ST elevation myocardial infarction pacemaker implantation

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Overview
==ACC / AHA Guidelines- Permanent Pacing After the Acute Phase of Myocardial Infarction (DO NOT EDIT) == {{cquote|

Class I
1. Permanent ventricular pacing is indicated for persistent second-degree AV block in the His-Purkinje system with alternating bundle-branch block or third-degree AV block within or below the His-Purkinje system after ST-segment elevation MI. (Level of Evidence: B)

2. Permanent ventricular pacing is indicated for transient advanced second- or third-degree infranodal AV block and associated bundle-branch block. If the site of block is uncertain, an electrophysiological study may be necessary. (Level of Evidence: B)

3. Permanent ventricular pacing is indicated for persistent and symptomatic second- or third-degree AV block. (Level of Evidence: C)

Class IIb
1. Permanent ventricular pacing may be considered for persistent second- or third-degree infranodal AV block at the AV node level, even in the absence of symptoms. (Level of Evidence: B)

Class III
1. Permanent ventricular pacing is not indicated for transient AV block in the absence of intraventricular conduction defects. (Level of Evidence: B)

2. Permanent ventricular pacing is not indicated for transient AV block in the presence of isolated left anterior fascicular block. (Level of Evidence: B)

3. Permanent ventricular pacing is not indicated for new bundle-branch block or fascicular block in the absence of AV block. (Level of Evidence: B)

4. Permanent ventricular pacing is not indicated for persistent asymptomatic first-degree AV block in the presence of bundle-branch or fascicular block. (Level of Evidence: B)}}