Publications by authors named "Venkat S Manubolu"

Background/aims: South Asians (SA) experience a significantly higher incidence of atherosclerotic cardiovascular disease (CVD) events compared to non-Hispanic whites (NHW). However, detailed plaque characteristics in SA, particularly assessed through quantitative coronary plaque analysis using coronary computed tomography angiography (CCTA), remain under-investigated. This study aimed to compare the characteristics of coronary plaque burden between SA and NHW using CCTA.

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South Asians (SAs) represent an increasing proportion of North American populations and demonstrate excess cardiometabolic risk. Multiple factors likely contribute; however, much is not yet known about what leads to this excess risk. Diet composition, physical activity, and mental health are important lifestyle contributors.

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Background And Aim: The prevalence of hepatic steatosis continues to increase worldwide. Hepatic steatosis is increasingly recognized as an independent risk factor for cardiovascular mortality. However, there are limited options for the treatment of fatty liver.

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Background: Heart failure (HF) is associated with a large socioeconomic burden. The growth of cardiac computed tomography (CT) has allowed for investigation of new applications in predicting risk of cardiovascular disease.

Objective: To determine if cardiac CT imaging biomarkers could predict new-onset HF and improve discrimination in a current HF prediction model.

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Background: Changes in low-density lipoprotein cholesterol (LDL-C) among people following a ketogenic diet (KD) are heterogeneous. Prior work has identified an inverse association between body mass index and change in LDL-C. However, the cardiovascular disease risk implications of these lipid changes remain unknown.

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Purpose Of Review: Cardiovascular computed tomography (CCT) is a versatile, readily available, and non-invasive imaging tool with high-resolution capabilities in many cardiovascular diseases (CVD). Our review explains the increased risk of CVD among patients with cancer due to chemoradiotherapies, shared risk factors and cancer itself and explores the expanding role of CCT in the detection, surveillance, and management of numerous CVD among these patients.

Recent Findings: Recent research has highlighted the versatility and enhanced resolution capabilities of CCT in assessing a wide range of cardiovascular diseases.

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Article Synopsis
  • Increased levels of low-density lipoprotein cholesterol (LDL-C) were observed in individuals following ketogenic diets, particularly in those with a specific "lean mass hyper-responder" (LMHR) phenotype.
  • The study aimed to compare coronary plaque burden in LMHR individuals with high LDL-C (≥190 mg/dL) against matched controls from the Miami Heart cohort.
  • Results showed no significant difference in coronary plaque levels between the ketogenic diet group and controls, indicating that high LDL-C does not correlate with increased coronary plaque burden in metabolically healthy individuals.
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Background: For individuals with a coronary artery calcium (CAC) score of 0, CAC rescans at appropriate timings are recommended, depending on individual risk profiles. Although nonalcoholic fatty liver disease, recently redefined as metabolic-associated fatty liver disease, is a risk factor for atherosclerotic cardiovascular disease events, its relationship with the warranty period of a CAC score of 0 has not been elucidated.

Methods: A total of 1944 subjects from the MESA (Multi-Ethnic Study of Atherosclerosis) with a baseline CAC score of 0, presence or absence of nonalcoholic hepatic steatosis, and at least 1 follow-up computed tomography scan were included.

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Epicardial adipose tissue (EAT) may enhance the risk of coronary artery disease (CAD). We investigated the relationship between EAT density (a maker of local inflammation) and coronary plaque characteristics in stable CAD patients. This study included 123 individuals who underwent coronary artery calcium scan and coronary CT angiography to evaluate CAD.

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Agatston coronary artery calcium (CAC) score is a strong predictor of mortality. However, the relationship between CAC and quantitative calcified plaque volume (CPV), which is measured on coronary computed tomography angiography (CCTA), is not well understood. Furthermore, there is limited evidence evaluating the difference between CAC versus CPV and CAC versus total plaque volume (TPV) in predicting obstructive coronary artery disease (CAD).

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Background: Despite innovations in pharmacotherapy to lower lipoprotein cholesterol and apolipoprotein B, risk factors for atherosclerotic cardiovascular disease (ASCVD), ASCVD persists as the leading global cause of mortality. Elevations in low-density lipoprotein cholesterol (LDL-C) are a well-known risk factor and have been a main target in the treatment of ASCVD. The latest research suggests that ketogenic diets are effective at improving most non-LDL-C/apolipoprotein B cardiometabolic risk factors.

