Hypertension strategies for therapeutic intervention and prevention of end-organ damage.
The goals in the treatment of hypertension have been outlined previously. The antihypertensive drugs should achieve as many of these criteria as possible. 1. Efficacious as monotherapy in more than 50% of all patients (demographics) 2. 24-hour blood pressure control during all activities 3. Once per day dosing 4. Hemodynamically logical and effective: reduces SVR, improves arterial compliance, preserves CO and maintains perfusion to all vital organs 5. Lack of tolerance or pseudotolerance: no reflex volume retention or stimulations of neurohumoral mechanisms 6. Favorable biochemical and metabolic effects 7. Reverses the structural, vascular smooth muscle, cardiac hypertrophy, LVH, and improves systemic and diastolic compliance, LV contractility and function, and reduces ventricular ectopy if present 8. Reduces all end-organ damage: cardiac, cerebrovascular, renal, retinal and large artery 9. Maintains normal hemodynamic response to aerobic and anerobic exercise 10. Low incidence of side effects and good quality of life 11. Good compliance with drug regimen 12. Good profile in concomitant diseases or problems The drugs that come closest to these characteristics include CCB, ACEI, CAA, and alpha blockers. All of these agents are effective as monotherapy and should be given as initial therapy to the maximum dose shown in Table 10 or until the advent of side effects, whichever occurs first. Combination therapy should be the next step, using the principal of go low, go slow, using additive or synergistic drug combinations. Therapy should be individualized using the subsets of hypertension approach: Diuretics in particular, especially high-dose diuretics, and BB to a lesser extent, should be reserved as second- or third-line drugs and used for specific indications and in the lowest dose possible to achieve clinical results. For example, diuretics would be reserved for volume overload states, systolic CHF, and volume-resistant hypertension. Beta blockers would be reserved for patients after a Q-wave myocardial infarction, those with obstructive angina, specific cardiac arrhythmias, and other like conditions. Long-term, prospective, clinical trials will be needed to confirm that CCB, ACEI, CAA, and alpha blockers reduce end-organ damage more effectively than diuretics, BB, direct vasodilators, and older antihypertensive drugs. Until then, one must rely on scientific evidence, discussed here, that strongly suggests that reduction in risk factors for end-organ damage will reduce the end-organ damage in heart, brain, kidney, and large arteries.
Houston
M C
MC
Vanderbilt University Medical Center, Nashville, Tennessee.
D000959:Antihypertensive Agents / Q000008:administration & dosage / Q000494:pharmacology / Q000627:therapeutic use*; D002318:Cardiovascular Diseases / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D002985:Clinical Protocols / Q000592:standards; D002986:Clinical Trials as Topic; D006040:Goals; D006439:Hemodynamics / Q000187:drug effects; D006801:Humans; D006973:Hypertension / Q000150:complications / Q000188:drug therapy* / Q000503:physiopathology; D007674:Kidney Diseases / Q000453:epidemiology / Q000209:etiology / Q000517:prevention & control*; D012307:Risk Factors; D015996:Survival Rate
D000959:Antihypertensive Agents