Relation between insufficient response to antihypertensive treatment and poor compliance with treatment: a prospective case-control study |
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Authors: | Reto Nuesch Kerstin Schroeder Thomas Dieterle Benedict Martina Edouard Battegay |
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Institution: | Outpatient Department of Internal Medicine, University Hospital, CH-4031 Basle, Switzerland |
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Abstract: | ObjectivesTo prospectively compare compliance with treatment in patients with hypertension responsive to treatment versus patients with treatment resistant hypertension.DesignProspective case-control study.SettingOutpatient department in a large city hospital in Switzerland, providing primary, secondary, and tertiary care.Participants110 consecutive medical outpatients with hypertension and taking stable treatment with at least two antihypertensive drugs for at least four weeks.ResultsComplete data were available for 103 patients, of whom 86 took ⩾80% of their prescribed doses (“compliant”) and 17 took <80% (“non-compliant”). Of the 49 patients with treatment resistant hypertension, 40 (82%) were compliant, while 46 (85%) of the 54 patients responsive to treatment were compliant.ConclusionNon-compliance with treatment was not more prevalent in patients with treatment resistant hypertension than in treatment responsive patients. What is already known on this topicFor many patients with arterial hypertension, blood pressure cannot be adequately controlled despite treatment with antihypertensive drugsPatients'' poor compliance with treatment is often suggested as the reason for lack of response to antihypertensive drugsWhat this study addsWhen treatment compliance was monitored in hypertensive patients following stable treatment regimens, no difference in compliance was found between those with treatment resistant hypertension and those responsive to treatmentFactors other than patients'' compliance with treatment regimens should be examined to explain lack of response to antihypertensive drugs |
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