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Heart, Lung & Circulation

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https://www.readbyqxmd.com/read/28606607/state-of-the-art-review-atrial-fibrillation-in-athletes
#1
REVIEW
M Darragh Flannery, Jonathan M Kalman, Prashanthan Sanders, André La Gerche
Exercise has substantial health benefits with pleomorphic vascular, metabolic, psychological and anti-neoplastic actions resulting in improved quality of life and longevity. Despite these many benefits, numerous studies have shown that endurance athletes are more likely to develop atrial fibrillation (AF) than non-athletes. The type, intensity and amount of sport appears to influence the risk of developing AF. Several endurance sport activities have been shown to increase the risk of developing AF but an excess in AF has not been shown in non-endurance sports...
June 3, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28606609/retrograde-type-a-dissection-after-thoracic-endovascular-aortic-repair-surgical-strategy-and-literature-review
#2
Zhao An, Zhigang Song, Hao Tang, Lin Han, Zhiyun Xu
BACKGROUND: In this study, we investigated the surgical strategy for managing retrograde type A dissection (RTAD) after thoracic endovascular aortic repair (TEVAR) by reporting our experience and literature review. METHODS: From June 2011 to January 2014, nine patients with RTAD received surgical repair in our institution. The mean age of these patients was 49.3±10.7 years. Data on these RTAD patients was retrospectively collected for further analysis. Literature related to RTAD after TEVAR from 2006 to 2014 was reviewed using the following terms: thoracic endovascular aortic repair, retrograde type A dissection, stent induced new entry, and surgical repair...
May 29, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28601533/nsaid-use-and-cardiovascular-disease-a-cautionary-tale
#3
EDITORIAL
Michael B Stokes, Prashanthan Sanders, Stephen J Nicholls, Peter J Psaltis
No abstract text is available yet for this article.
May 27, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28610722/factors-promoting-survival-after-prolonged-resuscitation-attempts-a-case-of-survival-with-good-neurological-outcome-following-60-minutes-of-downtime-after-out-of-hospital-cardiac-arrest
#4
Douglas Bell, Robert Gluer, Dale Murdoch
BACKGROUND: Sudden cardiac arrest is a significant cause of death affecting approximately 25,000 people in Australia annually. METHODS: We present an out-of-hospital cardiac arrest (OHCA) with prolonged down time and recurrent ventricular arrhythmias treated with extra-corporeal membrane oxygenation. RESULTS: The patient survived to hospital discharge with good neurological outcome. CONCLUSION: The patient's excellent outcome was a result of immediate good quality CPR, high level premorbid function, reversible cause of arrest and rapid access to an ECMO centre...
May 25, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28625598/predictors-of-long-term-outcomes-after-drug-eluting-balloon-angioplasty-for-bare-metal-stent-restenosis
#5
Ming-Jer Hsieh, Yu-Chang Huang, Jih-Kai Yeh, Chun-Chi Chen, Dong-Yi Chen, Chia-Hung Yang, Ming-Lung Tsai, Ming-Yun Ho, Shang-Hung Chang, Chao-Yung Wang, Cheng-Hung Lee, I-Chang Hsieh
BACKGROUND: Clinical trials have investigated efficacy of drug-eluting balloon (DEB) angioplasty for bare-metal stent (BMS) in-stent restenosis (ISR). Few studies have investigated predictors of long-term outcomes following BMS-ISR treatment with DEB. METHODS: From June 2011 to April 2015, 105 patients with 125 BMS-ISR lesions were enrolled from the Cardiovascular Atherosclerosis and Percutaneous TrAnsluminal INterventions (CAPTAIN) registry. All these lesions were treated with DEB angioplasty as final therapy...
May 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28623064/to-screen-or-not-to-screen-examining-the-arguments-against-screening-for-atrial-fibrillation
#6
REVIEW
Lis Neubeck, Jessica Orchard, Nicole Lowres, S Ben Freedman
Atrial fibrillation (AF) is the most common cardiac arrhythmia, with a lifetime risk of one in four of developing AF over the age of 40 years. Around 40% of patients are asymptomatic, which is of concern as AF is a major risk factor for stroke. Early detection and appropriate management reduces stroke risk by two-thirds. Atrial fibrillation screening is now recommended in international guidelines, but there are some common arguments against screening. Overall, to be of value any screening program must fulfil the World Health Organization (WHO) Wilson and Jungner criteria for screening programs...
May 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28610723/pathophysiology-of-paroxysmal-and-persistent-atrial-fibrillation-rotors-foci-and-fibrosis
#7
REVIEW
Dennis H Lau, Dominik Linz, Ulrich Schotten, Rajiv Mahajan, Prashanthan Sanders, Jonathan M Kalman
Recent advances in our understanding of the mechanisms underlying atrial fibrillation (AF) have further underscored the complex pathophysiological basis of the arrhythmia. It has become apparent that the current clinical classification of AF does not reflect the severity of the underlying atrial disease. Atrial fibrosis has been identified as the key structural change in different substrates that are responsible for the perpetuation of AF. Three-dimensional electroanatomical mapping and late gadolinium-enhanced magnetic resonance imaging are novel modalities that can be used to facilitate identification and quantitation of atrial fibrosis for improved delineation of the AF substrate...
