Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Blood Pressure

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...

Blood Pressure Imbalances and Circulatory Shock

Blood Pressure Imbalances and Circulatory Shock

Disorders affecting blood volume, vascular tone, or vascular function can disrupt vascular homeostasis, including conditions like hypertension, hemorrhage, and shock.
Blood Pressure: Hypertension and Hypotension
Normal blood pressure is 120/80 mm Hg. Elevated blood pressure is 120-129/under 80 mm Hg. Hypertension, warranting treatment at 130/80 mm Hg, is often asymptomatic and can lead to severe cardiovascular events, aneurysms, peripheral arterial disease, chronic renal disease, or cardiac...

Hypertension and Regulation of Blood Pressure

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...

Measurement of Blood Pressure

Measurement of Blood Pressure

Assessing blood pressure is a standard procedure executed in virtually all medical environments. The method utilized today was established over a hundred years ago by an innovative Russian doctor, Dr. Nikolai Korotkoff. The soft ticking noise, known as Korotkoff sounds, heard while taking blood pressure readings results from turbulent blood flow within the vessels. The apparatus required for this procedure includes a sphygmomanometer, a blood pressure cuff attached to a gauge, and a...

Special considerations while measuring blood pressure

Special considerations while measuring blood pressure

When assessing blood pressure (BP), healthcare professionals must consider various factors and potential unexpected outcomes to ensure accurate readings and provide proper patient care. Adhering to these guidelines is essential to achieving the most reliable results.
Monitoring Both Arms:
Monitoring BP in both arms during the initial assessment is advisable, as the systolic value may differ by five to ten mm Hg between arms. For subsequent BP assessments, use the arm with the higher reading.

Neural Regulation of Blood Pressure

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Volume-Staged Stereotactic Radiosurgery in Pediatric Patients With Large Brain Arteriovenous Malformations: An International, Multicenter Study.

Neurosurgery·2026

Same author

Efficacy and safety profile of volume-staged stereotactic radiosurgery for ruptured, large pediatric arteriovenous malformations: a multicenter cohort analysis.

Journal of neurosurgery. Pediatrics·2026

Same author

Subdural and epidural hematoma following lumbar puncture in patients on anticoagulants or antiplatelets: A retrospective propensity score-matched registry study.

Acta neurologica Belgica·2026

Same author

Microsurgical Treatment of Ethmoidal Dural Arteriovenous Fistula.

World neurosurgery·2026

Same author

The Impact of Preoperative Nicotine Use in the Development of Opioid Use Disorder Following Lumbar Disc Discectomy Procedures: A National Database Study.

Cureus·2025

Same author

Outcome Evaluation of Volume-Staged Stereotactic Radiosurgery for Cerebral Arteriovenous Malformations.

Neurosurgery·2025

Search research articles

Related Experiment Video

Updated: Aug 19, 2025

A Murine Model of Subarachnoid Hemorrhage

A Murine Model of Subarachnoid Hemorrhage

Published on: November 21, 2013

Blood Pressure Control in Traumatic Subdural Hematomas.

David R Hallan¹

¹Neurosurgery, Penn State Health Milton S. Hershey Medical Center, Hershey, USA.

|November 28, 2022

Summary

Maintaining systolic blood pressure (SBP) between 100-150mmHg or below 180mmHg in patients with acute traumatic subdural hematoma (SDH) showed no significant difference in 30-day mortality or secondary outcomes. This finding aids in managing SBP goals for traumatic brain injury patients.

Keywords:

blood pressure map mortality outcomes sbp sdh subdural hematoma systolic blood pressure tbi traumatic brain injury

More Related Videos

A Bedside, Single Burr Hole Approach to Multimodality Monitoring in Severe Brain Injury

A Bedside, Single Burr Hole Approach to Multimodality Monitoring in Severe Brain Injury

Published on: March 26, 2019

Intracranial Pressure Monitoring In Nontraumatic Intraventricular Hemorrhage Rodent Model

Intracranial Pressure Monitoring In Nontraumatic Intraventricular Hemorrhage Rodent Model

Published on: February 8, 2022

Related Experiment Videos

Last Updated: Aug 19, 2025

A Murine Model of Subarachnoid Hemorrhage

A Murine Model of Subarachnoid Hemorrhage

Published on: November 21, 2013

A Bedside, Single Burr Hole Approach to Multimodality Monitoring in Severe Brain Injury

A Bedside, Single Burr Hole Approach to Multimodality Monitoring in Severe Brain Injury

Published on: March 26, 2019

Intracranial Pressure Monitoring In Nontraumatic Intraventricular Hemorrhage Rodent Model

Intracranial Pressure Monitoring In Nontraumatic Intraventricular Hemorrhage Rodent Model

Published on: February 8, 2022

Area of Science:

Neurosurgery
Trauma Surgery
Critical Care Medicine

Background:

Optimal systolic blood pressure (SBP) management post-traumatic subdural hematoma (SDH) is debated.
Higher SBP may improve cerebral perfusion but risks hematoma expansion.
Prior research indicates SBP <90mmHg is linked to worse outcomes.

Purpose of the Study:

To compare mortality and secondary outcomes between two SBP management strategies in acute traumatic SDH patients.
To evaluate the impact of maintaining SBP 100-150mmHg versus SBP <180mmHg.

Main Methods:

Retrospective analysis of a de-identified large healthcare database (TriNetX Research Network).
Inclusion of patients with acute traumatic SDH and recorded GCS.
Propensity-score matching was used to compare cohorts with SBP 100-150mmHg vs. SBP <180mmHg within 24 hours.

Main Results:

After matching, 1,243 patients were in each cohort.
No statistically significant difference in 30-day mortality (19.76% vs. 16.99%, p=0.0767).
No significant differences observed in secondary outcomes including gastrostomy tube placement, craniotomy, VTE, stroke, MI, seizure, falls, or AKI.

Conclusions:

Targeting SBP 100-150mmHg or <180mmHg does not significantly alter 30-day mortality in acute traumatic SDH.
Neither SBP strategy showed a significant difference in key secondary outcomes.
Findings suggest current SBP guidelines may need re-evaluation for this patient population.