Author + information
- Amber K. Seiler,
- Sarah Flores,
- Gregg Taylor,
- Steven Klein and
- James Allred
Background: Implantable loop recorders (ILR) are implanted for arrhythmia diagnosis and management in a variety of patient populations. ILRs may potentially lead to the need for pacemakers (PM) or implanted cardiac defibrillators (ICD). We evaluated the incidence of upgrade of ILRs to therapy devices in our clinic.
Methods: Consecutive ILRs implanted between March 2014 and May 2016 were analyzed. Patients were evaluated based on ILR implant indication, time to upgrade and indication for therapy device.
Results: We analyzed 451 consecutive ILR patients with a total follow up time of 435.45 patient years. 5.9% of ILR patients underwent upgrade to therapy devices (26 PM and 1 ICD). The unexplained syncope population had the highest percentage of patients receiving a PM or ICD (14.4%). Percentage of patients receiving a PM or ICD by implant indication is shown in Table 1. Indication for upgrade to therapy devices were sinus node dysfunction (13), AV block (11), tachy/brady (2), and VT (1). The mean time to upgrade was 140.6 days (range 3-532 days).
Conclusions: ILRs are implanted to identify arrhythmias that may be responsible for clinical presentations. Out of 451 patients implanted, 5.9% of patients had arrhythmias identified that required upgrade to a PM or ICD. The highest yield for patients needing upgrade was in the syncope patient population. Time to upgrade of device would suggest that shorter term monitoring would not be as effective in identifying patients with potentially treatable arrhythmias.
Moderated Poster Contributions
Arrhythmias and Clinical EP Moderated Poster Theater, Poster Hall, Hall C
Sunday, March 19, 2017, 1:15 p.m.-1:25 p.m.
Session Title: Novel Arrhythmia Diagnostics, Therapeutics, and “Wearables”
Abstract Category: 5. Arrhythmias and Clinical EP: Devices
Presentation Number: 1315M-09
- 2017 American College of Cardiology Foundation