scholarly journals 338. Patients Living with HIV Infection Are Less Likely to Receive the Correct Intensity of Statin Therapy for Cardiovascular Disease Risk Reduction

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S179-S180
Author(s):  
Jason J Schafer ◽  
Roshni Patel ◽  
Nicholas V Hastain ◽  
Todd Miano
Keyword(s):  
Cardiovascular Disease ◽  
Statin Therapy ◽  
Risk Reduction ◽  
Univariate Analysis ◽  
Blood Cholesterol ◽  
Atherosclerotic Cardiovascular Disease ◽  
Lipid Panel ◽  
Ascvd Risk ◽  
Living With Hiv ◽  
To Receive

Abstract Background Patients living with HIV (PLWH) at risk for atherosclerotic cardiovascular disease (ASCVD) should receive risk reduction interventions recommended in current guidelines. This includes routine ASCVD risk assessments and when eligible, statins selected and dosed to achieve appropriate low-density lipoprotein cholesterol (LDL-C) reduction. Recent studies suggest that statins are underprescribed in PLWH, but none have assessed if eligible patients receive the correct statin intensity compared with uninfected controls. Methods This retrospective study evaluated statin eligibility and prescribing among consecutive patients in an HIV clinic and an internal medicine clinic at an urban, academic medical center from June-September 2018. To determine statin eligibility, the 2013 American College of Cardiology/American Heart Association guideline on treating blood cholesterol to reduce ASCVD risk was used. Patients aged 40–75 that had a lipid panel obtained within the last year were included. All patients were assessed to determine eligibility for and actual treatment with appropriate statin therapy. Characteristics of patients correctly and incorrectly treated with statins were compared with chi-square testing and predictors for receiving correct statin therapy were determined with logistic multivariable regression. Results A total of 221/300 study subjects were statin eligible (Table 1). While many eligible PLWH were receiving a statin (54/106), considerably fewer were on the correct statin intensity for their benefit group (33/106). In the univariate analysis (Table 2), correctly treated patients were less likely to be PLWH or female, and were more likely to have polypharmacy and hypertension. In the multivariable logistic regression analysis (Table 3), PLWH (OR 0.26, CI95 0.12–0.57)) were significantly less likely to receive correct statin therapy, while those with concomitant polypharmacy were significantly more likely to receive correct statin therapy (OR 5.52, CI95 1.94, 15.69). Conclusion This study reveals that PLWH may be at a substantial disadvantage in terms of receiving correct statin therapy for ASCVD risk reduction. This finding may be particularly important given the heightened risk for ASCVD in this patient population. Disclosures All authors: No reported disclosures.

Patients Living With HIV Are Less Likely to Receive Appropriate Statin Therapy for Cardiovascular Disease Risk Reduction

2021 ◽  
pp. 089719002199979
Author(s):  
Roshni P. Emmons ◽  
Nicholas V. Hastain ◽  
Todd A. Miano ◽  
Jason J. Schafer
Keyword(s):  
Cardiovascular Disease ◽  
Logistic Regression ◽  
Statin Therapy ◽  
Risk Reduction ◽  
Blood Cholesterol ◽  
Control Group ◽  
Atherosclerotic Cardiovascular Disease ◽  
Ascvd Risk ◽  
Living With Hiv ◽  
To Receive

