MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION MOMENTUM CRT-D; CARDIAC RESYNCHRONIZATION THERAPY DEFIBRILLATOR

Model Number G125

Device Problems Failure to Capture (1081); High impedance (1291); Defective Device (2588)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 08/11/2023

Event Type  malfunction  

Manufacturer Narrative

If information is provided in the future, a supplemental report will be issued.

Event Description

It was reported that this system with a cardiac resynchronization therapy defibrillator (crt-d) and a non-bsc left ventricular (lv) lead triggered an alert for lv automatic threshold test.It appeared that the test had not been able to be run for various days, nonetheless, when the crt-d was analyzed, it was no longer in suspension mode.The impedance values had increased as well and several months ago the behavior had been unstable.Also, failure to capture was observed for the lv lead.Before the high, out of range pacing impedances the presenting electrogram appeared different and the lead was capturing.A lead fracture was suggested, and the health care professional agreed.The crt-d and the lv lead remain in service.No symptoms or adverse patient effects were reported.

Manufacturer Narrative

This product has not been returned to boston scientific, and as a result, laboratory analysis could not be conducted.The associated investigation determined that this device exhibited intermittent impedance measurements with no conclusive evidence of a product performance issue or inadequate lead-to-device connection; please refer to the description for more information regarding the specific circumstances of this event.Investigation has determined that this type of event is likely the result of an intermittent high impedance condition associated with the device spring contact and lead terminal ring.A design enhancement was implemented in 2020 to stabilize the electrical connection between the spring contact and the lead terminal.If information is provided in the future, a supplemental report will be issued.

Event Description

It was reported that this system with a cardiac resynchronization therapy defibrillator (crt-d) and a non-bsc left ventricular (lv) lead triggered an alert for lv automatic threshold test.It appeared that the test had not been able to be run for various days, nonetheless, when the crt-d was analyzed, it was no longer in suspension mode.The impedance values had increased as well and several months ago the behavior had been unstable.Also, failure to capture was observed for the lv lead.Before the high, out of range pacing impedances the presenting electrogram appeared different and the lead was capturing.A lead fracture was suggested, and the health care professional agreed.The crt-d and the lv lead remain in service.No symptoms or adverse patient effects were reported.

• Brand Name: MOMENTUM CRT-D
• Type of Device: CARDIAC RESYNCHRONIZATION THERAPY DEFIBRILLATOR
• 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: 18472844
• MDR Text Key: 332900642
• Report Number: 2124215-2024-00747
• Device Sequence Number: 1
• Product Code: NIK
• UDI-Device Identifier: 00802526589126
• UDI-Public: 00802526589126
• Combination Product (y/n): N
• Reporter Country Code: US
• PMA/PMN Number: P010012/S436
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional
• Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date: 01/24/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 01/09/2024
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Expiration Date: 06/23/2023
• Device Model Number: G125
• Device Catalogue Number: G125
• Device Lot Number: 147683
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 01/22/2024
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 07/19/2021
• Is the Device Single Use?: Yes
• Is This a Reprocessed and Reused Single-Use Device?: No
• Type of Device Usage: Initial
• Patient Sequence Number: 1
• Patient Age: 67 YR
• Patient Sex: Male