Publications by authors named "Brian Bergmark"

Background: Epistaxis is common with antithrombotic therapy and is often troublesome to patients, yet its frequency, severity, and outcomes are poorly characterized.

Methods And Results: Effective Anticoagulation with Factor Xa Next Generation in Atrial Fibrillation-Thrombolysis in Myocardial Infarction 48 (ENGAGE AF-TIMI 48) randomized 21 105 patients with atrial fibrillation and CHADS2 risk score ≥2 to higher-dose edoxaban regimen (60 mg daily, dose-reduced to 30 mg), lower-dose edoxaban regimen (30 mg, dose reduced to 15 mg, daily), or warfarin. Bleeds were adjudicated using International Society on Thrombosis and Haemostasis criteria.

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Background: Coronary artery disease is the most common form of cardiovascular disease. It is caused by excess plaque along the arterial wall, blocking blood flow to the heart (stenosis). A percutaneous coronary intervention widens the arterial wall with the inflation of a balloon inside the lesion area and leaves behind a metal stent to prevent re-narrowing of the artery (restenosis).

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Article Synopsis
  • A study called PEERLESS compared two catheter methods, large-bore mechanical thrombectomy (LBMT) and catheter-directed thrombolysis (CDT), for treating intermediate-risk pulmonary embolism (PE) in 550 patients, focusing on various health outcomes.
  • The results showed that LBMT led to fewer complications and less need for intensive care compared to CDT, including lower rates of clinical deterioration and ICU admissions.
  • Although LBMT had better short-term outcomes, there were no significant differences in mortality or major bleeding between the two treatment methods after 30 days.
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Background: Long-term outcomes after percutaneous coronary intervention (PCI) for in-stent restenosis (ISR) are poor, yet limited granular procedural data exist evaluating lesion assessment, vessel treatment, and acute procedural outcomes.

Methods: The LightLab Initiative was a multicenter, prospective, observational study with contemporaneous procedural data collection during PCI procedures. Data were collected during PCIs performed by 48 interventional cardiologists at 17 US hospitals (2019-2021).

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Background: Cardiovascular trials often use a composite end point and a time-to-first event model. We sought to compare edoxaban versus warfarin using the win ratio, which offers data complementary to time-to-first event analysis, emphasizing the most severe clinical events.

Methods: ENGAGE AF-TIMI 48 (Effective Anticoagulation With Factor Xa Next Generation in Atrial Fibrillation-Thrombolysis in Myocardial Infarction 48) was a double-blind, randomized trial in which patients with atrial fibrillation were assigned 1:1:1 to a higher dose edoxaban regimen (60/30 mg daily), a lower dose edoxaban regimen (30/15 mg daily), or warfarin.

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Background: Reducing the levels of triglycerides and triglyceride-rich lipoproteins remains an unmet clinical need. Olezarsen is an antisense oligonucleotide targeting messenger RNA for apolipoprotein C-III (APOC3), a genetically validated target for triglyceride lowering.

Methods: In this phase 2b, randomized, controlled trial, we assigned adults either with moderate hypertriglyceridemia (triglyceride level, 150 to 499 mg per deciliter) and elevated cardiovascular risk or with severe hypertriglyceridemia (triglyceride level, ≥500 mg per deciliter) in a 1:1 ratio to either a 50-mg or 80-mg cohort.

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Article Synopsis
  • Effective management of acute myocardial infarction (AMI) after oncologic neurosurgery involves careful balancing of heart risks and bleeding complications.
  • There's a lack of solid human studies to determine the best time to start antiplatelet or anticoagulant therapy post-surgery.
  • For cancer patients with AMI after surgery, a staged approach to percutaneous coronary intervention (PCI) may help preserve heart function while reducing bleeding risks, supported by genetic testing for platelet response.
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Anatomy is critical in risk stratification and therapeutic decision making in coronary disease. The relationship between anatomy and outcomes is not well described in PAD. We sought to develop an angiographic core lab within the VOYAGER-PAD trial.

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Aims: Remnant cholesterol and very low-density lipoprotein cholesterol (VLDL-C) are increasingly recognized risk factors for atherosclerotic disease with few therapeutic options. Angiopoietin-like 3 (ANGPTL3), a key protein in the metabolism of triglyceride-rich lipoproteins, is a promising target.

Methods And Results: TRANSLATE-TIMI 70 was a double-blind, placebo-controlled randomized trial testing seven dose regimens of vupanorsen, an antisense oligonucleotide against ANGPTL3, in adults with non-HDL-C ≥ 100 mg/dL and triglycerides 150-500 mg/dL.

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Background: Diabetes may be associated with differential outcomes in patients undergoing left main coronary revascularization with percutaneous coronary intervention (PCI) or coronary artery bypass grafting (CABG). The aim of this study was to investigate outcomes in patients with left main disease with and without diabetes randomized to PCI versus CABG.

Methods: Individual patient data were pooled from 4 trials (SYNTAX [Synergy Between PCI With Taxus and Cardiac Surgery], PRECOMBAT [Premier of Randomized Comparison of Bypass Surgery Versus Angioplasty Using Sirolimus-Eluting Stent in Patients With Left Main Coronary Artery Disease], NOBLE [Nordic-Baltic-British Left Main Revascularisation Study], and EXCEL [Evaluation of XIENCE Versus Coronary Artery Bypass Surgery for Effectiveness of Left Main Revascularization]) that randomized patients with left main disease to PCI or CABG.

