Micra AV and Micra VR leadless pacemakers for bradyarrhythmia management

The Micra™ AV and Micra™ VR leadless pacemakers are implantable, programmable cardiac devices used to monitor and regulate a patient’s heart rate.

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Micra AV and Micra VR transcatheter pacing systems for bradyarrhythmia management

Alert Indications, Safety, and Warnings

Overview

World's smallest

The miniaturized Micra AV and Micra VR* leadless pacemakers are the world's smallest pacemakers¹ for bradyarrhythmia management, delivered percutaneously via a minimally invasive approach and do not require the use of leads.

Model specifications

Parameter	Micra AV²	Micra VR³
Pacing mode	VVI, VVIR, VOO, OVO, VDD, VDI, ODO, OFF	VVI, VVIR, VOO, OVO, OFF
Mass	1.75 g	1.75 g
Volume	0.8 cc	0.8 cc
Electrode spacing	18 mm	18 mm
Battery longevity	8–13 years^†2,4	12 years^‡5
Accelerometer-based mechanical atrial sensing	Yes	N/A
Accelerometer-based rate response	Yes	Yes
MRI SureScan^™	1.5T & 3T	1.5T & 3T
CareLink^™ remote monitoring	Yes	Yes

View device details

pdf Micra AV transcatheter pacing system (.pdf)

154KB

pdf Micra delivery catheter (.pdf)

163KB

pdf Micra VR transcatheter pacing system (.pdf)

601KB

pdf Micra introducer sheath (.pdf)

85KB

Meet our next generation of Micra leadless pacemakers:

Micra™ AV2 and Micra™ VR2

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800-505-4636

Educational resources on Medtronic Academy

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The single chamber Micra™ transcatheter pacing system is being described herein as Micra™ VR in order to distinguish it from the dual chamber (VDD) Micra™ AV product. When information in this document relates to both Micra AV and VR, “Micra™ transcatheter pacing systems” is used to represent the portfolio of devices.

^†

Use conditions include:
8 years = 100% VDD pacing, 60 bpm, pacing threshold 1.5 V, impedance 500 Ω, pulse width 0.24 ms.
13 years = 15% VDD pacing, 70 bpm, pacing threshold 1.5 V, impedance 600 Ω, pulse width 0.24 ms.

^‡

Use conditions included: median pacing 53.5%, median pacing threshold 0.50 V, median impedance 543 Ω; 89% of patients with > 10-year projected longevity; 99% of patients with > 5-year longevity.⁵

References

Nippoldt D, Whiting J. Micra Transcatheter Pacing System Device Volume Characterization Comparison. November 2014. Medtronic data on file.

Medtronic Micra™ AV MC1AVR1 Device Manual. January 2020.

Medtronic Micra™ MC1VR01 Clinician Manual. October 2016.

⁴

Pender J, Whiting J. Micra AV Battery Longevity. January 2020. Medtronic data on file.

⁵

Duray GZ, Ritter P, El-Chami M, et al. Long-term performance of a transcatheter pacing system: 12-Month Results from the Micra Transcatheter Pacing Study. Heart Rhythm. May 2017;14(5):702–709.