Background: Recent studies suggest that statins are underprescribed in patients living with HIV (PLWH) at risk for atherosclerotic cardiovascular disease (ASCVD), but none have assessed if eligible patients receive the correct statin and intensity compared to uninfected controls. Objectives: The primary objective was to determine whether statin-eligible PLWH are less likely to receive appropriate statin therapy compared to patients without HIV. Methods: This retrospective study evaluated statin eligibility and prescribing among patients in both an HIV and internal medicine clinic at an urban, academic medical center from June-September 2018 using the American College of Cardiology/American Heart Association guideline on treating blood cholesterol to reduce ASCVD risk. Patients were assessed for eligibility and actual treatment with appropriate statin therapy. Characteristics of patients appropriately and not appropriately treated were compared with chi-square testing and predictors for receiving appropriate statin therapy were determined with logistic regression. Results: A total of 221/300 study subjects were statin-eligible. Fewer statin-eligible PLWH were receiving the correct statin intensity for their risk benefit group versus the uninfected control group (30.2% vs 67.0%, p < 0.001). In the multivariable logistic regression analysis, PLWH were significantly less likely to receive appropriate statin therapy, while those with polypharmacy were more likely to receive appropriate statin therapy. Conclusion: Our study reveals that PLWH may be at a disadvantage in receiving appropriate statin therapy for ASCVD risk reduction. This is important given the heightened risk for ASCVD in this population, and strategies that address this gap in care should be explored.

scholarly journals 941. Incarcerated patients living with HIV: Atherosclerotic cardiovascular disease risk and management

2020 ◽  
Vol 7 (Supplement_1) ◽  
pp. S503-S504
Author(s):  
Sarah M Michienzi ◽  
Thomas D Chiampas ◽  
Amy Valkovec ◽  
Siria Arzuaga ◽  
Mahesh C Patel ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Statin Therapy ◽  
Disease Risk ◽  
Cardiovascular Disease Risk ◽  
Heart Association ◽  
Blood Cholesterol ◽  
Atherosclerotic Cardiovascular Disease ◽  
Lipid Panel ◽  
Ascvd Risk ◽  
Living With Hiv

Abstract Background The 2018 American Heart Association and American College of Cardiology (AHA/ACC) 2018 Guideline on the Management of Blood Cholesterol included human immunodeficiency virus (HIV) as an atherosclerotic cardiovascular disease (ASCVD) risk enhancer for the first time. Our study investigates if patients living with HIV in the Illinois Department of Corrections (IDOC) were prescribed appropriate HMG-CoA reductase inhibitor (statin) therapy following release of these guidelines based on risk. Methods This was a retrospective study of patients with &gt; 1 visit in our multidisciplinary HIV IDOC Telemedicine Clinic from 1/1/19-6/1/19. Our prescriptive authority is limited to HIV and directly related conditions, and we provide recommendations to on-site providers for other comorbidities. Included patients were &gt; 18 years of age, HIV positive, and incarcerated within IDOC. Excluded patients had existing ASCVD. Data from the first visit in the study period were extracted from the electronic medical record and analyzed utilizing descriptive statistics. Primary objectives were to quantify ASCVD risk and appropriate statin use in our population. Results Of the 158 patients included, average age was 42 years. The majority were male (89%), Black (73%), overweight/obese (117/148, 79%), on an integrase single-tablet regimen (78%), with CD4 &gt;200 cells/µL (97%), and HIV RNA &lt; 20 copies/mL (85%). Of the 18 females, 8 were transgender. Within the prior year, 65% had a lipid panel. For the 50 patients meeting criteria for 10-year ASCVD estimation, median (range) risk was 6.6% (0.8% - 31.9%). Only 12 patients were on statins. Of these, all were indicated per AHA/ACC guidelines with 10 prescribed appropriate intensity. An additional 45 patients had indications for statins but were untreated. In total, 47 patients (30%) were not receiving appropriate statin therapy. Conclusion Results of our study suggest ASCVD risk management is an area of improvement for inmates living with HIV, especially as we look towards caring for an aging HIV population. Future directions include comparing these data to data from a later time point to evaluate time for guideline uptake. Disclosures Thomas D. Chiampas, PharmD, BCPS, AAHIVP, Gilead (Employee)

New Approaches for the Prevention and Treatment of Cardiovascular Disease: Focus on Lipoproteins and Inflammation

