MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION VITALIO?; PACEMAKER

Model Number	K274
Medical Device Problem Code	Incorrect, Inadequate or Imprecise Result or Readings (1535)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/18/2026
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
This product investigation is still in progress.This report will be updated when product investigation is complete.
Event or Problem Description
It was reported that this pacemaker had reverted to safety mode.Subsequently this device was explanted and successfully replaced.Other than the intervention no additional adverse patient effects were reported.This device has been returned for analysis; however, results of investigation have not been completed at time of submission of this report.A supplemental report will be submitted once results of investigation become available.

• Brand Name: VITALIO?
• Common Device Name: PACEMAKER
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; cashel road; clonmel ; EI
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 25128434
• Report Number: 2124215-2026-25160
• Device Sequence Number: 10729279
• Product Code: LWP
• UDI-Device Identifier: 00802526536557
• UDI-Public: (01)00802526536557(17)160527
• Combination Product (Y/N): N
• Initial Reporter State: PA
• Initial Reporter Country: US
• PMA/510(K) Number: N970003
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2014
• Device Explanted Year: 2026
• 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): 05/08/2026

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: 05/27/2016
• Device Model Number: K274
• Device Catalogue Number: K274
• Device Lot Number: 100447
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 05/01/2026
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 04/20/2026
• Initial Report FDA Received Date: 05/08/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 06/15/2014
• 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: Required Intervention; Hospitalization
• Patient Age: 75 YR
• Patient Sex: Female