May 24, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28602671/atrial-fibrillation-in-hypertrophic-cardiomyopathy
#8
REVIEW
Kaivan Vaidya, Christopher Semsarian, Kim H Chan
Hypertrophic cardiomyopathy (HCM) is an inherited cardiac disorder with a spectrum of clinical manifestations. Patients with HCM are predisposed to developing atrial fibrillation (AF) due primarily to advanced diastolic dysfunction and left atrial (LA) dilatation and remodelling. Atrial fibrillation causes a progressive symptomatic and functional decline, as well as increased thromboembolic risk and mortality, particularly in the setting of rapid ventricular rates and left ventricular outflow tract (LVOT) obstruction...
May 23, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28602672/surgical-and-hybrid-ablation-of-atrial-fibrillation
#9
REVIEW
Reece A Davies, Saurabh Kumar, Richard B Chard, Stuart P Thomas
Atrial fibrillation (AF) is the most common arrhythmia in humans and is known to be associated with an increased risk of stroke, dementia, heart failure and mortality. Non-pharmacological therapy with ablation using either surgical or percutaneous techniques is recommended in drug refractory AF. Early attempts to devise procedures to ablate AF and restore sinus rhythm culminated with the Cox-Maze procedure, the first truly successful procedure. Since then, ablation surgery has been conducted predominately as a concomitant procedure...
May 18, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28606608/clinical-characteristics-and-burden-of-risk-factors-among-patients-with-early-onset-acute-coronary-syndromes-the-anzacs-qi-new-zealand-national-cohort-anzacs-qi-17
#10
Nikki J Earle, Katrina K Poppe, Robert N Doughty, Anna Rolleston, Andrew J Kerr, Malcolm E Legget
BACKGROUND: Cardiovascular (CV) risk factor profiles of people experiencing acute coronary syndromes (ACS) vary with age, and in New Zealand (NZ), Māori and people of Pacific Island descent typically present with ACS at a younger age. We aimed to explore age- and ethnicity-related differences in CV risk factors in a large NZ cohort with first-time ACS. METHODS: The All NZ Acute Coronary Syndrome Quality Improvement program (ANZACS-QI) registry collects comprehensive data for patients admitted with ACS at NZ hospitals...
May 17, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28602670/the-applicability-of-the-american-college-of-cardiology-appropriate-use-criteria-for-myocardial-perfusion-scintigraphy-in-australia
#11
Chee Loong Chow, Francis A Ponnuthurai, Kevin C Allman, William van Gaal
BACKGROUND: The American College of Cardiology (ACC) Appropriate Use Criteria (AUC) for radionuclide myocardial perfusion scans (MPS) was developed to promote its rational use in the assessment of stable ischaemic heart disease (IHD). We sought to validate the applicability of this document in the Australian context. METHODS: 1009 consecutive patients who underwent MPS were retrospectively audited at a single major metropolitan hospital in Victoria, Australia. Appropriateness was assigned based on the 2013 ACC AUC, and common indications and predictors of positive scan results were examined...
May 17, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28592377/normative-values-of-short-term-heart-rate-variability-parameters-in-koreans-and-their-clinical-value-for-the-prediction-of-mortality
#12
Chan-Hee Lee, Jung-Hee Lee, Jang-Won Son, Ung Kim, Jong-Seon Park, Jeon Lee, Dong-Gu Shin
BACKGROUND: Heart rate variability (HRV) analysis is an important clinical tool for characterising cardiac autonomic status. We sought to determine the normative values and characteristics of the HRV parameters derived from a short-term study in Koreans and to determine their clinical role in predicting mortality. METHODS: A total of 1828 consecutive patients (range 20-84 years, men 64.8%) with no serious comorbid conditions were recruited. The RR intervals from 10-minute electrocardiograms were used for computation of the following HRV parameters: conventional time- and frequency-domain measures and nonlinear measures...
May 17, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28583815/ldl-cholesterol-predicts-a-first-chd-event-in-senior-citizens-especially-so-in-those-with-elevated-lipoprotein-a-dubbo-study-of-the-elderly
#13
Leon A Simons, Judith Simons, Yechiel Friedlander, John McCallum
OBJECTIVE: The analysis was designed to explore the combined effects of LDL-cholesterol and lipoprotein(a) (Lp(a)) in predicting incident coronary heart disease (CHD) in senior citizens without prior CHD. METHODS: This is a prospective cohort study in Dubbo NSW which has followed 2805 men and women 60 years and older for 16 years since 1988-1989. Subjects with prior CHD (n=607) were excluded from this analysis. Incident CHD events were identified by hospital record linkage...
