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Published on: July 28, 2018
[Why not always diuretics?]
1Hjerteavdelingen, Haukeland Universitetssykehus, 5021 Bergen. per.omvik@med.uib.no
Insights
Norway
Area of Science:
- Cardiovascular medicine
- Pharmacology
- Public health policy
Context:
- New Norwegian guidelines recommend thiazide diuretics as first-line antihypertensive treatment.
- This change is linked to a 2004 parliamentary resolution and the ALLHAT study.
- The ALLHAT study involved elderly, high-risk patients, including a significant proportion of African Americans.
Purpose:
- To evaluate the suitability of the Antihypertensive and Lipid-Lowering Treatment to Prevent Heart Attack (ALLHAT) study findings for informing Norwegian antihypertensive treatment guidelines.
Summary:
- The ALLHAT study, despite influencing Norwegian guidelines, has significant limitations in its design, results, analysis, and interpretation.
- These shortcomings render the ALLHAT study unsuitable as a foundation for general antihypertensive treatment guidelines in Norway.
Impact:
- Critiques the reliance on the ALLHAT study for national treatment guidelines.
- Highlights the need for robust evidence in formulating public health policies for hypertension management.
- Suggests re-evaluation of the basis for current Norwegian antihypertensive medication guidelines.
Background:
New guidelines adopted in Norway for antihypertensive medication implies prescription of a thiazide diuretic as the drug of first choice. The background for the change in the rules for prescription drugs paid for by the National Insurance system with a capped co-payment is a resolution of the Norwegian parliament as part of a budget compromise for 2004. The resolution was supported by results from the ALLHAT study (antihypertensive and lipid-lowering treatment to prevent heart attack trial).
Methods:
ALLHAT was carried out in a group of elderly, high-risk patients with a large proportion of Afro-Americans.
Results And Interpretation:
ALLHAT has important shortcomings with regard to design, results, analysis and interpretation. The trial is considered unfit as a basis for general guidelines on antihypertensive treatment in Norway.
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