Research: Offline Vs Online Monitoring to Diagnose Paroxysmal AF
Marek Dziubinski, Ph.D., CEO of Medicalgorithmics and the inventor of PocketECG, will present “Monitoring Duration Vs Diagnostic Yield in Patients with Paroxysmal Atrial Fibrillation: Is Online Monitoring Better than Offline?” (Abstract #9300) May 10 at 9:30 a.m. during Poster Session 2 in the poster section of the exhibition hall. We hope you’ll join us.
Paroxysmal AF is a form of arrhythmia that is often difficult to diagnose because of its intermittent nature. It can lead to heart-related complications including blood clots, stroke, and heart failure. Left untreated, AF more broadly can double the risk of heart-related death and increase the risk of stroke by as much as five times.
The study was based on the analysis of diagnostic summary reports from 16,595 mobile cardiac telemetry studies conducted between Jan. 1 and Dec. 31, 2016 by Medi-Lynx Cardiac Monitoring, a US-based, certified cardiac monitoring service provider. Our arrhythmia diagnostic solution, PocketECG, was used to capture continuous and fully labeled recordings, lasting between 1 and 30 days (mean duration: 18.1 ± 9.9 days), to determine the monitoring duration required to detect the first AF episode for various AF burdens (AFBs). The most common symptoms or reasons for monitoring were:
- Palpitations (R00.2): 8457 (51% of all patients), out of which 15.2% (1288) were diagnosed with AF
- Syncope and Collapse (R55): 2859 (17.2% of all patients), out of which 12.4% (355) where diagnosed with AF
- Dizziness and Giddiness (R42): 2140 (12.9% of all patients), out of which 13.2% (283) where diagnosed with AF
- Dyspnea (R06.00; R06.09): 1250 (7.5% of all patients), out of which 18.6% (232) were diagnosed with AF.
- Tachycardia (R00.00): 902 (5% of all patients), out of which 15.4% (139) were diagnosed with AF.
Research also evaluated the impact of monitoring duration on diagnostic yield (DY) in patients with PAF (for AFB ≤ 1% and AFB ≤ 10%) and analyzed the difference in DY between the online method (up to 30 days) and simulated offline methods (24 and 48 hours Holter and multiday patch).