Atrial Fibrillation (R.Test Evolution, X-Olter series, Vista series)
Fibrillation (AF) is the most common sustained cardiac rhythm disturbance. Its
prevalence increases with age to be more than 6% in the general population over
80. The Framingham Heart prospective study showed that the prevalence of AF in
case of patent stroke reached 36.2% of the population over 80.
The chief hazard of AF is STROKE. The risk of stroke among patients with AF averages 5% per year, depending on the population and the associated risk factors (age, hypertension, CHF, diabetes, …). The risk can rise up to 12% per year when these risk factors are cumulated.
The major issues in management of patients with AF are related not only to the arrhythmia itself to ensure that ventricular function is controlled, but also to prevention of thromboembolic events such as stroke. Data from trials on the efficacy of stroke prevention show that the mean risk reduction with Aspirin is approximatively 20%, while oral vitamin K antagonist reduces the rate of ischaemic stroke by 70% compared to that in untreated patient.
The diagnosis of AF requires ECG documentation by at least one-lead ECG recording during the dysrhythmia. In case of frequent episodes of paroxysmal AF, a 24h Holter monitor can be used. If episodes are rare, then long-term Holter ECG or Automatic ECG event recorder is required. A recorder with an automatic recording capability is a key feature since AF is frequently asymptomatic. It helps to avoid inconsistent use of a patient triggering function, especially in the elderly or infirm.
Novacor proposes 2 EXCLUSIVE solutions that both represent a major advance in paroxysmal atrial fibrillation diagnostic:
- HolterSoft Ultima, the first Holter software featuring an AUTOMATIC detection of AF episodes, fully compatible with all Novacor Holter ECG recorders. The detection algorithm relies on the RR analysis combining wavelet transform and fractal analysis.
R.Test Evolution , the ONLY automatic ECG event recorder marketed today: up to 32 day recording, fully automatic, entirely programmable thus allowing the use of a program dedicated to capture events related to AF (SV events, relative pauses, …). The superiority of the R.Test Evolution to 24h Holter has been established through many publications in peer-reviewed journals.