Predictive value of the ankle-brachial index in the evaluation of intermittent claudication
Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo
;
55(2): 61-4, Mar.-Apr. 2000.
Article
in English
| LILACS
| ID: lil-265860
RESUMO
The purpose of this study was to determine whether the ankle-brachial index (ABI) could be used to predict the prognosis for a patient with intermittent claudication (IC). We studied 611 patients prospectively during 28 months of follow-up. We analyzed the predictive power of using various levels of ABI - 0.30 to 0.70 at 0.05 increments - in terms of the measure's specificity (association with a favorable outcome after exercise rehabilitation therapy) and sensitivity (association with a poor outcome after exercise rehabilitation therapy). We found that using an ABI of 0.30 as a cut-off value produced the lowest margin of error overall, but the predictive power was still low with respect to identifying the patients with a poor prognosis after non-aggressive therapeutic treatment. Further study is needed to perhaps identify a second factor that could increase the sensitivity of the test
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Brachial Artery
/
Walking
/
Intermittent Claudication
/
Ankle
Type of study:
Diagnostic study
/
Observational study
/
Prognostic study
/
Risk factors
Limits:
Humans
Language:
English
Journal:
Rev. Hosp. Clin. Fac. Med. Univ. Säo Paulo
Journal subject:
Medicine
Year:
2000
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Federal de Säo Paulo/BR
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