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Implantable cardiac defibrillator

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https://www.readbyqxmd.com/read/28811391/cardiac-implantable-electronic-device-lead-extraction-using-the-lead-locking-device-system-keeping-it-simple-safe-and-inexpensive-with-mechanical-tools-and-local-anesthesia
#1
Antonis S Manolis, Georgios Georgiopoulos, Sofia Metaxa, Spyridon Koulouris, Dimitris Tsiachris
OBJECTIVE: We have previously reported our successful approach for percutaneous cardiac implantable electronic device (CIED) lead extraction using inexpensive tools, which we have continued over the years. Herein we report the results of the systematic use of a unique stylet, the lead-locking device (LLD), which securely locks the entire lead lumen, aided with non-powered telescoping sheaths in 54 patients to extract 98 CIED leads. METHODS: This prospective observational clinical study included 38 men and 16 women aged 68...
August 11, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28808515/palpitations-as-a-presenting-feature-of-multisystem-sarcoidosis
#2
Richie Manikat, Julieta Gilson, Mahesh Krishnamurthy, Koroush Khalighi
Introduction: Sarcoidosis is described as a systemic condition characterized by non-caseating granulomas in multiple organs. In this report, we present an unusual manifestation of cardiac sarcoidosis and review management strategies. Case presentation: A 29-year-old African-American man presented with weight loss, fatigue, dyspnea, palpitations, night sweats, painless left eye redness and bilateral leg pain over the course of three months. His physical exam revealed left conjunctival congestion and bilateral crackles on auscultation...
July 2017: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/28797352/subcutaneous-implantable-cardioverter-defibrillator-finding-a-place%C3%A2-in-sudden-cardiac-death-prevention-emerging-or-emerged
#3
EDITORIAL
Jeanne E Poole, Jordan M Prutkin
No abstract text is available yet for this article.
August 15, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28794139/denervated-myocardium-is-preferentially-associated-with-sudden-cardiac-arrest-in-ischemic-cardiomyopathy-a-pilot-competing-risks-analysis-of-cause-specific-mortality
#4
James A Fallavollita, Jonathan D Dare, Randolph L Carter, Sunil Baldwa, John M Canty
BACKGROUND: Previous studies have identified multiple risk factors that are associated with total cardiac mortality. Nevertheless, identifying specific factors that distinguish patients at risk of arrhythmic death versus heart failure could better target patients likely to benefit from implantable cardiac defibrillators, which have no impact on nonsudden cardiac death. METHODS AND RESULTS: We performed a pilot competing risks analysis of the National Institutes of Health-sponsored PAREPET trial (Prediction of Arrhythmic Events with Positron Emission Tomography)...
August 2017: Circulation. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28781823/inappropriate-shock-in-a-subcutaneous-cardiac-defibrillator-due-to-residual-air
#5
Shawn Lee, Nektarios Souvaliotis, Davendra Mehta, Ranjit Suri
Inappropriate shock due to residual air in subcutaneous implantable cardiac defibrillators is not a well-known complication. Obtaining overpenetrated X-rays, recognizing electrocardiogram findings, limiting blunt finger dissection, and switching to sense at another vector are techniques which might lead to avoidance of unnecessary wound exploration or device removal.
August 2017: Clinical Case Reports
https://www.readbyqxmd.com/read/28780582/implantable-cardiac-defibrillator-and-mortality-in-non-ischaemic-cardiomyopathy-an-updated-meta-analysis
#6
Ana C Alba, Farid Foroutan, Juan Duero Posada, Luciano Battioni, Toni Schofield, Mosaad Alhussein, Thomas Agoritsas, Frederick A Spencer, Gordon Guyatt
OBJECTIVES: The benefit of implantable cardiac defibrillator (ICD) in symptomatic patients with systolic dysfunction and non-ischaemic cardiomyopathy remains controversial. We conducted a systematic review and meta-analysis to determine the effect of ICD in patients with non-ischaemic cardiomyopathy on (1) all-cause mortality, (2) cardiovascular mortality and (3) sudden cardiac death. METHODS: We searched citations in meta-analyses published until 2012, and in MEDLINE, Embase, PubMed and Cochrane databases from 2012 to October 2016...
