QS-complex in V2, V3, V4. Q in V5 and ST-elevation. Anterolateral infarction Infarction of the anterior and lateral wall. Acute anterolateral infarction. The anteroseptal infarction has the worse prognosis, especially if it is accompanied by conduction disorders originating from the level of the bundle branches or fascicles.
Inferior infarction Is an infarction of the left ventricle which rest on the diaphragm.
These infarction are caused by the occlusion of the RCA or the Rcx. Posterior infarction Is an infarction of a part of the posterior wall of the left ventricle which is localized above the diaphragm. These infarction are caused by the occlusion of the RCA or the Rcx. Inferior and posterior have usually a good prognosis. Lateral infarction Is an infarction of the lateral wall of the left ventricle and is caused by the occlusion of one of the lateral branches of the RCA or the Rcx.