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Cardiac defibrillators

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https://www.readbyqxmd.com/read/28933249/anesthetic-management-of-laser-lead-extraction-for-cardiovascular-implantable-electronic-devices
#1
Meena Bhatia, Payam Safavi-Naeini, Mehdi Razavi, Charles D Collard, Daniel A Tolpin, James M Anton
Cardiovascular implantable electronic devices (CIEDs) play a significant role in the modern management of cardiovascular disease. CIEDs include implantable pacemakers (PMs), implantable cardioverter-defibrillators (ICDs), and cardiac resynchronization therapy (CRT) devices. These devices improve the quality of life of their recipients and help reduce the incidence of sudden cardiac death. Traditionally, CIEDs have been reliant on the use of transvenous endocardial leads to directly connect with the heart. Over time, these endovascular leads may become endothelialized rendering removal extremely difficult...
September 1, 2017: Seminars in Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28928258/implantable-cardiac-defibrillator-infections-the-emerging-importance-of-mycobacterium-fortuitum
#2
Menfil Orellana-Barrios, David A Sotello Aviles, Olusegun Oyenuga, Kenneth Nugent
Infection is a clinically relevant complication associated with intracardiac devices. Atypical mycobacteria, particularly Mycobacterium fortuitum, have been increasingly implicated in cardiovascular implantable electronic device (CIED) infections. We present a case of M. fortuitum CIED infection in a patient with ischaemic cardiomyopathy occurring approximately 3 weeks after insertion. The recognition and adequate treatment, including device removal, tissue sampling and the determination of antimicrobial sensitivities, are essential in the proper management of these patients...
September 19, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28923417/spanish-implantable-cardioverter-defibrillator-registry-13th-official-report-of-the-spanish-society-of-cardiology-electrophysiology-and-arrhythmias-section-2016
#3
Javier Alzueta, Ignacio Fernández-Lozano
INTRODUCTION AND OBJECTIVES: To report the findings of the Spanish Implantable Cardioverter-defibrillator Registry for 2016 compiled by the Electrophysiology and Arrhythmias Section of the Spanish Society of Cardiology. METHODS: Prospective data were voluntarily recorded on a data collection form and send to the Spanish Society of Cardiology by each implantation team. RESULTS: Overall, 5673 device implantations were reported, representing 85% of the estimated total number of implantations...
September 8, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28923243/sensitivity-and-specificity-of-two-different-automated-external-defibrillators
#4
Johan Israelsson, Burkard von Wangenheim, Kristofer Årestedt, Birgitta Semark, Kristina Schildmeijer, Jörg Carlsson
AIM: The aim was to investigate the clinical performance of two different types of automated external defibrillators (AEDs). METHODS: Three investigators reviewed 2938 rhythm analyses performed by AEDs in 240 consecutive patients (median age 72, q1-q3=62-83) who had suffered cardiac arrest between January 2011 and March 2015. Two different AEDs were used (AED A n=105, AED B n=135) in-hospital (n=91) and out-of-hospital (n=149). RESULTS: Among 194 shockable rhythms, 17 (8...
September 15, 2017: Resuscitation
https://www.readbyqxmd.com/read/28920564/intentional-overdose-of-the-novel-anti-epileptic-drug-eslicarbazepine-presenting-with-recurrent-seizures-and-ventricular-dysrhythmias
#5
Jesse Thompson, James D Powell, Daniel H Ovakim
Eslicarbazepine is a novel anti-epileptic agent indicated for the treatment of partial-onset seizures. We present the case of an 18 year old female that presented to the Emergency Department four hours after a reported intentional ingestion of an estimated 5600 mg of eslicarbazepine. Although initially hemodynamically stable and neurologically normal, shortly after arrival she developed confusion, rigidity and clonus, followed by recurrent seizures, hypoxemia and cardiac arrest which responded to cardiopulmonary resuscitation and wide complex tachycardia requiring defibrillation...
