Read by QxMD icon Read


Shu Meng, Qilin Gu, Xiaojie Yang, Jie Lv, Iris Owusu, Gianfranco Matrone, Kaifu Chen, John P Cooke, Longhou Fang
Background -Angiogenesis is integral for embryogenesis, and targeting angiogenesis improves the outcome of many pathological conditions in patients. TBX20 is a crucial transcription factor for embryonic development, and its deficiency is associated with congenital heart disease. However, the role of TBX20 in angiogenesis has not been described. Methods -Loss- and gain-of-function approaches were used to explore the role of TBX20 in angiogenesis both in vitro and in vivo Angiogenesis gene array was used to identify key downstream targets of TBX20...
March 15, 2018: Circulation
Jens Sundbøll, Katalin Veres, Erzsébet Horváth-Puhó, Kasper Adelborg, Henrik Toft Sørensen
Background -Venous thromboembolism can be a presenting symptom of cancer, but the association between lower limb arterial thrombosis and cancer is unknown. We therefore examined cancer risk and prognosis of cancer in patients with lower limb arterial thrombosis. Methods -Using nationwide population-based Danish medical registries, we identified all patients diagnosed with first-time lower limb arterial thrombosis (1994-2013) and followed them until the occurrence of any subsequent cancer diagnosis, emigration, death, or 30 November 2013, whichever came first...
March 14, 2018: Circulation
Sergio Richter, Michael Döring, Micaela Ebert, Kerstin Bode, Andreas Müssigbrodt, Philipp Sommer, Daniela Husser, Gerhard Hindricks
Leadless cardiac pacemaker (LCP) therapy has been established clinically as a feasible and safe alternative to conventional transvenous pacemaker therapy for patients with an indication for single-chamber right-ventricular pacing.1-3 However, reports on loss of telemetry and pacing output due to abrupt battery failure called the safety of one of the two commercially available systems seriously into question. The initial battery advisory with the Nanostim™ LCP was issued by the manufacturer in October 2016, who instantly called a global stop to Nanostim™ implants...
March 14, 2018: Circulation
Joshua A Beckman, Meredith S Duncan, Charles W Alcorn, Kaku So-Armah, Adeel A Butt, Matthew B Goetz, Hilary A Tindle, Jason Sico, Russel P Tracy, Amy C Justice, Matthew S Freiberg
Background -The effect of HIV on the development of peripheral artery disease (PAD) remains unclear. We investigated whether HIV infection is associated with an increased risk of PAD after adjustment for traditional atherosclerotic risk factors in a large cohort of HIV infected (HIV+) and demographically similar HIV uninfected veterans. Methods -We studied participants in the Veterans Aging Cohort Study from April 1, 2003 through December 31, 2014. We excluded participants with known prior PAD or prevalent cardiovascular disease (myocardial infarction, stroke, coronary heart disease, and congestive heart failure) and analyzed the effect of HIV status on the risk of incident PAD events after adjusting for demographics, PAD risk factors, substance use, CD4 cell count, HIV-1 RNA, and antiretroviral therapy...
March 13, 2018: Circulation
Sami Viskin
Terror-Mori-Ex-Abrupto is the Latin term for "fear of dropping dead." Based on frequent email consultations I receive from patients with "suspected Brugada syndrome" (BrS), it seems that a terrifying anticipation of dying is more dominant among asymptomatic patients with BrS than in other arrhythmogenic diseases. The tragic death of a young British man that went viral over Facebook, led >10,000 British citizens to petition their Parliament, requesting that all patients with asymptomatic BrS be given the choice of an implantable defibrillator (ICD) even in the absence of markers indicating increased risk Already, 1 in 2 patients undergoing ICD implantation for BrS are asymptomatic and 1 in 5 are not only free of symptoms, but do not even have the Brugada electrocardiogram (ECG) spontaneously...
March 12, 2018: Circulation
Erin A Bohula, Robert P Giugliano, Lawrence A Leiter, Subodh Verma, Jeong-Gun Park, Peter S Sever, Armando Lira Pineda, Narimon Honarpour, Huei Wang, Sabina A Murphy, Anthony Keech, Terje R Pedersen, Marc S Sabatine
BACKGROUND : In the FOURIER trial (Further Cardiovascular Outcomes Research With PCSK9 Inhibition in Patients With Elevated Risk), the PCSK9 (proprotein convertase subtilisin/kexin type 9) inhibitor evolocumab reduced low-density lipoprotein cholesterol (LDL-C) and cardiovascular risk. It is not known whether the efficacy of evolocumab is modified by baseline inflammatory risk. We explored the efficacy of evolocumab stratified by baseline high-sensitivity C-reactive protein (hsCRP). We also assessed the importance of inflammatory and residual cholesterol risk across the range of on-treatment LDL-C concentrations...
