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Related Concept Videos

Errors occurring during blood pressure monitoring01:25

Errors occurring during blood pressure monitoring

Blood pressure monitoring is a crucial clinical procedure in diagnosing and managing various cardiovascular conditions. Despite its significance, the accuracy of blood pressure measurements can be compromised by multiple factors, potentially leading to either falsely high or low readings. These inaccuracies are critical as they can significantly impact patient care. So, it is vital to understand these challenges deeply and adopt strategic approaches to minimize errors.
Several factors...
Special considerations while measuring blood pressure01:28

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.
Measurement of Blood Pressure01:17

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 stethoscope.
Regulation of Stroke Volume01:27

Regulation of Stroke Volume

The regulation of stroke volume, which is the amount of blood the heart pumps out during each heartbeat, is critical for maintaining a healthy circulatory system. Stroke volume is influenced by three main factors: preload, contractility, and afterload.
Preload refers to the degree of stretch on the heart before it contracts. It's analogous to the stretching of a rubber band; the more it's stretched, the more forcefully it snaps back. This concept is encapsulated in the Frank-Starling law of the...
Ischemic Stroke l: Introduction01:15

Ischemic Stroke l: Introduction

Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.
Pre-Procedural Guidelines for Assessing Blood Pressure01:10

Pre-Procedural Guidelines for Assessing Blood Pressure

Accurate blood pressure assessment is crucial for diagnosing and managing various health conditions. To ensure the reliability of these measurements, healthcare professionals must adhere to standardized pre-procedural guidelines. These guidelines enhance patient safety and improve the overall quality of healthcare. The following steps are essential for obtaining accurate and consistent blood pressure readings, from using the appropriate tools to ensuring effective communication with the patient.

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Related Experiment Video

Updated: Jul 2, 2026

Real-Time Monitoring and Modulation of Blood Pressure in a Rabbit Model of Ischemic Stroke
09:00

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

Published on: February 10, 2023

Blood Pressure Variability in Acute Ischemic Stroke: Current Evidence, Measurement Challenges, and Future Directions.

Chail Shah1, Muhammad Ayub1, Hira Pervez1

  • 1Department of Neurology, University of Texas Southwestern Medical Center, Dallas, Texas, USA.

Journal of Clinical Hypertension (Greenwich, Conn.)
|July 1, 2026
PubMed
Summary

Blood pressure variability (BPV) in acute ischemic stroke (AIS) is linked to worse outcomes but may reflect stroke severity. Its role as a direct injury cause or modifiable target needs more research.

Keywords:
acute ischemic stroke (AIS)blood pressure managementblood pressure variability (BPV)cerebral autoregulationcerebral perfusionendovascular thrombectomyhemodynamic monitoringstroke outcomes

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Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness
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Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness

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Last Updated: Jul 2, 2026

Real-Time Monitoring and Modulation of Blood Pressure in a Rabbit Model of Ischemic Stroke
09:00

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

Published on: February 10, 2023

Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness
05:51

Measuring the Carotid to Femoral Pulse Wave Velocity (Cf-PWV) to Evaluate Arterial Stiffness

Published on: May 3, 2018

Area of Science:

  • Neurology
  • Cardiology
  • Critical Care Medicine

Background:

  • Blood pressure variability (BPV) is a recognized prognostic marker in acute ischemic stroke (AIS).
  • Observational studies consistently link early systolic fluctuations to adverse outcomes like infarct progression and neurological deterioration.
  • The precise role of BPV—whether it mediates injury or reflects underlying stroke severity—remains unclear.

Purpose of the Study:

  • To review the evidence connecting BPV to outcomes in AIS.
  • To examine the methodological heterogeneity in BPV measurement.
  • To highlight limitations hindering standardized BPV monitoring and therapeutic strategies.

Main Methods:

  • Review of existing observational studies and clinical trial data on BPV in AIS.
  • Analysis of measurement techniques, monitoring frequency, and analytical approaches for BPV.
  • Examination of factors influencing BPV, including stroke severity and hemodynamic interventions.

Main Results:

  • Consistent associations exist between BPV and poorer outcomes in AIS.
  • Significant heterogeneity in measurement and analysis methods complicates clinical interpretation.
  • BPV is strongly influenced by stroke severity and treatment intensity, suggesting it may reflect disease burden.

Conclusions:

  • BPV in AIS should be primarily viewed as a prognostic marker of disease severity, not a confirmed causal mediator of injury.
  • The role of BPV as a modifiable treatment target is currently unestablished.
  • Preliminary evidence suggests individualized blood pressure strategies may improve outcomes after endovascular thrombectomy, requiring further validation.