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Population-based studies improve outcome in hypertensive patients
Edoardo Casiglia1, Alberto Mazza, Valerie Tikhonoff
1Department of Clinical and Experimental Medicine, University of Padua, Italy. edoardo.casiglia@unipd.it
Insights
Hypertension intervention therapy significantly reduced cerebrovascular events compared to observation or no contact. While observation improved blood pressure control, dedicated intervention is crucial for stroke prevention.
Area of Science:
- Cardiology
- Neurology
- Public Health
Background:
- Hypertension is a major risk factor for cerebrovascular and coronary events.
- Effective management strategies for hypertension are crucial for public health.
- The long-term impact of different hypertension management approaches on clinical outcomes requires further investigation.
Purpose of the Study:
- To compare the effects of dedicated hypertension intervention therapy versus observation on blood pressure control and clinical outcomes.
- To assess the incidence of cerebrovascular and coronary events in different management groups.
- To evaluate the long-term impact of intervention withdrawal on mortality.
Main Methods:
- A population-based study involving three groups: intervention therapy (Hypertension Team), observation with lifestyle advice, and no contact.
- Blood pressure (BP) was monitored over two 7-year phases.
- Cerebrovascular and coronary events, as well as mortality, were recorded.
Main Results:
- After Phase A, both intervention and observation groups showed significant BP reduction compared to the control group.
- The intervention group had a significantly lower incidence of fatal and nonfatal cerebrovascular events compared to observation and control groups.
- No significant differences in mortality were observed between groups during Phase B.
Conclusions:
- Simple observation and lifestyle advice can improve blood pressure control.
- Dedicated hypertension intervention therapy is necessary to significantly reduce the incidence of stroke.
- Long-term follow-up is essential to understand the sustained effects of hypertension management strategies.
Abstract:
In a population-based study, three groups of individuals were examined: 334 hypertensive subjects (group 1) received 7 years of intervention therapy by a Hypertension Team (HyT); 418 subjects (group 2) were simply observed with blood pressure (BP) measurement on demand and given lifestyle advice; and 437 subjects (group 3) had no contact with HyT. Hypertension intervention therapy was then withdrawn, leaving patients to their general practitioners. After phase A, BP was significantly lower than baseline in group 1 (-14.2%, P < .01) and group 2 (-12.4%, P < .01), whereas it was unchanged in group 3. Cerebrovascular (but not coronary) events were observed less in group 1 (fatal 2.7%, nonfatal 3.7%) than in group 2 (7.2% and 5.2%, respectively, both P < .001 v group 1) or group 3 (8.3% and 6.9%, respectively, both P < .001 v group 1). During a further 7 years of observation (phase B), no between-group differences in mortality were observed. We conclude that simple observation improves BP control, but that intervention is needed to reduce the incidence of stroke.