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  • 1
    ISSN: 1432-1041
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1041
    Keywords: Key words Adverse drug event reporting ; Hospitalized ; patients ; Source/relative value of reports
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objective: This study investigated the relative value of adverse drug events reported by doctors, nurses and patients. Methods: The study was conducted on a total of four wards: the paediatric and internal medicine wards (including geriatric patients) of two peripheral hospitals in the Netherlands. Adverse drug events were collected by spontaneous reporting (doctor and nurse reports) and by daily ward visits, during which the patients were interviewed by a hospital pharmacist (patient reports). Criteria for relative value of the reported adverse drug events were the number of potentially serious reactions, the number of reactions not mentioned in the patient information leaflet and the number of reactions reported to new drugs (5 years or less on the Dutch market). No formal causality assessment was applied. Results: Over a period of 2 months in 1996 (Hospital I) and 2 months in 1997 (Hospital II) a total of 620 patients were included in the study and adverse drug events were reported in 179 (29%) of these cases. Doctors reported a statistically significant larger number of serious (26% of all doctor reports; odds ratio (OR) 3.2; confidence interval (CI) 1.2–8.7) and unknown (39%; OR 2.5; CI 1.0–6.0) adverse drug events than patients themselves during the daily ward visit. Doctors also reported more serious and unknown adverse drug events than nurses. Adverse reactions to new drugs were reported during the daily ward visit only (8% of all daily ward visit reports). Conclusion: This study reconfirms that doctors are the main source for reports of serious and unknown adverse drug events in hospitalized patients. However, patients themselves seem to report more adverse reactions to new drugs (during the daily ward visit). By focusing on patients using new drugs, the daily ward visit might become cost-effective. This needs to be explored in future studies.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1432-1041
    Keywords: Key words Osteoporosis ; Treatment ; Bisphosphonates
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Objective: To investigate whether the alkylbisphosphonate etidronate is associated with an increased risk of gastrointestinal symptoms. Methods: We conducted an observational follow-up study on a possible relationship between etidronate use and the risk of gastrointestinal symptoms in a cohort of 2754 women over 50 years of age. The study was performed with data on drug prescriptions obtained from the PHARMO database in the Netherlands. Women were included when they used either cyclical etidronate (n=1050) or estrogen (n=1704) for at least 14 days. They were followed-up for incident use of antiulcer drugs while on exposure medication. Results: The mean ages were 72 years and 59 years in the etidronate and estrogen groups, respectively. In total, there were 95 women with incident prescriptions for gastrointestinal events after a median duration of follow-up of 2.7 months (range 0.1–19.4 months). The crude relative risk of a gastrointestinal event for etidronate compared with estrogen use was 1.2 [95% confidence interval (95% CI) 0.8–1.8]. Adjusted for baseline age, use of corticosteroids, salicylates and nonsteroidal anti-inflammatory drugs, the relative risk reversed to 0.6 (95% CI 0.4–1.2). Conclusion: The use of cyclical etidronate is not associated with an elevated risk of symptoms of peptic ulcer disease.
