Abstract 91: Are At Risk Outpatient Cardiology Patients being Appropriately Evaluated for Lower Extremity PAD as Recommended by ACC/AHA Guidelines?

Author(s):  
Rajesh M Kabadi ◽  
Ankitkumar Patel ◽  
Rajani Sharma ◽  
Rita Schmidt ◽  
Elias Iliadis

Background: Lower extremity peripheral artery disease (PAD) is a common syndrome that afflicts many individuals and leads to significant morbidity. Once appropriate at risk patients are identified, ankle-brachial index (ABI) testing is a relatively quick and inexpensive test that is recommended for proper assessment of PAD, per the recommendations outlined in the American College of Cardiology (ACC)/American Heart Association (AHA) Guidelines for the Management of Peripheral Artery Disease (PAD) (JACC, 2006). Outpatient cardiology practices often take care of individuals at risk for PAD and have the opportunity to test and appropriately treat this condition. Methods: A randomly selected group of 367 outpatients seen in a large academic cardiology practice from September 2011 underwent retrospective chart review. Risk factors for PAD that were assessed include history of smoking, hypertension, diabetes, hyperlipidemia, homocysteine levels, and CRP. Those that had three or more risk factors were classified as high risk and those with less than that were classified as low risk and frequency of ABI testing was evaluated. Fishers exact test was utilized for statistical analysis. Results: Fifty-one percent (N=187) of our population were classified as high risk for PAD, forty-three percent (N=158) were low risk, and six percent (N=22) were known to already have PAD. Amongst the high risk individuals, only six percent (N=12) had ABI testing performed while there were three percent (N=6) of low risk individuals that had this test (p=-0.34). Conclusions: There was no difference in ABI testing between high and low risk populations. Limitations of this study include lack of information regarding other diagnostic modalities that may have been used in place of ABI testing. Quality improvement may be achieved by increased use of such testing as this would allow for quicker identification of the disease, prompter treatment, and better outcomes, at a minimal cost.

Author(s):  
Ankitkumar K Patel ◽  
Rajesh M Kabadi ◽  
Rajani Sharma ◽  
Rita Schmidt ◽  
Elias Iliadis

Background: Lower extremity peripheral artery disease (PAD) is a common syndrome that afflicts many individuals and leads to significant morbidity. The American College of Cardiology (ACC)/American Heart Association (AHA) Guidelines for the Management of Peripheral Artery Disease (PAD) (JACC, 2006) outlines four clinical symptoms (claudication, walking impairment, exertional leg complaints and poorly healing wounds) that should be asked to at risk patients. Outpatient cardiology practices often take care of individuals at risk for PAD and have the opportunity to screen and improve quality of medical care in accordance with professional guidelines. Methods: A group of 367 outpatients seen in a large academic cardiology practice from September 2011 underwent chart review. Risk factors for PAD that were assessed include history of smoking, hypertension, diabetes, hyperlipidemia, homocysteine levels, and CRP. Those that had three or more risk factors or a previous diagnosis of known PAD were classified as high risk and those with less than 2 risk factors were classified as low risk. Documentation of whether clinical symptoms were asked was obtained from outpatient chart. Fisher exact test was utilized for statistical analysis. Results: Fifty-seven percent (N=208) of our population were classified as high risk for PAD and forty-three percent (N=158) were low risk. Table 1 below shows assessment of clinical symptoms in high and low risk patients. Conclusions: Though both high risk and low risk PAD patients are assessed at equivalent rates for clinical symptoms, the vast majority of patients overall are underassessed. Lack of knowledge of clinical symptoms can lead to underscreening of PAD and thus undertreatment. Increasing clinical symptom screening in the outpatient cardiology setting can lead to quality improvement and adherence to ACC/AHA Guidelines.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Emily R Cedarbaum ◽  
Yifei Ma ◽  
Rebecca Scherzer ◽  
Adaora A Adimora ◽  
Marcas Bamman ◽  
...  

