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The value of self-measured home blood pressure in predicting stroke
Takayoshi Ohkubo1, Kei Asayama, Yutaka Imai
1Department of Clinical Pharmacology and Therapeutics, Graduate School of Pharmaceutical Sciences and Medicine, Tohoku University Hospital, Sendai, 980-8574, Japan. tohkubo@mail.tains.tohoku.ac.jp
Insights
Home blood pressure monitoring offers superior stroke risk prediction compared to standard measurements. Consistent home monitoring significantly enhances the accuracy of predicting future stroke events.
Area of Science:
- Cardiovascular Medicine
- Hypertension Research
- Stroke Prevention
Background:
- Conventional blood pressure measurements may not fully capture long-term cardiovascular risk.
- Home blood pressure monitoring (HBPM) is increasingly recognized for its clinical utility.
- Existing evidence on HBPM for stroke prediction is primarily from the Ohasama study.
Purpose of the Study:
- To evaluate the prognostic value of home blood pressure measurements in predicting stroke.
- To compare the predictive accuracy of HBPM versus conventional blood pressure measurements for stroke risk.
Main Methods:
- Analysis of a population-based prospective cohort study (Ohasama study).
- Comparison of stroke prediction using HBPM data versus conventional blood pressure readings.
- Assessment of the impact of the number of HBPM measurements on predictive power.
Main Results:
- Home blood pressure measurements provide more reliable prognostic information for stroke than conventional measurements.
- The predictive value for stroke risk increases with a higher number of home blood pressure measurements.
- Even single initial home blood pressure readings were more predictive of stroke risk than average conventional readings.
Conclusions:
- Home blood pressure monitoring is a valuable tool for predicting future stroke risk.
- HBPM enhances the predictive accuracy of clinical guidelines for cardiovascular risk stratification.
- Regular home blood pressure monitoring can improve stroke risk assessment and management.
Abstract:
Home blood pressure measurements more accurately and reliably reflect target organ damage and the prognosis of cardiovascular disease than conventional blood pressure measurements. All evidence of the value of home blood pressure measurement in predicting stroke is currently derived from a population-based prospective study in Japan (the Ohasama study). The authors demonstrated that home blood pressure measurement provides more useful prognostic information on stroke than conventional blood pressure measurements. The predictive value of home blood pressure measurement increased progressively with the number of measurements. Even the initial-first home blood pressure values (one measurement) showed a significantly greater relation with stroke risk than conventional blood pressure values (mean of two measurements). Home blood pressure measurement increased the predictive power of categorizations of guidelines compared with conventional blood pressure measurement. Home blood pressure measurement is a useful tool to predict future risk of stroke.
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Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.
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Physiological Factors:
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Prepare for the Procedure:
