Key result
Measuring blood pressure without adhering to AHA protocols resulted in significantly higher mean systolic and diastolic readings compared to protocol-adherent measurements across devices (p≤0.01).
Why the study?
Does the choice of blood pressure measurement device and adherence to AHA protocol affect blood pressure readings and hypertension categorization?
Cohort (n=39)
Does the choice of blood pressure measurement device and adherence to AHA protocol affect blood pressure readings and hypertension categorization?
p-value: p=≤0.01
Failure to adhere to standardized AHA blood pressure measurement protocols and variations in equipment can lead to significantly higher blood pressure readings and potential misclassification of hypertension stage.
High blood pressure, screened with a patient’s blood pressure (BP), is found in 1 out of 3 adults in the United States. A cohort of 39 participants had BP measured following the American Heart Association (AHA) protocol, utilizing three different measurement devices: manual sphygmomanometer (MA), automated Midmark IQ vitals (IQ), and an automated Omron home unit (OM). All subjects had BP measured with the IQ device while not adhering to the AHA protocol. Two protocols were denoted PR (protocol following AHA guidelines) or TY (lacking protocol). Results demonstrated a mean systolic BP with IQ-TY > OM-PR > IQ-PR > MA-PR, all (p≤0.01). The mean diastolic BP for IQ-TY > IQ-PR, OM-PR, and MA-PR, with IQ-TY significantly higher than the other 3 (p≤0.01). Comparing participants categorized in each hypertension stage, IQ-TY categorized 7participants as stage 1 hypertensive while OM-PR categorized 3, and both MA-PR and IQ-PR only categorized 1. Study results suggest a potential for possible misclassification of patients based on BP protocol.
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Mickley et al. (2018) conducted a cohort in High blood pressure (n=39). Non-adherence to AHA blood pressure measurement protocol (TY) and automated devices vs. AHA protocol adherence (PR) and manual sphygmomanometer was evaluated on Mean systolic and diastolic blood pressure (p=≤0.01). Measuring blood pressure without adhering to AHA protocols resulted in significantly higher mean systolic and diastolic readings compared to protocol-adherent measurements across devices (p≤0.01).
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