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עמוד בית
Mon, 15.07.24

ORIGINAL ARTICLES

IMAJ | volume 25

Journal 6, June 2023
pages: 426-429

Implantable Loop Recorders in Patients with Unexplained Syncope: Does Ethnic Background Influence Diagnostic Yield?

1 Azrieli Faculty of Medicine, Bar-Ilan University, Safed, Israel 2 Department of Cardiology, Ziv Medical Center, Safed, Israel 3 Department of Nutritional Sciences, Tel-Hai College, Upper Galilee, Israel 4 Department of Cardiovascular Medicine, Tzafon Medical Center, Lower Galilee, Israel

Summary

Background:

Implantable loop recorders (ILRs) are a central tool in the evaluation of unexplained syncope. These devices record and store electrocardiograms, both automatically and on patient-dependent activation. Therefore, obtaining optimal diagnostic results relies on a patient's comprehension and collaboration.

Objectives:

To evaluate the effect of ethnic background and mother-tongue language on the diagnostic yield (DY) of ILRs.

Methods:

Patients at two medical centers in Israel, who had ILRs as part of syncope workup were included. Inclusion criteria were age over 18 years and an ILR for at least one year (or less if the cause of syncope was detected). Patient demographics, ethnic background, and previous medical history were recorded. All findings from ILR recordings, activation mode (manual vs. automatic), and treatment decisions (none, ablation, device implantation) were collected.

Results:

The study comprised 94 patients, 62 Jews (i.e., ethnic majority) and 32 non-Jews (i.e., ethnic minority). While baseline demographic characteristics, medical history, and drug therapy were similar in both groups, Jewish patients were significantly older at the time of device implantation: 64.3 ± 16.0 years of age vs. 50.6 ± 16.9, respectively; (P < 0.001). Arrhythmias recorded in both groups as well as treatment decisions and device activation mode were similar. Total follow-up time from device implantation was longer in the non-Jewish vs. the Jewish group (17.5 ± 12.2 vs. 24.0 ± 12.4 months, respectively; P < 0.017).

Conclusions:

The DY of ILR implanted for unexplained syncope did not seem to be influenced by patient's mother-tongue language or ethnicity.

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