Case Report (n=1)
This case highlights the importance of thorough cardiac assessment in newborns to identify rare conditions like the LQT3 variant presenting as bradycardia, which can be effectively managed with weight-adjusted beta-blocker therapy.
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May prompt LQTS evaluation in bradycardic neonates; leaves open optimal management strategies pending larger studies.
Long QT Syndrome (LQTS) is a rare hereditary canalopathy, characterized by prolonged ventricular repolarization, which can lead to malignant tachyarrhythmias at a young age. Treatment typically involves healthy lifestyle changes and β-blocker therapy. In specific cases, the implantation of an implantable cardioverter defibrillator (ICD) can be an option. In this report, we present the case of a newborn presenting with bradycardia in his initial screening examination, who was subsequently diagnosed with LQTS, specifically variant LQT3, a rare finding.
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Afonso et al. (2024) conducted a case report in Long QT Syndrome (LQT3 variant) (n=1). Propranolol was evaluated.
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