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

Model Number	0181
Medical Device Problem Code	High impedance (1291)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/25/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that this right ventricular (rv) lead recorded an alert for high out of range shock impedance measurements.Technical services (ts) reviewed the available device data and observed the reported shock impedance value was approximately 125 ohms.Ts recommended consideration of increasing the upper alert limit.No adverse patient effects were reported.This rv lead remains in service.

• Brand Name: ENDOTAK RELIANCE SG
• Common Device Name: IMPLANTABLE LEAD
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; road 698, lot no. 12; dorado PR 00646 -260; * 00646-2602
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 24835507
• Report Number: 2124215-2026-19445
• Device Sequence Number: 10447175
• Product Code: LWS
• UDI-Device Identifier: 00802526531156
• UDI-Public: (01)00802526531156(17)150621
• 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: 2013
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial
• Report Date (Section B): 04/09/2026

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: 06/21/2015
• Device Model Number: 0181
• Device Catalogue Number: 0181
• Device Lot Number: 322763
• Was Device Available for Evaluation?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/26/2026
• Initial Report FDA Received Date: 04/09/2026
• Date Device Manufactured: 06/21/2013
• 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: 73 YR
• Patient Sex: Male