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Drug-related deaths in a university central hospital

  • Pharmacoepidemiology and Prescription
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Objectives. The objectives were to determine the incidence of drug-related deaths in a university hospital and to find out which drugs are most commonly involved in these cases.

Methods. The files of 1511 death cases (97.7% of all death cases in the Helsinki University Central Hospital during the year 2000) were scrutinised. In the cases of suspected drug-related deaths excluding suicides, the medication, its duration and indications, the route of drug administration, and the type of the adverse reactions were determined. The probability of a fatal adverse drug reaction was classified according to WHO's classification. In addition, the incidence of drug-related deaths was calculated from the death certificates.

Results. Scrutiny of the patients' files showed that 75 of the death cases (5.0% of all deaths) were certainly or probably drug-related. This corresponds to about 0.05% of all hospital admissions. The most common adverse reactions were neutropenia caused by antineoplastic agents and gastrointestinal or intracranial haemorrhage due to anticoagulants or nonsteroidal anti-inflammatory drugs (NSAIDs). The incidence of drug-related deaths is only 0.5% when based on the International Classification of Diseases (ICD) codes in death certificates.

Conclusions. Adverse drug reaction is a significant cause of death. Most of the deaths occurred in seriously ill patients with high-risk medication and they are seldom preventable. Incidence figures based on death certificates only may seriously underestimate the true incidence of fatal adverse reactions.

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Juntti-Patinen, .L., Neuvonen, .P. Drug-related deaths in a university central hospital. Eur J Clin Pharmacol 58, 479–482 (2002).

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