Figure 30.

Device configuration for CSP according to device indication, underlying rhythm (i.e. requirement for an atrial lead), presence on an additional ventricular lead. In all cases with a CSP lead plugged to the RV port, adequate sensing must be ensured. Not shown here are additional configurations with Y adapters and HOT-CRT with a His lead in combination with an RV lead only (which may be used in case of uncorrected selective His capture with isolated right bundle branch block¹¹¹). ¹Additional ventricular lead may be indicated for ICD therapy, back-up pacing, adequate ventricular sensing, or CRT optimization. ²The LV lead is plugged to the RV port in case the CSP lead does not provide proper sensing (atrial or His potential oversensing and ventricular undersensing are issues that may be encountered with HBP). *DF-1 ICD lead may also be used; ^#IS-1 LV lead may also be used. A = atrial; AF = atrial fibrillation; CRT = cardiac resynchronization therapy; CSP = conduction system pacing; HOT/LOT-CRT = His-optimized or left bundle pacing-optimized CRT; ICD = implantable cardioverter defibrillator; LV = left ventricle; PM = pacemaker; RA = right atrial; RV = right ventricle.