March 12, 2018: Circulation
Federico M Asch, Mani A Vannan, Siddharth Singh, Bijoy Khandheria, Stephen H Little, Dominic J Allocco, Ian T Meredith, Ted E Feldman, Michael J Reardon, Neil J Weissman
BACKGROUND : Comparative echocardiographic data on transcatheter aortic valve replacement systems from randomized trials are limited. The REPRISE III trial (Repositionable Percutaneous Replacement of Stenotic Aortic Valve through Implantation of Lotus Valve System - Randomized Clinical Evaluation) is a multicenter, randomized comparison of a mechanically expanded (Lotus) versus self-expanding (CoreValve) transcatheter aortic valve replacement device. This analysis rigorously assesses Doppler-derived valve hemodynamics and the impact on outcomes at 1 year in patients with extreme/high surgical risk treated with Lotus and CoreValve from REPRISE III...
March 12, 2018: Circulation
Jussi Jaakkola, Samuli Jaakkola, Olli Lahdenoja, Tero Hurnanen, Tero Koivisto, Mikko Pänkäälä, Timo Knuutila, Tuomas O Kiviniemi, Tuija Vasankari, K E Juhani Airaksinen
Because of the frequent asymptomatic presentation of atrial fibrillation (AF), stroke is too often its first manifestation.1 For effective stroke prevention, timely diagnosis of AF is crucial. Mobile devices are becoming ubiquitous, providing significant possibilities for screening applications. In mechanocardiography, mechanical cardiac activity is recorded with accelerometers and gyroscopes, standard components of modern smartphones.2 In our previous proof-of-concept study, smartphone mechanocardiography demonstrated 94% sensitivity and 100% specificity for detecting AF among 39 subjects...
March 11, 2018: Circulation
Francesco Franchi, Fabiana Rollini, Jose Rivas Rios, Andrea Rivas, Malhar Agarwal, Megha Kureti, Deepa Nagaraju, Mustafa Wali, Zubair Shaikh, Maryuri Briceno, Ahmed Nawaz, Jae Youn Moon, Latonya Been, Siva Suryadevara, Daniel Soffer, Martin M Zenni, Theodore A Bass, Dominick J Angiolillo
BACKGROUND : Switching between different classes of P2Y12 inhibitors, including de-escalation from ticagrelor to clopidogrel, commonly occurs in clinical practice. However, the pharmacodynamic profiles of this strategy have been poorly explored. METHODS : This was a prospective, randomized, open-label study conducted in patients on maintenance dosing (MD) of aspirin (81 mg/d) and clopidogrel (75 mg/d). After a 7-day run-in with ticagrelor (180 mg loading dose [LD] followed by 90 mg twice daily MD), patients (n=80) were randomized into 1 of 4 groups: group A, clopidogrel 600 mg LD 24 hours after the last MD of ticagrelor (C-600 mg-24h); group B, clopidogrel 600 mg LD 12 hours after the last MD of ticagrelor (C-600 mg-12h); group C, clopidogrel 75 mg/d MD 24 hours after the last MD of ticagrelor (C-75 mg-24h); and group D, ticagrelor 90 mg twice daily MD (T-90 mg twice daily)...
March 11, 2018: Circulation
Karin Rådholm, Gemma Figtree, Vlado Perkovic, Scott D Solomon, Kenneth W Mahaffey, Dick de Zeeuw, Greg Fulcher, Terrance D Barrett, Wayne Shaw, Mehul Desai, David R Matthews, Bruce Neal
BACKGROUND : Canagliflozin is a sodium glucose cotransporter 2 inhibitor that reduces the risk of cardiovascular events. We report the effects on heart failure and cardiovascular death overall, in those with and without a baseline history of heart failure, and in other participant subgroups. METHODS : The CANVAS Program (Canagliflozin Cardiovascular Assessment Study) enrolled 10 142 participants with type 2 diabetes mellitus and high cardiovascular risk. Participants were randomly assigned to canagliflozin or placebo and followed for a mean of 188 weeks...
