LBPS 03-28 A STUDY ON USING PHOTOPLETHYMOGRAPHIC (PPG) SIGNAL AS A NON INVASIVE SCREENING DEVICE FOR HYPERTENSION

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Abstract

Objective:

Study on using non invasive PPG signal to screen age 40–50 years patients with hypertension

Design and Method:

32 patients with well controlled isolated hypertension (ie non diabetic, non dyslipidaemic, non ischaemic heart disease) who are on regular antihypertensive treatment and 50 healthy individuals from age 40–50 years were 2 tertiary care hospitals. They were interviewed and their blood flow recorded using PPG signal for 5 minute duration. Standard indices of wave forms were calculated during data analysis.

Results:

Out of 32 hypertensive patients, 83% were identified as true positives on calculated indices. 23% of false positives were also detected.

Conclusions:

Calculated indices of PPG signal has a sensitivity of 83% in screening of hypertension in age 40–50 years patients and it has 77% of specificity.

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