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  • A study was conducted to develop a polygenic risk score (PRS) specifically for aortic stenosis and compare its effectiveness against traditional clinical risk factors.
  • This research involved analyzing data from large cohorts, including over 135,000 participants from the Million Veteran Program and various clinical trials between 2011 and 2020.
  • The findings indicated that the new aortic stenosis PRS, which utilized millions of genetic variants, may provide significant risk estimation for the condition compared to established clinical methods.
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Background: Angiopoietin-like protein 3 (ANGPTL3) is a novel therapeutic target for hyperlipidemia. Vupanorsen, an antisense oligonucleotide targeting ANGPTL3, reduced triglycerides up to 57% in a phase 2b trial, but caused dose-dependent increases in hepatic fat fraction (HFF).

Objective: To determine the degree of HFF progression with escalating doses of vupanorsen, differential HFF increases in key patient subgroups, and the correlation between changes in HFF and liver enzymes.

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Article Synopsis
  • Recent trials indicate that early coronary angiography (CAG) doesn't improve survival outcomes compared to delayed CAG in patients with out-of-hospital cardiac arrest (OHCA) without ST elevation, although the effects on specific subgroups are still uncertain.
  • An analysis of 1,512 patients from five trials showed no significant difference in overall death rates between early and delayed CAG strategies, regardless of factors like age and prior heart issues.
  • Interestingly, women appeared to have higher odds of death with early CAG, suggesting that gender may influence outcomes in this context.
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Importance: Patients with left main coronary artery disease presenting with an acute coronary syndrome (ACS) represent a high-risk and understudied subgroup of patients with atherosclerosis.

Objective: To assess clinical outcomes after PCI vs CABG in patients with left main disease with vs without ACS.

Design, Setting, And Participants: Data were pooled from 4 trials comparing PCI with drug-eluting stents vs CABG in patients with left main disease who were considered equally suitable candidates for either strategy (SYNTAX, PRECOMBAT, NOBLE, and EXCEL).

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Objectives: The study describes the evolution of optical coherence tomography (OCT) adoption and performance during percutaneous coronary intervention (PCI) following implementation of a standardized LightLab (LL) workflow.

Background: The purpose of the LL Clinical Initiative was to evaluate the impact of a standardized workflow on physician efficiency, decision making, and image quality.

Methods: The LL Clinical Initiative is a multicenter, prospective, observational clinical program.

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  • The study examined the use of intravascular ultrasound (IVUS) and optical coherence tomography (OCT) during percutaneous coronary interventions (PCI) using Medicare claims data from 2015 to 2020.
  • Results indicated that IVUS and OCT were infrequently used in PCIs—92% used angiography alone, while IVUS and OCT were used in 7.5% and 0.3% of cases, respectively.
  • Compared to angiography alone, both IVUS and OCT were associated with lower rates of major adverse cardiovascular events over three years, with OCT showing a more significant reduction in risks.
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Background: Use of intracoronary imaging is associated with improved outcomes in patients undergoing percutaneous coronary intervention (PCI). Yet, the impact of intracoronary imaging on real-time physician decision-making during PCI is not fully known.

Methods: The LightLab Initiative is a multicenter, prospective, observational study designed to characterize the use of a standardized optical coherence tomography (OCT) workflow during PCI.

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Background: High-density lipoprotein plays a key role in reverse cholesterol transport. In addition, high-density lipoprotein particles may be cardioprotective and reduce infarct size in the setting of myocardial injury. Lecithin-cholesterol acyltransferase is a rate-limiting enzyme in reverse cholesterol transport.

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Background: Biomarkers are known to predict major adverse cardiovascular events. However, the association of biomarkers with complex coronary revascularization procedures or high-risk coronary anatomy at the time of revascularization is not understood.

Objectives: We examined the associations between baseline biomarkers and major coronary events (MCE) and complex revascularization procedures.

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Pulmonary embolism (PE) is common, life-threatening, and often recurrent among survivors. The clinical manifestations of PE range from incidental detection to sudden death, with approximately one-third of PE deaths occurring suddenly. State-of-the-art management of acute PE relies on early detection, risk stratification based on clinical, imaging, and biomarker criteria, and multidisciplinary decision-making.

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True trifurcation disease in left main coronary artery is an infrequent but highly complex substrate for percutaneous coronary intervention. Evidence for optimal stenting strategy for such anatomy is lacking. We describe a novel three-stent strategy using a combination of double-kissing crush (DK crush) and Culotte techniques in three patients.

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Background: Genetic loss-of-function variants in are associated with lower levels of plasma lipids. Vupanorsen is a hepatically targeted antisense oligonucleotide that inhibits Angiopoietin-like 3 (ANGPTL3) protein synthesis.

Methods: Adults with non-high-density lipoprotein cholesterol (non-HDL-C) ≥100 mg/dL and triglycerides 150 to 500 mg/dL on statin therapy were randomized in a double-blind fashion to placebo or 1 of 7 vupanorsen dose regimens (80, 120, or 160 mg SC every 4 weeks, or 60, 80, 120, or 160 mg SC every 2 weeks).

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Although substantial progress has been made in the diagnosis and treatment of acute coronary syndromes, cardiovascular disease remains the leading cause of death globally, with nearly half of these deaths due to ischaemic heart disease. The broadening availability of high-sensitivity troponin assays has allowed for rapid rule-out algorithms in patients with suspected non-ST-segment elevated myocardial infarction (NSTEMI). Dual antiplatelet therapy is recommended for 12 months following an acute coronary syndrome in most patients, and additional secondary prevention measures including intensive lipid-lowering therapy (LDL-C <1·4 mmol/L), neurohormonal agents, and lifestyle modification, are crucial.

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