Normal Values: Difference between revisions

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1,971 bytes added ,  15 September 2009
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{| class="wikitable" style="font-size:90%;"
{| class="wikitable" style="font-size:90%;"


|+'''caption'''
|+'''Application of specific and supportive signs, and quantitative parameters in the grading of aortic regurgitation severity'''
 
|-
! style="width:160px" |  
! style="width:250px" | Mild
! style="width:200px" colspan="2" | Moderate
! style="width:250px" | Severe
 
|-
! Specific signs for AR severity
| style="vertical-align:top" | <ul>
<li>Central Jet, width &lt; 25% of LVOT<sup>&sigmaf;</sup></li>
<li>Vena contracta &lt; 0.3 cm<sup>&sigmaf;</sup></li>
<li>No or brief early diastolic flow reversal in descending aorta</li>
</ul>
| style="vertical-align:top" colspan="2" | Signs of AR&gt;mild present but no criteria for severe AR
| style="vertical-align:top" | <ul>
<li>Central Jet, width &ge; 65% of LVOT<sup>&sigmaf;</sup></li>
<li>Vena contracta &gt; 0.6cm<sup>&sigmaf;</sup></li>
</ul>
 
|-
! Supportive signs
| style="vertical-align:top" | <ul>
<li>Pressure half-time &gt; 500 ms</li>
<li>Normal LV size<sup>&lowast;</sup></li>
</ul>
| style="vertical-align:top" colspan="2" | Intermediate values
| <ul>
<li>Pressure half-time &lt; 200 ms</li>
<li>Holodiastolic aortic flow reversal in descending aorta</li>
<li>Moderate or greater LV enlargement<sup>&lowast;&lowast;</sup></li>
</ul>
 
|-
| colspan="5" | '''Quantitative parameters<sup>&psi;</sup>'''
 
|-
| style="padding-left:12px" | R Vol, ml/beat
| align="center" | &lt; 30
| align="center" | 30-44
| align="center" | 45-59
| align="center" | &ge; 60
 
|-
| style="padding-left:12px" | RF %
| align="center" | &lt; 30
| align="center" | 30-39
| align="center" | 40-49
| align="center" | &ge; 50
 
|-
| style="padding-left:12px" | EROA, cm<sup>2</sup>
| align="center" | &lt; 0.10
| align="center" | 0.10-0.19
| align="center" | 0.20-0.29
| align="center" | &ge; 0.30
 
|-
| colspan="5" | <em>AR</em>, Aortic regurgitation; <em>EROA</em>, effective regurgitant orifice area; <em>LV</em>, left ventricle; <em>LVOT</em>, left ventricular outflow tract; <em>R Vol</em>, regurgitant volume; <em>RF</em>, regurgitant fraction.


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