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Sudden cardiac arrest

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https://www.readbyqxmd.com/read/28643441/coronary-artery-anomalies-a-multidisciplinary-approach-to-shape-the-landscape-of-a-challenging-problem
#1
Silvana Molossi, Hitesh Agrawal
Coronary artery anomalies, particularly anomalous aortic origin of a coronary artery with an interarterial course, are associated with sudden cardiac arrest or death in the young. There is paucity of data on risk stratification and longitudinal follow up is lacking in these patients. Collaboration and sharing of data among specialized centers might shed much needed light in this complex problem.
June 23, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28635305/factors-modifying-performance-of-a-novel-citizen-text-message-alert-system-in-improving-survival-of-out-of-hospital-cardiac-arrest
#2
Ruud Wm Pijls, Patty J Nelemans, Braim M Rahel, Anton Pm Gorgels
AIMS: Recently we found that the text message alert system increases survival of sudden out-of-hospital cardiac arrest. The aim of the present study is to explore the contribution of the system to survival specifically in resuscitation settings with prolonged delay of start of resuscitation. METHODS AND RESULTS: Data were used from consecutive patients resuscitated for out-of-hospital cardiac arrest during a two-year period in the Dutch province Limburg. Survival of 291 cases with out-of-hospital cardiac arrest where one or more volunteers attended (Scenario 2) was compared with survival of 131 cases with out-of-hospital cardiac arrest where no volunteers attended and only standard care was given (Scenario 1)...
March 1, 2017: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/28632280/implantable-cardioverter-defibrillators-for-primary-prevention-in-patients-with-ischemic-or-nonischemic-cardiomyopathy-a-systematic-review-and-meta-analysis
#3
Michalina Kolodziejczak, Felicita Andreotti, Mariusz Kowalewski, Antonino Buffon, Marco Matteo Ciccone, Gianfranco Parati, Pietro Scicchitano, Julia M Uminska, Stefano De Servi, Kevin P Bliden, Jacek Kubica, Alessandro Bortone, Filippo Crea, Paul Gurbel, Eliano P Navarese
Background: Implantable cardioverter-defibrillators (ICDs) have a role in preventing cardiac arrest in patients at risk for life-threatening ventricular arrhythmias. Purpose: To compare ICD therapy with conventional care for the primary prevention of death of various causes in adults with ischemic or nonischemic cardiomyopathy. Data Sources: MEDLINE, Cochrane Central Register of Controlled Trials, Google Scholar, and EMBASE databases, as well as several Web sites, from 1 April 1976 through 31 March 2017...
June 27, 2017: Annals of Internal Medicine
https://www.readbyqxmd.com/read/28621042/clinical-evaluation-of-anomalous-aortic-origin-of-a-coronary-artery-aaoca
#4
Silvana Molossi, Hitesh Agrawal
The clinical evaluation of patients with an anomalous aortic origin of a coronary artery (AAOCA), a congenital abnormality of the origin or course of a coronary artery that arises from the aorta, is challenging given its first presentation being sudden cardiac arrest in about half of the patients. Symptoms of chest pain, shortness of breath and syncope during exertion should be of concern in evaluating young athletes and nonathletes. The lack of abnormal signs on the physical exam and electrocardiogram further adds to the difficulty in establishing the diagnosis...
June 16, 2017: Congenital Heart Disease
https://www.readbyqxmd.com/read/28617967/holter-monitored-sudden-cardiac-arrest-after-atrioventricular-junction-ablation
#5
Victor Waldmann, Eloi Marijon, Nicolas Combes
We present a case of sudden cardiac arrest seven hours after radiofrequency ablation of the atrioventricular junction for symptomatic permanent atrial fibrillation unresponsive to medical therapy. The Holter monitoring revealed a progressive increasing of QT interval after the procedure, highlighting the repolarization instability after acute changes in heart rates associated with modification of ventricular activation, leading to occurrence of short coupling interval ventricular extra beats and finally to a "Torsade de Pointes"...
