Ankle brachial index: Difference between revisions

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imported>Robert Badgett
imported>Robert Badgett
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|Carmo, 2009<ref name="pmid19022870"/><br/>[[Cross-sectional study]]||81 consecutive patients referred for arterograms of any region. <br/>&bull;&nbsp;17% had [[peripheral arterial disease]]||ABI by [[auscultation]]||[[Doppler ultrasonography|Doppler]] ABI < 0.9|| 71%|| 91%
|Carmo, 2009<ref name="pmid19022870"/><br/>[[Cross-sectional study]]||81 consecutive patients referred for arterograms of any region. <br/>&bull;&nbsp;17% had [[peripheral arterial disease]]||ABI by [[auscultation]]||[[Doppler ultrasonography|Doppler]] ABI < 0.9|| 71%|| 91%
|-
|-
|Migliacci, 2008<ref name="pmid18567610/"<br/>[[Cross-sectional study]||205 patients from 24 [[primary care physician]]s. Subjects has at least one major cardiovascular risk factor.<br/>&bull;&nbsp;4% had [[peripheral arterial disease]] || ABI by [[palpation]]|| [[Doppler ultrasonography|Doppler]] ABI < 0.9|| 88%|| 82%
|Migliacci, 2008<ref name="pmid18567610"/><br/>[[Cross-sectional study]]||205 patients from 24 [[primary care physician]]s. Subjects has at least one major cardiovascular risk factor.<br/>&bull;&nbsp;4% had [[peripheral arterial disease]] || ABI by [[palpation]]|| [[Doppler ultrasonography|Doppler]] ABI < 0.9|| 88%|| 82%
|-
|-
| Khan, 2006<ref name="pmid16449619"/><br/>[[Systematic review]]||&nbsp;|| ABI by [[Doppler ultrasonography]] || [[Angiography]]|| 95%|| > 95%
| Khan, 2006<ref name="pmid16449619"/><br/>[[Systematic review]]||&nbsp;|| ABI by [[Doppler ultrasonography]] || [[Angiography]]|| 95%|| > 95%

Revision as of 13:21, 15 February 2009

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In medicine and the physical examination, the ankle brachial index is the "comparison of the blood pressure between the brachial artery and the posterior tibial artery. it is a predictor of peripheral arterial disease."[1]

Method

The blood pressure at the posterior tibial artery can be measured by Doppler ultrasonography[2], palpation[3], or auscultation.[4]

Role in health care

Diagnosis of peripheral arterial disease

Accuracy of the ankle brachial index (ABI) using various methods
Study Patients Test Outcome Results
Sensitivity Specificity
Carmo, 2009[4]
Cross-sectional study
81 consecutive patients referred for arterograms of any region.
• 17% had peripheral arterial disease
ABI by auscultation Doppler ABI < 0.9 71% 91%
Migliacci, 2008[3]
Cross-sectional study
205 patients from 24 primary care physicians. Subjects has at least one major cardiovascular risk factor.
• 4% had peripheral arterial disease
ABI by palpation Doppler ABI < 0.9 88% 82%
Khan, 2006[2]
Systematic review
  ABI by Doppler ultrasonography Angiography 95% > 95%

Prediction vascular disease and mortality

A meta-analysis concluded that "measurement of the ABI may improve the accuracy of cardiovascular risk prediction beyond the FRS (Framingham risk score)".[5]

References