2020 ◽  
Vol 72 (1) ◽  
Author(s):  
Aliza Hussain ◽  
Christie M. Ballantyne
Keyword(s):  
Cardiovascular Disease ◽  
Statin Therapy ◽  
Low Density Lipoprotein ◽  
Density Lipoprotein ◽  
Annual Review ◽  
Publication Date ◽  
Atherosclerotic Cardiovascular Disease ◽  
Substantial Progress ◽  
Ascvd Risk ◽  
Made In

Although numerous trials have convincingly shown benefits of statin therapy in both primary and secondary prevention of atherosclerotic cardiovascular disease (ASCVD), most showed relative risk reductions of 25–40%, and thus many individuals continue to have ASCVD events despite statin therapy. Substantial progress has been made in developing therapies that address the residual risk for ASCVD despite statin therapy. In this review, we summarize progress of currently available therapies along with therapies under development that further reduce low-density lipoprotein cholesterol and apolipoprotein B–containing lipoproteins, reduce lipoprotein(a), reduce ASCVD events in patients with high triglycerides, and directly target inflammation to reduce ASCVD risk. Expected final online publication date for the Annual Review of Medicine, Volume 72 is January 27, 2021. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.

scholarly journals Atherosclerotic Cardiovascular Disease Risk Profile of Tenofovir Alafenamide Versus Tenofovir Disoproxil Fumarate

2019 ◽  
Vol 7 (1) ◽  
Author(s):  
Gregory D Huhn ◽  
David J Shamblaw ◽  
Jean-Guy Baril ◽  
Priscilla Y Hsue ◽  
Brittany L Mills ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Total Cholesterol ◽  
Statin Therapy ◽  
Tenofovir Disoproxil Fumarate ◽  
Density Lipoprotein ◽  
Hiv Care ◽  
Atherosclerotic Cardiovascular Disease ◽  
Ascvd Risk ◽  
Tenofovir Alafenamide ◽  
The Impact

Abstract Background In human immunodeficiency virus (HIV) treatment, tenofovir alafenamide (TAF) is associated with greater increases in all fasting cholesterol subgroups compared with tenofovir disoproxil fumarate (TDF). Because lipid abnormalities may contribute to cardiovascular morbidity and mortality, cardiovascular risk assessment is integral to routine HIV care. This post hoc study evaluates the impact of lipid changes on predicted atherosclerotic cardiovascular disease (ASCVD) risk and statin eligibility in treatment-naive adults living with HIV treated with TAF or TDF. Methods Participants (N = 1744) were randomized (1:1) to initiate TAF or TDF, each coformulated with elvitegravir/cobicistat/emtricitabine (studies GS-US-292-0104 and GS-US-292-0111). Eligibility for statin therapy and estimated 10-year ASCVD risk among adults aged 40–79 years treated with TAF or TDF for 96 weeks (W96) were analyzed based on American College of Cardiology/American Heart Association Pooled Cohort Equations. Categorical shifts in 10-year ASCVD risk from &lt;7.5% to ≥7.5% by W96 on TAF versus TDF were calculated. Results Participants initiating TAF versus TDF in the overall study population showed small but significant increases in median fasting lipid parameters at W96, including total cholesterol (191 vs 177 mg/dL; P &lt; .001), low-density lipoprotein ([LDL] 119 vs 112 mg/dL; P &lt; .001), and high-density lipoprotein ([HDL] 51 vs 48 mg/dL; P &lt; .001), respectively. At baseline, 18% and 23% on TAF versus TDF had a 10-year ASCVD risk score ≥7.5%, with mean risk scores low overall for TAF versus TDF at baseline (4.9% vs 5.4%; P = .35) and W96 (6.1% vs 6.2%; P = .04). Increases in ASCVD risk from baseline to W96 were driven by both increasing age and changes in total cholesterol (TC) and HDL cholesterol. At W96, TC/HDL ratios (median) were 3.7 for both groups (P = .69). There was no difference between shifts in categorical risk for TAF versus TDF (9% vs 5%; P = .19). Eligibility for high-intensity statin therapy were similar for TAF versus TDF groups (19% vs 21%; P = .47). Conclusions Lipid changes with TAF as part of coformulated regimens do not substantively affect CVD risk profiles compared with TDF.

