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CRT Product Longevity
U.S. Reason for Out of Service

CRM Product Performance Report Q4 2011

COGNIS

Models N118/N119/N120/P106/P107/
            P108



U.S. Summary
U.S. Registered Implants: 66,000
U.S. Approval Date: May 2008
U.S. Estimated Active Implants: 55,000
U.S. Normal Battery Depletions: 32
U.S. Unconfirmed Reports of
Premature Battery Depletion
: 9
U.S. Malfunctions:92
Without Compromised Therapy:53
With Compromised Therapy:39
Battery Depletions and Malfunctions


Malfunctions Only
U.S. Survival Probability
 Year 1 2 34 56 78 910
Non Advisory Population

Registered Implants: 34000
Depletions and Malfunctions(%)
(Confidence Interval)
99.93
(-0.0/+0.0)
99.90
@ 21 mo.

(-0.1/+0.0)
 Malfunctions Only(%)
(Confidence Interval)
99.96
(-0.0/+0.0)
99.94
@ 21 mo.

(-0.1/+0.0)
  Effective Sample Size 12588213
Advisory: 01-Dec-09 (Subpectoral Implant 2009)*

Registered Implants: 50000
Depletions and Malfunctions(%)
(Confidence Interval)
99.79
(-0.1/+0.0)
99.66
(-0.1/+0.1)
99.41
(-0.2/+0.2)
99.41
@ 38 mo.

(-0.2/+0.2)
 Malfunctions Only(%)
(Confidence Interval)
99.81
(-0.1/+0.0)
99.74
(-0.1/+0.1)
99.67
(-0.1/+0.1)
99.67
@ 38

(-0.1/+0.1)
  Effective Sample Size 27572188812251470

*Devices subject to an advisory. Refer to the Advisories for more details.