May 17, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28601532/genetics-of-atrial-fibrillation-state-of-the-art-in-2017
#14
REVIEW
Diane Fatkin, Celine F Santiago, Inken G Huttner, Steven A Lubitz, Patrick T Ellinor
Genetic variation is an important determinant of atrial fibrillation (AF) susceptibility. Numerous rare variants in protein-coding sequences of genes have been associated with AF in families and in early-onset cases, and chromosomal loci harbouring common risk variants have been mapped in AF cohorts. Many of these loci are in non-coding regions of the human genome and are thought to contain regulatory sequences that modulate gene expression. Disease genes implicated to date have predominantly encoded cardiac ion channels, with predicted mutation effects on the atrial action potential duration...
May 11, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28579228/association-of-systemic-inflammation-score-with-atrial-fibrillation-a-case-control-study-with-propensity-score-matching
#15
Huan Zhang, Jun Li, Xinghua Chen, Na Wu, Weijia Xie, He Tang, Chengying Li, Long Wu, Ying Xiang, Li Zhong, Yafei Li
BACKGROUND: Inflammation plays a key role in the initiation and progression of atrial fibrillation (AF). We developed a novel systemic inflammation score (SIS) based on integration of biomarkers used routinely in clinical settings. We aim to explore the association between SIS and AF. METHODS: A matched case-control study with 376 pairs of AF cases and controls was performed using a propensity score matching system. The SIS was developed by integrating albumin (ALB), neutrophil to lymphocyte ratio (NLR), platelet to lymphocyte ratio (PLR), and lymphocytes to monocytes ratio (LMR)...
May 10, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28545821/surgical-management-of-severe-ischaemic-mitral-regurgitation
#16
Yong Zhang, Dongxu Wang, Yu Liu, Dengshun Tao, Yan Jin, Hui Jiang, Zengwei Wang, Huishan Wang
BACKGROUND: Coronary artery bypass graft surgery (CABG) with mitral valve surgery is undisputed in severe ischaemic mitral regurgitation (IMR) treatment, but the controversy is whether mitral valve replacement (MVR) or mitral valvuloplasty (MVP) should be used. METHODS: Data was collected from 130 cases of severe IMR patients who underwent CABG and MVP or MVR from June 2010 to June 2015 to compare the short-term efficacy of CABG with MVP or MVR in the treatment of severe IMR patients...
May 9, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28533099/surgical-aortic-valve-replacement-following-early-sapien-xt-valve-failure-a-first
#17
Tanveer Ahmad, Prakash Ludhani, Ronen Gurvitch, John Goldblatt, James Tatoulis
BACKGROUND: Early degeneration of prosthetic aortic valve in transcatheter aortic valve replacement (TAVR) is a rare complication. METHOD: We report the case of a 75-year-old woman who presented with severe calcific stenosis of Edwards SAPIEN-XT valve implanted only four years previously. She is a Jehovah's Witness and has background of Sjogren's syndrome with secondary cryoglobulinaemic vasculitis. She was not a suitable candidate for valve-in-valve TAVR in view of early prosthetic valve failure by calcification...
May 9, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28533098/the-current-epidemiology-of-injecting-drug-use-associated-infective-endocarditis-in-victoria-australia-in-the-midst-of-increasing-crystal-methamphetamine-use
#18
Alexandra Wright, Ohide Otome, Craig Harvey, Steve Bowe, Eugene Athan
BACKGROUND: Infective endocarditis (IE) is associated with significant mortality and morbidity despite recent advances in management. Injecting drug use (IDU) remains an important risk factor. Our aim was to evaluate the rates and patient demographics of IE and injecting drug use-associated infective endocarditis (IDU-IE) in Victoria from 2009 to 2014. METHODS: The Victorian Admitted Episode Dataset (VAED) was used to identify a population-based cohort with a diagnosis of IE and IDU-IE between 2009 and 2014 in Victoria...
May 9, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28579227/d-tga-combined-with-left-arch-atresia-of-a-double-aortic-arch
#19
Dan Zhou, Laichun Song, Liang Tao, Hong Zhou
A three-month-old female underwent an arterial switch operation for transposition of the great arteries (TGA) with concomitant ventricular septal defect (VSD). After the operation, the patient suffered from stubborn pulmonary infection with increased airway resistance, and could not be weaned from a ventilator. Multispiral computed tomography (CT) scanning suggested a double aortic arch with left arch atresia. The patient underwent a second procedure to resection the left aortic arch. The patient gradually recovered and was successfully weaned from the ventilator...
May 5, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28625597/structural-heart-disease-australia-shda
#20
EDITORIAL
Sharon Kay, David Celermajer, Michael Vallely
Structural Heart Disease Australia (SHDA) is a rapidly evolving multidisciplinary group of health care professionals which provides a forum focussed on understanding the rapidly advancing management of structural cardiac disease via Free Open Access Medical Education (FOAM).
May 4, 2017: Heart, Lung & Circulation
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