Single Measurement of High-Sensitivity Troponin To Assess Myocardial Infarction Risk

MedicalResearch.com Interview with:

Dr. Fred Apple, PhD, DABCC Medical director,Clinical Laboratories, Clinical Chemistry, Clinical and Forensic Toxicology and Point of Care Testing, Hennepin HealthCare Principal investigator, Minneapolis Medical Research Foundation Professor, Department of Laboratory Medicine and Pathology University of Minnesota

Dr. Apple

Dr. Fred Apple, PhD, DABCC
Medical director,Clinical Laboratories, Clinical Chemistry, Clinical and Forensic Toxicology and Point of Care Testing, Hennepin HealthCare
Principal investigator, Minneapolis Medical Research Foundation
Professor, Department of Laboratory Medicine and Pathology
University of Minnesota 

MedicalResearch.com: What is the background for this study?

Response: Few studies have addressed the role of high sensitivity cardiac troponin (hs-cTn) assays in ruling out myocardial infarction (MI) based on the measurement of a single baseline specimen in US patients presenting to the emergency department with symptoms suggestive of ischemia. Most studies have been published predicated on patients in Europe, Australia, and New Zealand. As US emergency departments have different ordering practices for using cTn in triaging patients, it is important to validate the role of hs-cTn assays in US practices to assure providers of appropriate utilization. We have published two papers using the Abbott ARCHITECT hs-cTnI assay, the same one used outside the US in clinical practice (as this assay is not yet FDA cleared) in a US cohort (clinicialtrials.gov trial: UTROPIA – Sandoval Y, Smith SW, Shah ASV, Anand A, Chapman AR, Love SA, Schulz K, Cao J, Mills NL, Apple FS. Rapid rule-out of acute myocardial injury using a single high-sensitivity cardiac troponin I measurement. Clin Chem 2017;63:369-76. Sandoval Y, Smith SW, Love SA,  Sexter A, Schulz K, Apple FS. Single high-sensitivity cardiac troponin I to rule out myocardial infarction. Am J Med 2017;130:1076-1083) that have shown similar rule out capacities predicated on clinical presentation, a normal ECG and the role of hs-cTnI testing.

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Oral Anticoagulant in Chronic Kidney Disease: Benefits and Harms

MedicalResearch.com Interview with:

Sunil Badve MBBS, MD, DNB, FRACP, PhD, FASN Senior Research Fellow, Renal & Metabolic Division Staff specialist nephrologist | St George Hospital University of New South Wales The George Institute for Global Health Australia

Dr. Badve

Sunil Badve MBBS, MD, DNB, FRACP, PhD, FASN
Senior Research Fellow, Renal & Metabolic Division
Staff specialist nephrologist | St George Hospital
University of New South Wales
The George Institute for Global Health
Australia

MedicalResearch.com: What is the background for this study?

Response: Despite the high prevalence of cardiovascular thrombotic events and venous thromboembolism (VTE) in chronic kidney disease (CKD), oral anticoagulant therapy is often underutilized in patients with advanced CKD and dialysis-dependent end-stage kidney disease (ESKD) due to uncertainty of benefit and potential bleeding complications. This comprehensive systematic review was performed to study the benefits and harms of oral anticoagulant therapy in patients with CKD.

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Genetic Variants Linked to Life-threatening Cardiac Arrhythmias in Patients With Dilated Cardiomyopathy and Implanted Defibrillators

MedicalResearch.com Interview with:

Ben Cordon, PhD NIHR Post-doctoral Academic Clinical Fellow Specialist Registrar training in cardiology

Dr. Cordon

Ben Cordon, PhD
NIHR Post-doctoral Academic Clinical Fellow
Specialist Registrar training in cardiology 

James S. Ware, PhD, MRCP  Reader in Genomic Medicine Group head within the Cardiovascular Genetics & Genomics Unit Imperial College London

Dr. Ware

James SWarePhD, MRCP
 Reader in Genomic Medicine
Group head within the Cardiovascular Genetics & Genomics Unit
Imperial College London

 

 

MedicalResearch.com: What is the background for this study?  

Response: Non-ischaemic dilated cardiomyopathy is a common cause of heart failure and carries the risk of life-threatening ventricular arrhythmia. An implantable cardioverter defibrillator (ICD) can be life-saving in this condition. However, the decision to implant an ICD is not one that can be taken lightly – ICD insertion carries its own risks, such as infection or inappropriate shocks, and our ability to predict who will benefit from a device is currently far from perfect. Genetic sequencing is affordable and widely available and for DCM, like many diseases, it is hoped that genetic stratification may one day help deliver personalised management. In DCM, variants in the Lamin A/C gene for example are known to cause a phenotype with early and severe arrhythmias and, as a result, international guidelines advocate a lower threshold for ICD insertion in these patients. However, Lamin A/C is an infrequent cause of DCM. The commonest known genetic cause of DCM are protein-truncating variants in the gene encoding Titin (TTNtv), accounting for ~15% of DCM cases. We wanted to know if this group had a higher risk of arrhythmia than the general DCM population.