August 5, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28780194/scar-characterization-to-predict-life-threatening-arrhythmic-events-and%C3%A2-sudden-cardiac-death-in-patients-with-cardiac-resynchronization-therapy-the-gaudi-crt-study
#7
Juan Acosta, Juan Fernández-Armenta, Roger Borràs, Ignasi Anguera, Felipe Bisbal, Julio Martí-Almor, Jose M Tolosana, Diego Penela, David Andreu, David Soto-Iglesias, Reinder Evertz, María Matiello, Concepción Alonso, Roger Villuendas, Teresa M de Caralt, Rosario J Perea, Jose T Ortiz, Xavier Bosch, Luis Serra, Xavier Planes, Andreas Greiser, Okan Ekinci, Luis Lasalvia, Lluis Mont, Antonio Berruezo
OBJECTIVES: The aim of this study was to analyze whether scar characterization could improve the risk stratification for life-threatening ventricular arrhythmias and sudden cardiac death (SCD). BACKGROUND: Among patients with a cardiac resynchronization therapy (CRT) indication, appropriate defibrillator (CRT-D) therapy rates are low. METHODS: Primary prevention patients with a class I indication for CRT were prospectively enrolled and assigned to CRT-D or CRT pacemaker according to physician's criteria...
July 28, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28765767/simple-and-effective-solution-for-diaphragm-pacing-by-that-uses-the-transvenous-femoral-approach-in-a-patient-treated-with-cardiac-resynchronization-defibrillator-therapy-the-wrapping-method
#8
Ahmet Taha Alper, Mert İlker Hayıroğlu, Ahmet İlker Tekkeşin, Ceyhan Türkkan
The use of cardiac resynchronization therapy (CRT) has become widespread in patients with heart failure who meet the criteria for implantation. Coronary sinus lead positioning is important to provide the intended biventricular stimulation. Diaphragm pacing is a lead-related complication which occurs secondary to phrenic nerve stimulation. We present the case of a 58-year-old male patient who had diaphragm pacing after CRT with defibrillator implantation. The complication was resolved by using the transvenous femoral approach with the wrapping method...
August 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28761607/-severe-ventricular-arrhythmias-in-a-patient-with-dilated-cardiomyopathy-and-automated-implantable-defibrillator-aid
#9
Stéphane Méo Ikama, Jospin Makani, Bertrand Ellenga-Mbolla, Louis Igor Ondze-Kafata, Thierry Raoul Gombet, Gisèle Kimbally-Kaky
Severe ventricular arrhythmias are frequent during heart failure; they are a life-threatening condition due to the increased risk of sudden death. Efficient management remains limited in sub-Saharan Africa because of the limited or unavailable medical resources as automated implantable defibrillator (AID). We report the case of a 56-year old patient with non ischemic dilated cardiomyopathy with very low left ventricular ejection fraction (LVEF)who underwent AID implantation for primary prevention of sudden cardiac death due to ventricular arrhythmias in 2012...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28761406/position-of-subcutaneous-implantable-cardioverter-defibrillators-and-possible-interference-on-myocardial-perfusion-imaging
#10
Omar Ray Kahaly, Fereidoon Shafiei, Charles Hardebeck, Mahmoud Houmsse
Implanted cardioverter-defibrillators can prevent sudden cardiac death in at-risk patients. In comparison with conventional transvenous systems, entirely subcutaneous implantable cardioverter-defibrillators have produced similar reductions in the rate of sudden cardiac death but with fewer sequelae. An infrequently reported drawback of subcutaneous devices, however, is the potential for generating attenuation artifact during nuclear myocardial perfusion imaging. We had concerns about potential attenuation artifact in a 65-year-old man with coronary artery disease but found that having positioned the pulse generator in the midaxillary zone avoided problems...