June 15, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28616642/-identification-of-common-locations-of-out-of-hospital-cardiac-arrests-in-a%C3%A2-german-metropolis
#6
C Hanefeld, F Rosbund, A Kloppe, C Kloppe
BACKGROUND: Most patients who suffer a sudden cardiac arrest initially have a shockable rhythm. Fast defibrillation and correctly performed cardiopulmonary resuscitation (CPR) are key factors for patient survival. These can be carried out by bystanders if an automated external defibrillator (AED) is available even in the absence of emergency services. AIM: The place and time of CPRs in a German city were investigated and the strategic placement of emergency medical services and AEDs necessary were evaluated...
June 14, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28615216/emergency-response-facilities-including-primary-and-secondary-prevention-strategies-across-79-professional-football-clubs-in-england
#7
Aneil Malhotra, Harshil Dhutia, Sabiha Gati, Tee-Joo Yeo, Gherardo Finnochiaro, Tracey Keteepe-Arachi, Thomas Richards, Mike Walker, Robin Birt, David Stuckey, Laurence Robinson, Maite Tome, Ian Beasley, Michael Papadakis, Sanjay Sharma
AIM: To assess the emergency response planning and prevention strategies for sudden cardiac arrest (SCA) across a wide range of professional football clubs in England. METHODS: A written survey was sent to all professional clubs in the English football league, namely the Premiership, Championship, League 1 and League 2. Outcomes included: (1) number of clubs performing cardiac screening and frequency of screening; (2) emergency planning and documentation; (3) automated external defibrillator (AED) training and availability; and (4) provision of emergency services at sporting venues...
June 14, 2017: British Journal of Sports Medicine
https://www.readbyqxmd.com/read/28611095/exercise-related-out-of-hospital-cardiac-arrest-among-the-general-population-in-the-era-of-public-access-defibrillation-a-population-based-observation-in-japan
#8
Kosuke Kiyohara, Chika Nishiyama, Takeyuki Kiguchi, Tatsuya Nishiuchi, Yasuyuki Hayashi, Taku Iwami, Tetsuhisa Kitamura
BACKGROUND: Exercise can trigger sudden cardiac arrest. Early initiation of cardiopulmonary resuscitation and automated external defibrillator use by laypersons could maximize the survival rate following exercise-related out-of-hospital cardiac arrest (OHCA). METHODS AND RESULTS: OHCA data between 2005 and 2012 were obtained from a prospective population-based OHCA registry in Osaka Prefecture. Patients with OHCA of presumed cardiac origin and occurring before emergency medical service personnel arrival were included...
June 13, 2017: Journal of the American Heart Association
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
#9
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/28606196/prescribing-an-automated-external-defibrillator-for-children-at-increased-risk-of-sudden-arrhythmic-death
#10
Karen A McLeod, Eileen Fern, Fiona Clements, Ruth McGowan
BACKGROUND: Automated external defibrillators can be life-saving in out-of-hospital cardiac arrest. OBJECTIVE: Our aim was to review our experience of prescribing automated external defibrillators for children at increased risk of sudden arrhythmic death. METHODS: We reviewed all automated external defibrillators issued by the Scottish Paediatric Cardiac Electrophysiology Service from 2005 to 2015. All parents were given resuscitation training according to the Paediatric Resuscitation Guidelines, including the use of the automated external defibrillator...
June 13, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28602955/etiological-diagnoses-of-out-of-hospital-cardiac-arrest-survivors-admitted-to-the-intensive-care-unit-insights-from-a-french-registry
#11
Guillaume Geri, Olivier Passouant, Florence Dumas, Wulfran Bougouin, Benoit Champigneulle, Michel Arnaout, Jonathan Chelly, Jean-Daniel Chiche, Olivier Varenne, Lucie Guillemet, Frederic Pène, Victor Waldmann, Jean-Paul Mira, Eloi Marijon, Alain Cariou
BACKGROUND: Respective proportions of final etiologies are disparate in cohorts of cardiac arrest patients, depending on examined population and diagnostic algorithms. In particular, prevalence and characteristics of sudden unexplained death syndrome (SUDS) are debated. We aimed at describing etiologies in a large cohort of aborted out-of-hospital cardiac arrest (OHCA) patients, in order to assess prevalence and outcome of SUDS. PATIENTS AND METHODS: We analyzed data from our prospective registry of successfully resuscitated OHCA patients admitted to a cardiac arrest centre between January 2002 and December 2014...
