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What blood pressure levels should be treated?
1Ospedale Maggiore, Istituto di Clinica Medica Generale e Terapia Medica, Università di Milano.
Insights
Starting blood pressure treatment requires careful consideration. Guidelines suggest initiating antihypertensive therapy for diastolic pressure 100 mmHg or above, with cautious observation for readings between 90-99 mmHg.
Area of Science:
- Cardiology
- Hypertension Management
Background:
- Current guidelines for initiating blood pressure treatment are provisional and lack definitive consensus.
- Expert agreement exists on treating diastolic pressure ≥ 100 mmHg.
Purpose of the Study:
- To provide clarity on blood pressure thresholds for commencing antihypertensive therapy.
- To align treatment recommendations with existing international guidelines.
Main Methods:
- Review and synthesis of expert consensus and international guidelines (WHO, ISH).
- Analysis of cardiovascular risk associated with different diastolic pressure ranges (90-99 mmHg, 95-100 mmHg).
Main Results:
- Diastolic pressure 90-99 mmHg presents a relatively low, albeit increased, risk.
- Treatment initiation for diastolic pressure 95-100 mmHg is recommended after several months of observation.
- Systolic values, other risk factors, and family history influence treatment decisions for diastolic pressure 90-95 mmHg.
Conclusions:
- A nuanced approach is necessary for initiating antihypertensive therapy, especially in the 90-99 mmHg diastolic range.
- Observation and consideration of multiple risk factors are crucial for personalized treatment decisions in borderline hypertension.
Abstract:
Information concerning the level of blood pressure at which treatment should be commenced is incomplete, and current guidelines have to be considered of provisional suggestions on which many experts have a consensus. There is general agreement on the need to administer anti-hypertensive therapy when diastolic pressure is 100 mmHg or above. At diastolic values of 90-99 mmHg the risk, albeit increased, is relatively low. The wisest practical solution, which coincides with guidelines from the World Health Organization and the International Society of Hypertension, is to commence treatment if diastolic pressure is between 95 and 100 mmHg, but only after several months of observation with repeated measurements. At values between 90 and 95 mmHg, a decision in favor of treatment will be influenced by concomitant elevation of systolic values and by the occurrence of other risk factors or a strong family history of cardiovascular disease.