September 18, 2017: CJEM
https://www.readbyqxmd.com/read/28919378/sudden-death-mechanisms-in-non-ischemic-cardiomyopathies-insights-gleaned-from-clinical-implantable-cardioverter-defibrillator-trials
#6
Benjamin A Steinberg, Siva K Mulpuru, James C Fang, Bernard J Gersh
Sudden cardiac death (SCD) represents a major cause of death among patients with heart failure. While scar-based, macro-reentrant ventricular tachycardia and ventricular fibrillation (VT/VF) is the primary etiology for SCD among patients with ischemic cardiomyopathy, a more diverse set of mechanisms and substrates are likely at play for the diverse group of patients characterized by non-ischemic, dilated cardiomyopathy (NICM). These causes may include scar-based re-entry, but also neurohormonal stimulation (sympathetic, parasympathetic, renin-angiotensin-aldosterone), inflammation, and non-arrhythmic processes occurring in the context of a genetic predisposition...
September 14, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28918305/single-center-experience-with-percutaneous-extraction-of-cardiac-implantable-electric-devices
#7
Ayako Okada, Morio Shoda, Hiroaki Tabata, Wataru Shoin, Hideki Kobayashi, Takahiro Okano, Koji Yoshie, Yasutaka Oguchi, Takahiro Takeuchi, Ken Kato, Koichiro Kuwahara
BACKGROUND: The estimated incidence of infected cardiac implantable electric devices (CIED) has recently increased to 1-2% in Japan. Extraction of long-term implanted devices is generally difficult. There are few reports about lead extraction in Japan. We describe our experience with and outcomes of lead extraction using excimer lasers, mechanical sheaths, and manual extraction. METHODS: We retrospectively analyzed the characteristics, types of devices, and indications for extraction in 29 patients with 67 leads who required CIED lead extraction at Shinshu University Hospital between April 2014 and October 2016...
September 13, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28917561/cardiac-rhythm-analysis-during-ongoing-cardiopulmonary-resuscitation-using-the-analysis-during-compressions-with-fast-reconfirmation-adc-fr-technology
#8
Francesca Fumagalli, Annemarie E Silver, Qing Tan, Naveed Zaidi, Giuseppe Ristagno
BACKGROUND: Pauses in chest compressions (CCs) have a negative association with survival from cardiac arrest (CA). ECG rhythm analysis and defibrillator charging are significant contributors to CC pauses. OBJECTIVE: Accuracy of the "Analysis During Compressions with Fast Reconfirmation" (ADC-FR) algorithm, which features automated rhythm analysis and charging during CCs to reduce CC pauses, was retrospectively determined in a large database of ECGs from 2,701 out-of-hospital CAs...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28917559/predictors-and-outcomes-of-cardiac-resynchronization-therapy-extended-to-the-second-generator
#9
Xuping Li, Dachun Yang, Fred Kusumoto, Win-Guang Shen, Siva Mulpuru, Shenghua Zhou, Jinjun Liang, Gang Wu, Mei Yang, Jin-Qu Liu, Paul A Friedman, Yong-Mei Cha
BACKGROUND: A proportion of patients who receive cardiac resynchronization therapy (CRT) with defibrillator (CRT-D) live to receive a second generator. Controversy exists on whether an implantable cardioverter-defibrillator (ICD) should be offered to patients who have normalized or near normalized left ventricular ejection fraction (LVEF) at the time of generator replacement (GR). OBJECTIVE: To evaluate incidence of appropriate ICD therapy after CRT-D GR. METHODS: This series involved 1,026 consecutive patients who underwent CRT-D implant between January 2002 and December 2012...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28917556/increased-risk-of-ventricular-arrhythmias-in-survivors-of-out-of-hospital-cardiac-arrest-with-chronic-total-coronary-occlusion
#10
Sing-Chien Yap, Rafi Sakhi, Dominic Amj Theuns, Yunus E Yasar, Rohit E Bhagwandien, Roberto Diletti, Felix Zijlstra, Tamas Szili-Torok
BACKGROUND: A chronic total occlusion (CTO) is common in out-of-hospital cardiac arrest (OHCA) survivors with coronary artery disease. It is unclear whether a CTO contributes to ventricular arrhythmias in this population. OBJECTIVE: This study sought to evaluate the impact of unrevascularized CTO's on the occurrence of appropriate implantable cardioverter-defibrillator (ICD) therapy and all-cause mortality in OHCA survivors with coronary artery disease. METHODS: This was a retrospective study that included all consecutive OHCA survivors with coronary artery disease who received an ICD from 1999 until 2015...