Earlier work from our group on this topic found that patients with TTNtv-associated DCM were more likely to have a clinical history of arrhythmia (composite of atrial and ventricular arrhythmia, including NSVT), at the time of their initial DCM diagnosis. But it was unclear if this was driven by ventricular arrhythmia, atrial arrhythmia, or both or if it would translate into a long-term risk of potentially dangerous ventricular arrhythmia of the sort for which an ICD can be life-saving. In another study we analysed a larger cohort of ambulant DCM patients but did not find an increased risk of ventricular arrhythmia – but this was a relatively low-risk group, with comparatively mild symptoms (NHYA I/II heart failure) and moderately impaired LV function. As a result, the overall arrhythmic event rate was low, meaning that the power to detect differences between the TTNtv and non-TTNtv groups was reduced.

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Elevated Systolic Blood Pressure Linked to Increase in Valvular Heart Disease

MedicalResearch.com Interview with:

Prof-Kazem Rahimi

Prof. Rahimi

Dr Kazem Rahimi
Deputy Director of the George Centre for Healthcare Innovation
James Martin Senior Fellow in Essential Healthcare
Honorary Consultant Cardiologist at the John Radcliffe Hospital
Deputy Director of the George Institute for Global Health

MedicalResearch.com: What is the background for this study?

Response: In the last century, we have witnessed a dramatic change in the spectrum of valvular heart disease and the prevalence of this condition has been rapidly increasing, due to population ageing, with poor patient outcomes and high healthcare costs associated with the only effective treatment available, which is valve repair or replacement. However, modifiable risk factors for valvular heart disease remain largely unknown, which limits prevention and treatment. We used a state-of-the-art, gene-based method called Mendelian randomization to determine the causality of the association between systolic blood pressure and risk of valvular heart diseases.  Continue reading

Heart Failure: Low Iron Storage vs Defective Iron Utilization

MedicalResearch.com Interview with:

Dr. Niels Grote Beverborg, MD PhD Post-doctoral research fellow Department of experimental cardiology University Medical Center Groningen, Groningen, The Netherlands Integrated CardioMetabolic Center Karolinska Institutet, Stockholm Sweden

Dr. Grote Beverborg

Dr. Niels Grote Beverborg, MD PhD
Post-doctoral research fellow
Department of experimental cardiology
University Medical Center Groningen,
Groningen, The Netherlands
Integrated CardioMetabolic Center
Karolinska Institutet, Stockholm
Sweden 

MedicalResearch.com: What is the background for this study?  

Response: Iron deficiency is very prevalent worldwide and a significant cause of morbidity and mortality, especially in vulnerable populations such as patients with heart failure. It is well known that iron deficiency can be a consequence of an insufficient iron uptake or increased iron loss (termed low iron storage), or of a chronic low inflammatory state (defective iron utilization). However, so far, we had no tools to distinguish these causes from each other in patients and have not been able to assess their potential consequences.

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What Are the Negative Risk Markers for Cardiovascular Events in the Elderly?

MedicalResearch.com Interview with:

Martin Bødtker Mortensen, læge PhD Afdelingen for Hjertesygdomme Aarhus Universitetshospital Danmark

Dr. Mortensen

Martin Bødtker Mortensen, læge PhD
Afdelingen for Hjertesygdomme
Aarhus Universitetshospital
Danmark 

MedicalResearch.com: What is the background for this study?  

Response: The background for the study is a combination of two things: First, the proportion and number of elderly people 65 years of age or older are increasing fast worldwide. Second, given the dominant impact of age on estimated risk for cardiovascular disease, nearly all elderly individuals eventually become statin eligible under current guidelines – just because of aging alone. Thus, to limit overtreatment of elderly individuals, we wanted to find “negative” risk markers that can be used to identify elderly individuals at truly low cardiovascular risk who are less likely to benefit from statin therapy despite advancing age.

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Non-Invasive Echocardiograms Can Be Overused Leading To Increased Costs

MedicalResearch.com Interview with:

Quinn R Pack, MD Assistant Professor of Medicine at University of Massachusetts Medical School - Baystate Adjunct Assistant Professor of Medicine Tufts University School of Medicine

Dr. Pack

Quinn R Pack, MD
Assistant Professor of Medicine
University of Massachusetts Medical School –
Baystate Adjunct Assistant Professor of Medicine
Tufts University School of Medicine

MedicalResearch.com: What is the background for this study? What are the main findings? 

Response: Because echocardiograms are non-invasive, very low risk, and nearly universally available, it is easy to over-use this technique.  In myocardial infarction, echo is also recommended in guidelines.

