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Related Concept Videos

Assessment of blood pressure in brachial artery(two-step method)01:23

Assessment of blood pressure in brachial artery(two-step method)

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Measuring blood pressure is a fundamental skill in healthcare that aids in diagnosing and monitoring hypertension and other cardiovascular conditions. An aneroid sphygmomanometer, commonly used in clinical settings, offers a manual and precise method for blood pressure measurement. The technique for using this instrument involves specific steps that must be carefully executed to ensure accuracy. The following detailed description outlines a two-step technique for assessing blood pressure using...
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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.
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Pre-Procedural Guidelines for Assessing Blood Pressure01:10

Pre-Procedural Guidelines for Assessing Blood Pressure

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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...
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Measurement of Blood Pressure01:17

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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...
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Assessment of blood pressure in brachial artery(one-step method)01:15

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This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
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Equipments Used To Measure Blood Pressure01:30

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Direct Method
This invasive approach involves cannulating a peripheral artery. During each cardiac contraction, pressure generates mechanical motion within the catheter, transmitted through rigid, fluid-filled tubing to a transducer. This transducer converts mechanical motion into electrical signals displayed as waveforms on a monitor. An automatic flushing system prevents blood backflow. Due to the potential risk of unexpected arterial blood loss, this method is primarily used in intensive...
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Related Experiment Video

Updated: Dec 24, 2025

Software for Analysis of Heart Rate and Blood Pressure Time-series Data from the Valsalva Maneuver
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Software for Analysis of Heart Rate and Blood Pressure Time-series Data from the Valsalva Maneuver

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Automatic detection algorithm for establishing standard to identify "surge blood pressure".

Ayako Kokubo1,2, Mitsuo Kuwabara1,2, Hiroshi Nakajima3

  • 1Development center, Technology Development HQ, Omron Healthcare Co., Ltd, 53 Kunotsubo, Terado-cho, Muko, Kyoto, 617-0002, Japan.

Medical & Biological Engineering & Computing
|April 14, 2020
PubMed
Summary

We developed an algorithm to automatically detect surge blood pressure (BP), a short-term BP increase linked to cardiovascular events. This tool saves clinicians time analyzing continuous beat-by-beat BP data, aiding in cardiovascular disease research.

Keywords:
Blood pressure monitorsClinical informaticsExpert systemsLearning from labeled dataMedical informatics applications

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Area of Science:

  • Cardiology
  • Biomedical Engineering
  • Data Science

Background:

  • Blood pressure (BP) variability is a significant risk factor for cardiovascular disease (CVD).
  • Surge BP, defined as a pathological, short-term exaggerated increase in BP, can trigger cardiovascular events.
  • Accurate and efficient detection of surge BP is crucial for understanding and managing CVD risk.

Purpose of the Study:

  • To develop and validate an algorithm for the automatic detection of surge BP from continuous beat-by-beat (BbB) BP measurements.
  • To enable clinicians to save significant time in identifying surge BP events within large datasets.
  • To facilitate a better understanding of surge BP's role in the onset of cardiovascular disease.

Main Methods:

  • Development of a supervised learning classification model to identify surge BP patterns.
  • Utilized continuous beat-by-beat BP measurements from 94 subjects (3272 surges identified).
  • Evaluation of the algorithm using 5-fold cross-validation against expert-labeled surge BP events.

Main Results:

  • The algorithm achieved a recall of 0.90 and a precision of 0.64 in detecting surge BP.
  • Average processing time per subject was 11.0 ± 4.7 seconds, demonstrating high efficiency.
  • The algorithm successfully identified surge BPs, with recall exceeding 0.9 in validation.

Conclusions:

  • The developed algorithm provides an accurate and time-efficient method for automatic surge BP detection.
  • This tool is adequate for clinical practice and aids in the study of cardiovascular disease.
  • The algorithm significantly reduces the time needed to analyze continuous BP data for surge events.