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EKG changes in myocardial infarction - Revision history
2026-04-08T01:31:52Z
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<p>Imported from text file</p>
<p><b>New page</b></p><div>== Location ==<br />
<br />
{|<br />
! Leads involved<br />
! Distribution<br />
! Artery involved<br />
|-<br />
| II, III, aVF<br />
| Inferior<br />
| RCA<br />
|-<br />
| V3, V4<br />
| Anteroapical<br />
| Distal LAD<br />
|-<br />
| V1, V2<br />
| Anteroseptal<br />
| LAD<br />
|-<br />
| I, aVL, V5, V6<br />
| Anterolateral<br />
| Circumflex<br />
|-<br />
| I, aVL, V2-V6<br />
| Anterior<br />
| Proximal LCA<br />
|-<br />
| Tall R-wave in V1<br />
| Posterior<br />
| RCA<br />
|}<br />
<br />
== 12-Lead ==<br />
<br />
{|<br />
! ECG<br />
!<br />
!<br />
!<br />
|-<br />
| '''I'''<br />
| '''aVR'''<br />
| '''V1'''<br />
| '''V4'''<br />
|-<br />
| Lateral (Cx)<br />
|<br />
| Septal (LAD)<br />
| Anterior (LAD)<br />
|-<br />
| '''II'''<br />
| '''aVL'''<br />
| '''V2'''<br />
| '''V5'''<br />
|-<br />
| Inferior (RCA)<br />
| Lateral (Cx)<br />
| Septal (LAD)<br />
| Lateral (Cx)<br />
|-<br />
| '''III'''<br />
| '''aVF'''<br />
| '''V3'''<br />
| '''V6'''<br />
|-<br />
| Inferior (RCA)<br />
| Inferior (RCA)<br />
| Anterior (LAD)<br />
| Lateral (Cx)<br />
|}<br />
<br />
== Progression ==<br />
<br />
* ** Hyperacute T-waves (minutes)<br />
* ST elevation (minutes)<br />
* Biphasic T-waves (hours)<br />
* T-wave inversion (hours to months)<br />
* Q-waves (days)<br />
<br />
[[Category:Cardiology]]</div>
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