Inferior MI: Difference between revisions

Inferior MI (view source)

306 bytes added , 25 July 2007

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 '''ST elevation in II, III and aVF'''
-This part of the heart muscle lies on the diaphragm and is supplied of blood bij the right coronary artery (RCA) in 8% of patients. In the remaing 20% the inferior wall is supplied by the ramus circumflexus(RCX).
+This part of the heart muscle lies on the diaphragm and is supplied of blood bij the right coronary artery (RCA) in 80% of patients. In the remaing 20% the inferior wall is supplied by the ramus circumflexus(RCX).
-An occlusion of the RCA can be distinguished of a RCX occulsuion on the ECG: in a RCA occlusion, there is ST depression in I and AvL and the ST-elevation is higher in III than in II. If the elevation is higher in II, suspect a RCX occlusion.
+An occlusion of the RCA can be distinguished of a RCX occulusion on the ECG:<cite>Zimetbaum</cite>
+;Distal RCA occlusion (sens 90%, spec 71%)
+*ST segment elevation in III higher than ST segment elevation in II and
+*ST segment depression in I, AVL, or both (>1 mm)
+;Proximal RCA occlusion (sens 79%, spec 100%)
+*Additional ST segment elevation in V1, V4R or both
+;RCX occlusion (sens 83%, spec 96%)
+*ST segment elevation in I, AVL, V5, and V6 and
+*ST segment depression in V1, V2, and V3
 {{clr}}
 ==Examples==
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 Image:Ami0005.jpg|Posterior-lateral MI due to RCX occlusion
 </gallery>
+==References==
+<biblio>
+#Zimetbaum pmid=12621138
+</biblio>