MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION ENDOTAK RELIANCE G; IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (NON-CRT)

Model Number	0174
Medical Device Problem Codes	High impedance (1291); Connection Problem (2900)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/15/2025
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
If pertinent information is provided in the future, a supplemental report will be submitted.
Event or Problem Description
It was reported that upon review of boston scientific latitude remote monitoring system stored data, we identified evidence that this lead exhibited high shock impedance measurements of greater than 125 ohms.No adverse patient effects have been reported.
Additional Manufacturer Narrative
If pertinent information is provided in the future, a supplemental report will be submitted.
Event or Problem Description
It was reported that upon review of boston scientific latitude remote monitoring system stored data, we identified evidence that this lead exhibited high shock impedance measurements of greater than 125 ohms.No adverse patient effects have been reported.Additional information was received that this right ventricular (rv) lead and the implantable cardioverter defibrillator (icd) exhibited jumpy impedance measurements of greater than 200 ohms.No noise was observed.Technical services (ts) noted this appeared to be a possible connection issue.The physician would review.This rv lead remains in service.No adverse patient effects were reported.

• Brand Name: ENDOTAK RELIANCE G
• Common Device Name: IMPLANTABLE CARDIOVERTER DEFIBRILLATOR (NON-CRT)
• 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: 22665639
• Report Number: 2124215-2025-52110
• Device Sequence Number: 3702387
• Product Code: LWS
• UDI-Device Identifier: 00802526373640
• UDI-Public: (01)00802526373640(17)050618
• Combination Product (Y/N): Y
• Initial Reporter State: MA
• Initial Reporter Country: US
• PMA/510(K) Number: P910073
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2004
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup,Followup,Followup
• Report Date (Section B): 05/14/2026

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: 06/18/2005
• Device Model Number: 0174
• Device Catalogue Number: 0174
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 07/10/2025
• Supplement Date Received by Manufacturer: 11/25/2025; 02/24/2026; 04/24/2026
• Initial Report FDA Received Date: 07/30/2025
• Supplement Report FDA Received Date: 12/02/2025; 05/14/2026; 05/14/2026
• Date Device Manufactured: 06/18/2003
• 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 Sex: Female