Author + information
- Anand Prasad,
- Nelson Gonzalez,
- Malaz Mohamad,
- Marlene Garcia,
- Gordon Watt,
- Kristina Vatcheva,
- Susan Laing,
- Joseph McCormick and
- Susan Fisher-Hoch
Background: The prevalence of lower extremity peripheral arterial disease (PAD) in Mexican Americans (MA) is poorly characterized. The purpose of this study was to determine the presence of subclinical PAD in a sample of MA adults.
Methods: The Cameron County Hispanic Cohort is a prospective population based study of cardio-metabolic risk in MAs in South Texas. Subjects were recruited from the community and underwent measurement of ankle and toe brachial indices (ABI, TBI) using a Doppler system. Systolic pressures were calculated as the higher and lower of the two pedal pressures for a given limb respectively for ABI-High and ABI-Low, and divided by the higher of the two brachial pressures. ABI-High was used as a traditional marker of obstructive PAD, while ABI-Low was used a more sensitive marker of subclinical disease. TBI was determined by photoplethysmography.
Results: 268 subjects were recruited, 174 were females. 34.6% of the subset in this study had diabetes. Mean BMI was 30.8 ± 0.57 kg/m2. The rate of chronic kidney disease (eGFR< 60 ml/min) was 2.64%. 32.8% of individuals were former or current smokers. The % of the sample with abnormal ABI and TBI data are summarized in the Table.
Conclusions: This is the largest study of subclinical PAD in a population of MAs. The presence of subclinical PAD by a traditional definition of an abnormal ABI was 3.7%, rising to 12.3% when using a more sensitive definition. The data suggest a high prevalence of poorly compressible pedal vessels and poor distal foot perfusion.
Poster Hall, Hall C
Friday, March 17, 2017, 10:00 a.m.-10:45 a.m.
Session Title: Vascular Medicine: New Insights Into Aortic and Peripheral Artery Diseases
Abstract Category: 40. Vascular Medicine: Non Coronary Arterial Disease
Presentation Number: 1128-360
- 2017 American College of Cardiology Foundation