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https://www.readbyqxmd.com/read/29431662/classification-and-reporting-of-potentially-proarrhythmic-common-genetic-variation-in-long-qt-syndrome-genetic-testing
#1
REVIEW
John R Giudicessi, Dan M Roden, Arthur A M Wilde, Michael J Ackerman
The acquired and congenital forms of long QT syndrome represent 2 distinct but clinically and genetically intertwined disorders of cardiac repolarization characterized by the shared final common pathway of QT interval prolongation and risk of potentially life-threatening arrhythmias. Over the past 2 decades, our understanding of the spectrum of genetic variation that (1) perturbs the function of cardiac ion channel macromolecular complexes and intracellular calcium-handling proteins, (2) underlies acquired/congenital long QT syndrome susceptibility, and (3) serves as a determinant of QT interval duration in the general population has grown exponentially...
February 6, 2018: Circulation
https://www.readbyqxmd.com/read/29424734/what-we-have-learned-from-the-european-heart-rhythm-association-consensus-document-on-device-detected-subclinical-atrial-tachyarrhythmias
#2
Emin Evren Özcan, Bülent Görenek
Although various cardiac monitoring methods were developed to detect subclinical arrhythmias, guidelines do not address in detail the management of subclinical atrial fibrillation and tachyarrhythmias. The European Heart Rhythm Association recently published a consensus document that addresses the clinical importance, implications, and management of device-detected subclinical atrial tachyarrhythmias. This paper comprehensively reviews the diagnostic tools to detect subclinical atrial arrhythmias and discusses the pathophysiologic link between devicedetected subclinical atrial fibrillation and stroke...
February 2018: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/29423905/a-case-of-longitudinal-care-of-a-patient-with-cardiac-sarcoidosis
#3
Rayan Saab, Pradeep Bhambhvani, Ami E Iskandrian, Fadi G Hage
Cardiac sarcoidosis has long been an evasive diagnosis with a spectrum of clinical presentations that extend from asymptomatic to ventricular arrhythmias and sudden cardiac death. The diagnosis has traditionally relied on histology which suffers from the low sensitivity of endomyocardial biopsy due to the patchy nature of the disease in addition to its invasive nature. Due to significant advancements in imaging, it is now possible to accurately identify cardiac sarcoidosis using non-invasive imaging modalities even without histological confirmation...
February 8, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29414264/risk-stratification-for-sudden-cardiac-death-after-myocardial-infarction
#4
Jonathan W Waks, Alfred E Buxton
Sudden cardiac death (SCD) accounts for ∼50% of mortality after myocardial infarction (MI). Most SCDs result from ventricular tachyarrhythmias, and the tachycardias that precipitate cardiac arrest result from multiple mechanisms. As a result, it is highly unlikely that any single test will identify all patients at risk for SCD. Current guidelines for use of implantable cardioverter-defibrillators (ICDs) to prevent SCD are based primarily on measurement of left ventricular ejection fraction (LVEF). Although reduced LVEF is associated with increased total cardiac mortality after MI, the focus of current guidelines on LVEF omits ∼50% of patients who die suddenly...
January 29, 2018: Annual Review of Medicine
https://www.readbyqxmd.com/read/29409086/-update-ventricular-tachycardia
#5
Alexander Fürnkranz, Hisaki Makimoto
Idiopathic ventricular tachycardia: Frequent monomorphic premature ventricular contractions or non-sustained ventricular tachycardia without underlying structural heart disease is not a rare condition and may cause significant symptoms. A subgroup of patients develops IVT-associated cardiomyopathy. Current ESC guidelines recommend primary catheter ablation in symptomatic patients with right ventricular outflow tract IVT. Catheter ablation is also recommended in symptomatic patients with a left ventricular outflow tract (or other rare) origin, if antiarrhythmic drugs are ineffective or not desired...
February 2018: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/29402710/safety-and-utility-of-dobutamine-and-pressure-wire-use-in-the-hemodynamic-assessment-of-low-flow-low-gradient-aortic-stenosis-with-reduced-left-ventricular-ejection-fraction
#6
Zaher Fanari, Prasad C Gunasekaran, Arslan Shaukat, Sumaya Hammami, Buddhadeb Dawn, Mark Wiley, Peter Tadros
BACKGROUND: The ACC/AHA guidelines recommend low-dose dobutamine challenge for hemodynamic assessment of the severity of AS in patients with low flow, low gradient aortic stenosis with reduced ejection fraction (EF) (LFLG-AS; stage D2). Inherent pitfalls of echocardiography could result in inaccurate aortic valve areas (AVA), which have downstream prognostic implications. Data on the safety and efficacy of coronary pressure wire and fluid-filled catheter use for low dose dobutamine infusion is sparse...
