Arrhythmia investigations

Arrhythmia investigations

Identification of paroxysmal, transient arrhythmias: Intermittent registration more efficient than the 24-hour Holter monitoring

Hendrikx, T., Rosenqvist, M., Sandström, H., Persson, M. & Hörnsten, R.

Läkartidningen (2015, Jan 6) (Article only in Swedish)

Link to Abstract

Link to study

In this case report a patient who had been investigated by health care several times during a seven year period for palpitations is described. Routine examination with 24 hour Holter ECG and event recorder did not result in a diagnosis. Using Zenicor-ECG, a paroxysmal supraventricular arrhythmia could finally be diagnosed. Further investigation revealed that the patient had a concealed Wolff-Parkinson-White (WPW) syndrome.


Intermittent short ECG recording is more effective than 24-hour Holter ECG in detection of arrhythmias (Prima Rytm)

Hendrikx, T., Rosenqvist, M., Wester, P., Sandström, H. & Hörnsten, R.

BMC Cardiovascular Disorders (2014, 14:41)

Link to study

In the Prima Rytm study Zenicor-EKG was compared with a Holter monitor in patients with symptoms suspected to come from the heart. Ninety-two patients were included, and only three could be diagnosed with serious arrhythmias using the Holter monitor. With Zenicor-EKG 13 patients were able to receive a correct diagnosis. This means that 80% of arrhythmias remained undetected using the conventional Holter monitor method.

Children cardiology arrhythmia investigations

Arrhythmia Detection in Pediatric Patients: ECG Quality and Diagnostic Yield of a Patient-Triggered Einthoven Lead-I Event Recorder (Zenicor EKG-2™)

Usadel L, Haverkämper G, Herrmann S, Löber R, Weiss K, Opgen-Rein B, Berger F, Will JC. Arrhythmias Detection in Pediatric Patients: ECG Quality and Diagnostic Yield of a Patient-Triggered Einthoven Lead-1 Event Recorder (Zenicor EKG-2) Pediatric Cardiology. 2015; Nov: 14: 1-6

Link to study

In a study of around 100 patients at Charité University Hospital in Berlin, the diagnostic ability of Zenicor-EKG in relation to 12-lead ECG was verified. It was confirmed that Zenicor-EKG works well at all ages (0–17 years) and was technically simple to use. Heart rate could be identified in over 95%, as for paced rhythms and tachycardia.

Handheld ECG in analysis of arrhythmia and HRV in children with Fontan circulation

Alenius Dahlqvist J., Karlsson M., Wiklund U., Hörnsten R. & Rydberg A.

Journal of electrocardiology (2014 Maj-Juni, 374-82)

Link to poster

Link to study

In a study from Umeå University Hospital, 18 children were assessed for the possibility of calculating long-term variability in cardiac rhythm using Poincaré plot. The conclusion was that Zenicor-EKG can be used to search for cardiac autonomic dysfunction using Poincaré plot.

Tidstro ambulant arytmidiagnostik hos børn (Real-time mobile arrhythmia diagnostics in children)

Linnemann A. & Nielsen G.

Link to poster (Only available in Danish)

At Odense University Hospital the results of arrhythmia investigations in a time period of 1.5 years in which Zenicor had been used, a total of 29 children, were compiled. The children had previously undergone investigations using 12-lead ECG and cardiac echo, as well as Holter-EKG, cardiac stress test or R test without being diagnosed. With Zenicor-EKG 17 of the children (59%) could be given a diagnosis, of which 8 could be discharged as their symptoms could not be linked to arrhythmia, and 9 (31%) could be diagnosed with significant arrhythmia.