However, in our lab, we frequently find echocardiograms that are ordered purely out of routine, without any thought as to the likelihood of finding an abnormality.   Prior studies also suggested that as many as 70% of echocardiograms provide no additional diagnostic value. When spread across the approximate 600,000 patients in the United States each year, this low diagnostic yield represents an opportunity to reduce costs by reducing echocardiograms. 

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TAVR vs Surgical Aortic Valve Replacement Among Low-Risk Patients With Aortic Stenosis

MedicalResearch.com Interview with:

Fausto Biancari, Professor of Surgery, University of Turku, Finland Professor of Cardiothoracic Surgery, University of Oulu, Finland Heart Center, T-Hospital, Hämeentie Turku, Finland

Prof. Biancari

Fausto Biancari, MD, PhD
Professor
University of Turku and University
Oulu, Finland

MedicalResearch.com: What is the background for this study?

Response: Current data is scarce regarding the short- and midterm benefit of transcatheter aortic valve replacement (TAVR) compared to surgical aortic valve replacement (SAVR) in low-risk patients with severe aortic valve stenosis.

MedicalResearch.com: What are the main findings?

Response: In this observational study on 2841 low-risk patients with aortic valve stenosis from the Finnish nationwide FinnValve registry, propensity score matching analysis showed similar 30-day and three-year survival after TAVR and SAVR.

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Aspirin for Primary Prevention of Cardiovascular Events

MedicalResearch.com Interview with:

J.L. Mehta, MD, PhD Distinguished Professor of Medicine and Physiology and Biophysics Stebbins Chair in Cardiology University of Arkansas for Medical Sciences Central Arkansas Veterans Healthcare System Little Rock, AR 72205

Dr. Mehta

J.L. Mehta, MD, PhD

Distinguished Professor of Medicine and Physiology and Biophysics

Stebbins Chair in Cardiology

University of Arkansas for Medical Sciences

Central Arkansas Veterans Healthcare System

Little Rock, AR 72205

MedicalResearch.com: What is the background for this study? What are the main findings? 

Response: Aspirin is commonly used for primary prevention of cardiovascular disease events in a variety of subjects around the world. Recent studies, however, show that routine use of aspirin without assessment of risk for cardiovascular disease events may not be appropriate, and may even be harmful.  Continue reading

Updated Expert Consensus Statement on Platelet Function/Genetic Testing for Guiding P2Y12 Receptor-Inhibitor Treatment in PCI

MedicalResearch.com Interview with:

Prof. Dr. med. Dirk Sibbing, MHBA, FESC Oberarzt, Medizinische Klinik und Poliklinik I Ludwig-Maximilians-Universität (LMU) München Chairperson ESC Working Group on Thrombosis München, Germany

Prof. Sibbing

Prof. Dr. med. Dirk Sibbing, MHBA, FESC
Oberarzt, Medizinische Klinik und Poliklinik I
Ludwig-Maximilians-Universität (LMU) München
Chairperson ESC Working Group on Thrombosis
München, Germany 

MedicalResearch.com: What is the background for this consensus statement? What are the main findings that led to these conclusions?

Response: The availability of different P2Y12 receptor inhibitors (clopidogrel, prasugrel, ticagrelor) with varying levels of potency has enabled physicians to contemplate individualized treatment concepts. Such concepts may include escalation or de-escalation of P2Y12 inhibiting therapy.

Alternative DAPT strategies may be chosen according to the clinical setting (stable coronary artery disease vs. acute coronary syndrome), the stage of the disease (early vs. chronic treatment) and patient risk for ischemic and bleeding complications. As always in clinical medicine, guidance by means of biomarkers or risk scores is always helpful and warranted. Here specifically, a tailored DAPT approach may be potentially guided by platelet function (PFT) or genetic testing. Continue reading

Cardiac Radiation Can Increase Mortality in Lung Cancer Patients

MedicalResearch.com Interview with:

Raymond H Mak, MD Assistant Professor of Radiation Oncology Harvard Medical School

Dr. Mak

 

Raymond H Mak, MD
Assistant Professor of Radiation Oncology
Harvard Medical School
Radiation Oncology
Brigham and Women’s Hospital

 

 

Dr-Katelyn M. Atkins

Dr. Atkins

 

Katelyn M. Atkins MD PhD
Harvard Radiation Oncology Program
Dana-Farber Cancer Institute
Brigham and Women’s Hospital
Boston, Massachusetts

 

 

MedicalResearch.com: What is the background for this study? What are the main findings? 

  • Lung cancer remains the leading cause of cancer-related death worldwide and nearly half of patients will require radiation therapy as part of their care.
  • Cardiac toxicity following radiotherapy has been well-studied in breast cancer and lymphomas, however the impact of cardiac toxicity following lung cancer radiotherapy has historically been under-appreciated due to the high risk of lung cancer death.
  • Recent studies highlighting cardiac toxicity following lung cancer radiotherapy have been limited by small numbers of patients and, to our best knowledge, have not included validated cardiac event endpoints defined by the American Heart Association (AHA)/American College of Cardiology (ACC).

