• Eryk Matuszkiewicz, Magdalena Łukasik-Głębocka, Karina Sommerfeld, Artur Tezyk, Barbara Zielińska-Psuja, and Czesław Zaba.
• Prz. Lek. 2015 Jan 1;72(1):42-4.

AbstractThe consumption of energy beverages is increasing, especially among young people. The increasing consumption of these drinks increases the data of side effects. Case report: A 26-year old male was admitted to Toxicology Department suspected of intoxication due to ethyl alcohol and unknown psychoactive substances. The patient lost consciousness during a party in which he drank an unknown amount of ethyl alcohol mixed with an energy beverage ("Red Bull"). The patient and his friends strongly denied the use of psychoactive substances. On admission, the patient was stable, but unconscious (GCS 8 points), pupils wide, symmetric with weak reaction to light, respiratory rate 15/min. Neurological examination did not reveal any abnormalities. During the hospitalization, somnolence slowly disappeared and the patient became restless, with recurrent episodes of seizures not reacting to diazepam, clonazepam and midazolam infusion. The seizures finally abated after administration of barbiturates (Thiopental). This, in turn, caused respiratory insufficiency, requiring patient intubation and mechanical ventilation. The patients mental status and respiratory status slowly improved. After regaining consciousness, the patient strongly denied the use of psychoactive substances or of chronic alcohol use. He confirmed the single use of high, but not clearly defined, caffeine dosage (in the form of "Red Bull") mixed with alcohol. He mentioned that eight months earlier in similar circumstances he was admitted to the neurology department due to an episode of seizures. Ultimately the origin was not established, despite broad diagnostic testing. Thus the origin of the seizures was suggested to be of a toxicological origin. The patient was released home in good condition, without any side effects of the poisoning. The psychological examination doe not reveal any symptoms of alcohol or psychoactive substances addiction. In our case, due to the unclear nature of the history, we preformed broad diagnostic testing on admission to the hospital, which do not reveal the presence of any toxic substances except ethanol; concentration in the blood was 2,41 gil. Unfortunately, serum caffeine levels were not measured. There was no identification of any other factors that could be responsible for the observed symptoms. It appears that based on the interview, clinical manifestation, and negative toxicology laboratory testing (excluding the presence of ethanol), it is possible to connect the seizure state with the consumption of a high dose of energy drinks, rich in caffeine and taurine.

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