Normal Values: Difference between revisions

Normal Values (view source)

1,100 bytes added , 15 September 2009

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-! style="width:250px" | Parameter
+! style="width:200px" | Parameter
-! style="width:250px" | Mild
+! style="width:200px" | Mild
-! style="width:250px" | Moderate
+! style="width:200px" | Moderate
-! style="width:250px" | Severe
+! style="width:200px" | Severe
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+| colspan="4" |
+<ul>
+<li><em>CW</em>, Continuous wave Doppler; <em>IVC</em>, inferior vena cava; <em>RA</em>, right atrium; <em>RV</em>, right ventricle; <em>VC</em>, vena contracta width.</li>
+<li><sup>&lowast;</sup> Unless there are other reasons for RA or RV dilation. Normal 2D measurements from the apical 4-chamber view: RV medio-lateral end-diastolic dimension &le; 4.3 cm, RV end-diastolic area &le; 35.5 cm<sup>2</sup>, maximal RA medio-lateral and supero-inferior dimensions &le; 4.6 cm and 4.9 cm respectively, maximal RA volume &le; 33 ml/m<sup>2</sup>(35;89).</li>
+<li><sup>&lowast;&lowast;</sup> Exception: acute TR.</li>
+<li><sup>&sect;</sup> At a Nyquist limit of 50-60 cm/s. Not valid in eccentric jets. Jet area is not recommended as the sole parameter of TR severity due to its dependence on
+hemodynamic and technical factors.</li>
+<li><sup>&Phi;</sup> At a Nyquist limit of 50-60 cm/s.</li>
+<li><sup>&psi;</sup> Baseline shift with Nyquist limit of 28 cm/s.</li>
+<li>&dagger; Other conditions may cause systolic blunting (eg. atrial fibrillation, elevated RA pressure).</li>
+</ul>
 |}