Key result
LQT2 and multiple mutations linked to severe outcomes, with ~58% requiring CD implantation.
Why the study?
The study was conducted to evaluate clinical characteristics, adverse events, and outcomes in patients with various genetic types of long QT syndrome.
What are the clinical characteristics and outcomes associated with various genetic types of long QT syndrome?
Population
24 patients with a clinical diagnosis of LQTS
Comparison
Different genetic types of LQTS
Design
Observational cohort study
Follow-up
5 years
Authors
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LQT2 and multi-mutation LQTS may warrant closer surveillance; leaves open whether genotype-specific management improves outcomes.
Observational (n=24)
What are the clinical characteristics and outcomes associated with various genetic types of long QT syndrome?
Patients with LQT2 and multiple genetic mutations exhibit more severe clinical manifestations, including higher rates of life-threatening arrhythmias and ICD implantation, compared to those with LQT1.
Комиссарова et al. (2022) conducted an observational in Long QT syndrome (LQTS) (n=24). Genetic typing vs. Different genetic types was evaluated on Clinical characteristics, adverse events, and outcomes. LQT2 and multiple mutations were associated with the most severe clinical manifestations, including clinical death and QTc >500 ms, with 58.3% of the total cohort requiring CD implantation.
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