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Miller cardiac

Christopher P Lawrance, Matthew C Henn, Jacob R Miller, Michael A Kopek, Andrew J Zhang, Richard B Schuessler, Ralph J Damiano
BACKGROUND: Atrial fibrillation (AF) occurs in 30% of patients with mitral regurgitation referred for surgical intervention. However, the underlying mechanisms in this population are poorly understood. This study examined the effects of acute left atrial volume overload on atrial electrophysiology and the inducibility of AF. METHODS: Ten canines underwent insertion of an atrioventricular shunt between the left ventricle and left atrium. Shunt and aortic flows were calculated, and the shunt was titrated to a shunt fraction to 40% to 50% of cardiac output...
October 15, 2016: Annals of Thoracic Surgery
Erica O Miller, Saurabh Malhotra, Ronald G Schwartz
No abstract text is available yet for this article.
October 6, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
M Fernanda Bellolio, Lindsey R Sangaralingham, Stephanie R Schilz, Claire M Noel-Miller, Keith D Lind, Pamela Morin, Peter A Noseworthy, Nilay D Shah, Erik P Hess
OBJECTIVES: To compare healthcare utilization including coronary angiography, percutaneous coronary intervention (PCI), rehospitalization, and rate of subsequent acute myocardial infarction (AMI) within 30-days, among patients presenting to the Emergency Department (ED) with chest pain admitted as short-term inpatient (≤2 days) versus observation (in ED observation units combined with in-hospital observation). METHODS: We identified adults diagnosed with acute chest pain in the ED from 2010-2014 using administrative claims from privately insured and Medicare Advantage...
October 14, 2016: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
Dominik D Alexander, Paula E Miller, Ashley J Vargas, Douglas L Weed, Sarah S Cohen
The possible relationship between dietary cholesterol and cardiac outcomes has been scrutinized for decades. However, recent reviews of the literature have suggested that dietary cholesterol is not a nutrient of concern. Thus, we conducted a meta-analysis of egg intake (a significant contributor to dietary cholesterol) and risk of coronary heart disease (CHD) and stroke. A comprehensive literature search was conducted through August 2015 to identify prospective cohort studies that reported risk estimates for egg consumption in association with CHD or stroke...
October 6, 2016: Journal of the American College of Nutrition
David R Busch, Craig G Rusin, Wanda Miller-Hance, Kathy Kibler, Wesley B Baker, Jeffrey S Heinle, Charles D Fraser, Arjun G Yodh, Daniel J Licht, Kenneth M Brady
While survival of children with complex congenital heart defects has improved in recent years, roughly half suffer neurological deficits suspected to be related to cerebral ischemia. Here we report the first demonstration of optical diffuse correlation spectroscopy (DCS) for continuous and non-invasive monitoring of cerebral microvascular blood flow during complex human neonatal or cardiac surgery. Comparison between DCS and Doppler ultrasound flow measurements during deep hypothermia, circulatory arrest, and rewarming were in good agreement...
September 1, 2016: Biomedical Optics Express
Walter A Rocca, Liliana Gazzuola-Rocca, Carin Y Smith, Brandon R Grossardt, Stephanie S Faubion, Lynne T Shuster, James L Kirkland, Elizabeth A Stewart, Virginia M Miller
OBJECTIVE: To study the association between bilateral oophorectomy and the rate of accumulation of multimorbidity. PATIENTS AND METHODS: In this historical cohort study, the Rochester Epidemiology Project records-linkage system was used to identify all premenopausal women who underwent bilateral oophorectomy before age 50 years between January 1, 1988, and December 31, 2007, in Olmsted County, Minnesota. Each woman was randomly matched to a referent woman born in the same year (±1 year) who had not undergone bilateral oophorectomy...
September 28, 2016: Mayo Clinic Proceedings
Jared D Miller, Saman Nazarian, Henry R Halperin
There is a growing population of patients with implanted electronic cardiac devices and a concomitant increase in the use of magnetic resonance (MR). There are theoretical safety risks posed to such devices by MR. However, there are now considerable laboratory data and clinical experience demonstrating safety in this setting, assuming appropriate device selection and patient monitoring. Herein, we review these data and our safety protocol and the new generation of devices that have been prospectively designed and tested to be safe for MR scanning, assuming certain conditions are met (i...
October 4, 2016: Journal of the American College of Cardiology
Anne E Sales, Mary Ersek, Orna K Intrator, Cari Levy, Joan G Carpenter, Robert Hogikyan, Helen C Kales, Zach Landis-Lewis, Tobie Olsan, Susan C Miller, Marcos Montagnini, Vyjeyanthi S Periyakoil, Sheri Reder
BACKGROUND: The program "Implementing Goals of Care Conversations with Veterans in VA LTC Settings" is proposed in partnership with the US Veterans Health Administration (VA) National Center for Ethics in Health Care and the Geriatrics and Extended Care Program Offices, together with the VA Office of Nursing Services. The three projects in this program are designed to support a new system-wide mandate requiring providers to conduct and systematically record conversations with veterans about their preferences for care, particularly life-sustaining treatments...