scholarly journals Optimisation of lipids for prevention of cardiovascular disease in a primary care

2018 ◽  
Vol 7 (3) ◽  
pp. e000071
Author(s):  
Smita Bakhai ◽  
Aishwarya Bhardwaj ◽  
Parteet Sandhu ◽  
Jessica L. Reynolds
Keyword(s):  
Cardiovascular Disease ◽  
Electronic Health Records ◽  
Lipid Profile ◽  
Statin Therapy ◽  
Risk Score ◽  
Completion Rate ◽  
Atherosclerotic Cardiovascular Disease ◽  
Health Records ◽  
Ascvd Risk ◽  
Electronic Health

The 2013 American College of Cardiology/American Heart Association (ACC/AHA) guidelines focus on atherosclerotic cardiovascular disease (ASCVD) risk reduction, using a Pooled Cohort Equation to calculate a patient’s 10-year risk score, which is used to guide initiation of statin therapy. We identified a gap of evidence-based treatment for hyperlipidaemia in the Internal Medicine Clinic. Therefore, the aim of this study was to increase calculation of ASCVD risk scores in patients between the ages of 40 and 75 years from a baseline rate of less than 1% to 10%, within 12 months, for primary prevention of ASCVD. Root cause analysis was performed to identify materials/methods, provider and patient-related barriers. Plan-Do-Study-Act cycles included: (1) creation of customised workflow in electronic health records for documentation of calculated ASCVD risk score; (2) physician education regarding guidelines and electronic health record workflow; (3) refresher training for residents and a chart alert and (4) patient education and physician reminders. The outcome measures were ASCVD risk score completion rate and percentage of new prescriptions for statin therapy. Process measures included lipid profile order and completion rates. Increase in patient wait time, and blood test and medications costs were the balanced measures. We used weekly statistical process control charts for data analysis. The average ASCVD risk completion rate was 14.2%. The mean ASCVD risk completion rate was 4.0%. In eligible patients, the average lipid profile completion rate was 18%. ASCVD risk score completion rate was 33% 1-year postproject period. A team-based approach led to a sustainable increase in ASCVD risk score completion rate. Lack of automation in ASCVD risk score calculation and physician prompts in electronic health records were identified as major barriers. Furthermore, the team identified multiple barriers to lipid blood tests and treatment of increased ASCVD risk based on ACC/AHA guidelines.

scholarly journals Factors Associated with Disparities in Appropriate Statin Therapy in an Outpatient Inner City Population

2020 ◽  
Author(s):  
Giselle Alexandra Suero Abreu ◽  
Aris Karatasakis ◽  
Sana Rashid ◽  
Maciej Tysarowski ◽  
Analise Y Douglas ◽  
...  
Keyword(s):  
Statin Therapy ◽  
Statin Treatment ◽  
Blood Cholesterol ◽  
Lipid Lowering ◽  
Atherosclerotic Cardiovascular Disease ◽  
Care Clinic ◽  
Black Race ◽  
Black Patients ◽  
Hispanic Patients ◽  
Ascvd Risk

