Related Experiment Video

Updated: Jun 4, 2026

A Detailed Protocol for Physiological Parameters Acquisition and Analysis in Neurosurgical Critical Patients
05:01

A Detailed Protocol for Physiological Parameters Acquisition and Analysis in Neurosurgical Critical Patients

Published on: October 17, 2017

Blood pressure control in acute cerebrovascular disease

William B Owens1

  • 1Division of Pulmonary and Critical Care Medicine, University of South Carolina School of Medicine, 8 Medical Park Road, Columbia, SC 29203, USA. wowens@uscmed.sc.edu

Journal of Clinical Hypertension (Greenwich, Conn.)
|March 4, 2011
PubMed

Insights

Managing acute hypertension in cerebrovascular emergencies is critical. Specific blood pressure targets differ for ischemic stroke, intracerebral hemorrhage, and subarachnoid hemorrhage to optimize outcomes and prevent complications.

Area of Science:

  • Neurology
  • Emergency Medicine
  • Cardiology

Background:

  • Acute cerebrovascular diseases impact 780,000 Americans annually.
  • Effective management requires understanding cerebral autoregulation and perfusion.
  • Familiarity with pharmacologic agents for cerebrovascular emergencies is essential.

Purpose of the Study:

  • To outline treatment guidelines for acute hypertension in cerebrovascular emergencies.
  • To differentiate management strategies based on stroke type (ischemic, intracerebral hemorrhage, subarachnoid hemorrhage).
  • To recommend appropriate pharmacologic agents and highlight contraindications.

Main Methods:

  • Review of current clinical guidelines and evidence for hypertension management in acute stroke.
  • Analysis of the impact of blood pressure targets on cerebral perfusion and hematoma expansion.
  • Evaluation of pharmacologic agents based on their effects on cerebral autoregulation and intracranial pressure.

Main Results:

  • Ischemic stroke: Treat hypertension only if systolic BP > 220 mm Hg or diastolic BP > 120 mm Hg.
  • Intracerebral hemorrhage: More aggressive treatment to minimize hematoma expansion within 3-6 hours.
  • Subarachnoid hemorrhage: Maintain systolic BP < 150 mm Hg to prevent aneurysm re-rupture.

Conclusions:

  • Specific blood pressure thresholds and treatment strategies are crucial for different acute cerebrovascular diseases.
  • Nicardipine and labetalol are recommended for rapid hypertension control.
  • Sodium nitroprusside is contraindicated due to adverse effects on cerebral autoregulation and intracranial pressure; avoid brain hypoperfusion.

More Related Videos

Evaluation of Cerebral Blood Flow Autoregulation in the Rat Using Laser Doppler Flowmetry07:12

Evaluation of Cerebral Blood Flow Autoregulation in the Rat Using Laser Doppler Flowmetry

Published on: January 19, 2020

Real-Time Monitoring and Modulation of Blood Pressure in a Rabbit Model of Ischemic Stroke09:00

Real-Time Monitoring and Modulation of Blood Pressure in a Rabbit Model of Ischemic Stroke

Published on: February 10, 2023

Related Concept Videos

Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
Blood Pressure01:30

Blood Pressure

Blood pressure (BP) is the pressure or force of blood exerted on the artery's walls as it circulates through the body. It is essential for maintaining blood flow throughout the body.
The average BP in an adult is typically around 120/80 mmHg (millimeters of mercury). In this measurement, the numerator (120) indicates the systolic pressure, which is the pressure in the arteries during the contraction of the heart's ventricles as blood is expelled. The denominator (80) represents the diastolic...
Blood Pressure01:24

Blood Pressure

The movement of blood in a human body, commonly referred to as blood flow, is determined by the volume of blood that traverses a certain section of the bodily system per unit time. It is the rhythmic contraction of the heart's ventricles that primarily instigates this movement. As the ventricles contract, blood is forced into the prominent arteries, which then flow from areas of greater pressure to lower pressure areas. This movement continues into smaller arteries and arterioles and...
Neural Regulation of Blood Pressure01:18

Neural Regulation of Blood Pressure

The neural regulation of blood pressure involves intricate interactions between the autonomic nervous system (ANS) and cardiovascular system, ensuring adequate perfusion of tissues. This regulation primarily occurs through baroreceptor and chemoreceptor reflexes, involving both short-term and long-term mechanisms.
Baroreceptor Reflex
Baroreceptors, located in the carotid sinuses and aortic arch, detect changes in blood pressure. When blood pressure rises, these stretch-sensitive receptors...
Cerebral Edema ll: Pathophysiology01:22

Cerebral Edema ll: Pathophysiology

Vasogenic edema is a major form of cerebral edema characterized by abnormal accumulation of fluid in the brain’s extracellular space due to disruption of the blood–brain barrier (BBB). The BBB is a specialized structure composed of endothelial cells connected by tight junctions, supported by astrocytic endfeet and a basement membrane. Under normal conditions, it tightly regulates the movement of ions, proteins, and solutes between the bloodstream and brain parenchyma. When this barrier loses...
Disorders of the Autonomic Nervous System01:18

Disorders of the Autonomic Nervous System

The autonomic nervous system (ANS) is an intricate network of nerves that controls functions such as the regulation of heart rate, digestion, and blood pressure regulation. When this system malfunctions, it can lead to various disorders that affect multiple bodily functions. One common feature of many autonomic disorders is the involvement of smooth blood vessels, which play a crucial role in regulating blood flow throughout the body.
Raynaud's disease, also known as Raynaud's phenomenon, is a...