MAUDE Adverse Event Report: ABBOTT MEDICAL (CRM-SYLMAR) GALLANT ¿ HF; No Match

Model Number	CDHFA500T
Medical Device Problem Code	Over-Sensing (1438)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	04/20/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that a patient presented remotely via merlin.Net.Review of the transmission revealed that the patient's implantable cardioverter defibrillator (icd) exhibited post-paced t-wave oversensing (pptwos) stored as non-sustained right ventricular oversensing (nsrvo) episode.Programming changes were discussed, no changes or interventions were reported.There were no patient consequences.

• Brand Name: GALLANT ¿ HF
• Common Device Name: No Match
• 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: 25129999
• Report Number: 2017865-2026-09619
• Device Sequence Number: 9292572
• Product Code: NIK
• UDI-Device Identifier: 05415067049520
• UDI-Public: (01)05415067049520(10)S000094646(17)260331
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: P030054
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2025
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,User Facility,Company Representative
• Initial Reporter Occupation: Nurse
• Type of Report: Initial
• Report Date (Section B): 05/08/2026

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: 03/31/2026
• Device Model Number: CDHFA500T
• Device Catalogue Number: CDHFA500T
• Device Lot Number: S000094646
• 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: 04/20/2026
• Initial Report FDA Received Date: 05/08/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 04/23/2024
• 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
• Concomitant Medical Products and Therapy/Usage Dates: QUARTET; RIATA; ULTIPACE
• Patient Age: 76 YR
• Patient Sex: Male