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Medicaid Expansion Linked to Reduced Deaths from Heart Disease

MedicalResearch.com Interview with:

Sameed Khatana, MD, MPH Fellow, Cardiovascular Medicine, Perleman School of Medicine Associate Fellow, Leonard Davis Institute of Health Economics University of Pennsylvania

Dr. Khatana

Sameed Khatana, MD, MPH
Fellow, Cardiovascular Medicine, Perleman School of Medicine
Associate Fellow,
Leonard Davis Institute of Health Economics
University of Pennsylvania 

MedicalResearch.com: What is the background for this study?  

Response: The Affordable Care Act (ACA) led to the largest increase in Medicaid coverage since the beginning of the program. However, a number of states decided not to expand eligibility. Studies of prior smaller expansions in Medicaid, such as in individual states, have suggested evidence of improved outcomes associated with Medicaid expansion. Additionally, studies of Medicaid expansion under the ACA of certain health measures such as access to preventive care and medication adherence have suggested some improvements as well. However, there have been no large, population-level studies to examine whether Medicaid expansion under the ACA led to changes in mortality rates. Given, a high burden of cardiovascular risk factors in the uninsured, we examined whether states that had expanded Medicaid had a change in cardiovascular mortality rates after expansion, compared to states that have not expanded Medicaid.

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Eggs Should Be Eaten In Moderation – Higher Intake Linked to Increased Mortality

MedicalResearch.com Interview with:

Prof. Katherine Tucker PhD Director of the Center for Population Health Zuckerberg College of Health Sciences Lowell’s Biomedical and Nutritional Sciences UMass

Dr. Tucker

Prof. Katherine Tucker PhD
Director of the Center for Population Health
Zuckerberg College of Health Sciences
Lowell’s Biomedical and Nutritional Sciences
UMass

MedicalResearch.com: What is the background for this study? 

Response: Cholesterol was excluded from the recent dietary guidelines, but research remains unclear about eggs and cholesterol on health.

MedicalResearch.com: What are the main findings? Why is the advice about the benefits/harms regarding egg intake often so conflicting?

Response: Higher egg intake and cholesterol intake were related to increased risk of mortality. Individual observational studies can be confusing as the overall results depend on the baseline intake of the population and adjustment for confounders.  

MedicalResearch.com: What should readers take away from your report?

Response: Balance and moderation is the key. Complete avoidance of eggs and egg yolks is not recommended because they have healthy nutrients as well. Extremely high intake of any single food may lead to imbalances. 3-4 eggs a week appears healthy but intakes of multiple eggs/day are probably not a good idea.  

MedicalResearch.com: What recommendations do you have for future research as a result of this work?

Response: We need to clarify what exactly it is about too many eggs that is causing the risk. Healthy metabolism depends on a complex interaction of nutrients.

No disclosures 

Citation:

Zhong VW, Van Horn L, Cornelis MC, et al. Associations of Dietary Cholesterol or Egg Consumption With Incident Cardiovascular Disease and Mortality. JAMA. 2019;321(11):1081–1095. doi:10.1001/jama.2019.1572

https://jamanetwork.com/journals/jama/article-abstract/2728487 

[last-modified] 

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Atrial Fibrillation Common After TAVR and Aortic Valve Replacement

MedicalResearch.com Interview with:
Rajat Kalra, MBCh
Cardiovascular Division
University of Minnesota, Minneapolis

MedicalResearch.com: What is the background for this study?

Response: New-onset atrial fibrillation after aortic valve procedures is thought to occur frequently after aortic valve procedures, such as transcatheter aortic valve implantation (TAVI) and surgical aortic valve replacement (AVR). However, the incidence estimates and implications of this new-onset atrial fibrillation in the contemporary era are unclear.

We sought to examine the incidence of atrial fibrillation after aortic valve procedures, compare the incidence between TAVI and AVR, and evaluate the associated morbidity and mortality implications using a ‘big data’ approach. This big data approach employed the National Inpatient Sample and was validated in the New York State Inpatient Database. Both are publicly available datasets that are developed as part of the Healthcare Cost and Utilization Project, a federal-state-industry partnership that is sponsored by the Agency for Healthcare Research and Quality.  Continue reading

Proton-pump inhibitors (PPIs) Linked to Increased Risk of Death

MedicalResearch.com Interview with:

Ziyad Al-Aly, MD, FASNAssistant Professor of MedicineDirector of the Clinical Epidemiology CenterChief of Research and EducationDepartment of Veterans Affairs Health Care SystemSaint Louis

Dr. Ziyad Al-Aly

Ziyad Al-Aly, MD, FASN
Assistant Professor of Medicine
Director of the Clinical Epidemiology Center
Chief of Research and Education
Department of Veterans Affairs Health Care System
Saint Louis 

MedicalResearch.com: What is the background for this study?  

