What does oscillometric mean?

Oscillometry is the blood pressure (BP) measurement principle of most automatic cuff devices. The oscillogram (which is approximately the blood volume oscillation amplitude-external pressure function) is measured, and BP is then estimated via an empirical algorithm.

Is oscillometric method accurate?

Automatic oscillometry can be used at home by the patient and is preferred even in clinics. However, the technique’s accuracy is low and errors of 10–15 mmHg are common. Recently, we have developed an automatic technique for SBP measurement, based on an arm pressure cuff and a finger photoplethysmographic probe.

What is oscillometric sphygmomanometer?

The oscillometric method uses a sphygmomanometer cuff, like the auscultatory method, but with an electronic pressure sensor (transducer) to observe cuff pressure oscillations, electronics to automatically interpret them, and automatic inflation and deflation of the cuff.

How does Dinamap work?

DINAMAP (Device for Indirect Non-invasive Automated MAP measurement) uses a single cuff wrapped around the patient’s arm and a pneumatic pump to inflate the cuff to a level assumed to be greater than systolic pressure. The cuff is deflated gradually through a solenoid valve.

How do you take oscillometric blood pressure?

OSCILLOMETRY is a widely used approach for automatic cuff blood pressure (BP) measurement [1]–[3]. In this approach, a cuff placed on the upper arm is inflated and then deflated while the pressure inside the cuff is measured.

When an oscillometric approach is used?

What are the advantages of oscillometric blood pressure device?

The main advantages are (1) possibility of BP measurement when the Korotkoff signal is poor; (2) measurement of the mean arterial BP; and (3) no need of a microphonic sensor.

How does oscillometric method measure blood pressure?

What does the reading of blood pressure mean?

Systolic blood pressure, the top number, measures the force the heart exerts on the walls of the arteries each time it beats. Diastolic blood pressure, the bottom number, measures the force the heart exerts on the walls of the arteries in between beats.

What does oscillometric method measure?

The oscillometric method of measuring blood pressure with an automated cuff yields valid estimates of mean pressure but questionable estimates of systolic and diastolic pressures. Existing algorithms are sensitive to differences in pulse pressure and artery stiffness.

How does oscillometric blood pressure work?

Oscillometric machines usually use the maximum volume change as an indication of the average of the systolic and diastolic BP within the artery. By combining this average with the rate of change of the pressure wave, the machines then use a variety of algorithms to estimate the systolic and diastolic BP.