MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION ALTRUA 40; IMPLANTABLE PULSE GENERATOR, PACEMAKER (NON-CRT)

Model Number	S401
Medical Device Problem Codes	Over-Sensing (1438); Pacing Problem (1439)
Health Effect - Clinical Code	No Consequences Or Impact To Patient (2199)
Date of Event	03/12/2019
Type of Reportable Event	Serious Injury
Event or Problem Description
It was reported that this pacemaker system exhibited oversensing on the right atrial (ra) lead, which resulted in pacing inhibition.Subsequently, a revision procedure was performed.The pacemaker was explanted and replaced and the ra lead was surgically abandoned and replaced.No additional adverse patient effects were reported.
Additional Manufacturer Narrative
Correction to field d7: explant date.Upon receipt at our post market quality assurance laboratory, a thorough evaluation of the device was performed.A visual inspection of the device header and case noted no anomalies.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.Analysis did not identify any device characteristics that would have caused or contributed to the reported oversensing and pacing inhibition.
Event or Problem Description
This supplemental report is being filed as the device evaluation was completed.

• Brand Name: ALTRUA 40
• Common Device Name: IMPLANTABLE PULSE GENERATOR, PACEMAKER (NON-CRT)
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• MDR Report Key: 8557692
• Report Number: 2124215-2019-07710
• Device Sequence Number: 2168608
• Product Code: LWP
• UDI-Device Identifier: 00802526484438
• UDI-Public: 00802526484438
• Combination Product (Y/N): N
• Initial Reporter State: MI
• Initial Reporter Country: US
• PMA/510(K) Number: N970003/S096
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2012
• Device Explanted Year: 2019
• Reporter Type: Manufacturer
• Report Source: company representative
• Initial Reporter Occupation: Physician
• Type of Report: Initial,Followup
• Report Date (Section B): 01/07/2020

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: 01/19/2014
• Device Model Number: S401
• Device Catalogue Number: S401
• Device Lot Number: 574672
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 04/29/2019
• Initial Date Received by Manufacturer: 03/12/2019
• Supplement Date Received by Manufacturer: 11/06/2019
• Initial Report FDA Received Date: 04/26/2019
• Supplement Report FDA Received Date: 01/07/2020
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Hospitalization; Life Threatening; Required Intervention
• Patient Age: 89 YR