Table 4

Situations where temporary pacing is not indicated

Acute myocardial infarction (Class III ACC/AHA) 3
• First degree heart block
• Type I 2nd degree heart block (Wenckebach) with normal haemodynamics
• Accelerated idioventricular rhythm
• Bundle branch block or fascicular block known to exist before acute MI
Bradycardia not associated with acute myocardial infarction
• Sinus node disease without haemodynamic compromise or syncope at rest
• Type II 2nd degree or 3rd degree heart block (constant or intermittent) without haemodynamic compromise, syncope or associated ventricular tachyarrhythmias at rest