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Is a targeted intensive intervention effective for improvements in hypertension control? A randomized controlled
Lene Ørskov Reuther1, Maja Skov Paulsen, Morten Andersen
1Department of Clinical Pharmacology, Bispebjerg Hospital, København NV, Denmark. lreu0001@bbh.regionh.dk
Insights
Implementing interventions for general practitioners (GPs) did not significantly improve blood pressure (BP) control in hypertensive patients. Neither moderate nor intensive interventions showed additional benefits in reducing BP or the proportion of patients with high BP.
Area of Science:
- Cardiovascular Medicine
- Public Health
- General Practice
Background:
- High blood pressure (BP) is a major stroke risk factor, and antihypertensive therapy is crucial for reducing cardiovascular events.
- Despite treatment, achieving controlled BP in hypertensive patients remains a significant clinical challenge.
Purpose of the Study:
- To assess the effectiveness of an intervention aimed at improving general practitioners' (GPs) management of hypertension.
- To determine if targeted interventions can enhance BP control rates in primary care settings.
Main Methods:
- A cluster randomized trial involving 124 general practices and 2,646 hypertensive patients across three Danish regions.
- Practices were randomized into intensive intervention, moderately intensive intervention, or control groups.
- Key outcomes included changes in the proportion of patients with high BP, systolic BP (SBP), and diastolic BP (DBP) from baseline to follow-up.
Main Results:
- The proportion of patients with high BP decreased by approximately 9% points between 2007 and 2009.
- Mean SBP significantly reduced by 3.61 mmHg and DBP by 1.99 mmHg during the study period.
- No significant additional impact on BP reduction was observed in the intervention groups compared to the control group.
Conclusions:
- Neither the moderate nor the intensive intervention targeting GPs demonstrated a significant impact on improving blood pressure control.
- The study suggests that current intervention strategies may not be sufficient to enhance BP management in primary care for hypertensive patients.
Background:
High blood pressure (BP) is one of the most important risk factors for stroke, and antihypertensive therapy significantly reduces the risk of cardiovascular morbidity and mortality. However, achieving a regulated BP in hypertensive patients is still a challenge.
Objective:
To evaluate the impact of an intervention targeting GPs' management of hypertension.
Methods:
A cluster randomized trial comprising 124 practices and 2646 patients with hypertension. In the Capital Region of Denmark, the participating GPs were randomized to an intensive or to a moderately intensive intervention group or to a control group and in Region Zealand and Region of Southern Denmark, practices were randomized into a moderately intensive intervention and to a control group. The main outcome measures were change in proportion of patients with high BP and change in systolic BP (SBP) and diastolic BP (DBP) from the first to the second registration.
Results:
The proportion of patients with high BP in 2007 was reduced in 2009 by ~9% points. The mean SBP was reduced significantly from 2007 to 2009 by 3.61 mmHg [95% confidence interval (CI): -4.26 to -2.96], and the DBP was reduced significantly by 1.99 mmHg (95% CI: -2.37 to -1.61). There was no additional impact in either of the intervention groups.
Conclusion:
There was no impact of the moderate intervention and no additional impact of the intensive intervention on BP.
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