Key result
Indirect arterial pressure measurement differed from direct readings by a mean of 3.13 mm Hg for systolic and 6.70 mm Hg for diastolic disappearance, making systolic pressure a more accurate guide.
Why the study?
Does indirect arterial pressure measurement accurately reflect direct arterial pressure measurement in hospitalized patients?
Population
30 hospitalized patients
Comparison
Indirect arterial pressure measurement vs Direct arterial pressure measurement
Design
Cross-sectional, One observer in a 'blind' manner
Authors
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Indirect BP supports systolic over diastolic for inpatient decisions; cross-sectional data leaves open modern validation.
Observational (n=30)
Blinded observer
Does indirect arterial pressure measurement accurately reflect direct arterial pressure measurement in hospitalized patients?
Systolic pressure is measured more accurately than diastolic by indirect methods, and disappearance of Korotkov sounds is a more accurate criterion for diastolic pressure than muffling.
Breit et al. (1974) conducted an observational in Hospitalised patients (n=30). Direct arterial pressure measurement vs. Indirect arterial pressure measurement was evaluated on Mean difference between direct and indirect arterial pressure readings. Indirect arterial pressure measurement differed from direct readings by a mean of 3.13 mm Hg for systolic and 6.70 mm Hg for diastolic disappearance, making systolic pressure a more accurate guide.
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