Accuracy Assessment of an Automatic Blood Pressure Measurement Device in Adult Volunteers

The research team has developed an automatic blood pressure monitor (Sphygmo) to be used for
the monitoring and diagnosis of pre-eclampsia in pregnant women, particularly in low-resource
settings where current monitoring is limited.

90 adult volunteers will be enrolled by researchers at Rice University. The participant will
be seated in a comfortable chair with arm at heart level. Arm circumference will be measured
and a blood pressure cuff will be placed on the arm. The cuff will be inflated and blood
pressure measurements will be taken by a commercially available device and by the Sphygmo
device. Blood pressure measurements from both devices will be recorded. The participant's
blood pressure will be measured up to 9 times with a waiting period of 45-60 seconds between
each measurement.

The results of this study will be used to optimize the blood pressure detection algorithm and
thus further develop the device.