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Effect of antihypertensive treatment on office and self-measured blood pressure: the Autodil study
M J Leeman1, R L Lins, J E Sternon
1Hypertension Clinic, Erasme University Hospital, Brussels, Belgium. marc.leeman@ulb.ac.be
Insights
Antihypertensive therapy with diltiazem effectively lowered both office and home blood pressure (BP). Home BP measurements may exceed office readings in hypertensive patients, particularly at higher BP ranges.
Area of Science:
- Cardiovascular medicine
- Hypertension management
- Pharmacotherapy
Background:
- Hypertension is a major risk factor for cardiovascular disease.
- Accurate blood pressure (BP) monitoring is crucial for effective hypertension management.
- Comparing office BP with home BP measurements provides valuable insights into treatment efficacy.
Purpose of the Study:
- To prospectively evaluate the impact of antihypertensive therapy on both office and home blood pressure (BP) readings.
- To assess the effectiveness of sustained-release diltiazem in a large hypertensive population managed by general practitioners.
Main Methods:
- 760 hypertensive patients (aged 18-75) with specific BP criteria underwent home BP monitoring using an automated device.
- Office BP was recorded by general practitioners, with measurements taken before and after 8 weeks of diltiazem 300 mg daily.
- Home BP was measured twice daily for 8 days prior to and during the treatment period.
Main Results:
- Sustained-release diltiazem significantly reduced systolic and diastolic office and home BP, as well as heart rate (P < 0.01).
- Office BP readings were higher than home BP before treatment but not during treatment.
- Correlation between office and home BP improved during treatment, though discrepancies were noted across BP ranges.
Conclusions:
- Home BP monitoring can reveal higher readings than office BP, especially in hypertensive individuals with elevated BP.
- Diltiazem is effective in lowering both office and home BP in hypertensive patients.
- The study highlights the importance of considering home BP measurements in hypertension management.
Objective:
To examine prospectively the effects of antihypertensive therapy on office blood pressure (BP) and home BP, in a large-scale hypertensive population followed by their general practitioners.
Patients:
A total of 760 hypertensive patients either never treated or after a 2-week washout period, aged 18-75 years, with a diastolic office BP between 95 and 110 mm Hg and a systolic office BP below 180 mm Hg.
Methods:
Patients measured their BP at home using an automated printer-equipped oscillometric device (OMRON-HEM 705 CP) twice daily for 8 days before the visit to their general practitioner who recorded three office BP. These measurements were performed before and after 8 weeks of antihypertensive therapy with sustained-release diltiazem 300 mg once daily.
Results:
Diltiazem reduced systolic and diastolic office BP and home BP and heart rate (P < 0.01). Systolic and diastolic office BP were higher than home BP before (P < 0.01) but not during treatment. Correlation coefficients between the two methods before and during therapy were 0.6 and 0.7 for systolic BP and 0.4 and 0.6 for diastolic BP (P < 0. 01). Both methods did not agree equally throughout the range of BP: home BP was higher than office BP for high values and lower for low values.
Conclusion:
The results show that BP measured at home by patients can be higher than office BP in the highest range of BP. Journal of Human Hypertension (2000) 14, 525-529
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