Response: In 2017, we published a paper showing increased risk of death associated with Proton-pump inhibitors (PPI) use. Following the publication of that 2017 paper, several key stakeholders including patients, doctors, research scientists, medical media folks, mainstream media folks, and others asked us: what do these people die from? Did you study causes of death attributable to PPI use? In the study published today, we developed a causal inference framework to answer this question.

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Glucosamine Supplements Might Reduce Cardiovascular Risk

MedicalResearch.com Interview with:

Lu Qi, MD, PhD, FAHA HCA Regents Distinguished Chair and Professor Director, Tulane University Obesity Research Center Department of Epidemiology Tulane University School of Public Health and Tropical Medicine New Orleans, LA 70112

Dr. Lu Qi

Lu Qi, MD, PhD, FAHA MD, PhD, FAHA
HCA Regents Distinguished Chair and Professor
Director, Tulane University Obesity Research Center
Department of Epidemiology
Tulane University
School of Public Health and Tropical Medicine
New Orleans, LA 70112 

MedicalResearch.com: What is the background for this study?

Response: There is evidence from previous experimental studies or cross-sectional analyses in humans linking glucosamine and a variety potentially protective effects such as improving lipids, inhibiting inflammation, and mimic a low-carb diet.   Continue reading

Does Genetic Information Encourage Doctors to Switch Anticoagulation Medications?

MedicalResearch.com Interview with:

Thomas J. Povsic, MD, PhDInterventional CardiologistDuke Clinical Research InstituteDuke University School of MedicineDurham, North Carolina 

Dr. Povsic

Thomas J. Povsic, MD, PhD
Interventional Cardiologist
Duke Clinical Research Institute
Duke University School of Medicine
Durham, North Carolina 

MedicalResearch.com: What is the background for this study? 

Response: The background for this study is that it is unknown how mandatory reporting of CYP2C19 metabolizer status affects how doctors treat patients or to what degree provision of this information would affect choice of a P2Y12 inhibitor within a clinical trial.

As part of the GEMINI-ACS trial, all patients underwent CYP2C19 metabolizer testing.  This trial enrolled patients with a recent acute coronary syndrome and randomized them to aspirin or a low dose of rivaroxaban.  All patients were also to be treated with ticagrelor or clopidogrel, which was at the discretion of the investigator.  Investigators were given information regarding the CYP2C19 metabolizer status about a week after randomization.  Importantly prior to randomization, all investigators were asked how they expected to use this information, and then we followed what they actually did.

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Silent Heart Attack Associated with Increased Risk of Embolic Stroke

MedicalResearch.com Interview with:

Lenore J. Launer, PhD.Chief Neuroepidemiology Section Intramural Research ProgramNational Institute on Aging

Dr. Launer

Lenore J. Launer, PhD.
Chief Neuroepidemiology Section Intramural Research Program
National Institute on Aging

MedicalResearch.com: What is the background for this study? What are the main findings?

Response: The prevalence of cerebral infarction on MRI can be as high as 30% in community-based studies. These lesions detected on brain MRI, are often clinically silent, but are associated with impairments in cognitive and physical function and can increase the risk for clinical events. For a large number, the origin of these brain lesions is unknown. There is also a lack of population-based data on unrecognized myocardial infarction, which is associated with an increased for clinical coronary disease and mortality.

Unrecognized MI was detected in 17% of participants using state-of-the-art cardia MRI, a more sensitive measure of the lesions, than the standard ECG. We investigated the contribution to these lesions of recognized and unrecognized myocardial infarction [MI] identified on cardiac MRI.

We found both recognized and unrecognized myocardial infarction increased the risk for cerebral infarction, and that in particular unrecognized MI was associated with cerebral infarction of embolic origins of an unknown source. Given their prevalence, unrecognized MI may be an underestimated contributor to the risk for cerebral infarction in older persons.  Continue reading

Mortality Rate Increases With Each Sugary Drink

MedicalResearch.com Interview with:
Jean A. Welsh, RN, MPH, PhD
Departments of Epidemiology and Pediatrics
Emory University
Wellness Department, Children’s Healthcare of Atlanta
Atlanta, Georgia

MedicalResearch.com: What is the background for this study?

Response: As the evidence has accumulated regarding the health risks associated with sugar-sweetened beverages, I’ve wondered about fruit juices.  Though they have a kind of healthy halo, their main ingredients are the same as sugar-sweetened beverages, sugar and water.  We know that young children drink a lot of fruit juice, and I’ve wondered if older children and adults might switch to drinking more as concern grows about soft drinks and other sugar-sweetened beverages.

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Grapefruit Juice Can Cause an EKG Change, Prolonged Q-T Interval, Aggravated by Some Medications

MedicalResearch.com Interview with:

Electrocardiogram showing QT interval calculated by tangent method Wikipedia image

Electrocardiogram showing QT interval calculated by tangent method – Wikipedia image

Sami Viskin MD
Tel-Aviv Medical Cente
Sackler School of Medicine
Tel-Aviv University, Israel.

