Elevated Blood Pressure in Acute Ischemic Stroke: What Is the Treatment?

Elevated blood pressure presenting during acute ischemic stroke requires structured, time-sensitive management. The appropriate clinical response depends on the patient's eligibility for reperfusion therapy and the degree of blood pressure elevation at presentation.

Clinical Scenario

This protocol addresses patients with acute ischemic stroke who present with elevated blood pressure. Management differs based on whether the patient is eligible for IV thrombolytic therapy, undergoing endovascular treatment, or receiving neither intervention — each pathway carries specific blood pressure requirements.

Clinical Goals

Defined blood pressure thresholds must be met before reperfusion therapy is initiated and sustained throughout the acute treatment window. Patients not receiving reperfusion therapy have separate targets for the first 24 hours. Correcting hypotension and hypovolemia is also part of the overall management to maintain systemic perfusion.

Treatment Approach — Partial Overview

Management involves stratified blood pressure targets determined by the patient's reperfusion therapy eligibility, with distinct thresholds required before and maintained after acute interventions.

Full thresholds, timing parameters, and the complete algorithm are available in the structured protocol below.

References

DOI: 10.1161/CIR.0000000000001356

  • Patients who have elevated BP and are otherwise eligible for treatment with IV thrombolytics should have their BP lowered to SBP <185 mm Hg and DBP <110 mm Hg before IV thrombolytic therapy is initiated and should be maintained below 180/105 mm Hg for at least the first 24 hours after initiating thrombolytic therapy to avoid complications.
  • In patients who undergo endovascular treatment, it is reasonable to maintain the BP at <=180/105 mm Hg during and for 24 hours after the procedure to improve long-term functional outcomes and prevent death.
  • In patients with BP of >=220/120 mm Hg who did not receive IV thrombolytic or endovascular treatment and have no comorbid conditions requiring acute antihypertensive treatment, it might be reasonable to lower BP by 15% during the first 24 hours after onset of stroke to improve outcomes.
  • In patients with acute ischemic stroke, hypotension and hypovolemia should be corrected to maintain systemic perfusion levels necessary to support organ function.
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