October 5, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29394453/exercise-based-cardiac-rehabilitation-for-adults-with-stable-angina
#7
REVIEW
Linda Long, Lindsey Anderson, Alice M Dewhirst, Jingzhou He, Charlene Bridges, Manish Gandhi, Rod S Taylor
BACKGROUND: A previous Cochrane review has shown that exercise-based cardiac rehabilitation (CR) can benefit myocardial infarction and post-revascularisation patients. However, the impact on stable angina remains unclear and guidance is inconsistent. Whilst recommended in the guidelines of American College of Cardiology/American Heart Association and the European Society of Cardiology, in the UK the National Institute for Health and Care Excellence (NICE) states that there is "no evidence to suggest that CR is clinically or cost-effective for managing stable angina"...
February 2, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29385434/importance-of-comorbidities-in-the-treatment-of-primary-care-patients-with-heart-failure-baseline-results-of-the-observational-recode-hf-study
#8
Marion Eisele, Winfried Adam, Anja Rakebrandt, Sigrid Boczor, Eva Blozik, Jens-Martin Träder, Stefan Störk, Christoph Herrmann-Lingen, Martin Scherer
Background: Both non-cardiac and cardiac comorbidities are related to the prognosis of chronic heart failure (HF), but so far little is known about the impact of comorbidities on treatment difficulties in routine care. Objectives: To investigate which comorbidities are associated with treatment difficulties in primary care. We hypothesized that somatic comorbidities as well as psychosocial distress are associated with treatment difficulties. Methods: In this baseline analysis of data of the observational RECODE-HF study, HF patients were recruited via primary care practices in two German sites...
January 29, 2018: Family Practice
https://www.readbyqxmd.com/read/29378019/the-cardiomyopathy-registry-of-the-eurobservational-research-programme-of-the-european-society-of-cardiology-baseline-data-and-contemporary-management-of-adult-patients-with-cardiomyopathies
#9
Philippe Charron, Perry M Elliott, Juan R Gimeno, Alida L P Caforio, Juan Pablo Kaski, Luigi Tavazzi, Michal Tendera, Carole Maupain, Cécile Laroche, Pawel Rubis, Ruxandra Jurcut, Leonardo Calò, Tiina M Heliö, Gianfranco Sinagra, Marija Zdravkovic, Aušra Kavoliuniene, Stephan B Felix, Jacek Grzybowski, Maria-Angela Losi, Folkert W Asselbergs, José Manuel García-Pinilla, Joel Salazar-Mendiguchia, Katarzyna Mizia-Stec, Aldo P Maggioni
Aims: The Cardiomyopathy Registry of the EURObservational Research Programme is a prospective, observational, and multinational registry of consecutive patients with four cardiomyopathy subtypes: hypertrophic cardiomyopathy (HCM), dilated cardiomyopathy (DCM), arrhythmogenic right ventricular cardiomyopathy (ARVC), and restrictive cardiomyopathy (RCM). We report the baseline characteristics and management of adults enrolled in the registry. Methods and results: A total of 3208 patients were enrolled by 69 centres in 18 countries [HCM (n = 1739); DCM (n = 1260); ARVC (n = 143); and RCM (n = 66)]...
January 24, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29373058/a-functional-return-to-play-progression-after-exertional-heat-stroke-in-a-high-school-football-player
#10
Rebecca M Lopez, Patrick Tanner, Sarah Irani, P Patrick Mularoni
OBJECTIVE:   To present a functional return-to-play (RTP) progression after exertional heat stroke (EHS) in a 17-year-old high school football defensive end (height = 185 cm, mass = 145.5 kg). BACKGROUND:   The patient had no pertinent medical history but moved to a warm climate several days before the EHS occurred. After completing an off-season conditioning test (14- × 110-yd [12.6- × 99.0-m] sprints) on a warm afternoon (temperature = approximately 34°C [93°F], relative humidity = 53%), the patient collapsed...