Introduction: Peripheral artery disease (PAD) is associated with decreased physical function and increased mortality in the general population. PAD is common in women with and at risk for HIV infection, but its association with functional decline is unclear. We examined the contribution of PAD to gait speed in the Women’s Interagency HIV Study, controlling for traditional cardiovascular risk factors and HIV-related factors. Methods: 1,839 participants (72% HIV+) with measured ankle-brachial index (ABI) and 4-meter gait speed were included in analysis. ABI scores were categorized as: <0.7, moderate-severe PAD; 0.7-<0.9, mild PAD; 0.9-<1.0, borderline PAD; 1.0-<1.1, low-normal; 1.1-1.4, normal. Longitudinal regression models with repeated measures were used to examine the association of PAD category with log-transformed gait speed after controlling for demographic, behavioral, and cardiovascular disease risk factors, and HIV and HCV status. Coefficients represented percentage differences. Results: Median age was 50 years, >70% were Black. Figure 1 shows median gait speed by PAD group. In univariate analysis, compared to normal ABI, each category of PAD severity was associated with slower gait speed: 6% slower for low-normal (95% confidence interval [CI]:4%, 9%), 10% for borderline (95% CI:6%, 13%), 14% for mild (95% CI:9%, 18%), and 16% for moderate-severe (95% CI:5%, 25%). In multivariate analysis, PAD severity remained associated with 6% (95% CI:4%, 9%), 10% (95%CI:7%, 14%), 12% (95%CI:8%, 17%), and 11% (95%CI: -1%, 22%) slower gait speed, respectively. HIV/HCV coinfection reduced gait speed by 9% (95%CI:4%, 14%). Among HIV+ women, neither CD4 count nor HIV viral load was associated with gait speed. Conclusions: In middle-aged women with and at risk for HIV, greater PAD severity is associated with progressively slower gait speed. ABI measurement may be a simple and clinically useful tool for early assessment of functional declines.


2018 ◽  
Vol 2018 ◽  
pp. 1-4 ◽  
Author(s):  
Oscar H. Del Brutto ◽  
Robertino M. Mera ◽  
Aldo F. Costa ◽  
Mauricio Zambrano ◽  
Mark J. Sedler

Background. Information on the association between earlobe crease (ELC) and peripheral artery disease is limited. We assessed this association in community-dwelling older adults. Study Design. A total of 294 Atahualpa residents aged ≥60 years were enrolled. ELC were visually identified by two raters. The ankle-brachial index (ABI), used as a surrogate of peripheral artery disease, was categorized using American Heart Association criteria. Using logistic regression and probability models, adjusted for demographics and cardiovascular risk factors, we assessed the relationship between ELC and abnormal ABI determinations, as well as the influence of age on this association. Results. ELC was identified in 141 (48%) individuals, and abnormal ABI determination was carried out in 56 (19%). The association between ELC and abnormal ABI was nonsignificant in logistic regression and probability models with individuals stratified according to their median age. Conclusions. The association between ELC and abnormal ABI determinations is probably attenuated by the high prevalence of both conditions in older persons. ELC might not be useful for identifying candidates for ABI determination.


Author(s):  
William R. Hiatt ◽  
Connie N. Hess ◽  
Marc P. Bonaca ◽  
Sarah Kavanagh ◽  
Manesh R. Patel ◽  
...  

Background: A reduced ankle-brachial index (ABI) is a measure of atherosclerosis and is associated with ischemic risk in the general population. Whether this relationship is maintained in peripheral artery disease after lower extremity revascularization (LER), which can modify ABI, is unknown. Methods: The EUCLID (Examining Use of Ticagrelor in Peripheral Artery Disease) enrolled 13 885 patients with symptomatic peripheral artery disease; 57% with prior LER, and 43% with ABI ≤0.80. The primary major adverse cardiovascular events (MACE) outcome was a composite of cardiovascular death, myocardial infarction, or ischemic stroke. Major adverse limb events (MALE) included acute limb ischemia and major amputation. An adjusted Cox proportional hazards model demonstrated a nonlinear relationship between ABI and outcomes. A restricted cubic spline model with 4 knots was developed to identify the best fitting model to describe the relationship between ABI and MACE and MALE risk. Results: Baseline ABI (mean±SD) was 0.77±0.21 in participants with prior LER and 0.63±0.14 in those without prior LER ( P <0.0001). There was no statistical interaction between prior LER and ABI, meaning the shapes of the cubic spline models were similar between groups. In those with prior LER, for every 0.10 unit lower ABI below an ABI of 1.00, the hazard ratio for MACE was 1.08 (95% CI, 1.04–1.12; P <0.0001), below an ABI of 0.80 the hazard ratio for MALE was 1.32 (95% CI, 1.21–1.43; P <0.0001). In patients without prior LER, every 0.10 unit lower ABI below an ABI of 0.70 was associated with increased risk for MACE (hazard ratio, 1.14 [95% CI, 1.06–1.23]; P =0.0004) and MALE (hazard ratio, 1.27 [95% CI, 1.08–1.49]; P =0.003). Conclusions: Patients with established peripheral artery disease, particularly those with prior LER, have an increased risk of MACE and MALE. The ABI remains a strong predictor of MACE and MALE ischemic events with an inverse relationship below an ABI threshold for patients with and without prior LER. REGISTRATION: URL: https://www.clinicaltrials.gov ; Unique identifier: NCT01732822.


