MAUDE Adverse Event Report: Abbott Medical (CRM-Sylmar) ISOFLEX OPTIM LEAD; Permanent Defibrillator Electrodes

Model Number	1944/52
Medical Device Problem Codes	Fracture (1260); Over-Sensing (1438)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Type of Reportable Event	Malfunction
Event or Problem Description
During remote follow-up, noise which resulted in oversensing was observed on the atrial lead.The suspected cause of the event is a lead fracture; however this has not been confirmed.No intervention has been performed at this time.The patient was stable and will continue to be monitored.
Event or Problem Description
Additional information received indicates that the noise was successfully reproduced with provocative testing.Diagnostic imaging was also performed to assess alleged lead damage on the rv and a leads, but the results are unavailable.

• Brand Name: ISOFLEX OPTIM LEAD
• Common Device Name: Permanent Defibrillator Electrodes
• Manufacturer (Section D): Abbott Medical (CRM-Sylmar); 15900 valley view court; sylmar CA 91342
• Manufacturer (Section G): Abbott Medical (CRM-Sylmar); 15900 valley view court; sylmar CA 91342
• Manufacturer Contact: navpreet singh ; 15900 valley view court; sylmar, CA 91342
• MDR Report Key: 50884236
• Report Number: 2017865-2026-20026
• Device Sequence Number: 10667623
• Product Code: NVY
• UDI-Device Identifier: 05414734502320
• UDI-Public: (01)05414734502320(10)P000009191(17)180430
• Combination Product (Y/N): Y
• Initial Reporter Country: UK
• PMA/510(K) Number: P960030
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2016
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Foreign,Health Professional,Company Representative
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial
• Report Date (Section B): 09/24/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Health Professional
• Device Expiration Date: 04/30/2018
• Device Model Number: 1944/52
• Device Lot Number: P000009191
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Was the Report Sent to FDA?: No
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 09/07/2026
• Initial Report FDA Received Date: 09/24/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 05/22/2015
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Sex: Unknown