Approaches for the Management of Resistant Hypertension in 2020.

PURPOSE OF REVIEW: Resistant hypertension is diagnosed if the blood pressure (BP) is not controlled despite optimum doses of 3 first-line classes of antihypertensive drugs including a thiazide diuretic or if adequate BP control needs 4 or more antihypertensive drugs from different classes. RECENT
FINDINGS: Pseudohypertension and white coat hypertension must be excluded. Poor patient compliance, inadequate doses of antihypertensive drugs, poor office BP measurement technique, and having to pay for costs of drugs are factors associated with pseudoresistant hypertension. Secondary hypertension must be excluded and treated. Therapy of resistant hypertension includes improving compliance with use of medication, detection, and treatment of secondary hypertension, use of lifestyle measures, and treatment of obesity and other comorbidities. Switching the patient from hydrochlorothiazide to a longer acting thiazide-type diuretic such as chlorthalidone may improve BP control. The beneficial effects of thiazide diuretics are reduced when the glomerular filtration rate is reduced to less than 40 mL/min/1.73 m2. These patients should be treated with a loop diuretic such as furosemide every 12 h. If a fourth antihypertensive drug is needed to control blood pressure in persons treated with adequate doses of antihypertensive drugs from different classes including a thiazide-type diuretic, a mineralocorticoid receptor antagonist should be added to the therapeutic regimen. Further research is needed on investigational drugs and device therapy for treating resistant hypertension. Clinical trials are indicated for the treatment of resistant hypertension by sacubitril/valsartan and also by firibastat.