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The heart, kidney, and brain as target organs in hypertension
George A Mensah1, Janet B Croft, Wayne H Giles
1Cardiovascular Health Branch, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, 4770 Buford Highway NE, Mailstop K-47, Atlanta, GA 30341-3717, USA. gmensah@cdc.gov
Insights
Hypertension damages vital organs like the heart and kidneys. Early detection and treatment of target organ damage are crucial for preventing cardiovascular events and managing high blood pressure effectively.
Area of Science:
- Cardiovascular Medicine
- Nephrology
- Neurology
Background:
- Hypertension (high blood pressure) significantly damages the heart, kidneys, brain, and arterial blood vessels.
- Uncontrolled hypertension accelerates organ damage, leading to failure, cardiovascular death, and disability.
Purpose of the Study:
- To emphasize the importance of assessing target organ damage in hypertension management.
- To highlight how identifying organ damage influences treatment urgency, intensity, and drug selection.
Main Methods:
- Review of current hypertension guidelines and treatment strategies.
- Emphasis on meticulous evaluation for target organ damage in hypertensive patients.
- Discussion of the role of renin-angiotensin-aldosterone system antagonism in organ protection.
Main Results:
- All antihypertensive medications that lower blood pressure reduce complications and slow organ failure progression.
- Drugs antagonizing the renin-angiotensin-aldosterone system offer significant organ protection.
- Effective BP control is essential for preventing and managing hypertensive complications.
Conclusions:
- Assessment of target organ damage is critical for guiding hypertension treatment intensity and drug choice.
- Antihypertensive therapy, particularly renin-angiotensin-aldosterone system blockers, protects organs.
- Lifestyle modifications are essential for hypertension prevention and adjunctive therapy.
Abstract:
The heart, kidney, brain, and arterial blood vessels are prime targets of hypertensive damage. Uncontrolled hypertension accelerates the damage to these organs and results in eventual organ failure and cardiovascular death and disability. Current guidelines for the appropriate treatment and control of hypertension requires an assessment of the presence of target organ damage. When present, evidence of target organ damage determines the urgency and intensity of drug treatment and may also dictate the choice of initial antihypertensive drug class. Thus, evaluation of persons with suspected or established hypertension must include a meticulous search for evidence of target organ damage. Fortunately, treatment with all antihypertensive medications that results in significant BP reductions also reduces fatal and nonfatal hypertensive complications and significantly slows down the progression to organ failure. Because of the important role that adverse activation of the renin-angiotensin-aldosterone system plays in target organ damage, drugs that antagonize this system have provided consistent and compelling proof of organ protection in both primary and secondary prevention of adverse outcomes. The challenge now is to use these and all other antihypertensive agents effectively to control BP to target levels in patients with hypertension. Continued emphasis on the adoption of lifestyle changes for prevention of hypertension in the first place or as adjunctive therapy in hypertensive patients is essential.