Paper Title
Development of Wearable Data Acquisition Device for Blood Pressure Variability Monitoring

Abstract
Blood pressure variability depicts the dynamic and continuous variations that occur in blood pressure levels over a period of time. This variability includes a wide range of BP variations, occurring over seconds or minutes (short-term variability), or over 24 hours (long-term variability). Blood pressure variability has been observed as a predictor of cardiovascular outcome. Intravenous blood pressure monitoring is gold standard for deriving blood pressure variability, noninvasive option closer to this is beat-to-beat monitoring by Finapres. Advent of Wearable technology has gained momentum in recent times, also population has become user friendly with such devices. Exorbitant cost of Finapres, ready availability of wearable sensors and adequate correlation of beat-to-beat blood pressure with pulse arrival time and pulse transit time has led to development of the inexpensive hardware for blood pressure variability monitor. Pulse Arrival Time variability is observed to be consistent with past observations reported in literature. To take care of the noise in spectrum, Pulse Transit Time variability is being worked out. This development employing AD8232, MAX30102, TCA9548A and Arduino Uno is briefly described in this paper. Keywords - Blood Pressure Variability, Pulse Arrival Time, Differential Pulse Arrival Time, Wearable Device, Autonomic Control