- Patients with long QT syndrome (LQTS) face potential threats from COVID-19 vaccination. Fever is one of the issues that is not uncommon after vaccination, and it usually takes place within 2 days. In particular, patients with type 2 LQTS based on trafficking-deficient variants are probably vulnerable to arrhythmogenicity under febrile conditions. Furthermore, myocarditis is one of the rare complications that is possibly associated with acquired QT prolongation and puts patients with LQTS at risk of life-threatening arrhythmia.
- During the early stages of the coronavirus disease 2019 (COVID-19) pandemic, a marked increase in sudden cardiac death (SCD) was observed. The p.S1103Y-SCN5A common variant, which is present in ∼8% of individuals of African descent, may be a circumstance-dependent, SCD-predisposing, proarrhythmic polymorphism in the setting of hypoxia-induced acidosis or QT-prolonging drug use.
- Since emerging from Wuhan, China, in late 2019, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the virus responsible for coronavirus disease 2019 (COVID-19), has infected >3.2 million individuals worldwide and ∼1 million in the United States (as of April 29, 2020).1,2 Despite the institution of measures designed to “flatten the curve,” COVID-19 has claimed the lives of >225,000 individuals worldwide and >60,000 individuals in the United States alone (as of April 29, 2020).2 Of note, mortality estimates in some of the hardest hit regions have already or may need to be revised to account for a spike in sudden deaths occurring at home.