September 29, 2016: Implementation Science: IS
Sarah Franklin, Todd Kimball, Tara L Rasmussen, Manuel Rosa Garrido, Haodong Chen, Tam Tran, Mickey R Miller, Ricardo Gray, Shanxi Jiang, Shuxun Ren, Yibin Wang, Haley O Tucker, Thomas M Vondriska
All terminally differentiated organs face two challenges: maintaining their cellular identity and restricting organ size. The molecular mechanisms responsible for these decisions are of critical importance to organismal development and perturbations in their normal balance can lead to disease. A hallmark of heart failure, a condition affecting millions of people worldwide, is hypertrophic growth of cardiomyocytes. The various forms of heart failure in humans and animals models share conserved transcriptome remodeling events that lead to expression of genes normally silenced in the healthy adult heart...
September 23, 2016: American Journal of Physiology. Heart and Circulatory Physiology
Karla L Miller, Fidel Alfaro-Almagro, Neal K Bangerter, David L Thomas, Essa Yacoub, Junqian Xu, Andreas J Bartsch, Saad Jbabdi, Stamatios N Sotiropoulos, Jesper L R Andersson, Ludovica Griffanti, Gwenaëlle Douaud, Thomas W Okell, Peter Weale, Iulius Dragonu, Steve Garratt, Sarah Hudson, Rory Collins, Mark Jenkinson, Paul M Matthews, Stephen M Smith
Medical imaging has enormous potential for early disease prediction, but is impeded by the difficulty and expense of acquiring data sets before symptom onset. UK Biobank aims to address this problem directly by acquiring high-quality, consistently acquired imaging data from 100,000 predominantly healthy participants, with health outcomes being tracked over the coming decades. The brain imaging includes structural, diffusion and functional modalities. Along with body and cardiac imaging, genetics, lifestyle measures, biological phenotyping and health records, this imaging is expected to enable discovery of imaging markers of a broad range of diseases at their earliest stages, as well as provide unique insight into disease mechanisms...
September 19, 2016: Nature Neuroscience
Drayton A Hammond, Melanie N Smith, Kristen C Lee, Danielle Honein, April Miller Quidley
Heart failure (HF) is a societal burden due to its high prevalence, frequent admissions for acute decompensated heart failure (ADHF), and the economic impact of direct and indirect costs associated with HF and ADHF. Common etiologies of ADHF include medication and diet noncompliance, arrhythmias, deterioration in renal function, poorly controlled hypertension, myocardial infarction, and infections. Appropriate medical management of ADHF in patients is guided by the identification of signs and symptoms of fluid overload or low cardiac output and utilization of evidence-based practices...
September 16, 2016: Journal of Intensive Care Medicine
Paldeep S Atwal, C Macmurdo
Features of Miller-Dieker syndrome (MDS, 17p13.3 deletion syndrome, LIS1-associated lissencephaly) include classic lissencephaly, microcephaly, cardiac malformations, growth restriction, and characteristic facial changes. Individuals with 22q11.2 deletion syndrome (DiGeorge syndrome or velocardiofacial syndrome) are known to have congenital cardiac malformations (in particular conotruncal defects), palatal abnormalities (especially velopharyngeal insufficiency), hypocalcemia, immune deficiency, learning disabilities, and characteristic facial features...
December 2015: Journal of Pediatric Genetics
Srila Gopal, Kenneth B Miller, Iris Z Jaffe
Molecularly targeted anti-cancer therapies have revolutionized cancer treatment by improving both quality of life and survival in cancer patients. However, many of these drugs are associated with cardiovascular toxicities that are sometimes dose-limiting. Moreover, the long-term cardiovascular consequences of these drugs, some of which are used chronically, are not yet known. Although the scope and mechanisms of the cardiac toxicities are better defined, the mechanisms for vascular toxicities are only beginning to be elucidated...
October 1, 2016: Clinical Science (1979-)
Sophie Gosselin, Lotte C G Hoegberg, Robert S Hoffman, Andis Graudins, Christine M Stork, Simon H L Thomas, Samuel J Stellpflug, Bryan D Hayes, Michael Levine, Martin Morris, Andrea Nesbitt-Miller, Alexis F Turgeon, Benoit Bailey, Diane P Calello, Ryan Chuang, Theodore C Bania, Bruno Mégarbane, Ashish Bhalla, Valéry Lavergne
BACKGROUND: Although intravenous lipid emulsion (ILE) was first used to treat life-threatening local anesthetic (LA) toxicity, its use has expanded to include both non-local anesthetic (non-LA) poisoning and less severe manifestations of toxicity. A collaborative workgroup appraised the literature and provides evidence-based recommendations for the use of ILE in poisoning. METHODS: Following a systematic review of the literature, data were summarized in four publications: LA and non-LA poisoning efficacy, adverse effects, and analytical interferences...