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Coronary computed tomography angiography (CCTA) has emerged as a pivotal tool in the non-invasive evaluation of coronary artery disease (CAD). Recent advancements in imaging techniques, quantitative plaque assessment methods, assessment of coronary physiology, and perivascular coronary inflammation have propelled CCTA to the forefront of CAD management, enabling precise risk stratification, disease monitoring, and evaluation of treatment response. However, challenges persist, including the need for cardiovascular outcomes data for therapy modifications based on CCTA findings and the lack of standardized quantitative plaque assessment techniques to establish universal guidelines for treatment strategies.

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Unlabelled: This study compared the prognostic value of quantified thoracic artery calcium (TAC) including aortic arch on chest CT and coronary artery calcium (CAC) score on ECG-gated cardiac CT.

Methods: A total of 2412 participants who underwent both chest CT and ECG-gated cardiac CT at the same period were included in the Multi-Ethnic Study of Atherosclerosis Exam 5. All participants were monitored for incident atherosclerotic cardiovascular disease (ASCVD) events.

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Article Synopsis
  • Colchicine is an anti-inflammatory drug traditionally used for autoimmune diseases but is now recognized for its role in managing cardiovascular diseases (CVD) and coronary artery disease (CAD), especially after FDA approval in 2023.
  • The medication works by targeting various anti-inflammatory pathways, leading to reduced cardiovascular events and modifications in atherosclerotic plaque.
  • This review paper aims to clarify colchicine's new role as a plaque modifier, consolidating existing research and clinical findings to assist healthcare professionals in effectively utilizing it alongside other CVD treatment strategies.
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A 45-year-old man presented with nonspecific symptoms caused by a mass compressing the right ventricle. Cardiac computed tomography accurately predicted the operative and pathologic appearance of the mass, and the final diagnosis of an encapsulated cardiac hematoma was confirmed by pathologic examination. This condition is infrequent and mimics a cardiac tumor.

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Background And Aims: Subclinical atherosclerosis (SA) diagnosis is key to primary prevention of atherosclerotic cardiovascular disease (ASCVD). SA is common among diabetics. Ankle brachial index (ABI) and coronary artery calcium (CAC) are markers of SA.

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Objective: Nonalcoholic fatty liver disease not only shares multiple risk factors with cardiovascular disease but also independently predicts its increased risk and related outcomes. Here, we evaluate reproducibility of 3-dimensional (3D) liver volume segmentation method to identify fatty liver on noncontrast cardiac computed tomography (CT) and compare measures with previously validated 2-dimensional (2D) segmentation CT criteria for the measurement of liver fat.

Methods: The study included 68 participants enrolled in the EVAPORATE trial and underwent serial noncontrast cardiac CT.

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Background: Nonalcoholic fatty liver disease (NAFLD) is associated with an increased risk of atherosclerotic cardiovascular disease (ASCVD) events; thus, a diagnostic approach to help identify NAFLD patients at high risk is needed. In this study, we hypothesized that coronary artery calcium (CAC) screening could help stratify the risk of ASCVD events in participants with suspected nonalcoholic hepatic steatosis.

Methods: A total of 713 participants with suspected nonalcoholic hepatic steatosis without previous cardiovascular events from the Multi-Ethnic Study of Atherosclerosis (MESA) were followed for the occurrence of incident ASCVD.

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Background: Artificial intelligence (AI) applied to cardiac imaging may provide improved processing, reading precision and advantages of automation. Coronary artery calcium (CAC) score testing is a standard stratification tool that is rapid and highly reproducible. We analyzed CAC results of 100 studies in order to determine the accuracy and correlation between the AI software (Coreline AVIEW, Seoul, South Korea) and expert level-3 computed tomography (CT) human CAC interpretation and its performance when coronary artery disease data and reporting system (coronary artery calcium data and reporting system) classification is applied.

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Radiation therapy is the standard of care for achieving cure for many thoracic malignancies, but it can result in long-term cardiovascular sequelae such as valve disease. We describe a rare case of severe aortic and mitral stenosis due to prior radiation therapy for giant cell tumor treated successfully with percutaneous aortic and off-label mitral valve replacements. ().

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Article Synopsis
  • Direct oral anticoagulants (DOACs) like apixaban and rivaroxaban potentially influence coronary plaque progression differently in patients with nonvalvular atrial fibrillation.
  • A study compared effects over 12 months using cardiac CT in 74 patients, observing that both drugs led to plaque progression but with notable differences in the extent of calcified plaque advancements.
  • Results indicated that apixaban had significantly lower progression of calcified plaque compared to rivaroxaban, with also notable changes in high-risk plaque characteristics.
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Background And Aims: Previously, osteoporosis and coronary artery disease were considered unrelated. However, beyond age, these two conditions appear to share common etiologies that are not yet fully understood. We examined the relationship between thoracic spine bone mineral density (BMD) and severity of coronary artery calcium (CAC) score.

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