Belgian Society of Cardiology. Belgian Heart Rhythm Association (BeHRA).The 5th Belgian Heart Rhythm Meeting, 6-7 October 2011, Brussels. Abstracts.

摘要

Data of the Belgian register on implantable loop recorder in unexplained syncope and stroke. - C. Bar-braud, J. Castro Rodriguez, T. Verbeet (on behalf of all participants to the ILR database, Department of Cardiology, CHUBrugmann, Belgium).-Syncope is common in the general population and in 23 to 50% an initial evaluation including a detailed clinical history and oriented examinations (orthostatic blood pressure measurements, electrocardiogram, carotid sinus massage, echocardiogram, tilt testing) leads to an etiological diagnosis (neuro-mediated syncope, syncope due to orthostatic hypotension or cardiac syncope). However, in some patients, syncope remains unexplained, and an arrhythmia is often strongly suspected. Implantable loop recorder, by making a correlation between syncope and heart rhythm, is thus indicated to demonstrate a cause of syncope with a specific treatment or to definitely exclude an arrhythmia in such patients. Implantable loop recorder may also be useful in stroke to identify a paroxysmal atrial fibrillation, especially in young people with unexplained ischemic attack after an initial neurologic evaluation (including transoesophagal echocardiography, holter monitoring, carotids Doppler ultrasound) .We describe here the data of the national Belgian register between 2008 and 2011, including 437 patients. 384 patients (87,8%) were implanted for unexplained syncope and 53 patients (12, 1%) were implanted for stroke of unknown origin. After a mean period of 7.7 months, the follow-up is closed in 49 patients; the device is still implanted in 353 patients. A recurrent episode appeared and allowed to make a diagnosis in 42/45 (93.3%) cases of syncope and in 1 case of stroke. In this diagnosed syncope population, 24/45 (53%) had an arrhythmia consisting in atrio-ventricular blocks, asystoles or severe bradycardia, leading to the implantation of a pacemaker; or ventricular arrhythmias, leading to a defi-brillator implantation. The other diagnosis were ...