Strategies for enhancing the initiation of cholesterol lowering medication among patients at high cardiovascular disease risk: a qualitative descriptive exploration of patient and general practitioners' perspectives on a facilitated relay intervention in Alberta, Canada

Physician Approaches to Antithrombotic Therapies for Recently Symptomatic Carotid Stenosis

BACKGROUND

Whereas the beneficial effect of antiplatelet therapy for recurrent stroke prevention has been well established, uncertainties remain regarding the optimal antithrombotic regimen for recently symptomatic carotid stenosis. We sought to explore the approaches of stroke physicians to antithrombotic management of patients with symptomatic carotid stenosis.

METHODS

We employed a qualitative descriptive methodology to explore the decision-making approaches and opinions of physicians regarding antithrombotic regimens for symptomatic carotid stenosis. We conducted semi-structured interviews with a purposive sample of 22 stroke physicians (11 neurologists, 3 geriatricians, 5 interventional-neuroradiologists, and 3 neurosurgeons) from 16 centers on four continents to discuss symptomatic carotid stenosis management. We then conducted thematic analysis on the transcripts.

RESULTS

Important themes revealed from our analysis included limitations of existing clinical trial evidence, competing surgeon versus neurologist/internist preferences, and the choice of antiplatelet therapy while awaiting revascularization. There was a greater concern for adverse events while using multiple antiplatelet agents (e.g., dual-antiplatelet therapy (DAPT)) in patients undergoing carotid endarterectomy compared to carotid artery stenting. Regional variations included more frequent use of single antiplatelet agents among European participants. Areas of uncertainty included antithrombotic management if already on an antiplatelet agent, implications of nonstenotic features of carotid disease, the role of newer antiplatelet agents or anticoagulants, platelet aggregation testing, and timing of DAPT.

CONCLUSION

Our qualitative findings can help physicians critically examine the rationale underlying their own antithrombotic approaches to symptomatic carotid stenosis. Future clinical trials may wish to accommodate identified variations in practice patterns and areas of uncertainty to better inform clinical practice.

US Trends in Cholesterol Screening, Lipid Levels, and Lipid-Lowering Medication Use in US Adults, 1999 to 2018

Background Understanding current trends in cholesterol screening, lipid levels, and lipid management therapies may inform health policy and practice. Methods and Results In 50 928 US adult National Health and Nutrition Examination Survey (NHANES) participants, trends were assessed in cholesterol screening, mean levels of total cholesterol, triglycerides, low-density-lipoprotein cholesterol, and lipid-lowering medication use from 1999 through 2018. Point estimates were also calculated using the 2017 to March 2020 prepandemic data set. The age- and sex-adjusted proportion of having cholesterol screened within 5 years increased from 63.2% (95% CI, 60.0-66.3) in 1999 to 2000 to 72.5% (95% CI, 69.5-75.3) in 2017 to 2018 (P<0.001 for linear trend). Mean total cholesterol decreased from 203.3 mg/dL (95% CI, 201.0-205.7) in 1999 to 2000 to 188.4 mg/dL in 2017 to 2018 (95% CI, 185.4-191.5) (P<0.001 for nonlinear trend). The mean triglyceride level decreased from 121.3 mg/dL (95% CI, 116.4-126.4) in 1999 to 2000 to 91.4 mg/dL (95% CI, 88.4-94.6) in 2017 to 2018 (P<0.001 for nonlinear trend). Low-density lipoprotein cholesterol decreased from 127.9 mg/dL (95% CI, 125.3-130.5) in 1999 to 2000 to 111.7 mg/dL (95% CI, 109.0-114.4) in 2017 to 2018 (P<0.001 for nonlinear trend). Among statin-eligible US adults, the proportion of statin use increased from 14.9% (95% CI, 12.2-17.9) in 1999 to 2000 to 27.8% (95% CI, 23.0-33.2) in 2017 to 2018 (P<0.001 for nonlinear trend). Statin use increased in adults with diabetes aged 40 to 75 years from 21.4% in 1999 to 2000 to 51.9% in 2017 to 2018 (P<0.001 for overall linear trend). Statin use plateaued in all other groups. The proportions of using ezetimibe and proprotein convertase subtilisin/kexin type 9 inhibitors were 3.7% (95% CI, 1.3-9.8) and 0.03% (95% CI, 0.01-0.15) in 2017 to March 2020, respectively. Conclusions From 1999 through 2018, cholesterol screening increased while mean total cholesterol, triglycerides, and low-density lipoprotein cholesterol levels decreased, with a modest increase in statin use and low uptake of nonstatin therapy in the US population.

