Hypertensive urgency (severe asymptomatic hypertension)
Hypertensive urgency, better termed severe asymptomatic hypertension, is markedly elevated blood pressure (usually above 180/120 mmHg) without acute target-organ damage. Unlike a hypertensive emergency it does not require rapid parenteral lowering; the correct approach is gradual oral control over days and outpatient follow-up.
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What this article covers
- Overview
Definition: hypertensive urgency, more accurately called severe asymptomatic hypertension, is markedly elevated blood pressure (usually above 180/120 mmHg) without evidence of acute target-organ damage.
- Epidemiology
A common presentation in clinics and emergency departments.
- Risk factors
Known, poorly controlled, or untreated hypertension.
- Pathophysiology
Chronic pressure elevation without acute decompensation: autoregulation remains intact, so organs are not acutely injured.
- Clinical features
Often asymptomatic, an incidental finding.
- Differential diagnosis
Hypertensive emergency: severe hypertension with acute target-organ damage, distinguished by evidence of end-organ injury such as chest pain, neurologic deficit, or acute kidney injury that is absent here (Hypertensive emergency).
- Diagnosis
Establish by confirmed severe hypertension with no evidence of acute target-organ damage: the diagnostic basis is repeated accurate measurement confirming severe elevation together with a history…
- Management
First-line, lower blood pressure gradually with oral therapy over days: restart or intensify the patient's regimen, continued long term.
- Complications
Progression to a hypertensive emergency if untreated.
- Prognosis
Good with gradual control and follow-up. Low short-term risk of acute complications with appropriate management.
- Prevention
Sustained adherence and blood pressure control to a target below 130/80 mmHg.
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Related articles
- Hypertensive emergency
Hypertensive emergency is severe hypertension (usually above 180/120 mmHg) with acute target-organ damage such as encephalopathy, stroke, acute heart failure, myocardial ischemia, aortic dissection, or acute kidney injury. It requires controlled intravenous blood pressure reduction, with the target and pace determined by the specific end-organ involved.
- Essential hypertension
Essential (primary) hypertension is chronically elevated blood pressure without an identifiable secondary cause, the overwhelming majority of hypertension. It is a leading modifiable driver of stroke, heart failure, and kidney disease, and management combines lifestyle change with staged pharmacotherapy to a target usually below 130/80 mmHg.
- Resistant hypertension
Resistant hypertension is blood pressure that remains above target despite three optimally dosed antihypertensives including a diuretic, or that requires four or more drugs. Evaluation excludes pseudoresistance and secondary causes, and treatment optimizes the regimen, emphasizes a mineralocorticoid antagonist, and addresses lifestyle and adherence.
- Secondary hypertension
Secondary hypertension is high blood pressure from an identifiable, often correctable cause, such as primary aldosteronism, renal or renovascular disease, obstructive sleep apnea, or endocrine tumors. It should be suspected with resistant, early-onset, or abrupt hypertension, and identifying the cause can cure or greatly improve control.