January 26, 2018: Journal of Athletic Training
https://www.readbyqxmd.com/read/29372080/troponin-testing-in-the-emergency-department-real-world-experience
#11
Mohammed Al-Maskari, Mahmoud Al-Makhdami, Hatim Al-Lawati, Hafidh Al-Hadi, Sunil K Nadar
Objectives: The aim of this study was to examine patterns of troponin testing in the emergency department of a large tertiary care hospital in Oman and to determine its effect on patient management, including length of hospital stay (LOS). Methods: This retrospective study analysed the medical records of all adult patients undergoing troponin testing in the emergency department of the Sultan Qaboos University Hospital, Muscat, Oman, during the month of July 2015...
November 2017: Sultan Qaboos University Medical Journal
https://www.readbyqxmd.com/read/29360524/dual-anticoagulant-plus-single-antiplatelet-vs-triple-anticoagulant-plus-dual-antiplatelet-antithrombotic-therapy-real-world-experience
#12
REVIEW
Mark B Effron, C Michael Gibson
Atrial fibrillation (AF) is a common arrhythmia that increases in prevalence with advancing age and in patients with coronary artery disease, revascularization, particularly with percutaneous coronary intervention (PCI), is also common. Both disease states have thrombosis as a core pathophysiologic process which requires treatment - low sheer stress thrombi in AF and intracoronary high sheer stress thrombi in PCI. For the 10-20% of patients who have both AF and undergo PCI, preventing thrombotic complications will require inhibition of both processes requiring simultaneous use of anticoagulation and antiplatelet therapy...
January 20, 2018: Progress in Cardiovascular Diseases
https://www.readbyqxmd.com/read/29343803/targeted-next-generation-sequencing-in-a-young-population-with-suspected-inherited-malignant-cardiac-arrhythmias
#13
Anders Krogh Broendberg, Morten Krogh Christiansen, Jens Cosedis Nielsen, Lisbeth Noerum Pedersen, Henrik Kjaerulf Jensen
Aborted sudden cardiac death in the young often is due to inherited heart disease. However, the clinical phenotype in these patients is not always evident. The aim of this study was to identify pathogenic molecular genetic variants in a population with suspected inherited cardiac arrhythmias. Eligible patients were admitted to Aarhus University Hospital, Denmark during the period 1999-2013 with arrhythmias assumed caused by a hereditary heart disease, and in whom no genotype had been established. We used the Danish national pacemaker and ICD registry to identify this cohort...
January 17, 2018: European Journal of Human Genetics: EJHG
https://www.readbyqxmd.com/read/29338148/novel-applications-of-bedside-monitoring-to-plumb-patient-hemodynamic-state-and-response-to-therapy
#14
Fabio Guarracino, Pietro Bertini, Michael R Pinsky
Hemodynamic monitoring is essential during the treatment of the critically ill in order to address the hemodynamic alterations and assess the response to treatment. Traditionally classified causes of shock and underlying pathophysiological mechanisms are often neglected by resuscitative strategies included in the guidelines. Most of hemodynamic management focuses on the ability to early recognise patients susceptible to increase cardiac output (CO) and mean arterial pressure (MAP) after a defined fluid challenge by eliciting Starling's law of the heart, and less is known of the ones presenting in shock and not volume responsive...
January 16, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29326834/ablation-of-atrial-fibrillation-in-patients-with-congenital-heart-disease
#15
Marwan M Refaat, Jad Ballout, Moussa Mansour
With improved surgical techniques and medical management for patients with congenital heart diseases, more patients are living longer and well into adulthood. This improved survival comes with a price of increased morbidity, mainly secondary to increased risk of tachyarrhythmias. One of the major arrhythmias commonly encountered in this subset of cardiac patients is AF. Similar to the general population, the risk of AF increases with advancing age, and is mainly secondary to the abnormal anatomy, abnormal pressure and volume parameters in the hearts of these patients and to the increased scarring and inflammation seen in the left atrium following multiple surgical procedures...
