Related Experiment Videos
[Long-term automatic blood pressure measurement in clinical management]
U Hollenstein1, A T Tammen, V Burkhardt
1Klinik Roderbirken der LVA Rheinprovinz, Leichlingen.
Insights
Effective blood pressure control in arterial hypertension significantly reduces stroke risk. Ambulatory monitoring helps identify patients needing treatment by accurately assessing blood pressure fluctuations.
Area of Science:
- Cardiology
- Hypertension Research
- Medical Technology
Background:
- Arterial hypertension control is crucial for prognosis, with significant stroke reduction linked to diastolic blood pressure decrease.
- Challenges in hypertension management include poor patient adherence to lifelong therapy and uncertainty in diagnosis.
- Self-monitoring of blood pressure may not capture significant daily fluctuations, necessitating more advanced methods.
Purpose of the Study:
- To assess the reliability of an ambulatory blood pressure monitoring system.
- To compare blood pressure responses in hypertensive patients and normal subjects under various conditions.
- To improve the identification of individuals requiring antihypertensive treatment.
Main Methods:
- Utilized the SpaceLabs Model ICR 5200 for ambulatory blood pressure monitoring.
- Employed oscillatory measurement when Korotkoff sounds were undetectable.
- Recorded systolic, diastolic, mean arterial pressure, and heart rate for up to 200 measurements.
Main Results:
- The study aimed to evaluate the system's reliability and compare monitored blood pressure responses.
- Investigated differences between hypertensive patients and normal subjects at rest and during exertion.
- Focused on identifying individuals who would benefit most from antihypertensive interventions.
Conclusions:
- Ambulatory blood pressure monitoring offers a reliable method for assessing blood pressure variations.
- Accurate monitoring aids in differentiating between situational and persistent hypertension.
- This technology can enhance the precision of initiating antihypertensive treatment.
Abstract:
Blood pressure control in arterial hypertension, as has been shown in randomized studies in 43,000 patients, based on a reduction of diastolic blood pressure of 5.8 mm Hg associated with a 40% reduction in stroke, is of substantial prognostic importance. Cardiac events were reduced insignificantly by 9%. Major problems with treatment are the limited acceptance of a lifelong therapy--in the Munich High Blood Pressure Study from 1982 well controlled and effective treatment was found in only 22% of the men and 16% of the women--uncertainty with regard to the indication and the question of whether the observed blood pressure elevation is situational or persistent in particular, in view of one study reporting that after three years of placebo in 48% of patients entered with diastolic values between 95 and 105 mm Hg, the blood pressure was found to lie in the normal range. Blood pressure determinations by the patients themselves may reflect resting values throughout the day but blood pressure fluctuations which can be substantial, can only be detected by ambulatory monitoring. The aim of this study, in addition to assessment of the reliability of the system employed, was to compare the response of the monitored blood pressure in patients with various stages of hypertension and in normal subjects at rest and during physical exertion to identify more accurately those in need of antihypertensive treatment. For ambulatory blood pressure monitoring, the SpaceLabs Model ICR 5200 was used. If Korotkoff sounds are not detected, the unit switches to oscillatory measuring. The storage capacity accommodates 200 measurements of systolic, diastolic and mean arterial pressure, heart rate and time of measurement.(ABSTRACT TRUNCATED AT 250 WORDS)