Related Experiment Video
Updated: Jul 13, 2026
Improved Home Blood Pressure Control by CT-guided Ozone-mediated Renal Denervation for Patients with Resistant Hypertension
Published on: June 6, 2025
Blood pressure lowering only or more? Has the jury reached its verdict?
1Division of Cardiovascular Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA. sjulius@med.umich.edu
Insights
New antihypertensive drugs need to address underlying cardiovascular disease causes, not just lower blood pressure. Studies in mild hypertension are crucial to reveal these vital non-blood pressure effects.
Area of Science:
- Cardiovascular Medicine
- Pharmacology
- Hypertension Research
Background:
- Existing antihypertensive agents primarily focus on blood pressure reduction.
- Published outcome studies often involve high-risk hypertension patients, potentially obscuring non-blood pressure effects.
- Renin-angiotensin-aldosterone system blockade has shown benefits beyond blood pressure lowering, including reduced stroke, atrial fibrillation, and diabetes mellitus risk.
Purpose of the Study:
- To highlight the need for antihypertensive agents that target underlying pathophysiologic conditions contributing to cardiovascular disease.
- To emphasize the limitations of current hypertension guidelines based on high-risk patient data for treating stage 1 hypertension.
- To advocate for clinical trials in mild hypertension to investigate blood pressure-independent effects of antihypertensive drugs.
Main Methods:
- Review of published outcome studies in hypertension.
- Analysis of the pathophysiology of stage 1 versus complicated hypertension.
- Consideration of long-term treatment effects in patients with mild hypertension.
Main Results:
- Potent blood pressure lowering in high-risk patients can mask differential non-blood pressure effects of antihypertensive drugs.
- Current guidelines for stage 1 hypertension may not be appropriate due to extrapolation from high-risk patient data.
- Secondary effects of antihypertensive drugs on blood pressure-independent cardiovascular risk factors are significant, especially in long-term treatment.
Conclusions:
- Antihypertensive agents should be evaluated for their ability to treat underlying pathophysiologic conditions, not solely for blood pressure reduction.
- Clinical trials specifically in mild hypertension are essential to understand the full spectrum of antihypertensive drug effects.
- Future research should focus on identifying agents with beneficial non-blood pressure effects for long-term cardiovascular risk management.
Abstract:
There is a great need for antihypertensive agents that go beyond blood pressure lowering to treat the underlying pathophysiologic conditions that contribute to cardiovascular disease. However, the results of published outcome studies have been variable because they have investigated patients with complicated, high-risk hypertension. Although this ensures a sufficient number of cardiovascular events to demonstrate drug-drug differences, the potent effects of blood pressure lowering in high-risk patients obscures differential non-blood pressure effects. Despite these limitations, reductions in the risk of stroke, atrial fibrillation, and diabetes mellitus have been demonstrated with renin-angiotensin-aldosterone system blockade. Guidelines currently recommend thiazide diuretics in stage 1 hypertension, but this is based on data from high-risk patients, and extrapolation to stage 1 disease may not be appropriate. Both blood pressure and cardiovascular risk increase exponentially from early in a patient's life, leading to clinically relevant differences in the pathophysiology of stage 1 versus complicated hypertension. Importantly, patients with stage 1 hypertension typically require 30-40 years of treatment. Thus, secondary effects of antihypertensive drugs on various blood pressure-independent cardiovascular risk factors are likely to become manifest. Clinical trials in mild forms of hypertension are essential to investigate the non-blood pressure effects of antihypertensive agents.
Related Concept Videos
01:30Alterations in Blood Pressure
Hypertension (High blood pressure)
Hypertension occurs when blood pressure readings consistently exceed the normal range. It is diagnosed when systolic blood pressure (the top number, indicating pressure while the heart beats)...
01:28Special considerations while measuring blood pressure
Monitoring Both Arms:
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.
01:18Hypertension and Regulation of Blood Pressure
01:17Measurement of Blood Pressure
01:28Factors affecting Blood pressure
Physiological Factors:
01:30Blood Pressure
The average BP in an adult is typically around 120/80 mmHg (millimeters of mercury). In this measurement, the numerator (120) indicates the systolic pressure, which is the pressure in the arteries during the contraction of the heart's ventricles as blood is expelled. The denominator (80) represents the diastolic...