June 8, 2017: Resuscitation
https://www.readbyqxmd.com/read/28600387/genetic-testing-in-the-evaluation-of-unexplained-cardiac-arrest-from-the-casper-cardiac-arrest-survivors-with-preserved-ejection-fraction-registry
#12
Greg Mellor, Zachary W M Laksman, Rafik Tadros, Jason D Roberts, Brenda Gerull, Christopher S Simpson, George J Klein, Jean Champagne, Mario Talajic, Martin Gardner, Christian Steinberg, Laura Arbour, David H Birnie, Paul Angaran, Richard Leather, Shubhayan Sanatani, Vijay S Chauhan, Colette Seifer, Jeffrey S Healey, Andrew D Krahn
BACKGROUND: Unexplained cardiac arrest may be because of an inherited arrhythmia syndrome. The role of genetic testing in cardiac arrest survivors without a definite clinical phenotype is unclear. METHODS AND RESULTS: The CASPER (Cardiac Arrest Survivors with Preserved Ejection Fraction Registry) is a large registry of cardiac arrest survivors where initial assessment reveals normal coronary arteries, left ventricular function, and resting ECG. Of 375 cardiac arrest survivors in CASPER from 2006 to 2015, 174 underwent genetic testing...
June 2017: Circulation. Cardiovascular Genetics
https://www.readbyqxmd.com/read/28584814/predictors-of-extracorporeal-membrane-oxygenation-support-for-children-with-acute-myocarditis
#13
Han-Ping Wu, Mao-Jen Lin, Wen-Chieh Yang, Kang-Hsi Wu, Chun-Yu Chen
The clinical presentation of acute myocarditis in children may range from asymptomatic to sudden cardiac arrest. This study analyzed the clinical spectrum of acute myocarditis in children to identify factors that could aid primary care physicians to predict the need for extracorporeal membrane oxygenation (ECMO) earlier and consult the pediatric cardiologist promptly. Between October 2011 and September 2016, we retrospectively analyzed 60 patients aged 18 years or younger who were admitted to our pediatric emergency department with a definite diagnosis of acute myocarditis...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28584071/scn5a-genetic-polymorphisms-associated-with-increased-defibrillator-shocks-in-brugada-syndrome
#14
Pattarapong Makarawate, Narumol Chaosuwannakit, Suda Vannaprasaht, Dujdao Sahasthas, Seok Hwee Koo, Edmund Jon Deoon Lee, Wichittra Tassaneeyakul, Hector Barajas-Martinez, Dan Hu, Kittisak Sawanyawisuth
BACKGROUND: Brugada syndrome (BrS) is an inherited primary arrhythmia disorder leading to sudden cardiac arrest. SCN5A, encoding the α-subunit of the cardiac sodium channel (Nav1.5), is the most common pathogenic gene of BrS. An implantable cardioverter defibrillator (ICD) is the standard treatment for secondary prevention. This study aimed to evaluate association of the SCN5A variant with this cardiac conduction disturbance and appropriate ICD shock therapy in Thai symptomatic BrS patients with ICD implants...
June 5, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28583685/usefulness-of-the-r-wave-sign-as-a-predictor-for-ventricular-tachyarrhythmia-in-patients-with-brugada-syndrome
#15
Ahmed A Y Ragab, Charlotte A Houck, Lisette J M E van der Does, Eva A H Lanters, Danielle E Burghouwt, Agnes J Q M Muskens, Natasja M S de Groot
Brugada syndrome (BrS) is an autosomal dominant channelopathy which is responsible for a large number of sudden cardiac deaths in young subjects without structural abnormalities. The most challenging step in management of patients with BrS is identifying who is at risk for developing malignant ventricular tachyarrhythmia (VTA). In patients with BrS, conduction delay in the right ventricular outflow tract (RVOT) causes a prominent R wave in lead aVR. This electrocardiographic parameter can be useful to detect these high-risk patients...
