Key result
Case illustrations highlight the variable clinical presentation of prolonged QT interval and the need for high vigilance in clinical evaluation and ECG interpretation for Long QT syndrome.
Case Report
Highlights the variable clinical presentation of prolonged QT interval and the critical need for accurate ECG interpretation in diagnosing Long QT syndrome.
Variable LQTS presentations warrant ECG vigilance; case reports leave open prospective validation of diagnostic criteria.
Long QT syndrome (LQTS) is a rare potentially life-threatening condition. Physicians must remain vigilant and consider LQTS as a possible etiology in patients with a history of syncope. Prolongation of the QT interval on electrocardiogram (ECG) is an essential component for the diagnosis of LQTS, despite the limitations of this technique. Experience of analyzing the ECG and calculating corrected QTc still remain relevant and are the mainstay diagnostic tools. Often, the first sign of the problem is observed after careful evaluation of the resting ECG for the hallmark of the disorder. Unfortunately, more than 60% of physicians-even cardiologists-have been known to misinterpret the QT interval on ECG. The cases discussed in this article highlight the variable clinical presentation of prolonged QT interval and the need to be highly vigilant in clinical evaluation.
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Razakjr et al. (2010) conducted a case report in Long QT Syndrome. Case illustrations highlight the variable clinical presentation of prolonged QT interval and the need for high vigilance in clinical evaluation and ECG interpretation for Long QT syndrome.
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