★ Last Updated : May 26th 2014 ★
- Sick sinus syndrome
- Class I :
- Symptomatic bradycardia (≤ 40/min) or pauses
- Symptomatic chronotropic incompetence
- Class II :
- Bradycardia + symptoms (with unclear association)
- Bradycardia + unexplained syncope
- Bradycardia + discrete symptoms
- Class I :
- Atrioventricular conduction defect
- Class I:
- 3rd degree AV block *
- Advanced 2nd degree AV block (≥ 2 P waves are blocked) *
- 2nd degree AV block (Mobitz I or II) with symptoms *
- Mobitz II + [widened QRS or bifascicular block] *
- Exercise-induced 2nd or 3rd degree AV block
- 3rd or 2nd degree Mobitz II AV block induced during an electrophysiological study (by pacing 100-120/min)
- Class II:
- Mobitz II with narrow QRS and no symptoms
- 1st degree AV block with hemodynamic compromise
- Bi or trifascicular block with [unclear syncope or VT] *
- Neurocardiogenic syncope
- Class I:
- Carotid sinus hypersensitivity (syncope and >3sec asystole)
- Class II:
- Unexplained syncope and >3sec of asystole following sinus massage
- Recurrent vasovagal syncope associated to documented bradycardia
(e.g. by a Tilt-test) - Diagnoses marked with an * require admission to a hospital where there is a possibility for acute PM implantation.
Abbreviation: AV= atrioventricular, PM=pacemaker