MedicalResearch.com: What is the background for this study? What are the main findings? 

Response: There are >200 medications with reported QT-prolonging risk. The majority of these medications do not even have cardiac indications, yet cause unintended QT-prolongation because they block IKr potassium channels in myocardial cells. With so many drugs, of such varied composition, blocking the IKr channel, it is reasonable to assume that food compounds also have IKr-channel-blocker properties, raising the possibility that proarrhythmic food exists.

We tested the effects of grapefruit on the QT interval with the rigorous methodology used by the pharmaceutical industry to test new medications before they are released to the market.

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Caffeine and Heart Disease: Is There a Right Amount of Daily Coffee?

MedicalResearch.com Interview with:
Professor Elina Hypponen
Professor in Nutritional and Genetic Epidemiology
Director: Australian Centre for Precision Health
 Australian Centre for Precision Health|
University of South Australia Cancer Research Institute |
South Australian Health & Medical Research Institute 

MedicalResearch.com: What is the background for this study?

Response: In Randomised controlled trials caffeine, which is a key constituent of coffee, has been shown to increase blood pressure. There is also some past evidence to suggest that higher coffee consumption may increase the risk of cardiovascular disease, but only in individuals who are slow caffeine metabolisers.

We used information from about 350,000 individuals from the UK, to look at the association between patterns of  habitual of coffee consumption and the subsequent risk of cardiovascular disease. As we also know that people are genetically different with respect to their ability to metabolise caffeine, a further aim for our study was to look at whether those people who are able to metabolise caffeine effectively, may also be more resistant to possible cardiovascular effects of coffee, compared to those who metabolise caffeine more slowly.  Continue reading

COPD: Aclidinium Bromide (Tudorza Pressair) Has Favorable Safety Profile in Patients with CVD

MedicalResearch.com Interview with:

Robert A. Wise, M.D.Professor of MedicinePulmonary and Critical CareJohns Hopkins University School of MedicineBaltimore, MD 

Dr. Wise

Robert A. Wise, M.D.
Professor of Medicine
Pulmonary and Critical Care
Johns Hopkins University School of Medicine
Baltimore, MD

MedicalResearch.com: What is the background for this study? What are the main findings?

Response: There has been a lingering controversy about the safety of long-acting anti-muscarinic agents (LAMA) as maintenance treatment for COPD in patients who have increased cardiovascular risk.  This study enrolled participants with COPD who also had increased cardiovascular risk or known cardiovascular disease.  Participants were randomly treated with either aclidinium bromide (Tudorza Pressair) or placebo.

Over 3 years of follow up there was no increased risk of adverse cardiovascular events.  Moreover, the medication had a significant benefit in terms of reducing exacerbations and COPD hospitalizations. Continue reading

Higher Risk of Cardiovascular Disease Linked to Long Term Antibiotic Use in Women

MedicalResearch.com Interview with:
Dr. Lu Qi MD PhD
Department of Epidemiology, School of Public Health and Tropical Medicine
Tulane University New Orleans, LA 70112
Department of Nutrition, Harvard T.H. Chan School of Public Health,
Channing Division of Network Medicine, Department of Medicine, Brigham and Women’s Hospital and Harvard Medical School
Boston, MA 02115

Yoriko Heianza RD, PhD
Department of Epidemiology, School of Public Health and Tropical Medicine,
Tulane University
New Orleans, LA 

MedicalResearch.com: What is the background for this study? What are the main findings? 

Response: Growing data suggest that antibiotic exposure is associated with a long-lasting alteration in gut microbiota, and may be related to subsequent cardiovascular disease (CVD). We investigated associations of duration of antibiotic use in different phases of adulthood (young, middle and late adulthood) with the CVD incidence among women at usual risk.

This new analysis from the Nurses’ Health Study shows that women who take antibiotics for long periods, especially during more recent adulthood (such as  in middle- and late adulthood) had a higher risk of CVD in later life.  Continue reading

Elevated PCBs Associated with Increased Risk of Cardiovascular Disease

MedicalResearch.com Interview with:

Monica Lind, PhD, Professor, Environmental toxicologistOccupational and Environmental MedicineUppsala University HospitalVisiting adress: Dag Hammarskjölds väg 60Uppsala Sweden 

Dr. Lind

Monica Lind, PhD,
Professor, Environmental toxicologist
Occupational and Environmental Medicine
Uppsala University Hospital
Visiting adress: Dag Hammarskjölds väg 60
Uppsala Sweden

MedicalResearch.com: What is the background for this study?

Response: Previous studies in workers exposed to very high levels of polychlorinated biphenyls (PCBs) have suggested hazardous health effects. However, circulating PCB levels are detected in almost all indivuduals in industrialized countries, but the health effects of moderately elevated levels as seen in the general population are not well established.

