131 results match your criteria: "University of Texas Southwestern Medical Center Dallas TX.[Affiliation]"

Background: This study aims to characterize right ventricular dysfunction (RVD) in heart failure (HF) with preserved ejection fraction and understand the cumulative prognostic value of abnormal RV echocardiographic parameters in HF with preserved ejection fraction.

Methods And Results: Data from 809 patients in the PARAGON-HF (Prospective Comparison of Angiotensin Receptor-Neprilysin Inhibitor With Angiotensin-Receptor Blocker Global Outcomes in HF With Preserved Ejection Fraction) echocardiographic substudy (55% women, mean age 74±8 years) were analyzed. Correlates of RVD (defined as tricuspid annular plane systolic excursion <1.

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Background: Neighborhood characteristics serve as risk factors for metabolic syndrome (MetS). However, the intermediary factors linking this relationship remain understudied. Thus, we investigated the sex-specific mediating role of C-reactive protein, physical activity (PA), and perceived stress in the associations of perceived neighborhood social environment (PNSE) with MetS severity among Black adults.

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Background: Significant gap remains in the implementation of guideline-directed medical therapy (GDMT) in patients with heart failure after a hospitalization. We aimed to evaluate the use and titration of GDMT at discharge and over a 12-month period after hospital discharge and to identify factors associated with GDMT use and titration.

Methods And Results: The CONNECT-HF (Care Optimization Through Patient and Hospital Engagement Clinical Trial for Heart Failure) trial evaluated the effect of a hospital and postdischarge quality improvement intervention in participants with heart failure with reduced ejection fraction.

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Stress urinary incontinence (SUI) affects a third of the female population and is characterized by involuntary urine leakage during abdominal efforts such as sneezing, laughing, or coughing. Acute neuromodulation of the bulbospongiosus nerve (BsN) was shown to increase bladder efficiency in aged and multiparous rabbits. This study investigates the efficacy of sub-chronic BsN neuromodulation in alleviating SUI-like deficits in mature multiparous rabbits, characterized by increased urine leakage and reduced leak point pressure Using the voiding spot assay, we observed a 40% reduction in urine leakage events after 30 days of BsN stimulation, which correlated with a 60% increase in daily micturition volume, a 10-fold increase in voided volume, and improvements in voiding efficiency and leak point pressure compared to negative control animals.

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Article Synopsis
  • The study focused on understanding the rates of implantable cardioverter-defibrillator (ICD) placement among survivors of out-of-hospital cardiac arrest, specifically in patients aged 65 and older with shockable rhythms.
  • Out of 3226 patients analyzed, only 30.9% received an ICD before discharge, and factors like older age, being female, and a history of diabetes were linked to lower chances of obtaining one, but race/ethnicity showed no significant differences in ICD placement.
  • The research highlighted substantial variability in ICD implantation rates among different hospitals, with some facilities providing them to nearly 50% of survivors, while others offered them to only 20%, indicating a need for more uniform practices in
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Background: Prematurely born adults have increased risk for cardiovascular disease. There are limited cardiac data on US-born preterm individuals. We aimed to determine whether adolescents and adults born prematurely have altered left ventricular (LV) structure and function, and to interrogate diastolic function using isometric handgrip exercise.

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Background: There are no shared decision-making frameworks for selecting blood pressure (BP) targets for individuals with hypertension. This study addressed whether results from the SPRINT (Systolic Blood Pressure Intervention Trial) could be tailored to individuals using predicted risks and simulated preferences.

Methods And Results: Among 8202 SPRINT participants, Cox models were developed and internally validated to predict each individual's absolute difference in risk from intensive versus standard BP lowering for cardiovascular events, cognitive impairment, death, and serious adverse events (AEs).

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  • This study investigates the relationship between plasma proteins and stroke risk specifically in South Asian individuals, utilizing genetic data from the UK Biobank and stroke data from the GIGASTROKE consortium.
  • Using advanced statistical methods, researchers identified a potential causal link between the glycoprotein GP6 levels and the likelihood of cardioembolic stroke, showing an odds ratio indicating a significant increase in risk.
  • Findings suggest that GP6 may not have the same effect on stroke risk in European populations, highlighting the importance of genetic ancestry in biomedical research.
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Background: High-sensitivity troponin I (hs-cTnI) and T (hs-cTnT) provide complementary information regarding cardiovascular disease risk. The explanation for their distinct risk profiles is incompletely understood.

Methods And Results: hs-cTnI and hs-cTnT were measured in Dallas Heart Study participants.

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Background: Dietary supplement use is prevalent in the general US population, but little is known regarding the driving reasons for their use among those with atherosclerotic cardiovascular disease (ASCVD).