May 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28570361/catecholaminergic-polymorphic-ventricular-tachycardia
#16
Jessica J Wall, Ramesh V Iyer
Catecholaminergic polymorphic ventricular tachycardia is a rare cause of exercise-induced arrhythmia and sudden cardiac death in the pediatric patient. This arrhythmia is difficult to diagnose in the emergency department, given the range of presentations; thus, a familiarity with and high index of suspicion for this pathology are crucial. Furthermore, recognition of the characteristic electrocardiogram findings and knowledge of the management of the symptomatic patient are necessary, given the risk of arrhythmia recurrence and cardiac arrest...
June 2017: Pediatric Emergency Care
https://www.readbyqxmd.com/read/28569435/the-new-kids-on-the-block-of-arrhythmogenic-disorders-short-qt-syndrome-and-early-repolarization
#17
REVIEW
Andrea Mazzanti, Katherine Underwood, Dmitriy Nevelev, Shanna Kofman, Silvia G Priori
Short QT Syndrome (SQTS) is a one of the rarest inheritable cardiac channelopathy, characterized by an accelerated cardiac repolarization, which is also the substrate for the development of life-threatening ventricular arrhythmias. Up to this date, fewer than 200 SQTS cases have been reported in the literature worldwide. Patients with SQTS may experience a cardiac arrest as early as in the neonatal period or as late as 80 years old. The cumulative probability of experiencing a cardiac arrest by the fifth decade of life approaches 40%, highlighting the importance of early recognition and management...
June 1, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28569282/do-not-attempt-cardiopulmonary-resuscitation-decisions-joint-guidance
#18
R Campbell
Since its introduction in the 1960s as a treatment to restart the heart after sudden cardiac arrest from a heart attack, attempts at cardiopulmonary resuscitation have become more common in other clinical situations. Cardiopulmonary resuscitation can be a lifesaving treatment, with the likelihood of recovery varying greatly depending on individual circumstances; however, overall, the proportion of people who survive following cardiopulmonary resuscitation is relatively low. Anticipatory decisions were recognised as being the best way of ensuring that cardiopulmonary resuscitation was not attempted against individuals' wishes...
March 2017: Journal of the Royal College of Physicians of Edinburgh
https://www.readbyqxmd.com/read/28545784/pro-and-antiarrhythmic-actions-of-sulfonylureas-mechanistic-and-clinical-evidence
#19
REVIEW
Charles E Leonard, Sean Hennessy, Xu Han, David S Siscovick, James H Flory, Rajat Deo
Sulfonylureas are the most commonly used second-line drug class for treating type 2 diabetes mellitus (T2DM). While the cardiovascular safety of sulfonylureas has been examined in several trials and nonrandomized studies, little is known of their specific effects on sudden cardiac arrest (SCA) and related serious arrhythmic outcomes. This knowledge gap is striking, because persons with DM are at increased risk of SCA. In this review, we explore the influence of sulfonylureas on the risk of serious arrhythmias, with specific foci on ischemic preconditioning, cardiac excitability, and serious hypoglycemia as putative mechanisms...
May 22, 2017: Trends in Endocrinology and Metabolism: TEM
https://www.readbyqxmd.com/read/28536668/brugada-syndrome-in-a-patient-with-vascular-ehlers-danlos-syndrome-sudden-death-risk-amplified
#20
Jason D'Souza, Divyanshu Malhotra, Aditya Goud, Chanukya Dahagam, George Everett
The vast majority of sudden cardiac arrests occur in patients with structural heart disease and in approximately 10% of the cases, it can occur in those with structurally normal hearts. Brugada syndrome is an autosomal dominant sodium channelopathy that has been implicated in sudden deaths. Given their low prevalence, our knowledge about Brugada syndrome is still evolving. Apart from schizophrenia, there have been no reports of associated medical conditions. We recently encountered a patient with vascular Ehlers-Danlos syndrome who was also found to have Brugada syndrome...
April 19, 2017: Curēus
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