Introduction: Appropriate lipid-lowering therapies are essential for the primary and secondary prevention of atherosclerotic cardiovascular disease (ASCVD). The aim of this study is to identify discrepancies between cholesterol management guidelines and current practice in an underserved population, with a focus on statin treatment. Methods: We reviewed the records of 1,042 consecutive patients seen between August 2018 and August 2019 in an outpatient academic primary care clinic. Eligibility for statin and other lipid-lowering therapies was determined based on the 2018 American Heart Association and American College of Cardiology (AHA/ACC) guideline on the management of blood cholesterol. Results: Among 464 statin-eligible patients, age was 61.1 +/- 10.4 years and 53.9% were female. Most patients were Black (47.2%), followed by Hispanic (45.7%), and White (5.0%). Overall, 82.1% of patients were prescribed a statin. Statin-eligible patients who qualified based only on a 10-year ASCVD risk > 7.5% were less likely to be prescribed a statin (32.8%, p<0.001). After adjustment for gender and health insurance status, appropriate statin treatment was independently associated with age > 55 years (OR = 4.59 [95% CI 1.09 - 16.66], p = 0.026), hypertension (OR = 2.38 [95% CI 1.29 - 4.38], p = 0.005) and chronic kidney disease (OR = 3.95 [95% CI 1.42 - 14.30], p = 0.017). Factors independently associated with statin undertreatment were Black race (OR = 0.42 [95% CI 0.23 - 0.77], p = 0.005), and statin-eligibility based solely on an elevated 10-year ASCVD risk (OR = 0.14 [95% CI 0.07 - 0.25], p < 0.001). Hispanic patients were more likely to be on appropriate statin therapy when compared to Black patients (86.8% vs 77.2%). Conclusion: Statin underprescription is seen in approximately one out of five eligible patients, and is independently associated with Black race, younger age, fewer comorbidities, and eligibility via 10-year ASCVD risk only. Hispanic patients are more likely to be on appropriate statin therapy compared to Black patients.

scholarly journals Optimizing Atherosclerotic Cardiovascular Disease Risk Estimation for Veterans With Diabetes Mellitus

2020 ◽  
Vol 13 (9) ◽  
Author(s):  
Sridharan Raghavan ◽  
Yuk-Lam Ho ◽  
Jason L. Vassy ◽  
Daniel Posner ◽  
Jacqueline Honerlaw ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Cardiovascular Disease ◽  
Statin Therapy ◽  
Risk Estimation ◽  
Model Performance ◽  
Atherosclerotic Cardiovascular Disease ◽  
Electronic Health Record Data ◽  
C Statistic ◽  
Ascvd Risk ◽  
Electronic Health

Background: Estimated 10-year atherosclerotic cardiovascular disease (ASCVD) risk in diabetes mellitus patients is used to guide primary prevention, but the performance of risk estimators (2013 Pooled Cohort Equations [PCE] and Risk Equations for Complications of Diabetes [RECODe]) varies across populations. Data from electronic health records could be used to improve risk estimation for a health system’s patients. We aimed to evaluate risk equations for initial ASCVD events in US veterans with diabetes mellitus and improve model performance in this population. Methods AND RESULTS: We studied 183 096 adults with diabetes mellitus and without prior ASCVD who received care in the Veterans Affairs Healthcare System (VA) from 2002 to 2016 with mean follow-up of 4.6 years. We evaluated model discrimination, using Harrell’s C statistic, and calibration, using the reclassification χ 2 test, of the PCE and RECODe equations to predict fatal or nonfatal myocardial infarction or stroke and cardiovascular mortality. We then tested whether model performance was affected by deriving VA-specific β-coefficients. Discrimination of ASCVD events by the PCE was improved by deriving VA-specific β-coefficients (C statistic increased from 0.560 to 0.597) and improved further by including measures of glycemia, renal function, and diabetes mellitus treatment (C statistic, 0.632). Discrimination by the RECODe equations was improved by substituting VA-specific coefficients (C statistic increased from 0.604 to 0.621). Absolute risk estimation by PCE and RECODe equations also improved with VA-specific coefficients; the calibration P increased from <0.001 to 0.08 for PCE and from <0.001 to 0.005 for RECODe, where higher P indicates better calibration. Approximately two-thirds of veterans would meet a guideline indication for high-intensity statin therapy based on the PCE versus only 10% to 15% using VA-fitted models. Conclusions: Existing ASCVD risk equations overestimate risk in veterans with diabetes mellitus, potentially impacting guideline-indicated statin therapy. Prediction model performance can be improved for a health system’s patients using readily available electronic health record data.

scholarly journals 337. Switching from TDF to TAF: Missed Opportunities for Statin Use in HIV

