Incidence and other epidemiological data were similar to those 20 years ago, whereas the clinical course was more benign. It seems reasonable to believe that this is due to the introduction of effective antivenoms.
Antivenom treatment was associated with a reduced morbidity in severe V. berus envenoming. However, the occurrence of allergic side-effects is not negligible with this type of antivenom.
In 1987 two lethal adult cases of accidental ethylene glycol poisoning were given spectacular attention in the Swedish mass media. This resulted in an epidemic of intentional ethylene glycol poisonings. In addition to six cases related to alcohol abuse, another 30 severe suicidal poisonings were reported to the Swedish Poison Information Centre in five months. The clinical course and outcome in these 36 severe cases are reviewed. The primary clinical manifestations were metabolic acidosis, CNS disturbances and kidney damage with circulatory failure in the most severe cases. Mortality was 17%. Fragmentation of the normal striation in heart cells was found in two of the fatal cases and severe brain damage in all fatal poisonings. The degree of acidosis but not the serum ethylene glycol level correlated with both kidney damage and outcome. Treatment included ethanol, correction of the metabolic acidosis and dialysis. Four patients with serum ethylene glycol concentrations of 10-20 mmol/L (620-1240 mg/L) but with no or minimal metabolic acidosis were treated with ethanol alone; none of these patients developed renal damage.
Severe caffeine poisoning is rare but associated with a high mortality. The symptoms are mainly attributable to hyperadrenergic stimulation, are relatively well known and described in the literature. Transient rises in plasma lactate levels may occur but are, however, less well described. We present a case of serious caffeine poisoning with a concomitant rise in lactate treated with a non-selective beta-blocker and discuss briefly the symptomatology, the management of caffeine poisoning and the association between lactate and metabolic acidosis.
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