Implantable loop recorders (ILRs) allow long-time rhythm monitoring in order to correlate unexplained symptoms with possible arrhythmias. In this case report, we describe a patient with unexplained syncope in which the ILR revealed the cause. Case A 35-year-old male patient with no apparent medical history was sent to our outpatient clinic for a second opinion because of unexplained multiple syncopes. Familial history revealed that his father was implanted with a pacemaker at the age of 42 due

more »

... o 'periodical Figure 1 Outprint of an implantable loop recorder (REVEAL XT Medtronicw) showing a sinus-arrest of 24 s with also evidence of the subsequent fall of the patient with noise on the recording. Published on behalf of the