Key result
Heart disease significantly lowered the accuracy of systolic blood pressure estimation compared to healthy subjects, and longer calibration intervals reduced accuracy for both systolic and diastolic BP.
Why the study?
Do heart disease and calibration interval impact the accuracy of pulse transit time-based blood pressure estimation?
Observational (n=85)
Do heart disease and calibration interval impact the accuracy of pulse transit time-based blood pressure estimation?
PTT-based blood pressure estimation accuracy is significantly affected by the presence of heart disease and the length of the calibration interval, highlighting challenges for its clinical application.
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Urges caution applying BP estimation to heart disease patients; leaves open optimal calibration intervals for prospective validation.
Ding et al. (2016) conducted an observational in Heart disease (n=85). Heart disease and longer calibration intervals vs. Healthy subjects and shorter calibration intervals was evaluated on Accuracy of systolic and diastolic blood pressure estimation. Heart disease significantly lowered the accuracy of systolic blood pressure estimation compared to healthy subjects, and longer calibration intervals reduced accuracy for both systolic and diastolic BP.
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