March 11, 2018: Circulation
Nathaniel R Smilowitz, Joshua A Beckman, Scott E Sherman, Jeffrey S Berger
BACKGROUND : Acute myocardial infarction (AMI) is a major cardiovascular complication of noncardiac surgery. We aimed to evaluate the frequency, causes, and outcomes of 30-day hospital readmission after perioperative AMI. METHODS : Patients who were diagnosed with AMI during hospitalization for major noncardiac surgery were identified using the 2014 US Nationwide Readmission Database. Rates, causes, and costs of 30-day readmissions after noncardiac surgery with and without perioperative AMI were identified...
March 10, 2018: Circulation
Patricia P Chang, Lisa M Wruck, Eyal Shahar, Joseph S Rossi, Laura R Loehr, Stuart D Russell, Sunil K Agarwal, Suma H Konety, Carlos J Rodriguez, Wayne D Rosamond
Background -Community trends of acute decompensated heart failure (ADHF) in diverse populations may differ by race and sex. Methods -The Atherosclerosis Risk in Communities (ARIC) Study sampled heart failure related hospitalizations (age ≥55 years) in four US communities from 2005-2014 using ICD-9-CM codes. ADHF hospitalizations were validated by standardized physician review and computer algorithm, yielding 40,173 events after accounting for sampling design (unweighted n=8746). Results -Of the ADHF hospitalizations, 50% had reduced ejection fraction (HFrEF), 39% had preserved EF (HFpEF)...
March 8, 2018: Circulation
William Y Shi, Margarita Moreno-Betancur, Alan W Nugent, Michael Cheung, Steven Colan, Christian Turner, Gary F Sholler, Terry Robertson, Robert Justo, Andrew Bullock, Ingrid King, Andrew M Davis, Piers E F Daubeney, Robert G Weintraub
Background -Long-term outcomes for childhood left ventricular non-compaction (LVNC) are uncertain. We examined late outcomes for children with LVNC enrolled in a national population-based study. Methods -The National Australian Childhood Cardiomyopathy Study includes all children in Australia with primary cardiomyopathy diagnosed <10 years of age between 1987 and 1996. Outcomes for LVNC subjects with a dilated phenotype (LVNC-D) were compared to those with dilated cardiomyopathy (DCM). Propensity-score analysis was used for risk factor adjustment...
March 7, 2018: Circulation
Matthew Hansen, Robert H Schmicker, Craig D Newgard, Brian Grunau, Frank Scheuermeyer, Sheldon Cheskes, Veer Vithalani, Fuad Alnaji, Thomas Rea, Ahamed H Idris, Heather Herren, Jamie Hutchison, Mike Austin, Debra Egan, Mohamud Daya
Background -Previous studies have demonstrated that earlier epinephrine administration is associated with improved survival from out-of-hospital cardiac arrest (OHCA) with shockable initial rhythms. However, the effect of epinephrine timing on patients with non-shockable initial rhythms is unclear. The objective of this study was to measure the association between time to epinephrine administration and survival in adults and children with EMS-treated OHCA with non-shockable initial rhythms. Methods -We performed a secondary analysis of OHCAs prospectively identified by the Resuscitation Outcomes Consortium (ROC) network from June 4, 2011 to June 30, 2015...
March 6, 2018: Circulation
Gabby Elbaz-Greener, Shannon Masih, Jiming Fang, Dennis T Ko, Sandra B Lauck, John G Webb, Brahmajee K Nallamothu, Harindra C Wijeysundera
Background -Trans-catheter aortic valve replacement (TAVR) represents a paradigm shift in the therapeutic options for patients with severe aortic stenosis. However, rapid and exponential growth in TAVR demand may overwhelm capacity, translating to inadequate access and prolonged wait-times. Our objective was to evaluate temporal trends in TAVR wait-times and the associated clinical consequences. Methods -In this population-based study in Ontario, Canada, we identified all TAVR referrals from April 1st, 2010 to March 31st, 2016...
