Lecture

Arterial Blood Pressure: Measurement and Propagation

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In courses (2)

BIO-378: Physiology lab I

Le TP de physiologie introduit les approches expérimentales du domaine biomédical, avec les montages de mesure, les capteurs, le conditionnement des signaux, l'acquisition et traitement de données. Les résultats physiologiques finaux illustrent le contenu ...

BIO-379: Physiology lab II

Description

This lecture covers the measurement of arterial blood pressure without puncturing the artery, focusing on non-invasive methods like NIBP and oscillometric measurements. It explains how arterial pressure changes along the arteries, the importance of avoiding artery punctures, and the application of known pressure on an artery. The lecture also discusses the propagation of arterial pressure to external sensors, the cuff inflation process, and the challenges of pressure transmission. Key concepts include pressures coupling, systolic/diastolic pressures, semi-empirical models, visco-elastic properties, and pressure propagation.

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Instructor

André Pexieder

Teaching & PhD Courses Physiology lab I BIO-378 The physiology laboratory introduce the experimental methods in the biomedical field, including experimental set-ups, transducers, signal conditioning, data acquisition and processing.The physiological end results illustrate the contents of the Physiologie par systèmes course. Physiology lab II BIO-379 The physiology laboratory introduce the experimental methods in the biomedical field, including experimental set-ups, transducer

Official source

Ontological neighbourhood

Health sciences

Cardiology: Cardiovascular disease

Related concepts (18)

Blood pressure measurement

Arterial blood pressure is most commonly measured via a sphygmomanometer, which historically used the height of a column of mercury to reflect the circulating pressure. Blood pressure values are generally reported in millimetres of mercury (mmHg), though aneroid and electronic devices do not contain mercury. For each heartbeat, blood pressure varies between systolic and diastolic pressures. Systolic pressure is peak pressure in the arteries, which occurs near the end of the cardiac cycle when the ventricles are contracting.

Sphygmomanometer

A sphygmomanometer (ˌsfɪɡməʊməˈnɒmɪtər ), a blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure, composed of an inflatable cuff to collapse and then release the artery under the cuff in a controlled manner, and a mercury or aneroid manometer to measure the pressure. Manual sphygmomanometers are used with a stethoscope when using the auscultatory technique. A sphygmomanometer consists of an inflatable cuff, a measuring unit (the mercury manometer, or aneroid gauge), and a mechanism for inflation which may be a manually operated bulb and valve or a pump operated electrically.

Arterial line

An arterial line (also art-line or a-line) is a thin catheter inserted into an artery. Arterial lines are most commonly used in intensive care medicine and anesthesia to monitor blood pressure directly and in real-time (rather than by intermittent and indirect measurement) and to obtain samples for arterial blood gas analysis. Arterial lines are generally not used to administer medication, since many injectable drugs may lead to serious tissue damage and even require amputation of the limb if administered into an artery rather than a vein.

Automatic transmission

An automatic transmission (sometimes abbreviated AT) is a multi-speed transmission used in motor vehicles that does not require any input from the driver to change forward gears under normal driving conditions. The most common type of automatic transmission is the hydraulic automatic, which uses a planetary gearset, hydraulic controls, and a torque converter. Other types of automatic transmissions include continuously variable transmissions (CVT), automated manual transmissions (AMT), and dual-clutch transmissions (DCT).

Hypertension

Hypertension (HTN or HT), also known as high blood pressure (HBP), is a long-term medical condition in which the blood pressure in the arteries is persistently elevated. High blood pressure usually does not cause symptoms. It is, however, a major risk factor for stroke, coronary artery disease, heart failure, atrial fibrillation, peripheral arterial disease, vision loss, chronic kidney disease, and dementia. Hypertension is a major cause of premature death worldwide.

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