MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION ESSENTIO MRI SR; IMPLANTABLE PACEMAKER

Model Number	L110
Medical Device Problem Code	Nonstandard Device (1420)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	06/30/2025
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that this pacemaker was received by post market quality assurance without a known reason for explant.No adverse patient effects were reported.
Additional Manufacturer Narrative
Upon receipt at our post market quality assurance laboratory, this device was thoroughly inspected and analyzed.A high current drain was detected.Detailed analysis confirmed the identified high current drain was a result of compromised capacitors.This resulted in the observed premature battery depletion.It was determined that the capacitors were compromised due to the presence of excess hydrogen in the device case.Boston scientific issued a field safety notice regarding a subset of devices in the accolade pacemaker family that have a potential of exhibiting this behavior.This particular device is included in the hydrogen induced premature depletion advisory population.

• Brand Name: ESSENTIO MRI SR
• Common Device Name: IMPLANTABLE PACEMAKER
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112 5798
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 24536521
• Report Number: 2124215-2026-12690
• Device Sequence Number: 8895523
• Product Code: LWP
• UDI-Device Identifier: 00802526558948
• UDI-Public: (01)00802526558948(17)180614
• Combination Product (Y/N): N
• Initial Reporter State: MA
• Initial Reporter Country: US
• PMA/510(K) Number: P150012
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2018
• Device Explanted Year: 2025
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Company Representative
• Initial Reporter Occupation: Other
• Remedial Action: Notification,Recall
• Type of Report: Initial
• Report Date (Section B): 03/06/2026

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: 06/14/2018
• Device Model Number: L110
• Device Catalogue Number: L110
• Device Lot Number: 718863
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 06/30/2025
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 02/20/2026
• Initial Report FDA Received Date: 03/06/2026
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 06/27/2016
• 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
• If action reported to FDA under 21 USC 360i(g), list FDA-assigned Recall Number or include a statement: Z-0367-2018
• Patient Sequence Number: 1
• Patient Age: 74 YR
• Patient Sex: Female