We investigated levels of PCBs in around 1,000 individuals, all aged 70 years, randomly chosen from the City of Uppsala, Sweden.

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Genetic Studies Can Help Determine How Low LDL Should Go With Treatment

Florian Kronenberg

Dr. Kronenberg

MedicalResearch.com Interview with:
Florian Kronenberg, MD
Division of Genetic Epidemiology
Department of Medical Genetics, Molecular and Clinical Pharmacology
Medical University of Innsbruck, Innsbruck, Austria

MedicalResearch.com: What is the background for this study?

Response: Lp(a) is one of the most prevalent lipoprotein risk factors for cardiovascular disease. Roughly 20% of the general Caucasian population have concentrations above 50 mg/dL and the 10% with the highest concentrations have a 2 to 3-fold increased risk for myocardial infarction.

There is strong evidence from genetic studies that high Lp(a) concentrations are causally related to cardiovascular outcomes. Until recently there was no drug available which lowers Lp(a) without any effects on other lipoproteins. This has recently changed by the development of drugs that block the production of Lp(a) in an impressive way. These drugs have to be studied in randomized controlled trials whether they not only lower Lp(a) concentrations but also cardiovascular outcomes. For the planning of such studies it is crucial to estimate the amount of Lp(a) lowering required to show a clinical benefit.

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It’s Not Just Avoiding Red Meat, It’s the Substitute Diet That Influences Heart Health

MedicalResearch.com Interview with:

Marta Guasch-Ferre, PhD Research Scientist, Dept of Nutrition, Harvard TH Chan School of Public Health Instructor of Medicine, Channing Division of Network Medicine, Harvard Medical School Boston, MA, 02115

Dr. Guasch-Ferré

Marta Guasch-Ferre, PhD
Research Scientist, Dept of Nutrition
Harvard TH Chan School of Public Health
Instructor of Medicine, Channing Division of Network Medicin
Harvard Medical School
Boston, MA, 02115
 

MedicalResearch.com: What is the background for this study? What are the main findings? 

Response: Previous findings from randomized controlled trials evaluating the effects of red meat on cardiovascular disease risk factors have been inconsistent.

But our new study, which makes specific comparisons between diets high in red meat versus diets high in other types of foods, shows that substituting red meat with high-quality protein sources lead to more favorable changes in cardiovascular risk factors. That is, to properly understand the health effects of red meat, it’s important to pay attention to the comparison diet. People do not simply eat more or less meat – it will almost always be in substitution with other foods. 

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Stroke: Experimental Antiplatelet Antibody Only Attacks Clots, Without Increasing Bleeding Risk

MedicalResearch.com Interview with:

MedicalResearch.com Interview with:Martine Jandrot-Perrus MD, PhD.Emeritus Research ProfessorInserm University Paris DiderotActicor BiotechHôpital BichatFrance

Dr. Jandrot-Perrus


Martine Jandrot-Perrus MD, PhD.
Emeritus Research Professor
Inserm University Paris Diderot
Acticor Biotech
Hôpital Bichat
France 

MedicalResearch.com: What is the background for this study? What are the main findings?

Response: Blood platelets are key actors in thrombosis a leading cause of global mortality estimated to account for 1 in 4 death worldwide in 2010.

Thrombosis is associated with cardiovascular diseases (myocardial infarction, stroke, lower limb ischemia, venous thromboembolism), and with numerous pathologies such as cancer, infections or inflammatory diseases. Currently available antiplatelet drugs are the cornerstone of therapy for patients with acute coronary syndromes. However, these drugs all carry an inherent risk of bleeding that restricts their use in sensitive populations and when arterial thrombosis occurs in the cerebral territory. At present the only acute treatment option available for ischemic stroke consists in revascularization by thrombolysis, and/or mechanical thrombectomy. But the number of patients eligible to these treatments is low (» 15% of all patients) and the success rate does not exceed 50%. The responsibility of platelets in the failure for thrombolysis / thrombectomy to restore vascular patency is strongly suspected.

There is thus a clear medical need for new antiplatelet drugs with an improved safety profile. We set out to develop ACT017, a novel, first in class, therapeutic antibody to platelet glycoprotein VI with potent and selective antiplatelet effects. The interest of GPVI resides in the fact that it’s a receptor involved in the development of occlusive thrombi but that it is not strictly required for physiological hemostasis.
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Is Immediate Cardioversion Necessary in New Onset Atrial Fibrillation?

MedicalResearch.com Interview with:

Atrial Fibrillation  Wikipedia example

Atrial Fibrillation
Wikipedia example

Harry J.G.M Crijns, MD, PhD
University Hospital Maastricht
Maastricht, The Netherlands

MedicalResearch.com: What is the background for this study? What are the main findings? 

