Pacing (TCP) & DC Cardioversion (DCCV)
🟦 Overview
🔹 Transcutaneous Pacing (TCP)
Temporary non-invasive pacing method.
Delivers electrical impulses via external chest pads.
Used for bradyarrhythmia’s with life-threatening features.
Bridge to transvenous pacing.
🔹 Direct Current Cardioversion (DCCV)
Delivers a synchronised shock with R-wave of QRS.
Used to restore sinus rhythm in certain tachyarrhythmias.
🟩 Indications
TCP
Bradycardia with any life-threatening feature:
o Shock
o Syncope
o Myocardial ischaemia
o Heart failure
High-risk of asystole:
o Recent asystole
o Mobitz II block
o Complete heart block + broad QRS
o Ventricular pause > 3 sec
DCCV
Unstable tachyarrhythmias (same 4 life-threatening features).
Stable tachyarrhythmias unresponsive to:
o Vagal manoeuvres
o Adenosine
o Flecainide
Atrial fibrillation/flutter (elective)
🟨 Contraindications
TCP
Absolute: Patient refusal
DCCV
Patient refusal
Uncorrected severe electrolyte disturbances
AF >48 hrs without ≥3 weeks anticoagulation
Left atrial thrombus