June 1, 2002Journal of Hypertension
Inter-arm differences in blood pressure: when are they clinically significant?
Why the study?
Does simultaneous bilateral blood pressure measurement reveal clinically significant inter-arm differences in a general hospital population?
Population
400 participants (staff and patients) at a general hospital, mean age 56.3 +/- 19.7 years, 50% male.
Comparison
Simultaneous bilateral blood pressure… vs Comparison between right and left arm…
Design
Cohort
Authors
Discussion
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Member takes
Implication
May support initial bilateral BP measurement in hospitalized patients; leaves open whether it reduces hypertension misdiagnosis.
Structured PICO
Does simultaneous bilateral blood pressure measurement reveal clinically significant inter-arm differences in a general hospital population?
P
Population
400 participants (staff and patients) at a general hospital, mean age 56.3 +/- 19.7 years, 50% male.
I
Intervention
Simultaneous bilateral blood pressure measurements using Omron HEM-705CP automated oscillatory devices (two measurements taken in each arm).
C
Comparator
Comparison between right and left arm measurements.
O
Outcome
Mean inter-arm blood pressure differences and frequency of clinically important disparities.surrogate
Clinically significant inter-arm blood pressure differences (>10 mmHg) are common, emphasizing the need to measure blood pressure in both arms initially to prevent misdiagnosis of hypertension.
Cite This Study
Lane et al. (2002) studied this question.