ShockGuard is designed to reduce inappropriate and unnecessary shocks for patients with new and existing Unify cardiac resynchronization therapy defibrillators (CRT-Ds) and Fortify implantable cardioverter defibrillators (ICDs).

The Unify CRT-D and Fortify ICD with ShockGuard technology features DecisionTx programming that discriminates between rhythms that require defibrillation therapy and those that do not.

The ShockGuard technology with DecisionTx programming offers advanced sensing technology designed to avoid sensing unwanted signals (T-waves) and more anti-tachycardia pacing options, which can convert many fast ventricular arrhythmias painlessly and avoid the need for high voltage shocks.

St Jude Medical Cardiac Rhythm Management Division president Eric Fain said the goal for this innovative technology was to address one of the most significant clinical challenges facing physicians today, how to reduce not only instances of inappropriate therapy, but also reduce shocks for VT and VF episodes, which may be associated with worse outcomes.