September 13, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28917495/complications-associated-with-implantable-cardioverter-defibrillators-in-adults-with-congenital-heart-disease-or-left-ventricular-noncompaction-cardiomyopathy-from-the-ncdr-%C3%A2-implantable-cardioverter-defibrillator-registry
#11
Marye J Gleva, Yongfei Wang, Jeptha P Curtis, Charles I Berul, Charles B Huddleston, Jeanne E Poole
Patients with childhood heart disease are living longer and entering adulthood, and may undergo implantable cardioverter-defibrillator (ICD) implantation to reduce the risk of sudden death. We evaluated the characteristics of adult patients with congenital heart disease or left ventricular noncompaction cardiomyopathy (LVNC) in the National Cardiovascular Disease Registry ICD Registry and determined ICD-related in-hospital complications. Patients with LVNC or transposition of the great arteries, tetralogy of Fallot, Ebstein's anomaly, atrial septal defect, ventricular septal defect, or common ventricle were identified in the registry...
August 8, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28916511/failure-to-treat-life-threatening-ventricular-tachyarrhythmias-in-contemporary-implantable-cardioverter-defibrillators-implications-for-strategic-programming
#12
Anna Margrethe Thøgersen, Jacob Moesgaard Larsen, Jens Brock Johansen, Moeen Abedin, Charles D Swerdlow
BACKGROUND: In clinical trials, manufacturer-specific, strategic programming of implantable cardioverter-defibrillators (ICDs), including faster detection rates, reduces unnecessary therapy but permits therapy for ventricular tachycardia/ventricular fibrillation (VF). Present consensus recommends a generic rate threshold between 185 and 200 beats per minute, which exceeds the rate tested in clinical trials for some manufacturers. In a case series, we sought to determine the relationship between programmed parameters and failure of modern ICDs to treat VF...
September 2017: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/28912183/arrhythmogenic-cardiomyopathy
#13
REVIEW
Domenico Corrado, Cristina Basso, Daniel P Judge
Arrhythmogenic cardiomyopathy is an inherited heart muscle disorder, predisposing to sudden cardiac death, particularly in young patients and athletes. Pathological features include loss of myocytes and fibrofatty replacement of right ventricular myocardium; biventricular involvement is often observed. It is a cell-to-cell junction cardiomyopathy, typically caused by genetically determined abnormalities of cardiac desmosomes, which leads to detachment of myocytes and alteration of intracellular signal transduction...
September 15, 2017: Circulation Research
https://www.readbyqxmd.com/read/28912181/hypertrophic-cardiomyopathy-genetics-pathogenesis-clinical-manifestations-diagnosis-and-therapy
#14
REVIEW
Ali J Marian, Eugene Braunwald
Hypertrophic cardiomyopathy (HCM) is a genetic disorder that is characterized by left ventricular hypertrophy unexplained by secondary causes and a nondilated left ventricle with preserved or increased ejection fraction. It is commonly asymmetrical with the most severe hypertrophy involving the basal interventricular septum. Left ventricular outflow tract obstruction is present at rest in about one third of the patients and can be provoked in another third. The histological features of HCM include myocyte hypertrophy and disarray, as well as interstitial fibrosis...
September 15, 2017: Circulation Research
https://www.readbyqxmd.com/read/28911515/chronic-chagas-heart-disease%C3%A2-management-from-etiology-to-cardiomyopathy-treatment
#15
REVIEW
Edimar Alcides Bocchi, Reinaldo Bulgarelli Bestetti, Mauricio Ibrahim Scanavacca, Edecio Cunha Neto, Victor Sarli Issa
Trypanosoma cruzi (T. cruzi) infection is endemic in Latin America and is becoming a worldwide health burden. It may lead to heterogeneous phenotypes. Early diagnosis of T. cruzi infection is crucial. Several biomarkers have been reported in Chagas heart disease (ChHD), but most are nonspecific for T. cruzi infection. Prognosis of ChHD patients is worse compared with other etiologies, with sudden cardiac death as an important mode of death. Most ChHD patients display diffuse myocarditis with fibrosis and hypertrophy...
