The occurrence of ventricular tachyarrhythmias seems to follow circadian, daily, and seasonal distributions. The aim of the TEMPEST study (Circannual Pattern and Temperature-Related Incidence of Electrical Storm) was to identify potential temporal patterns of electrical storm (ES), in which a cluster of ventricular tachycardias or ventricular fibrillation, negatively affects short- and long-term survival.
Electric storm incidence is not homogenous over time but seems to have a clustered pattern, with a higher incidence during daytime hours and working days. ES is associated with an increase in monthly temperature variation.
- Guerra F, Bonelli P, Flori M, Cipolletta L, Carbucicchio C, Izquierdo M, Kozluk E, Shivkumar K, Vaseghi M, Patani F, Cupido C, Pala S, Ruiz-Granell R, Ferrero A, Tondo C, Capucci A. Temporal Trends and Temperature-Related Incidence of Electrical Storm: The TEMPEST Study (Temperature-Related Incidence of Electrical Storm). Circ Arrhythm Electrophysiol 2017 Mar;10(3). Go to PubMed