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- W619088487 abstract "We describe a case of an acute overdose in a former professional cyclist with a heavy past of doping and drug addiction. A 31-years-old man was admitted in hospital for generalized tonico-clonic seizures concomitant with hyperthermic syndrome and unstable hemodynamic status. During his transport to the emergency department, he presents two cardiopulmonary arrest, which required an external electric shock and adrenaline administration. History of the disease revealed that patient is in a context of benzodiazepines withdrawal. He complained for five days about shivers, sweats, headaches and nausea with change of his general state. Moreover, he would have taken cocaine at night previous his admission. During his coverage by emergency service, the body temperature = 40 °C, SpO2 = 70%, blood pressure = 70/40 mmHg and heart rate = 70/min. Several cardiac, biological and toxicological examinations were implemented during the hospitalization. Toxicology analysis was realized on blood. Blood screening was realized by LC-MS/MS, after liquid/liquid extraction in acidic and basic conditions. Specific methods were done for cocaine and tramadol quantification by LC-MS/MS, and for lidocaine by GC-MS. Other identified substances were quantified by LC-MS/MS or immunoassay analyses. The electrocardiogram highlights conduction abnormalities (slow QT then ventricular extrasystoles). Biological examination revealed a mix severe acidosis (pH = 7.27, paCO = 6.64 kPa, lactates = 5.4 mmol/L), an hypokaliemia (2.2 mmol/L), and an acute kidney failure with creatinine at 169 μmol/L associated with rhabdmyolyse (CPK = 13,000 U/L). Toxicological research revealed the presence in blood of high concentration of cocaine and its metabolites (cocaine concentration = 290 ng/mL, benzoylecgonine concentration = 3000 ng/mL). Moreover, several medicine drugs were also detected in blood sample (tramadol, acetaminophen, lidocaine and hydroxyzine). All are in therapeutic concentrations excepted tramadol, which was measured at the concentration of 1880 ng/mL (and 2000 ng/mL for O-DMT, its active metabolite). This fatal overdose with a massive cocaine consumption associated with a large dose of tramadol presented a mixt adrenergic-serotoninergic syndrome with seizures, hyperthermia, blood pressure fluctuations, acidosis and hypokaliemia and rhabdomyolysis. Let us note that the high concentration of tramadol found in this case, has probably potentiate the toxic effect of cocaine. Interestingly, the main part of the toxic symptoms observed linked to tramadol seem rather in touch with the inhibition of the recapture of monoamine than with the opioid activity leading to mixt adrenergic-serotoninergic syndrome [1]. This ascendancy of serotoninergic syndrome may be related with drug-abusing profile of the patient." @default.
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- W619088487 date "2015-06-01" @default.
- W619088487 modified "2023-09-25" @default.
- W619088487 title "Fatal poisoning with cocaine and tramadol in a former professional cyclist" @default.
- W619088487 cites W1966160500 @default.
- W619088487 doi "https://doi.org/10.1016/j.toxac.2015.03.068" @default.
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