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

Model Number	0175
Medical Device Problem Code	High impedance (1291)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	02/25/2026
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that this right ventricular (rv) lead with this implantable cardioverter defibrillator (icd) was exhibiting gradual rise in shock impedances.There were no out of range measurements, but there was a high impedance measurement when attempting to deliver a shock.Therapy was exhausted and fault code 1005 was displayed.Technical services (ts) discussed troubleshooting recommendations for the lead and device.Subsequently this rv lead was explanted and replaced.The icd was explanted due to therapy upgrade.The rv lead has not been received for investigation.No additional adverse patient effects were reported.

• Brand Name: ENDOTAK RELIANCE G
• 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: 24678190
• Report Number: 2124215-2026-16185
• Device Sequence Number: 10331665
• Product Code: LWS
• UDI-Device Identifier: 00802526373732
• UDI-Public: (01)00802526373732(17)061113
• Combination Product (Y/N): Y
• Initial Reporter State: VA
• Initial Reporter Country: US
• PMA/510(K) Number: P910073
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2005
• Device Explanted Year: 2026
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional
• Initial Reporter Occupation: Physician
• Type of Report: Initial
• Report Date (Section B): 03/24/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Operator of Device: Lay User/Patient
• Device Expiration Date: 11/13/2006
• Device Model Number: 0175
• Device Catalogue Number: 0175
• 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: 02/26/2026
• Initial Report FDA Received Date: 03/24/2026
• Date Device Manufactured: 11/13/2004
• 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
• Outcome Attributed to Adverse Event: Hospitalization; Required Intervention
• Patient Age: 53 YR
• Patient Sex: Male