EnRhythm™ Pacing System

A New Era in Physiologic Pacing

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The first-ever pacemaker to include Managed Ventricular Pacing (MVP™), the EnRhythm™ Pacing System promotes intrinsic conduction and is clinically proven to significantly reduce unnecessary right ventricular (RV) pacing.¹

Growing evidence suggests that right ventricular pacing is associated with a variety of detrimental effects. Studies have shown that decreased ventricular pacing may result in decreased risks of heart failure hospitalization and atrial fibrillation.

Designed to Promote Natural Cardiac Function

MVP: Promotes Intrinsic Conduction

Managed Ventricular Pacing (MVP™) provides opportunity for your patient to conduct intrinsically while providing backup pacing if needed.

• Promotes intrinsic conduction
• Significantly reduces unnecessary right ventricular pacing ^1,3
• Primarily operates in AAI(R) pacing mode while providing the safety of dual chamber backup pacing support if necessary
• In the EnRhythm clinical trial, MVP Mode reduced right ventricular pacing to 1.6% (median) in all pacing indicated patients, including patients with advanced heart block. MVP Mode reduced right ventricular pacing to 0.5% (median) when patients with persistent 2nd and 3rd degree AV block were excluded.²

Cardiac Compass: More than a Year of Cardiac Insight

Diagnostic information helps you monitor the effectiveness of patient therapies.

• Cardiac Compass® graphically displays more than a year’s worth of a patient's clinical progress
  • Displays total amount of atrial and ventricular pacing
  • Provides information on AF burden for assessment of rhythm control
  • Displays ventricular rate during AT and AF episodes for assessment of rate control
  • Graphically displays patient’s average day and night ventricular rates, daily activity and monthly heart rate variability for detecting signs of worsening heart failure
• Stores up to 16.5 minutes of dual channel EGM with filtering capability
• Includes histograms containing “Prior to Last Session”and “Since Last Session”data to make medical therapy or device programming changes and confirm if previous changes have been effective

Reactive Atrial ATP: More Opportunities to Restore Sinus Rhythm

Reactive Antitachycardia Pacing (ATP) Therapies and Intervention Algorithms for atrial tachyarrhythmias offer your patient more opportunities to restore and maintain sinus rhythm.

• ATP quickly delivers painless therapies to the right atrium to restore sinus rhythm ^4,5
• 54% of device-defined atrial tachyarrhythmias are pace terminable ⁴
• Reactive ATP™ continuously monitors and responds to changes in the rate or regularity of AT episodes, and appropriately delivers atrial ATP therapies

Example of atrial ATP being delivered:

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References

1. Gillis AM et al, Reduction of Unnecessary Right Ventricular Pacing due to the Managed Ventricular Pacing (MVP) Mode in Patients with Symptomatic Bradycardia: Benefit for Both Sinus Node Disease and AV Block Indications. HRS. 2005 Abstract; AB21-1.
   
2. Medtronic EnRhythm Clinical Study, data on file.
   
3. Sweeney M, Shea J, Fox V, et al. Randomized pilot study of a new atrial-based minimal ventricular pacing mode in dual-chamber implantable cardioverter-defibrillators. Heart Rhythm. 2004;1:160-167.
   
4. Lee M, Weachter R, Pollack S, et al. The effect of atrial pacing therapies on atrial tachyarrhythmia burden and frequency. J Am Coll Cardiol. 2003;41:1926-1932.
   
5. Israel C. Success rate of automatic atrial antitachycardia pacing by a pacemaker implanted in patients with paroxysmal and persistent atrial tachyarrhythmia. Circulation. 2000;102(Supp II, No. 18). Abstract 3454.

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