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

Model Number	K273
Medical Device Problem Code	Battery Problem (2885)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	01/11/2024
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that this pacemaker has dropped from 1.5 years down to 5 months battery remaining in a span of 2 months.Boston scientific technical services (ts) assessed that device went from 39 micro watts to 44 micro watts.Also, stated that this was most likely the transition from coulometer to voltage based calculation.Moreover, during the last year of device longevity, the device switched from monitoring power consumption to voltage based projection.This can result in a drop in battery longevity.As of this time, this device remains in service.No adverse patient effects were reported.
Additional Manufacturer Narrative
If information is provided in the future, a supplemental report will be issued.
Additional Manufacturer Narrative
If information is provided in the future, a supplemental report will be issued.This product has not been returned for analysis.This report will be updated should additional information become available or if analysis is completed.
Event or Problem Description
It was reported that this pacemaker has dropped from 1.5 years down to 5 months battery remaining in a span of 2 months.Boston scientific technical services (ts) assessed that device went from 39 micro watts to 44 micro watts.Also, stated that this was most likely the transition from coulometer to voltage based calculation.Moreover, during the last year of device longevity, the device switched from monitoring power consumption to voltage based projection.This can result in a drop in battery longevity.As of this time, this device remains in service.No adverse patient effects were reported.Additional information received which indicated that the device was explanted and replaced.No additional adverse patient effects were reported.
Additional Manufacturer Narrative
If information is provided in the future, a supplemental report will be issued.This product has not been returned for analysis.This report will be updated should additional information become available or if analysis is completed.The returned device was thoroughly inspected and analyzed upon receipt at our post market quality assurance laboratory.Visual examination of the device header and case noted scratches.The device was then exposed to simulated heart load conditions, and the pacing, and sensing functions were tested.Impedance testing was completed and all measurements were within normal limits.The device operated appropriately with no interruptions in therapy output at the returned programmed settings.A series of electrical tests was also performed, and again, normal device function was observed.
Event or Problem Description
It was reported that this pacemaker has dropped from 1.5 years down to 5 months battery remaining in a span of 2 months.Boston scientific technical services (ts) assessed that device went from 39 micro watts to 44 micro watts.Also, stated that this was most likely the transition from coulometer to voltage based calculation.Moreover, during the last year of device longevity, the device switched from monitoring power consumption to voltage based projection.This can result in a drop in battery longevity.As of this time, this device remains in service.No adverse patient effects were reported.Additional information received which indicated that the device was explanted and replaced.No additional adverse patient effects were reported.
Additional Manufacturer Narrative
If information is provided in the future, a supplemental report will be issued.This product has not been returned for analysis.This report will be updated should additional information become available or if analysis is completed.The returned device was thoroughly inspected and analyzed upon receipt at our post market quality assurance laboratory.Visual examination of the device header and case noted scratches.The device was then exposed to simulated heart load conditions, and the pacing, and sensing functions were tested.Impedance testing was completed and all measurements were within normal limits.The device operated appropriately with no interruptions in therapy output at the returned programmed settings.A series of electrical tests was also performed, and again, normal device function was observed.The returned vitalio device was analyzed and it was confirmed the actual rate of battery depletion fell within an acceptable range.Next, a series of diagnostic tests were conducted that verified the performance of pacing, sensing, and recording functions.It was determined that the unexpected change in observed longevity is due to a mismatch between the actual battery voltage and the expected battery voltage per the nominal battery discharge model (which represents how the device's battery voltage typically decreases over time).In some devices, the actual battery voltage remains higher than the nominal model earlier in device life (which results in a higher-than-expected remaining longevity) and then becomes lower than the nominal model later in device life (which results in the remaining longevity appearing to decrease more quickly than expected between routine follow-ups).Boston scientific devices will automatically adjust remaining longevity estimates to maintain the 90-day therapy window between explant and battery capacity depleted.In this case, the battery did not deplete prematurely, rather, the replacement indicator (and associated remaining longevity) was adjusted later in device life to ensure a 90-day replacement period.
Event or Problem Description
It was reported that this pacemaker has dropped from 1.5 years down to 5 months battery remaining in a span of 2 months.Boston scientific technical services (ts) assessed that device went from 39 micro watts to 44 micro watts.Also, stated that this was most likely the transition from coulometer to voltage based calculation.Moreover, during the last year of device longevity, the device switched from monitoring power consumption to voltage based projection.This can result in a drop in battery longevity.As of this time, this device remains in service.No adverse patient effects were reported.Additional information received which indicated that the device was explanted and replaced.No additional adverse patient effects were reported.

• Brand Name: VITALIO
• 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; cashel road; clonmel ; EI
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 18612713
• Report Number: 2124215-2024-05151
• Device Sequence Number: 11364346
• Product Code: LWP
• UDI-Device Identifier: 00802526516962
• UDI-Public: 00802526516962
• Combination Product (Y/N): N
• Initial Reporter State: WA
• Initial Reporter Country: US
• PMA/510(K) Number: N970003/S143
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2015
• Device Explanted Year: 2024
• Serviced by Third Party (Y/N): Unknown
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup,Followup,Followup
• Report Date (Section B): 07/28/2025

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: 02/09/2017
• Device Model Number: K273
• Device Catalogue Number: K273
• Device Lot Number: 406427
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Follow-Up
• Initial Date Received by Manufacturer: 01/11/2024
• Supplement Date Received by Manufacturer: 04/03/2024; 08/27/2024; 07/28/2025
• Initial Report FDA Received Date: 01/31/2024
• Supplement Report FDA Received Date: 04/23/2024; 09/24/2024; 07/28/2025
• Was Device Evaluated by Manufacturer? (Y/N): Yes
• Date Device Manufactured: 02/09/2015
• 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: 70 YR
• Patient Sex: Male