Author(s):  
Kunihiro Matsushita ◽  
Yingying Sang ◽  
Hongyan Ning ◽  
Shoshana H. Ballew ◽  
Eric K. Chow ◽  
...  

VASA ◽  
2016 ◽  
Vol 45 (1) ◽  
pp. 37-41 ◽  
Author(s):  
Ségolène Chaudru ◽  
Pierre-Yves de Müllenheim ◽  
Alexis Le Faucheur ◽  
Vincent Jaquinandi ◽  
Adrien Kaladji ◽  
...  

Abstract. Background: Ankle-brachial index (ABI) at rest is the main clinical tool to diagnose the presence of lower extremity peripheral artery disease (PAD). The method for ABI procedure (i.e., measurement, calculation and interpretation) is standardised and guidelines were published in 2012. This study sought to: i) assess knowledge about the three major steps of the ABI procedure (i.e., measurement, calculation and interpretation) among residents from different medical schools, ii) compare the ABI knowledge of experienced residents (i.e., who have already performed ABI procedure more than 20 times) with the knowledge of inexperienced residents, and iii) describe the most common errors by residents. Methods: Residents from six medical schools were invited to complete a questionnaire about the ABI procedure. Results: Sixty-eight residents completed the questionnaire. None of them knew how to perform the entire ABI procedure. Overall, 22 %, 13 % and 41 % of residents correctly answered questions about ABI measurement, ABI calculation and ABI interpretation, respectively. Score comparisons underlined the fact that experienced residents (n = 26) answered ABI measurement questions to a significantly better level and had a significantly higher total score than inexperienced residents (n = 42) (P = 0.0485 and P = 0.0332, respectively). Errors were similar for most of the residents. Conclusions: Our study confirms that experienced residents have significantly better ABI procedure knowledge than inexperienced residents. However, none of them are able to perform the entire ABI procedure without any mistake with regard to current guidelines. It is important that training be given to residents in medical schools in order to improve their ABI procedure knowledge.


VASA ◽  
2016 ◽  
Vol 45 (5) ◽  
pp. 403-410 ◽  
Author(s):  
Dietmar Krause ◽  
Ina Burghaus ◽  
Ulrich Thiem ◽  
Ulrike S. Trampisch ◽  
Matthias Trampisch ◽  
...  

Abstract. Background: To assess the risk of peripheral artery disease (PAD) in older adults and the contribution of traditional and novel risk factors to the incidence of PAD. Patients and methods: 344 general practitioners (GPs), trained by vascular specialists all over Germany, enrolled 6,880 unselected participants aged 65 years or older (getABI study). The onset of PAD was determined by a regression method in the course of repeated measurements of the ankle brachial index (ABI) over seven years. PAD onset was defined by the declining linear regression ABI line reaching 0.9 or by PAD symptoms. Results: The cumulative PAD incidence over seven years was 12.9%, corresponding to an incidence rate of 20.3 per 1000 person years (95% confidence interval [95%CI] 18.8 to 21.7). Logistic regression analysis showed that traditional risk factors contributed significantly to the risk of PAD: current smoker status (odds ratio 2.65, 95%CI 2.08 to 3.37), diabetes (1.35, 95%CI 1.13 to 1.62), and low-density lipoprotein >130 mg/dl (1.26, 95%CI 1.07 to 1.48). Three novel risk factor candidates showed significant impact on PAD incidence: elevated sensitive C-reactive protein level (1.23, 95%CI 1.05 to 1.45), impaired estimated glomerular filtration rate (1.27, 95%CI 1.03 to 1.56), and elevated homocysteine level (1.19, 95%CI 1.01 to 1.41). Conclusions: Older adults in Germany have a PAD risk of 12.9% per seven years. Potentially modifiable traditional PAD risk factors yield high impact on PAD incidence. Novel risk factor candidates may contribute to the risk of PAD


2011 ◽  
Vol 214 (1) ◽  
pp. 169-173 ◽  
Author(s):  
Victor Aboyans ◽  
Robyn L. McClelland ◽  
Matthew A. Allison ◽  
Mary McGrae McDermott ◽  
Roger S. Blumenthal ◽  
...  

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