MAUDE Adverse Event Report: Abbott Medical (CRM-Sylmar) Assert-IQ¿ ICM; Recorder, Event, Implantable Cardiac, (Without Arrhythmia Detection)

Model Number	DM5500
Medical Device Problem Code	Under-Sensing (1661)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	09/14/2026
Type of Reportable Event	Malfunction
Event or Problem Description
It was reported that the patient presented remotely via merlin.Net.Review of the transmission revealed that the implantable cardiac monitor (icm) exhibited under-sensing of intrinsic activities, resulting in false bradycardia episodes.No intervention or changes were reported.No patient consequences were reported.
Additional Manufacturer Narrative
Further information was requested but not received.

• Brand Name: Assert-IQ¿ ICM
• Common Device Name: Recorder, Event, Implantable Cardiac, (Without Arrhythmia Detection)
• 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: 50869290
• Report Number: 2017865-2026-20185
• Device Sequence Number: 9379735
• Product Code: MXC
• UDI-Device Identifier: 05415067047809
• UDI-Public: (01)05415067047809(10)S000093249(17)250723
• Combination Product (Y/N): N
• Initial Reporter Country: US
• PMA/510(K) Number: K230286
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Device Implanted Year: 2024
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Health Professional,Company Representative
• Initial Reporter Occupation: Nurse
• Type of Report: Initial
• Report Date (Section B): 09/23/2026

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: 07/23/2025
• Device Model Number: DM5500
• Device Lot Number: S000093249
• 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: 09/14/2026
• Initial Report FDA Received Date: 09/23/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 01/30/2024
• 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
• Patient Age: 80 YR
• Patient Sex: Female