FDA Adverse Event Injury Summary report: N

COGNIS

MDR report key: 3212975 · Received July 9, 2013

Report

Report Number
2124215-2013-10095
Event Type
Injury
Date Received
July 9, 2013
Date of Event
June 17, 2013
Report Date
October 8, 2013
Manufacturer
GUIDANT CRM CLONMEL IRELAND
Product Code
LWP
Removal / Correction Number
Z-0025-2014
Adverse Event
Yes
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
KY
Reporter Occupation
PHYSICIAN

Narratives

Additional Manufacturer Narrative · 1

UPON RECEIPT AT OUR QUALITY ASSURANCE LABORATORY, THIS DEVICE WAS THOROUGHLY INSPECTED AND ANALYZED. REVIEW OF THE DEVICE MEMORY CONFIRMED THREE LOW VOLTAGE BATTERY FAULTS (FAULT CODE 1003) HAD BEEN RECORDED. EXTERNAL VISUAL INSPECTION OF THE DEVICE NOTED NO ANOMALIES. INITIAL AUTOMATED TESTING VERIFIED BASIC SENSING, PACING AND SHOCKING FUNCTIONS OF THE DEVICE. AFTER THE TITANIUM CASE WAS OPENED, MICROSCOPIC VISUAL INSPECTION DID NOT REVEAL ANY IRREGULARITIES. THE BATTERY WAS THEN REMOVED, SO THAT AN EXTERNAL POWER SUPPLY COULD BE CONNECTED TO THE DEVICE FOR FURTHER ANALYSIS. A HIGHER THAN NORMAL CURRENT USAGE WAS OBSERVED. ELECTRICAL TESTING ISOLATED THE HIGH CURRENT CONDITION TO TWO COMPROMISED LOW VOLTAGE CAPACITORS THAT ARE CONNECTED TO THE DEVICE¿S BATTERY. THIS TYPE OF COMPONENT MALFUNCTION CAN RESULT IN A HIGH CURRENT DRAIN, WHICH OVER TIME CAN RESULT IN PREMATURE BATTERY DEPLETION, AS WAS OBSERVED IN THIS CASE.

Additional Manufacturer Narrative · 1

AT THIS TIME THIS PRODUCT HAS NOT BEEN RETURNED TO BOSTON SCIENTIFIC FOR ANALYSIS. THIS INVESTIGATION WILL BE UPDATED SHOULD FURTHER INFORMATION BE PROVIDED.

Additional Manufacturer Narrative · 1

(B)(4). BOSTON SCIENTIFIC HAS ISSUED AN ADVISORY COMMUNICATION REGARDING AN OLDER SUBSET OF COGNIS/TELIGEN DEVICES THAT IS MORE SUSCEPTIBLE TO THIS ANOMALY. SPECIFICALLY, THE PERFORMANCE OF A LOW VOLTAGE CAPACITOR MAY BE COMPROMISED OVER TIME, CAUSING AN INCREASED CURRENT DRAIN THAT CAN LEAD TO PREMATURE BATTERY DEPLETION. THIS PARTICULAR DEVICE WAS INCLUDED IN THE ADVISORY POPULATION.

Description of Event or Problem · 1

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Description of Event or Problem · 1

BOSTON SCIENTIFIC RECEIVED INFORMATION THAT DURING A PATIENT FOLLOW UP, TONES WERE BEING EMITTED FROM THIS IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (ICD). WHEN THE ICD WAS INTERROGATED, THE FAULT CODE 1003 WAS DISPLAYED ALONG WITH THE MESSAGE THAT THE VOLTAGE WAS TOO LOW FOR THE PROJECTED REMAINING CAPACITY. A MEMORY DOWNLOAD WAS PERFORMED AND SENT TO BOSTON SCIENTIFIC FOR FURTHER EVALUATION. A BOSTON SCIENTIFIC ENGINEER REVIEWED THE DATA AND CONFIRMED THAT A LOW VOLTAGE FAULT HAD BEEN DECLARED AS A RESULT OF AN ADDITIONAL CURRENT DRAIN ON THE DEVICE¿S BATTERY. AT THIS TIME DELIVERY IS CURRENTLY UNAFFECTED; HOWEVER, THE DEVICE IS MALFUNCTIONING AND SHOULD BE REPLACED. THE ICD HAS A SUFFICIENT RESERVE TO MAINTAIN NORMAL THERAPY FUNCTIONS FOR FOUR WEEKS. BEYOND THAT TIME, THERAPY COULD NOT BE GUARANTEED THE DEVICE WAS EXPLANTED AND WILL BE RETURNED FOR ANALYSIS. THERE WERE NO ADDITIONAL ADVERSE PATIENT EFFECTS WERE REPORTED.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
313315 COGNIS IMPLANTABLE CHF PULSE GENERATOR LWP GUIDANT CRM CLONMEL IRELAND N119

Patients

Seq Age Sex Outcome Treatment
1 42 YR Hospitalization| L| R N119| 4543| 4473| 0184