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Active Resynchronization
“The sudden loss of CRT during exercise might prevent the patient from experiencing prolonged, and eventually, beneficial physical activity.”1
The Brady Tachy Overlap - CRT during rest and excercise
CRT patients exercise too – to achieve prolonged exercise benefit, CRT patients need to be resynchronized at increased heart rates.
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BTO unlocks pacing and detection and can maintain resynchronization support up to 145 beats per minute.
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Resynchronization is maintained during exercise without restrictive programming interlocks with slow VT detection.
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Slow VT is more prevalent as LV function deteriorates.2
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Brady Tachy Overlap (BTO) is a solution that allows detection and painless therapy for slow VTs with rates as low as 100 beats per minute while still maintaining CRT up to 145 bpm.
Indications, contraindications, warnings and precautions
1. Auricchio, A., et al. Exercise Performance Following Cardiac Resynchronization Therapy In Patients With Heart Failure and Ventricular Conduction Delay. The American Journal of Cardiology, Vol. 89, January 15, 2002.
2. Sadoul N., Mletzko R., Anselme F., for the Slow VT Study Group Incidence and Clinical Relevance of Slow Ventricular Tachycardia in Implantable Cardioverter-Defi brillator Recipients: An International Multicenter Prospective Study. Circulation 2005; 112:946-53.
