MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION ENDOTAK RELIANCE; IMPLANTABLE LEAD

Model Number	0147
Medical Device Problem Codes	Signal Artifact/Noise (1036); Over-Sensing (1438); Pacing Problem (1439)
Health Effect - Clinical Code	Asystole (4442)
Date of Event	10/05/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
This investigation will be updated should pertinent information become available in the future.
Event or Problem Description
It was reported that this cardiac resynchronization therapy defibrillator (crt-d) system exhibited noise during non-sustained ventricular tachycardia (nsvt) episodes.Pacing inhibition over two seconds was also observed.Technical services (ts) was consulted and upon review discussed it appears to be electromagnetic interference (emi).Clinical evaluation will be performed.This right ventricular (rv) lead remains in service.No additional adverse patient effects were reported.

• Brand Name: ENDOTAK RELIANCE
• Common Device Name: IMPLANTABLE LEAD
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): CPI - DEL CARIBE; guidant puerto rico b. v.; #12, rd. #698; dorado PR 00646
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 23991396
• Report Number: 2124215-2026-00971
• Device Sequence Number: 21465334
• Product Code: LWS
• UDI-Device Identifier: 00802526085789
• UDI-Public: (01)00802526085789(17)080925
• Combination Product (Y/N): Y
• Initial Reporter State: MI
• Initial Reporter Country: US
• PMA/510(K) Number: P910073
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2007
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 01/07/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Lay User/Patient
• Device Expiration Date: 09/25/2008
• Device Model Number: 0147
• Device Catalogue Number: 0147
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 12/22/2025
• Initial Report FDA Received Date: 01/07/2026
• Date Device Manufactured: 09/25/2006
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Age: 71 YR
• Patient Sex: Female