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Related Concept Videos

Measurement of Blood Pressure01:17

Measurement of Blood Pressure

3.9K
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...
3.9K
Equipments Used To Measure Blood Pressure01:30

Equipments Used To Measure Blood Pressure

3.9K
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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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...
1.9K
Assessment of blood pressure in brachial artery(one-step method)01:15

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

1.4K
This procedural guide systematically measures blood pressure using an oscillometric digital sphygmomanometer, emphasizing accuracy, patient safety, and comfort.
Prepare for the Procedure:
1.4K
Pulse rhythm01:30

Pulse rhythm

1.6K
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
1.6K
Sites for measuring blood pressure01:21

Sites for measuring blood pressure

4.1K
Blood pressure measurement is a fundamental clinical procedure, providing crucial data for assessing cardiovascular health. Among the various sites for this measurement, the brachial and popliteal arteries are predominantly utilized due to their accessibility and the reliability of their readings. This lesson delves into the anatomical significance, methodology, and considerations of measuring blood pressure at these locations.
The Brachial Artery: Primary Site for Blood Pressure Measurement
4.1K

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Related Experiment Video

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Pulse Wave Velocity Testing in the Baltimore Longitudinal Study of Aging
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Smartphone-based Continuous Blood Pressure Measurement Using Pulse Transit Time.

Hamid Gholamhosseini1, Andries Meintjes1, Mirza Baig1

  • 1School of Engineering, Computer and Mathematical Sciences, Auckland University of Technology, New Zealand.

Studies in Health Technology and Informatics
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This study developed a mobile app using photoplethysmogram (PPG) and electrocardiogram (ECG) signals to estimate systolic blood pressure non-invasively. While synchronization challenges exist, it shows promise for continuous blood pressure monitoring.

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Area of Science:

  • Biomedical Engineering
  • Cardiovascular Health Technology
  • Digital Health

Background:

  • Traditional blood pressure measurement devices using cuffs can cause discomfort and affect readings.
  • Continuous, cuffless blood pressure monitoring is highly desirable for long-term cardiovascular health assessment.
  • Advancements in personalized medical devices enable novel health monitoring approaches.

Purpose of the Study:

  • To develop and validate a mobile application for cuffless, continuous systolic blood pressure estimation.
  • To explore the feasibility of using photoplethysmogram (PPG) and electrocardiogram (ECG) signals for blood pressure monitoring.
  • To address limitations of current non-invasive blood pressure measurement techniques.

Main Methods:

  • Developed a mobile application to integrate PPG data from a pulse oximeter and ECG data.
  • Utilized Bluetooth connectivity to link PPG and ECG monitoring devices and an online server.
  • Calculated Pulse Transit Time (PTT) from synchronized PPG and ECG waveforms to estimate systolic blood pressure.
  • Implemented real-time PTT estimation and post-calibration systolic blood pressure calculation.

Main Results:

  • The application successfully collates PPG and ECG data via Bluetooth and stores it online.
  • Pulse Transit Time was estimated in real-time, enabling indirect systolic blood pressure calculation post-calibration.
  • Synchronization between PPG and ECG devices presented a notable challenge for continuous monitoring.
  • The system demonstrated proof-of-concept for continuous blood pressure monitoring.

Conclusions:

  • The developed system serves as a viable proof-of-concept for continuous, cuffless blood pressure monitoring.
  • Further development is warranted due to the significant benefits of an accurate and robust system.
  • This approach offers a promising alternative to traditional cuff-based blood pressure measurements.