Methods And Results: Data from the National Health and Nutrition Examination Survey (NHANES) from 2017 to March 2020 were used to identify adults with ASCVD. Supplement use was assessed by interviewers using label review, and surveys captured self-reported reasons for use.

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Background: Phosphodiesterases degrade cyclic GMP (cGMP), the second messenger that mediates the cardioprotective effects of natriuretic peptides. High natriuretic peptide/cGMP ratio may reflect, in part, phosphodiesterase activity. Correlates of natriuretic peptide/cGMP in patients with heart failure with preserved ejection fraction are not well understood.

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Background: Among individuals with hypertension and low diastolic blood pressure (DBP), the optimal BP target remains controversial due to concerns that BP lowering may reduce coronary perfusion. We determined the impact of intensive BP control among individuals with elevated systolic BP who have low DBP and elevated hs-cTnT (high-sensitivity cardiac troponin T) levels.

Methods And Results: A total of 8828 participants in SPRINT (Systolic Blood Pressure Intervention Trial) were stratified by baseline DBP.

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Background High-density lipoprotein (HDL) particle concentration likely outperforms HDL cholesterol in predicting atherosclerotic cardiovascular events. Whether size-based HDL subspecies explain the atheroprotective associations of HDL particle concentration remains unknown. Our objective was to assess whether levels of specific size-based HDL subspecies associate with atherosclerotic cardiovascular disease in a multiethnic pooled cohort and improve risk prediction beyond traditional atherosclerotic cardiovascular disease risk factors.

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Article Synopsis
  • The ADAPTABLE trial, a large study on aspirin dosing for preventing heart issues, showed no significant difference in efficacy between high- and low-dose aspirin in patients with cardiovascular disease.
  • It explored whether using P2Y12 inhibitors like clopidogrel or prasugrel impacted aspirin's effectiveness or safety; however, results indicated no interaction between aspirin dose and P2Y12 inhibitor use.
  • Participants taking P2Y12 inhibitors had a higher risk of major cardiovascular events but not an increased risk of bleeding, and switching doses was more common in the high-dose group without being influenced by P2Y12 inhibitor status.
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Background Moderate intensity exercise training (MIT) is safe and effective for patients with hypertrophic cardiomyopathy, yet the efficacy of high intensity training (HIT) remains unknown. This study aimed to compare the efficacy of HIT compared with MIT in patients with hypertrophic cardiomyopathy. Methods and Results Patients with hypertrophic cardiomyopathy were randomized to either 5 months of MIT, or 1 month of MIT followed by 4 months of progressive HIT.

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Background: Wearable devices may be useful for identification, quantification and characterization, and management of atrial fibrillation (AF). To date, consumer wrist-worn devices for AF detection using photoplethysmography-based algorithms perform only periodic checks when the user is stationary and are US Food and Drug Administration cleared for prediagnostic uses without intended use for clinical decision-making. There is an unmet need for medical-grade diagnostic wrist-worn devices that provide long-term, continuous AF monitoring.

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Acute myocardial infarction is an important cause of death worldwide. While it often affects patients of older age, acute myocardial infarction is garnering more attention as a significant cause of morbidity and mortality among young patients (<45 years of age). More specifically, there is a focus on recognizing the unique etiologies for myocardial infarction in these younger patients as nonatherosclerotic etiologies occur more frequently in this population.

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Article Synopsis
  • Prevention strategies for standard modifiable cardiovascular risk factors (SMuRFs) are crucial for improving outcomes in cardiovascular disease, but acute myocardial infarction (AMI) can still occur in individuals without SMuRFs.
  • A study analyzed AMI hospitalizations from 2000 to 2014 and found that 3.6% of patients had no documented SMuRFs, often receiving fewer medical treatments and procedures.
  • Patients without SMuRFs had significantly higher mortality rates within 28 days and 1 year after hospitalization for AMI compared to those with SMuRFs, highlighting the need for better early risk identification and tailored treatment strategies for this group.
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Background In-stent restenosis (ISR) is commonly encountered even in the era of contemporary percutaneous coronary intervention (PCI). There is a paucity of data on the comparative outcomes of PCI for ISR lesions versus de novo lesions. Methods and Results An electronic search was conducted for MEDLINE, Cochrane, and Embase through August 2022 for studies comparing the clinical outcomes after PCI for ISR versus de novo lesions.

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Article Synopsis
  • Research indicates that metabolic dysfunction plays a role in heart changes due to aortic stenosis, but a significant study on human metabolism hasn't been done yet.
  • In a study involving 519 patients, researchers examined 12 heart function metrics before valve implantation and identified three patterns of heart remodeling, linking these to specific metabolic profiles.
  • A distinctive metabolite score for heart function was found to predict higher death rates post-surgery and was related to overall health issues, emphasizing the need to explore metabolic factors to improve patient outcomes after transcatheter aortic valve placement.
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