Aims Cutaneous manifestations are frequently reported in association with drug use. The aim of this study was to analyse the skin reactions reported to the spontaneous surveillance systems of four Italian regions (Friuli Venezia Giulia, Lombardy, Sicily and the Veneto), and correlate the reports with estimated drug consumption during the same period, paying particular attention to the reactions to antimicrobial agents and nonsteroidal anti-inflammatory drugs (NSAIDs). Methods All of the adverse drug reactions (ADRs) reported spontaneously between January 1996 and December 1997 to the surveillance systems of four Italian regions (a total population of about 20 million people) were analysed by a panel of experts including dermatologists. On the basis of the Critical Term List of the World Health Organization (WHO), the reactions were classified as either serious or nonserious events. Drug consumption was expressed as a daily defined dose (DDD)/1000 inhabitants/day. Results A total of 2224 adverse skin reaction reports (44.7% of all of the reported ADRs) were identified, making a reporting rate of about 5.5 per 100 000 inhabitants/year. The female/male ratio was 1.58, and the reporting rate progressively increased with age. The drug categories with the highest number of cutaneous reactions were antimicrobials, followed by NSAIDs, analgesics and radiology contrast media. There was a total of 372 (16.9%) serious reaction reports, the most frequent being angioedema (171 cases), erythema multiforme (68 cases) and photosensitivity (37 cases). Co-trimoxazole, followed by the cephalosporins and fluoroquinolones, were associated with the highest consumption-related reporting rate among the antimicrobials, and aspirin and dipyrone among the NSAIDs and analgesics. Conclusions Spontaneous reports from four Italian regions revealed that the skin was the organ most frequently affected by ADRs. The paper shows the validity of a regional decentralized system in Italy. health service use and costs [4, 6].
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The excess risk of major upper gastrointestinal tract complications associated with outpatient use of ketorolac suggests an unfavorable risk-benefit assessment compared with other NSAIDs. More data are required to reduce the uncertainty about the apparent small increased risk of upper gastrointestinal tract bleeding in patients using calcium channel blockers.
The authors evaluated the risk of venous thromboembolism associated with hormone replacement therapy in a cohort of 265,431 women aged 45-79 years who did not have major risk factors for venous thromboembolism. Through review of hospital charts, 171 cases were confirmed (pulmonary embolism = 77; deep venous thrombosis = 94). Ten thousand controls were randomly sampled. The risk of venous thromboembolism among nonusers of hormone replacement therapy was 1.3 per 10,000 women per year. Current users of hormone replacement therapy had 2.3 times higher risk of venous thromboembolism (95 percent confidence interval 1.0-5.3) compared with nonusers. The increased risk was restricted to the first year of treatment.
Background: The frequency of drug prescription errors is high. Excluding errors in decision making, the remaining are mainly due to order ambiguity, non standard nomenclature and writing illegibility. The aim of this study is to analyse, as a part of a continuous quality improvement program, the quality of prescriptions writing for antibiotics, in an Italian University Hospital as a risk factor for prescription errors.
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