What does this research mean for the field?

Indirect blood pressure measurement methods consistently underestimate systolic and overestimate diastolic blood pressure compared to direct measurement, with these discrepancies being influenced by age-related changes in arterial wall stiffness. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The study aims to evaluate the accuracy of three indirect blood pressure measurement methods compared to direct measurements.

January 1, 1997Japanese Heart JournalOpen Access

Assessment of the Accuracy of Indirect Blood Pressure Measurements.

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Why the study?

Do indirect blood pressure measurement methods accurately reflect direct intra-arterial blood pressure in hospitalized patients?

Key Points

The study aims to evaluate the accuracy of three indirect blood pressure measurement methods compared to direct measurements.
Simultaneous blood pressure measurements using auscultatory, oscillometric, and microphone methods alongside direct measurements.
Population included 34 hospitalized subjects aged 18 to 73 years, average age 47.5 years.
Analysis of correlation and differences in blood pressure readings between indirect and direct methods.
Oscillometric method underestimated systolic BP by -12.2 mmHg and overestimated diastolic BP by +4.6 mmHg.
Auscultatory method showed a greater systolic BP difference in subjects over 50 years compared to those 50 years or younger (p < 0.001).
Auscultatory method indicated higher systolic BP in individuals with increased carotid arterial wall stiffness.

Structured PICO

Do indirect blood pressure measurement methods accurately reflect direct intra-arterial blood pressure in hospitalized patients?

Population

34 hospitalized patients (29 untreated hypertensive, 5 normotensive), ranging in age from 18 to 73 years (average 47.5 years), with no manifestations of heart failure or cerebrovascular disease.

Intervention

Indirect blood pressure measurements on the right arm using auscultatory, microphone, and oscillometric methods.

Comparator

Direct intra-arterial blood pressure measurement via a catheter in the left brachial artery.

Outcome

Differences in systolic and diastolic blood pressure between indirect and direct measurement methods.surrogate

Indirect blood pressure measurements inherently underestimate systolic and overestimate diastolic blood pressure compared to direct intra-arterial measurements, with discrepancies influenced by age and arterial stiffness.

Limitations

Direct and indirect methods used pressures measured in the contralateral brachial artery.
Absence of indirect measurements obtained during exercise.

Discussion

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Implication

Indirect BP readings warrant cautious inpatient interpretation; cross-sectional data leaves open validation across broader populations.

Cite This Study

Ochiai et al. (1997) studied this question.

synapsesocial.com/papers/6a14b23a18abc81f8aa5ffaf https://doi.org/10.1536/ihj.38.393

View Full Paper

Ask AI

Bookmark

Assessment of the Accuracy of Indirect Blood Pressure Measurements.

Key Points

Structured PICO

Limitations

Discussion

Implication

Cite This Study

Assessment of the Accuracy of Indirect Blood Pressure Measurements.

Key Points

Structured PICO

Limitations

Discussion

Implication

Cite This Study

Also Consider

Also Consider