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Paroxysmal atrioventricular (AV) block, with up to 5.1 seconds of asystole

(Source: Jailani M, Barbarawi M, Tigadi S. Post total thyroidectomy deglutition syncope. Cureus 2022;14[12]:e32836. Creative Commons Attribution [CC-BY 4.0] license, creativecommons.org/licenses/by/4.0.)

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