | |||
|Fistulas, abscesses | |||
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==References== | ==References== | ||