2019 ◽  
Vol 6 (Supplement_2) ◽  
pp. S179-S179
Author(s):  
Patrick Mallon ◽  
Laurence Brunet ◽  
Jennifer S Fusco ◽  
Girish Prajapati ◽  
Andrew P Beyer ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Statin Therapy ◽  
Low Density Lipoprotein ◽  
Healthcare Providers ◽  
Density Lipoprotein ◽  
People Living With Hiv ◽  
Atherosclerotic Cardiovascular Disease ◽  
Missed Opportunities ◽  
Ascvd Risk ◽  
Missed Opportunity

Abstract Background People living with HIV (PLWH) have been observed to have twice the risk for atherosclerotic cardiovascular disease (ASCVD) as the general population. Increases in total and low-density lipoprotein cholesterol have been observed in PLWH switching from tenofovir disoproxil fumarate (TDF) to tenofovir alafenamide (TAF). Changes in regimens represent an opportunity for healthcare providers to assess health markers and address clinical concerns. Current guidelines recommend initiating statin therapy in individuals with an elevated ASCVD risk. Failure to initiate statins in PLWH with an ASCVD ≥ 7.5% at switch represents a missed opportunity for statin initiation. We aimed to assess missed opportunities for statin therapy in PLWH switching from TDF to TAF-containing antiretroviral therapy. Methods Adults switching from TDF to TAF with ≥1 lipid measure on TDF ≤6 months prior to switch and ≥1 lipid measure ≥7 days after switch to TAF were identified in the OPERA® cohort (84 clinics in 18 US states/territories). The proportion of PLWH prescribed statins pre- and post-switch was stratified by ASCVD risk (recommended threshold: ASCVD ≥ 7.5%). The ASCVD score was imputed using the limit value for components out of the pre-specified range. Results 6,451 PLWH switched from TDF to TAF (Figure 1); over 90% had ASCVD scores available pre- (n = 5801) and post-switch (n = 5881). High ASCVD risk (≥7.5%) was more likely post-switch (34.1) than pre-switch (32.1%, P = 0.02; Figure 2). Of those with high ASCVD risk, only 31% and 41% were prescribed statins pre- vs. post-switch, respectively (Figure 3), representing a considerable missed opportunity for ASCVD prevention, with 59% of PLWH with an elevated risk of ASCVD not prescribed statins after switch from TDF to TAF. ASCVD scores were imputed for those outside the range of the score (e.g., patients < 40 years of age) to evaluate the entire population. Comparable results were obtained when the analysis was limited to PLWH who did not require ASCVD score imputation. Conclusion Despite a switch from TDF to TAF being associated with higher numbers of PLWH with elevated ASCVD risk, most did not receive a statin, representing considerable missed opportunities to reduce risk of cardiovascular disease in this at-risk population. Disclosures All authors: No reported disclosures.

Abstract 14646: Internal Medicine Housestaff Perceptions of Statins and ACC/AHA Blood Cholesterol Guidelines

Circulation ◽  
2014 ◽  
Vol 130 (suppl_2) ◽  
Author(s):  
Peter Flueckiger ◽  
Stephen Juraschek ◽  
Micah Eades ◽  
Amit Khera ◽  
Michael Blaha ◽  
...  
Keyword(s):  
Internal Medicine ◽  
Side Effects ◽  
Statin Therapy ◽  
Perceived Risk ◽  
Gastrointestinal Symptoms ◽  
Blood Cholesterol ◽  
Atherosclerotic Cardiovascular Disease ◽  
Prescribing Practices ◽  
Ascvd Risk ◽  
Cholesterol Guidelines