December 2017: Arrhythmia & Electrophysiology Review
https://www.readbyqxmd.com/read/29319785/diagnostic-accuracy-and-prognostic-value-of-simultaneous-hybrid-18f-fluorodeoxyglucose-positron-emission-tomography-magnetic-resonance-imaging-in-cardiac-sarcoidosis
#16
Eleanor C Wicks, Leon J Menezes, Anna Barnes, Saidi A Mohiddin, Neha Sekhri, Joanna C Porter, Helen L Booth, Emily Garrett, Riyaz S Patel, Menelaos Pavlou, Ashley M Groves, Perry M Elliott
Aims: Cardiac death is the leading cause of mortality in patients with sarcoidosis, yet cardiac involvement often remains undetected. Cardiovascular magnetic resonance imaging (CMR) and 18F-fluorodeoxyglucose (FDG)-positron emission tomography (PET) have been used to diagnose cardiac sarcoidosis (CS) yet never simultaneously in a cohort. This study sought to assess the diagnostic and prognostic utility of simultaneous hybrid cardiac PET/MR. Methods and results: Fifty-one consecutive patients with suspected CS (age 50 ± 13 years, 31 males) underwent simultaneous PET/MR following a high-fat/low-carbohydrate diet and 12-h fast...
January 8, 2018: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29315621/directly-assessing-interpersonal-rsa-influences-in-the-frequency-domain-an-illustration-with-generalized-partial-directed-coherence
#17
Siwei Liu, Kathleen M Gates, Alysia Y Blandon
Despite recent research indicating that interpersonal linkage in physiology is a common phenomenon during social interactions, and the well-established role of respiratory sinus arrhythmia (RSA) in socially facilitative physiological regulation, little research has directly examined interpersonal influences in RSA, perhaps due to methodological challenges in analyzing multivariate RSA data. In this article, we aim to bridge this methodological gap by introducing a new method for quantifying interpersonal RSA influences...
January 8, 2018: Psychophysiology
https://www.readbyqxmd.com/read/29313903/cardiovascular-complications-after-non-cardiac-surgery
#18
REVIEW
D Sellers, C Srinivas, G Djaiani
Cardiac complications are common after non-cardiac surgery. Peri-operative myocardial infarction occurs in 3% of patients undergoing major surgery. Recently, however, our understanding of the epidemiology of these cardiac events has broadened to include myocardial injury after non-cardiac surgery, diagnosed by an asymptomatic troponin rise, which also carries a poor prognosis. We review the causation of myocardial injury after non-cardiac surgery, with potential for prevention and treatment, based on currently available international guidelines and landmark studies...
January 2018: Anaesthesia
https://www.readbyqxmd.com/read/29285538/carfilzomib-associated-cardiovascular-adverse-events-a-systematic-review-and-meta-analysis
#19
Adam J Waxman, Suparna Clasen, Wei-Ting Hwang, Alfred Garfall, Dan T Vogl, Joseph Carver, Rupal O'Quinn, Adam D Cohen, Edward A Stadtmauer, Bonnie Ky, Brendan M Weiss
Importance: Cardiovascular adverse events (CVAE) with carfilzomib in patients with multiple myeloma can be potentially life-threatening and remain incompletely characterized. We performed the first systematic review and meta-analysis of carfilzomib-associated CVAE. Objective: To determine the incidence of carfilzomib-associated CVAE and to compare the rates of carfilzomib CVAE among different doses and companion therapies. Data Sources: PubMed, EMBASE, Web of Science, and clinicaltrials...
December 28, 2017: JAMA Oncology
https://www.readbyqxmd.com/read/29279413/association-between-diastolic-blood-pressure-during-pediatric-in-hospital-cardiopulmonary-resuscitation-and-survival
#20
Robert A Berg, Robert M Sutton, Ron W Reeder, John T Berger, Christopher J Newth, Joseph A Carcillo, Patrick S McQuillen, Kathleen L Meert, Andrew R Yates, Rick E Harrison, Frank W Moler, Murray M Pollack, Todd C Carpenter, David L Wessel, Tammara L Jenkins, Daniel A Notterman, Richard Holubkov, Robert F Tamburro, J Michael Dean, Vinay M Nadkarni
Background -Based on laboratory cardiopulmonary resuscitation (CPR) investigations and limited adult data demonstrating that survival depends on attaining adequate arterial diastolic blood pressure (DBP) during CPR, American Heart Association recommends using BP to guide pediatric CPR. However, evidence-based BP targets during pediatric CPR remain an important knowledge gap for CPR guidelines. Methods -All children ≥37 weeks gestation and <19 years old in Collaborative Pediatric Critical Care Research Network intensive care units with chest compressions for ≥1 minute and invasive arterial blood pressure monitoring prior to and during CPR between July 1, 2013 and June 31, 2016 were included...
December 26, 2017: Circulation
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