FDA Adverse Event Malfunction Summary report: N

VITALITY

MDR report key: 2053551 · Received April 13, 2011

Report

Report Number
2124215-2011-03666
Event Type
Malfunction
Date Received
April 13, 2011
Date of Event
March 1, 2011
Report Date
March 14, 2011
Manufacturer
GUIDANT CRM CLONMEL IRELAND
Product Code
LWS
Product Problem
Yes
Report Source
Manufacturer report
Reporter Occupation
PHYSICIAN

Narratives

Additional Manufacturer Narrative · 1

UPON RECEIPT AT BOSTON SCIENTIFIC'S POST MARKET QUALITY ASSURANCE LABORATORY, A REVIEW OF DEVICE MEMORY REVEALED THAT ELECTIVE REPLACEMENT INDICATOR (ERI) WAS DECLARED AFTER EXPERIENCING TWO CHARGE TIMES GREATER THAN THE CHARGE TIME LIMIT. END OF LIFE (EOL) WAS DECLARED FOLLOWING A SINGLE CHARGE TIME GREATER THAN 30 SECONDS. TO DETERMINE IF THE DEVICE'S RATE OF BATTERY DEPLETION WAS WITHIN NORMAL LIMITS, OUR TECHNICIANS COMPARED THE OBSERVED RATE OF BATTERY USAGE TO THE EXPECTED RATE OF BATTERY USAGE. THE RESULTS SHOWED THAT THE MONITORING VOLTAGE WAS NORMAL BASED ON THERAPY USE AND PROGRAMMED SETTINGS. LABORATORY TECHNICIANS AND ENGINEERS CONCLUDED THAT THIS DEVICE DID NOT EXPERIENCE PREMATURE BATTERY DEPLETION. RATHER, THE ERI TO EOL TIME PERIOD WAS SHORTENED DUE TO A HIGHER-THAN-TYPICAL BUILD-UP OF INTERNAL BATTERY IMPEDANCE. THE DEVICE WAS CAPABLE OF DETECTING AND TREATING ARRHYTHMIAS, AS THE BATTERY ITSELF HAD SUFFICIENT CAPACITY REMAINING TO PROVIDE THERAPY IF NEEDED.

Additional Manufacturer Narrative · 1

UPON FURTHER ANALYSIS THIS INVESTIGATION WILL BE UPDATED.

Description of Event or Problem · 1

BOSTON SCIENTIFIC RECEIVED INFORMATION THAT THIS IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (ICD) WAS RETURNED WITH NO ALLEGATION. THE DEVICE HAD AN OUT OF SPECIFICATION CONDITION SUGGESTING A POSSIBLE DEVICE MALFUNCTION. FURTHER ANALYSIS WILL BE CONDUCTED. NO ADVERSE PATIENT EFFECTS WERE REPORTED.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
1 VITALITY IMPLANTABLE CARDIOVERTER DEFIBRILLATOR LWS GUIDANT CRM CLONMEL IRELAND 1871

Patients

Seq Age Sex Outcome Treatment
1 52 YR 0148| 4087| 1871