# Congenital Long QT Syndrome (LQTS) in Infancy: A Challenging Case

## TL;DR

This paper presents a case of congenital Long QT Syndrome in an infant and highlights the importance of early diagnosis to prevent life-threatening arrhythmias.

## Contribution

The contribution is a case report emphasizing the need for awareness and thorough evaluation in diagnosing congenital LQTS in infancy.

## Key findings

- A two-month-old female presented with blueish discoloration and a family history of early death, suggestive of LQTS.
- The case highlights diagnostic challenges due to overlapping symptoms with common pediatric illnesses.
- The paper stresses the importance of family history and thorough evaluation for early diagnosis of LQTS.

## Abstract

Long QT syndrome (LQTS), is an arrhythmia disorder, related to ventricular myocardial repolarization characterized by a prolonged QT interval on the electrocardiogram that can lead to symptomatic ventricular arrhythmias and increase the mortality rate. The prevalence of congenital LQTS is about 1 in 2000 live births.

Here, we report the case of a two-month-old female, with a significant family history of early death, who was brought to our emergency with an episode of blueish discoloration. The initial workup was positive for COVID-19 in the respiratory panel, so she was admitted as a case of bronchiolitis. It was a challenge because of the overlapping presentation between a serious condition and other common pediatric illnesses.

Furthermore, the paper aims to increase awareness of this condition among physicians and emphasizes the importance of obtaining a complete medical history, physical examination, and family screening in selected cases to facilitate early diagnosis and timely management.