Response: An episode of the heart rhythm disorder ‘atrial fibrillation’ is a frequent reason for a visit to the Emergency Department. Patients commonly undergo a cardioversion to restore sinus rhythm – either electrical or pharmacological. However, it is known that episodes of atrial fibrillation frequently terminate spontaneously. Therefore, we conducted a multicenter randomized clinical trial in the Netherlands, researching whether a wait-and-see approach – consisting of heart rate slowing drugs and cardioversion only if the heart rhythm does not resolve spontaneously – was non-inferior to the current standard of care of immediate cardioversion.

The primary end point was the presence of sinus rhythm on the ECG at the 4 weeks visit, which was present in 91% in the wait-and-see approach and 94% in the standard of care, which was within the non-inferiority margin.

In the wait-and-see approach, 69% of patients returned to sinus rhythm spontaneously, i.e. without cardioversion. Complications were rare and comparable in both treatment arms, and the percentage of patients experiencing a recurrence of atrial fibrillation during the first 4 weeks after the index visit was comparable (30% vs 29% respectively). We concluded that in patients presenting to the emergency department with recent-onset, symptomatic atrial fibrillation, a wait-and-see approach was non-inferior to early cardioversion in achieving a return to sinus rhythm at 4 weeks.

MedicalResearch.com: What should readers take away from your report?

Response: Recent-onset symptomatic atrial fibrillation usually terminates spontaneously and therefore an acute cardioversion is not always necessary, as a wait-and-see approach is equally effective and safe. Quality of life is the same in both treatment options. Physicians should discuss with their patients which one of the two approaches – wait-and-see or immediate cardioversion – would be more suitable in their situation. 

MedicalResearch.com: What recommendations do you have for future research as a result of this work? 

Response: Now that we have shown that early, i.e. immediate cardioversion may not be necessary, we are planning future studies on how to implement a delayed cardioversion into daily practice.

MedicalResearch.com: Is there anything else you would like to add?

Response: Funding for this trial was provided by the Netherlands Organization for Health Research and Development, and Boehringer Ingelheim. 

Citation:

 

 Early or Delayed Cardioversion in Recent-Onset Atrial Fibrillation
Nikki A.H.A. Pluymaekers, M.D., Elton A.M.P. Dudink, M.D., Ph.D., Justin G.L.M. Luermans, M.D., Ph.D., Joan G. Meeder, M.D., Ph.D., Timo Lenderink, M.D., Ph.D.,
Jos Widdershoven, M.D., Ph.D., Jeroen J.J. Bucx, M.D., Ph.D.,
Michiel Rienstra, M.D., Ph.D., Otto Kamp, M.D., Ph.D.,

Jurren M. Van Opstal, M.D., Ph.D., Marco Alings, M.D., Ph.D.,
Anton Oomen, M.D., and Harry J.G.M. Crijns, M.D., Ph.D
et al., for the RACE 7 ACWAS Investigators*

March 18, 2019
DOI: 10.1056/NEJMoa1900353

 

 

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Suboptimal Physical Activity in Women Associated With Increased Healthcare Spending

MedicalResearch.com Interview with:
Erin D. Michos, MD, MHS, FACC, FAHA, FASE
Associate Professor of Medicine and Epidemiology
Associate Director of Preventive Cardiology
Ciccarone Center for the Prevention of Heart Disease
Johns Hopkins School of Medicine

Victor Okunrintemi, MD, MPH
Department of Internal Medicine
East Carolina University
Greenville, North Carolina 

MedicalResearch.com: What is the background for this study?  

Response: Women are less physically active than men on average, and the lack of regular physical activity has been associated with increased risk of cardiovascular disease and poorer health outcomes. Although recommendations encouraging regular physical activity has been in place for decades, we do not know how much of these recommendations are met, particularly among high risk women with established cardiovascular disease for secondary prevention.

This study was therefore designed with the aim of describing the 10-year trends for the proportion of women with cardiovascular disease who do not meet these recommend physical activity levels, overall and by key sociodemographic groups, and the associated cost implications.

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Stress from Traumatic Events Linked to Increased Risk of Heart Disease

MedicalResearch.com Interview with:

Huan Song Associated Department of Medical Epidemiology and Biostatistics Karolinska Institutet

Huan Song

Huan Song, PhD
Center of Public Health Sciences, Faculty of Medicine,
University of Iceland, Reykjavík, Iceland
Department of Medical Epidemiology and Biostatistics
Karolinska Institutet, Stockholm, Sweden

MedicalResearch.com: What is the background for this study?  

Response: Cardiovascular disease (CVD) presents a group of diseases that are common and sometimes fatal in general population. The possible role of stress-related disorders in the development of CVD has been reported. However, the main body of the preceding evidence was derived from male samples (veterans or active-duty military personnel) focusing mainly on posttraumatic stress disorder (PTSD) or self-reported PTSD symptoms. Data on the role of stress-related disorders in CVD in women were, until now, limited. Although incomplete control for familial factors and co-occurring psychiatric disorder, as well as the sample size restriction, limit the solid inference on this association, especially for subtypes of CVD.

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