MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION RESONATE X4 CRT-D; CARDIAC RESYNCHRONIZATION THERAPY DEFIBRILLATOR (CRT-D)

Model Number G447

Device Problems Failure to Capture (1081); High Capture Threshold (3266)

Patient Problem Syncope/Fainting (4411)

Event Date 07/25/2023

Event Type  Injury  

Event Description

It was reported that this cardiac resynchronization therapy defibrillator (crt-d) exhibited loss of capture (loc) and high capture thresholds on the left ventricular (lv) channel.It was noted that the patient had a much lower capture threshold at implant.The device recommended lv pacing only.It was noted that the lv thresholds increased.Thus, the output was increased.Additionally, the patient developed a complete heart block.The patient experienced a syncopal episode, which indicates that there was loc.A thresholds test was performed and revealed that the thresholds increased further.Technical services (ts) provided potential programming options.The device was reprogrammed.The device remains in use.No additional adverse patient effects were reported.

• Brand Name: RESONATE X4 CRT-D
• Type of Device: CARDIAC RESYNCHRONIZATION THERAPY DEFIBRILLATOR (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: 17469185
• MDR Text Key: 320485228
• Report Number: 2124215-2023-41744
• Device Sequence Number: 1
• Product Code: NIK
• UDI-Device Identifier: 00802526589539
• UDI-Public: 00802526589539
• Combination Product (y/n): N
• Reporter Country Code: US
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Health Professional,Company Representative
• Reporter Occupation: Physician
• Type of Report: Initial
• Report Date: 08/07/2023

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 08/07/2023
• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Model Number: G447
• Device Catalogue Number: G447
• Device Lot Number: 295176
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 07/25/2023
• Was Device Evaluated by Manufacturer?: Device Not Returned to Manufacturer
• Date Device Manufactured: 11/25/2022
• 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 Outcome(s): Other
• Patient Age: 70 YR
• Patient Sex: Male