September 8, 2016: Clinical Toxicology
Adriana D Oprea, Frederick W Lombard, Wen-Wei Liu, William D White, Jörn A Karhausen, Yi-Ju Li, Timothy E Miller, Solomon Aronson, Tong J Gan, Manuel L Fontes, Miklos D Kertai
BACKGROUND: Increased pulse pressure (PP) is an important independent predictor of cardiovascular outcome and acute kidney injury (AKI) after cardiac surgery. The objective of this study was to determine whether elevated baseline PP is associated with postoperative AKI and 30-day mortality after noncardiac surgery. METHODS: We evaluated 9125 adult patients who underwent noncardiac surgery at Duke University Medical Center between January 2006 and December 2009. Baseline arterial blood pressure was defined as the mean of the first 5 measurements recorded by the automated record keeping system before inducing anesthesia...
September 7, 2016: Anesthesia and Analgesia
Martha Grogan, Christopher G Scott, Robert A Kyle, Steven R Zeldenrust, Morie A Gertz, Grace Lin, Kyle W Klarich, Wayne L Miller, Joseph J Maleszewski, Angela Dispenzieri
BACKGROUND: Wild-type transthyretin cardiac amyloidosis (ATTRwt) is increasingly recognized as an important cause of heart failure. OBJECTIVES: The purpose of this study was to determine the natural history of ATTRwt and the predictors of survival. METHODS: We retrospectively reviewed patients diagnosed with ATTRwt at the Mayo Clinic through 2013 and recorded clinical data and survival data. Factors affecting overall survival (OS) were identified, and a prognostic staging system was developed...
September 6, 2016: Journal of the American College of Cardiology
Jason D Wagganer, William M Miller, Majid Mufaqam Syed-Abdul, Dhwani S Soni, Beverly J Hoover, Mary K McCrate, Beverly A Kester, Duc T Nguyen, Thomas J Pujol
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
Ericka L Fink, David K Prince, Jonathan R Kaltman, Dianne L Atkins, Michael Austin, Craig Warden, Jamie Hutchison, Mohamud Daya, Scott Goldberg, Heather Herren, Janice A Tijssen, James Christenson, Christian Vaillancourt, Ronna Miller, Robert H Schmicker, Clifton W Callaway
AIM: Outcomes for pediatric out-of-hospital cardiac arrest (OHCA) are poor. Our objective was to determine temporal trends in incidence and mortality for pediatric OHCA. METHODS: Adjusted incidence and hospital mortality rates of pediatric non-traumatic OHCA patients from 2007-2012 were analyzed using the 9 region Resuscitation Outcomes Consortium-Epidemiological Registry (ROC-Epistry) database. Children were divided into 4 age groups: perinatal (<3 days), infants (3days-1year), children (1-11 years), and adolescents (12-19 years)...
October 2016: Resuscitation
Rafael De la Garza Ramos, C Rory Goodwin, Nancy Abu-Bonsrah, Amit Jain, Emily K Miller, Nicole Huang, Khaled M Kebaish, Paul D Sponseller, Daniel M Sciubba
OBJECTIVE The aim of this study was to investigate the incidence of and factors associated with complications following idiopathic scoliosis surgery in adolescents. METHODS The Nationwide Inpatient Sample database was used to identify patients 10-18 years of age who had undergone spinal fusion for adolescent idiopathic scoliosis (AIS) from 2002 to 2011. Twenty-three unique in-hospital postoperative complications, including death, were examined. A series of logistic regressions was used to determine if any demographic, comorbid, or surgical parameter was associated with complication development...
August 26, 2016: Journal of Neurosurgery. Pediatrics
Andrew Jm Lewis, Jack Jj Miller, Chloe McCallum, Oliver J Rider, Stefan Neubauer, Lisa C Heather, Damian J Tyler
Metformin improves cardiovascular outcomes in type 2 diabetes, but its exact mechanisms of action remain controversial. We used hyperpolarized [1-(13)C]pyruvate magnetic resonance spectroscopy to determine the effects of metformin treatment upon heart and liver pyruvate metabolism in rats in vivo Both oral treatment for four weeks and a single intravenous metformin infusion significantly increased the cardiac [1-(13)C]lactate:[1-(13)C]pyruvate ratio, but had no effect on the [1-(13)C]bicarbonate + (13)CO2:[1-(13)C]pyruvate ratio, an index of pyruvate dehydrogenase flux...
August 25, 2016: Diabetes
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