    Type of Medium: Electronic Resource
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  • 4
    ISSN: 1432-1041
    Keywords: Key words Asthma therapy ; Corticosteroids; hospitalisation ; case-control study ; compliance ; attitude ; behaviour
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Medicine
    Notes: Abstract Background: The relationship between therapy and adverse outcome in asthma is debated especially for naturally occurring situations. This is due in part to insufficient information regarding actual use of medications. Objective: This study was conducted to clarify the relationship between actual intake of anti-asthma drugs and asthma hospitalisation, considered as an outcome. Methods: A case-control study was performed. Patients hospitalised for an asthma exacerbation were matched to community controls identified in surrounding general practices. Patients were questioned to identify prior use of anti-asthma medications, level of use of inhaled corticosteroids and attitude towards therapy. Results: Twenty-three cases and 31 matched controls were interviewed. Cases tended to have more severe asthma than controls, as judged by more frequent use of oral corticosteroids. Cases tended to make more frequent use of oral xanthines and inhaled anticholinergics, but the proportion of patients using inhaled β2-adrenoceptor agonists and inhaled corticosteroids was similar in both groups. Use of lower doses of inhaled corticosteroids was associated with an increased risk of hospitalisation, while higher dosage was associated with␣decreased risk. Cases and controls differed as to their answers to a questionnaire concerning attitudes: cases expressed less interest in optimal usage of inhaled␣corticosteroids than controls; they also expressed more confidence in inhaled β2-agonists. When both risks were combined, overconfidence in β2-agonists and suboptimal use of inhaled steroids, the relationship with hospitalisation was significant (OR 5.5, 95% CI 1.1; 26.1). Conclusion: The results suggest that patients' attitudes to inhaled corticosteroids and actual consumption of these medications are directly related to adverse outcome in asthma.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1365-2036
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Immediately after the introduction of the proton pump inhibitor lansoprazole, a 2-year follow-up study was started to evaluate patterns of use, safety and effectiveness of this drug in naturally occurring groups of patients in the Netherlands. Medical data were recorded by participating physicians while medication listings were provided by pharmacists.〈section xml:id="abs1-2"〉〈title type="main"〉Methods:The study was designed according to the Safety Assessment of Marketed Medicines guidelines. The only inclusion criterion was the use of lansoprazole prior to entry into the study.〈section xml:id="abs1-3"〉〈title type="main"〉Results:A total of 5669 lansoprazole users was included by 374 general practitioners and 117 specialists. Lansoprazole was mostly prescribed in patients with reflux oesophagitis (55.1%), `gastritis' (26.8%) and duodenal ulcers (11.4%), sometimes as part of a Helicobacter pylori eradication therapy (8.5%). For their complaints most patients (91.1%) had previously used acid-related drugs. Improvement or disappearance of complaints was achieved in 88.9% and 90.5% of patients after 4 and 8 weeks of treatment, respectively. Diarrhoea (4.1%), headache (2.9%) and nausea (2.6%) were the most frequently reported adverse events.〈section xml:id="abs1-4"〉〈title type="main"〉Conclusion:The patterns of use of lansoprazole in daily practice deviated from the recommendations in the information leaflet. Nevertheless, lansoprazole was found to be safe in this naturally occurring group of users. Effectiveness appeared to be comparable to results found in clinical trials of the registered indications for lansoprazole.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1573-739X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
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  • 7
    Publication Date: 2018-05-27
    Description: Objectives and setting Conflicting results from studies using electronic health records to evaluate the associations between type 2 diabetes and cancer fuel concerns regarding potential biases. This study aimed to describe completeness of cancer recording in UK primary care data linked to hospital admissions records. Design Patients aged 40+ years with insulin or oral antidiabetic prescriptions in Clinical Practice Research Datalink (CPRD) primary care without type 1 diabetes were matched by age, sex and general practitioner practice to non-diabetics. Those eligible for linkage to Hospital Episode Statistics Admitted Patient Care (HES APC), and with follow-up during April 1997–December 2006 were included. Primary and secondary outcome measures Cancer recording and date of first record of cancer were compared. Characteristics of patients with cancer most likely to have the diagnosis recorded only in a single data source were assessed. Relative rates of cancer estimated from the two datasets were compared. Participants 53 585 patients with type 2 diabetes matched to 47 435 patients without diabetes were included. Results Of all cancers (excluding non-melanoma skin cancer) recorded in CPRD, 83% were recorded in HES APC. 94% of cases in HES APC were recorded in CPRD. Concordance was lower when restricted to same-site cancer records, and was negatively associated with increasing age. Relative rates for cancer were similar in both datasets. Conclusions Good concordance in cancer recording was found between CPRD and HES APC among type 2 diabetics and matched controls. Linked data may reduce misclassification and increase case ascertainment when analysis focuses on site-specific cancers.
    Keywords: Open access, Epidemiology
    Electronic ISSN: 2044-6055
    Topics: Medicine
    Published by BMJ Publishing
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