The 2020 “WHO Technical Specifications for Automated Non-Invasive Blood Pressure Measuring Devices With Cuff”

Abstract

High systolic blood pressure (BP) is the single leading modifiable risk factor for death worldwide. Accurate BP measurement is the cornerstone for screening, diagnosis, and management of hypertension. Inaccurate BP measurement is a leading patient safety challenge. A recent World Health Organization report has outlined the technical specifications for automated noninvasive clinical BP measurement with cuff. The report is applicable to ambulatory, home, and office devices used for clinical purposes. The report recommends that for routine clinical purposes, (1) automated devices be used, (2) an upper arm cuff be used, and (3) that only automated devices that have passed accepted international accuracy standards (eg, the International Organization for Standardization 81060-2; 2018 protocol) be used. Accurate measurement also depends on standardized patient preparation and measurement technique and a quiet, comfortable setting. The World Health Organization report provides steps for governments, manufacturers, health care providers, and their organizations that need to be taken to implement the report recommendations and to ensure accurate BP measurement for clinical purposes. Although, health and scientific organizations have had similar recommendations for many years, the World Health Organization as the leading governmental health organization globally provides a potentially synergistic nongovernment government opportunity to enhance the accuracy of clinical BP assessment.

Bio-Impedance Sensor for Real-Time Artery Diameter Waveform Assessment

“…-Require high qualifications [20]. -The unacceptability of the method for 5-10% of patients with deaf tones [19].…”

“…-Low measurement errors during patient movements [19]. -Devices often do not require a power supply [20].…”

“…-Sensitive to indoor noise, to the friction of the cuff on clothes, to the location of a microphone [22]. -Require high qualifications [20].…”

“…-Correct results depend on cuff size [21]. Oscillometric -Is recommended for clinical use by WHO [20].…”

“…-Is recommended for clinical use by WHO [20]. -It is possible to take measurements under a small layer of clothing and measure pressure for patients with weak and infinite tones [19].…”