MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION MOMENTUM CRT-D; DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER, WITH CRT-D

Model Number G125

Device Problems High impedance (1291); Low impedance (2285)

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

Event Date 10/23/2023

Event Type  malfunction  

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.

Event Description

It was reported that this device and non boston scientific left ventricular (lv) epicardial leads exhibited jumpy pace impedance measurements remaining within normal range.Technical services (ts) discussed troubleshooting and recommended testing in the clinic.It was noted that this patient appeared to be starting to have onset of heart failure.Ts could not be certain if it was related to the lv leads or a separate clinic issue.It was noted this patient had stopped drinking alcohol recently.This patient was not experiencing symptoms.This device remains in service.No adverse patient effects were reported.

• Brand Name: MOMENTUM CRT-D
• Type of Device: DEFIBRILLATOR, AUTOMATIC IMPLANTABLE CARDIOVERTER, WITH CRT-D
• 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: 18796625
• MDR Text Key: 336426657
• Report Number: 2124215-2024-11857
• Device Sequence Number: 1
• Product Code: NIK
• 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: Physician
• Type of Report: Initial
• Report Date: 02/28/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 02/28/2024
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Expiration Date: 01/13/2023
• Device Model Number: G125
• Device Catalogue Number: G125
• Device Lot Number: 144327
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 02/27/2024
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 01/20/2021
• 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: 65 YR
• Patient Sex: Male