September 19, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28911514/defibrillation-for-ventricular-fibrillation-a-shocking-update
#16
REVIEW
Graham Nichol, Michael R Sayre, Federico Guerra, Jeanne Poole
Cardiac arrest is defined as the termination of cardiac activity associated with loss of consciousness, of spontaneous breathing, and of circulation. Sudden cardiac arrest and sudden cardiac death (SCD) are terms often used interchangeably. Most patients with out-of-hospital cardiac arrest have shown coronary artery disease or symptoms during the hour before the event. Cardiac arrest is potentially reversible by cardiopulmonary resuscitation, defibrillation, cardioversion, cardiac pacing, or treatments targeted at the underlying disease (e...
September 19, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28904721/septal-alcoholization-in-hypertrophic-cardiomyopathy-about-11-cases
#17
Yibar Kambiré, Georges Rosario Christian Millogo, Claire Dauphin, Jean-René Lusson
Outcomes of septal alcoholization in hypertrophic obstructive cardiomyopathy are not enough studied in all centers. The purpose of this study was to determine the outcomes of septal alcoholization in hypertrophic obstructive cardiomyopathy in our hospital. A retrospective and prospective descriptive study focused on all patients aged at least 18 years treated by alcohol septal ablation between July 2005 and June 2010 in the cardiology unit of Clermont-Ferrand teaching Hospital. The inclusion criteria were, hypertrophic obstructive cardiomyopathy with left ventricular outflow tract obstruction ≥ 50 mmHg, symptomatic despite optimal medical therapy...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28903056/quality-of-bystander-cardiopulmonary-resuscitation-during-real-life-out-of-hospital-cardiac-arrest
#18
Tore Gyllenborg, Asger Granfeldt, Freddy Lippert, Ingunn Skogstad Riddervold, Fredrik Folke
BACKGROUND: Cardiopulmonary resuscitation (CPR) can increase survival in out-of-hospital cardiac arrest (OHCA). However, little is known about bystander CPR quality in real-life OHCA. AIM: To describe bystander CPR quality based on automated external defibrillator (AED) CPR process data during OHCA and compare it with the European Resuscitation Council 2010 and 2015 Guidelines. METHODS: We included OHCA cases from the Capital Region, Denmark, (2012-2016) where a Zoll AED was used before ambulance arrival...
September 10, 2017: Resuscitation
https://www.readbyqxmd.com/read/28902650/a-rare-cause-of-cyanosis-and-hypoxia-that-should-not-be-forgotten-after-implantable-cardioverter-defibrillator-implantation
#19
Uğur Canpolat, Nihan Bahadır, Levent Şahiner, Kudret Aytemir
Transvenous pacemaker or implantable cardioverter defibrillator (ICD) implantation procedures are usually performed under local anesthetic, and prilocaine is the most common agent to be used. The data regarding methemoglobinemia after cardiac device implantation are scarce. Thus, presently described is the case of a 47-year-old female patient with arrhythmogenic right ventricular cardiomyopathy/dysplasia who underwent ICD implantation for secondary prophylaxis and developed cyanosis as a result of prilocaine-associated methemoglobinemia...
September 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28901546/return-of-spontaneous-circulation-and-long-term-survival-according-to-feedback-provided-by-automated-external-defibrillators
#20
M Agerskov, M B Hansen, A M Nielsen, T P Møller, M Wissenberg, L S Rasmussen
BACKGROUND: We aimed to investigate the effect of automated external defibrillator (AED) feedback mechanisms on survival in out-of-hospital cardiac arrest (OHCA) victims. In addition, we investigated converting rates in patients with shockable rhythms according to AED shock waveforms and energy levels. METHODS: We collected data on OHCA occurring between 2011 and 2014 in the Capital Region of Denmark where an AED was applied prior to ambulance arrival. Patient data were obtained from the Danish Cardiac Arrest Registry and medical records...
September 13, 2017: Acta Anaesthesiologica Scandinavica
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