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.
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Accuracy of Blood Pressure Measurement by Sphygmo Relative to the Clinical Standard.
Timeframe: Blood pressure was measured an average of 9 times for each participant during their single visit and the mean of these measurements was recorded and used for analysis. The measurement period lasted approximately 30-45 minutes.
Percentage of Sphygmo Readings That Were With < 5 mmHg, < 10 mmHg, and < 15 mmHg of the Readings by the Gold Standard Sphygmomanometer.
Timeframe: Blood pressure was measured an average of 9 times for each participant during their single visit and the mean of these measurements was recorded and used for analysis. The measurement period lasted approximately 30-45 minutes.