What are the similarities between stress, sudden cardiac death in Gallus gallus and sudden unexpected death in people with epilepsy

Abstract

Individuals with epilepsy are at higher risk of sudden unexpected death in epilepsy (SUDEP), responsible for 7.5% to 17% of all deaths in epilepsy. Many factors are current associated with SUDEP and possible effect of stress and cardiac arrhythmia are still not clear. Sudden death syndrome (SDS) in chickens is a disease characterized by an acute death of wellnourished and seeming healthy Gallus gallus after abrupt and brief flapping of their wings, similar to an epileptic seizure, with an incidence estimated as 0.5 to 5% in broiler chickens. A variety of nutritional and environmental factors have been included: but the exactly etiology of SDS is unknown. Studies had suggested that the hearts of broiler chickens are considerably more susceptible to arrhythmias and stress may induce ventricular arrhythmia and thus, sudden cardiac death. In this way, SDS in Gallus gallus could be an interesting model to study SUDEP. Key words: sudden cardiac death, epilepsy, Gallus gallus. similaridades entre stress, morte súbita cardíaca na espécie Gallus gallus e morte súbita em epilepsia resumo Indivíduos com epilepsia têm maior risco de sofrer morte súbita e inexplicada em epilepsia (SUDEP), responsável por 7,5% a 17% de todas as mortes em epilepsia. Diversos fatores têm sido associados com SUDEP e um possível efeito do stress e das arritmias cardíacas ainda não é claro. A síndrome da morte súbita (SDS) em galinhas é uma situação caracterizada por uma morte aguda em Gallus gallus bem nutridos e aparentemente saudáveis após um evento curto e abrupto de bater de asas, semelhante a uma crise epiléptica, com incidência de 0,5 a 5% em granjas. Uma ampla variedade de fatores nutricionais e ambientais tem sido considerada, mas a causa exata da SDS é desconhecida. Estudos têm sugerido que o coração das galinhas criadas em granjas é mais sensível a arritmias cardíacas e que o stress poderia levar a arritmias cardíacas e, portanto, a morte súbita cardíaca. Assim, SDS em Gallus gallus pode ser considerado um interessante modelo de SUDEP. Palavras-chave: morte súbita cardiac, epilepsia, Gallus gallus. CorrespondenceFulvio Alexandre Scorza Rua Botucatu 862 04023-900 São Paulo SP -Brasil

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