Medtronic CRM Product Performance Report

4951, 4951M Spectraflex

    Product Characteristics
US Market Release Oct-81   Serial Number Prefix TF or LBJ
Registered US Implants 23,100   Type and/or Fixation Myocardial Stab-in, V or A, Peds
Estimated US Active Implants 2,500   Polarity Unipolar
Advisories None   Steroid No

 

System Longevity Study Results  
US Returned Product Analysis
Implant Damage 15
Electrical Malfunction 97
Other 28
Number of Leads Enrolled in Study 179
Cumulative Months of Follow-Up 6,512
Number of Leads Active in Study 4
     
Qualifying Complications 10 Total  
Failure to Capture 4  
Failure to Sense 3  
Impedance Out of Range 1  
Insulation (ESC) 1  
Insulation (not further defined) 1  
     

Survival Estimate of 4951, 4951M Spectraflex Leads