ANKLE BRACHIAL INDEX AS A PREDICTOR OF CORONARY ARTERY DISEASE COMPLEXITY

Abstract

Background: Coronary artery disease and peripheral arterial disease shares common risk factors for etiopathogenesis. Present study is designed to find out relationship between ankle brachial index (ABI) and syntax score.
Methods: Total 152 consecutive patients of stable coronary artery disease in whom angiography was indicated were taken for the study. ABI measurement was performed using a portable ultrasound doppler before coronary angiography and syntax score was calculated by using online syntax score calculator. Statistical analysis was done by SPSS V18 software.
Results: Our study has concluded that ABI has a highly significant negative correlation with syntax score (p-value 0.0001) after adjustment of other co-variants. Moreover, patients with low ABI (<0.9) has 16 times risk of having complex coronary anatomy indicated by high syntax score (>33) compared with patients with normal ABI
Conclusions: Ankle Brachial Index might be used as an independent predictor of coronary artery disease complexity.
Keywords: ABI, syntax score, peripheral arterial disease, ankle brachial index