March 6, 2018: Circulation
Vasanth Sathiyakumar, Jihwan Park, Renato Quispe, Mohamed B Elshazly, Erin D Michos, Maciej Banach, Peter P Toth, Seamus P Whelton, Roger S Blumenthal, Steven R Jones, Seth S Martin
Background -Selected dyslipidemia guidelines recommend non-high-density lipoprotein-cholesterol (non-HDL-C) and apolipoprotein B (apoB) as secondary targets to the primary target of low-density lipoprotein-cholesterol (LDL-C). We examined, after considering two LDL-C estimates that differ in accuracy: (1) how frequently non-HDL-C guideline targets could change management; and (2) utility of apoB targets after meeting LDL-C and non-HDL-C targets. Methods -We analyzed 2,518 adults representative of the U.S. population from the 2011-2012 National Health and Nutrition Examination Survey and 126,092 patients from the Very Large Database of Lipids study with apoB...
March 5, 2018: Circulation
Daigo Sawaki, Gabor Czibik, Maria Pini, Julien Ternacle, Nadine Suffee, Raquel Mercedes, Geneviève Marcelin, Mathieu Surenaud, Elisabeth Marcos, Philippe Gual, Karine Clément, Sophie Hue, Serge Adnot, Stéphane N Hatem, Izuru Tsuchimochi, Takehiko Yoshimitsu, Corneliu Hénégar, Geneviève Derumeaux
Background -Aging induces cardiac structural and functional changes linked to the increased deposition of extracellular matrix (ECM) proteins, including osteopontin (OPN), conducing to progressive interstitial fibrosis. While OPN is involved in various pathological conditions, its role in myocardial aging remains unknown. Methods -OPN deficient mice (OPN-/-) with their WT littermates were evaluated at 2 and 14 months of age in terms of cardiac structure, function, histology and key molecular markers. OPN expression was determined by RT-PCR, immunoblot and immunofluorescence...
March 2, 2018: Circulation
Peta M A Alexander, Alan W Nugent, Piers E F Daubeney, Katherine J Lee, Lynn A Sleeper, Tibor Schuster, Christian Turner, Andrew M Davis, Chris Semsarian, Steven D Colan, Terry Robertson, James Ramsay, Robert Justo, Gary F Sholler, Ingrid King, Robert G Weintraub
Background -Late survival and symptomatic status of children with hypertrophic cardiomyopathy (HCM) have not been well defined. We examined long-term outcomes for pediatric HCM. Methods -The National Australian Childhood Cardiomyopathy Study is a longitudinal population-based cohort study of children (0-10 years) diagnosed with cardiomyopathy between 1987 and 1996. The primary study end-point was time to death or cardiac transplantation. Results -There were 80 patients with HCM with median age at diagnosis of 0...
February 28, 2018: Circulation
Magda R Hamczyk, Ricardo Villa-Bellosta, Pilar Gonzalo, María J Andrés-Manzano, Paula Nogales, Jacob F Bentzon, Carlos López-Otín, Vicente Andrés
Background -Progerin, an aberrant protein that accumulates with age, causes the rare genetic disease Hutchinson-Gilford progeria syndrome (HGPS). HGPS patients with ubiquitous progerin expression exhibit accelerated aging and atherosclerosis, and die in their early teens mainly from myocardial infarction or stroke. The mechanisms underlying progerin-induced atherosclerosis remain unexplored, in part due to the lack of appropriate animal models. Methods -We generated an atherosclerosis-prone model of HGPS by crossing apolipoprotein E-deficient ( Apoe-/- ) mice with LmnaG609G/G609G mice ubiquitously expressing progerin...
February 28, 2018: Circulation
Tze-Fan Chao, Chia-Jen Liu, Yenn-Jiang Lin, Shih-Lin Chang, Li-Wei Lo, Yu-Feng Hu, Ta-Chuan Tuan, Jo-Nan Liao, Fa-Po Chung, Tzeng-Ji Chen, Gregory Y H Lip, Shih-Ann Chen
Background -Stroke prevention with oral anticoagulants (OACs) is the cornerstone for the management of atrial fibrillation (AF). However, data about the use of OACs among patients aged ≥90 years are limited. We aimed to investigate the risk of ischemic stroke and intracranial hemorrhage (ICH), and the net clinical benefit (NCB) of OAC treatment for very elderly AF patients (≥90 years). Methods -This study used the "National Health Insurance Research Database" in Taiwan. Risks of ischemic stroke and ICH were compared between 11,064 AF and 14,658 non-AF patients aged ≥90 years without antithrombotic therapy from year 1996 to 2011...
February 28, 2018: Circulation
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"