Background: Statins are integral in the prevention of atherosclerotic cardiovascular disease (ASCVD). Provider perceptions and prescribing practices of statins vary. Internal medicine housestaff (HS) perceptions of statins and new ACC/AHA cholesterol guidelines have not previously been assessed. Methods: We examined internal medicine HS perceptions of statins and ACC/AHA cholesterol guidelines through a 48-question survey. We surveyed HS at three academic training programs. Anonymous responses were collected via a secure website. Results: 99 respondents’ results (84% categorical residents) were examined from Emory, Johns Hopkins, and UTSW. HS report observing low rates of statin side effects: 64% and 91% reported rates of <3% and <10%. Majority of side effects were myalgias (69%), transaminitis (23%), and gastrointestinal symptoms (5%). Over half (54%) of respondents check transaminases prior to statin therapy. If transaminitis >1-2x upper limit of normal (ULN) develop only 6% of residents stop statin therapy, though 62% stop therapy if transaminitis >3x ULN. In stable liver disease, 13% use non-statin therapy. Most residents (73%) agree that patients understand why they are prescribed statins and feel compliance is influenced by experienced/perceived risk of side effects (44%), cost (30%), and medical benefit (13%). However, HS do not discuss side effects in 25% of patients and only 44% agree patients frequently ask about side effects. Additionally, only 51% of HS discuss ASCVD risk with a majority of patients. HS perceive high rates of statin adherence (87% state >50% adherence at one year). Of 61 HS, 72% learned of new lipid guidelines through residency training. Nearly all (89%) read a portion of the guidelines and are likely to implement them (97%). However, only 57% agree the guidelines are clear or straightforward to apply in clinical practice and 66% agreed the guidelines will improve/reduce ASCVD risk. Only 48% agree new guidelines will improve quality of patient care. Conclusion: Practice patterns of statin therapy vary among medicine HS. Side effects and ASCVD risk are not frequently discussed with patients. Though HS are aware of new cholesterol guidelines, a gap exists between implementation and perceived benefits/ASCVD risk reduction.

Abstract 15661: Discordant LDL-C Estimates and Incident Atherosclerotic Cardiovascular Disease: The Dallas Heart Study

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Nicholas Macpherson ◽  
Nestor Vasquez ◽  
Amit Khera ◽  
Anand Rohatgi ◽  
Seth S Martin ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Lipid Lowering ◽  
Atherosclerotic Cardiovascular Disease ◽  
Lipid Lowering Therapy ◽  
The Metabolic Syndrome ◽  
Heart Study ◽  
Lipid Panel ◽  
Ascvd Risk ◽  
Dallas Heart Study

Introduction: The Friedewald equation (F-LDL-C) and the Martin-Hopkins algorithm (MH-LDL-C) estimate direct LDL-C from a standard lipid panel. Discordant LDL-C estimates by the two methods may carry significant clinical implications. We evaluated the clinical variables associated with discordant LDL-C estimates and the association of discordance with risk of incident atherosclerotic cardiovascular disease (ASCVD) in the Dallas Heart Study (DHS), a multi-ethnic, population based prospective cohort. Methods: We estimated F-LDL-C and MH-LDL-C in 2824 DHS participants (42% male; mean age 43.5 years) with TG ≤ 400 mg/dL, who were not on baseline lipid lowering therapy and were free of prior ASCVD. We divided the cohort into quintiles of LDL-C discordance (MH-LDL-C minus F-LDL-C, in mg/dL) and assessed associations with ASCVD risk factors. We evaluated associations between discordance and incident ASCVD by sequentially adjusted Cox regression models, and we generated restricted cubic spline plots of discordance and hazard for ASCVD. Results: There were 228 ASCVD events over a median of 12.3 years. Clinical characteristics across discordance quintiles are shown in the Table . After adjustment for traditional ASCVD risk factors, there was a linear association between higher LDL-C discordance and increased risk of ASCVD events ( Figure ) with the highest hazard in Quintile 5 (HR 1.5, 95% CI 1.1 - 2.0). Conclusions: Discordant LDL-C estimates were largely associated with male sex, White and Hispanic races, and characteristics of the metabolic syndrome. Individuals in the highest quintile of discordant LDL-C estimates, with MH-LDL-C > F-LDL-C, had greater risk for incident ASCVD.

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