Estimating Prevalence and Characteristics of Statin Intolerance among High and Very High Cardiovascular Risk Patients in Germany (2017 to 2020)

Statin intolerance (SI) (partial and absolute) could lead to suboptimal lipid management. The lack of a widely accepted definition of SI results into poor understanding of patient profiles and characteristics. This study aims to estimate SI and better understand patient characteristics, as reflected in clinical practice in Germany using supervised machine learning (ML) techniques. This retrospective cohort study utilized patient records from an outpatient setting in Germany in the IQVIA™ Disease Analyzer. Patients with a high cardiovascular risk, atherosclerotic cardiovascular disease, or hypercholesterolemia, and those on lipid-lowering therapies between 2017 and 2020 were included, and categorized as having “absolute” or “partial” SI. ML techniques were applied to calibrate prevalence estimates, derived from different rules and levels of confidence (high and low). The study included 292,603 patients, 6.4% and 2.8% had with high confidence absolute and partial SI, respectively. After deploying ML, SI prevalence increased approximately by 27% and 57% (p < 0.00001) in absolute and partial SI, respectively, eliciting a maximum estimate of 12.5% SI with high confidence. The use of advanced analytics to provide a complementary perspective to current prevalence estimates may inform the identification, optimal treatment, and pragmatic, patient-centered management of SI in Germany.

Long-Term Association between Intensive Medical Treatment and the Incidence of Cardiovascular Outcomes in Patients with Dyslipidemia: an Observational Study

INTRODUCTION

The management of patients with dyslipidemia (DLP) requires intensive medical follow-up as an essential part of treatment and to reduce the risk of cardiovascular (CV) outcomes. The aim of this study was to evaluate whether adherence to medical treatment changed the prevalence of CV disease events in a retrospective 7-year follow-up analysis.

METHODS

This retrospective study involved 92 patients divided into two groups according to their adherence: the REG group with 64 patients who had medical appointments from 2012 to 2018, and the DROP group, with 28 patients who had medical appointments in 2012 but did not complete regular appointments until 2018. Cox proportional hazard models were fitted to estimate hazard ratios associated with CV outcomes as primary endpoints.

RESULTS

We observed a total of 32 cases of acute myocardial infarction (AMI) in the study population, 17 (338.41 pY) in the REG group and 15 (62.97 pY) in the DROP group. An increased hazard of AMIs was observed in the DROP group compared with the REG group by follow-up time (p < 0.001). We found that previous events of AMI and congestive heart failure (CHF) were associated with progression to treatment dropout (p < 0.05) and that two drugs were considered a risk factor for treatment dropout, diuretics and fibrates (p < 0.05).

CONCLUSIONS

A reduced hazard of AMI was observed in patients who complete a greater number of medical appointments and receive multidisciplinary treatment on a regular basis.

Understanding breast cancer risk factors: is there any mismatch between laywomen perceptions and expert opinions

Background

Women’s perception and knowledge of breast cancer signs, symptoms, and risk factors could be conducive to breast cancer risk management and interventions. The present study aimed to explore Iranian laywomen perceptions and expert opinions regarding breast cancer risk factors.

Methods

This qualitative study was conducted from March to November 2019 in Mashhad, northeast of Iran. Through purposive sampling, 24 laywomen (women with and without BC) and 10 experts of different fields including oncology, surgery, gynecology and reproductive health were selected. Data collection was carried out using semi-structured interviews, which was mainly focused on the participants’ understanding and perception of BC risk factors. The data was analyzed utilizing conventional content analysis developed by Graneheim & Lundman. Components of trustworthiness, including credibility, dependability, confirmability, and transferability were considered.

Results

The main category of risk factors, which emerged from the lay participants’ data analysis, were “unhealthy lifestyle and habits” , “hormonal influences”, “environmental exposures”, “Individual susceptibility “and “belief in supernatural powers”. The experts had similar perspectives for certain risk factors, yet not for all. The category of “Individual history of disease” was emerged only from experts’ interviews.

Conclusion

In the present study, the lay participants’ perception concerning BC risk factors was found to be a mixture of cultural beliefs and the scientific knowledge dispersed by the media, internet, and health services. Primary prevention approaches, including awareness of breast cancer risk factors, are required for women to make improved health-related choices.