MAUDE Adverse Event Report: BOSTON SCIENTIFIC CORPORATION ACUITY X4 STRAIGHT; IMPLANTABLE LEAD

Model Number 4671

Device Problems High impedance (1291); Positioning Problem (3009); High Capture Threshold (3266)

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

Event Date 02/05/2024

Event Type  malfunction  

Event Description

It was reported that this left ventricular (lv) lead was an attempted implant due to high impedance measurements and high capture thresholds.The physician opted to replace the lead and a new one was successfully implanted.No adverse patient effects were reported.This lead has been received for analysis.

Manufacturer Narrative

Upon receipt at our post market quality assurance laboratory, a thorough evaluation of the lead was performed.Testing was completed to assess lead electrical performance and inner insulation integrity.Measurements throughout these tests were within normal limits.Microscopic inspections of the terminal pin assembly, lead body, and electrode tip found no anomalies.Laboratory testing was unable to reproduce the reported clinical observations and detailed analysis did not reveal any abnormalities.Laboratory analysis did not identify any lead characteristics that would have caused or contributed to the reported clinical observations.

Event Description

It was reported that this left ventricular (lv) lead was an attempted implant due to high impedance measurements and high capture thresholds.The physician opted to replace the lead and a new one was successfully implanted.No adverse patient effects were reported.This lead has been received for analysis.

• Brand Name: ACUITY X4 STRAIGHT
• Type of Device: IMPLANTABLE LEAD
• Manufacturer (Section D): BOSTON SCIENTIFIC CORPORATION; 4100 hamline avenue north; saint paul MN 55112
• Manufacturer (Section G): BOSTON SCIENTIFIC CORPORATION; road 698, lot no. 12; dorado PR 00646 -260; * 00646-2602
• Manufacturer Contact: timothy degroot ; 4100 hamline avenue north; saint paul, MN 55112 ; 6515826168
• MDR Report Key: 18699145
• MDR Text Key: 336396029
• Report Number: 2124215-2024-08446
• Device Sequence Number: 1
• Product Code: LWP
• Combination Product (y/n): Y
• Reporter Country Code: US
• PMA/PMN Number: P010012/S398
• 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: 02/13/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 02/13/2024
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Model Number: 4671
• Device Catalogue Number: 4671
• Device Lot Number: 873113
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Returned to Manufacturer: 02/13/2024
• Is the Reporter a Health Professional?: Yes
• Date Manufacturer Received: 02/05/2024
• Was Device Evaluated by Manufacturer?: No
• Date Device Manufactured: 05/09/2023
• 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: 58 YR
• Patient Sex: Female