C174AWK Concerto CRT-D DR AT
Cardiac Resynchronization Therapy - Defibrillation (CRT-Defib)
Non-Advisory Population
C174AWK Concerto CRT-D DR AT

Device Survival Probability

    1 yr 2 yr 3 yr 4 yr 5 yr at 66 mo        
% Excluding Normal Battery Depletion 100.0 99.8 99.5 98.4 96.9 96.9        
% Including Normal Battery Depletion 99.8 98.3 93.4 79.1 44.1 11.1        
#   72840 64155 53986 39678 12806 1364        
  • Including Normal Battery Depletion – This curve includes devices that have reached at least 80% of expected longevity. This curve is most representative of clinical performance and how long the device will last.
  • Excluding Normal Battery Depletion – This is the malfunction free survival curve.

Performance Notes For This Model

    • There are no performance notes for this model.

Product Characteristics

Generator Type CRT-Defib
Max. Delivered Energy 35 J
Connector Style CRT-D Style
Serial Number Prefix PVU
Mass 68 g
Volume 38 cc
Waveform Biphasic
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CRT-D Style

Estimated Longevity

Charging Frequency 100% Pacing 50% Pacing 15% Pacing 100% Sensing
Monthly 3.8 4.3 4.8 5.0
Quarterly 5.5 6.8 8.0 8.8
Semi-annual 6.3 8.0 9.8 10.9

Longevity estimates based on the following device usage. Pacing Mode DDD; Atrial Lower Pacing Rate 60ppm; Ventricular Lower Pacing Rate 60ppm; Atrial Pulse Width 0.4ms; Ventricular Pulse Width 0.4ms; Atrial Pulse Amplitude 3V; Ventricular Pulse Amplitude 3V; Atrial Impedance 510ohms; Ventricle Impedance 510ohms; Atrial Sensing Rate 70bpm; Ventricle Sensing Rate 70bpm; EGM prestorage OFF; Intergrated bi-ventricular pacing RV+LV; Left Ventricle Impedance 510ohms; Left Ventricular Pulse Width 0.4ms; Left Ventricular Pulse Amplitude 3V; Optivol ON; Atrial Fib percentage of time 0%; Charging frequency assumes maximum energy charge and includes therapy shocks and capacitor formation. Hide this content


EOS Indication

From the point that the RRT is set, the pacemaker will operate for approximately three months for typical pacemaker configurations during the normal operating life.


Distribution Data

US Market Release
CE Approval Date2006-03-07
Registered USA Implants5
Estimated Active USA Implants3
Normal Battery Depletions
US Market Release
CE Approval Date2006-03-07
Estimated WW Distribution20242
Normal Battery Depletions594

Malfunctions (USA)

Therapy Function Not Compromised
Therapy Function Compromised

Malfunctions (WW)

Therapy Function Not Compromised 138
Electrical Component 109
Electrical Interconnect 2
Possible Early Battery Depletion 26
Other 1
Therapy Function Compromised 6
Electrical Component 6

Recommended Replacement (RRT)

Battery voltage less than 2.62 V or Charge Time greater than 16 seconds.


Charge Time


Data as of January 31, 2014

www.medtronic.com/productperformance 301050