Alamer Alkhayer

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1 Introduction Atrial fibrillation (AF) is the most common type of arrhythmia worldwide, and its prevalence in middle- to low-income countries is underestimated [1]. AF in the developed world is well studied. Still, there is little data on AF management and demographics in the Middle East, with only four data registries [2]. AF-related research in Arab countries contributed only 0.7% of AF research worldwide [3]. Syria has been suffering from a conflict since 2011.

1 Introduction Atrioventricular block (AVB) is a significant cardiac conduction disorder characterized by impaired transmission of electrical impulses from the atria to the ventricles. This condition can manifest in various degrees, ranging from first-degree block, which is often asymptomatic, to complete heart block (CHB), which can lead to severe clinical consequences such as syncope or sudden cardiac death [1, 2].