June 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28761405/eosinophilia-and-ulcerative-colitis-associated-with-eosinophilic-myocarditis
#11
Katie Murphy, Oral Waldo, Graham M Lohrmann, Henry D Tazelaar, Clinton E Jokerst, Farouk Mookadam
Reactive eosinophilia is associated with inflammatory bowel disease, but its association with eosinophilic myocarditis is rare. We report a case of a 42-year-old man who presented with hypovolemic shock secondary to diarrhea and recently diagnosed nonischemic cardiomyopathy (left ventricular ejection fraction, 0.29). Laboratory evaluation revealed marked peripheral eosinophilia. Cardiac magnetic resonance imaging showed evidence of subacute-to-chronic myocarditis, and endomyocardial biopsy results were consistent with eosinophilic myocarditis...
June 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28760213/retained-cardiac-implantable-electronic-device-fragments-are-not-associated-with-magnetic-resonance-imaging-safety-issues-morbidity-or-mortality-after-orthotopic-heart-transplant
#12
Christopher O Austin, Kevin Landolfo, Pragnesh P Parikh, Parag C Patel, K L Venkatachalam, Fred M Kusumoto
BACKGROUND: Cardiac implantable electronic device therapy (CIED) has revolutionized treatment for advanced heart failure. Most patients considered for orthotopic heart transplantation (OHT) are treated with implantable cardioverter defibrillators, cardiac resynchronization therapy, or both. These CIEDs are surgically extracted at the time of transplant. Occasionally, CIEDs are incompletely removed. Little is known about the outcomes of post-OHT patients with retained CIED fragments. METHODS: We identified 200 consecutive patients that underwent OHT at our institution between April 2006 and December 2014 and performed a retrospective analysis of available radiographic images and clinical records...
August 2017: American Heart Journal
https://www.readbyqxmd.com/read/28760205/probing-oral-anticoagulation-in-patients-with-atrial-high-rate-episodes-rationale-and-design-of-the-non-vitamin-k-antagonist-oral-anticoagulants-in-patients-with-atrial-high-rate-episodes-noah-afnet-6-trial
#13
Paulus Kirchhof, Benjamin F Blank, Melanie Calvert, A John Camm, Gregory Chlouverakis, Hans-Christoph Diener, Andreas Goette, Andrea Huening, Gregory Y H Lip, Emmanuel Simantirakis, Panos Vardas
Oral anticoagulation prevents ischemic strokes in patients with atrial fibrillation (AF). Early detection of AF and subsequent initiation of oral anticoagulation help to prevent strokes in AF patients. Implanted cardiac pacemakers and defibrillators allow seamless detection of atrial high rate episodes (AHRE), but the best antithrombotic therapy in patients with AHRE is not known. RATIONALE: Stroke risk is higher in pacemaker patients with AHRE than in those without, but the available data also show that stroke risk in patients with AHRE is lower than in patients with AF...
August 2017: American Heart Journal
https://www.readbyqxmd.com/read/28754394/a-potentially-lethal-dysfunction-of-a-subcutaneous-implantable-cardiac-defibrillator-the-phantom-menace
#14
Mihaela Calcaianu, Didier Bresson, Jacques Lévy
In this article we describe, to our knowledge, the first case of a potentially lethal dysfunction of a subcutaneous implantable cardioverter-defibrillator (S-ICD). A 70-year-old patient underwent primary S-ICD implantation. Nine months after, communication could not be established with the device. Chest radiography revealed that the lead had moved and wrapped around the generator. After equipment extraction, we observed the lead wound around the sagittal axis of the generator. A burn mark with melted metal was found inside the generator...
August 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28752228/the-dx-af-study-a-prospective-multicenter-randomized-controlled-trial-comparing-vdd-icd-to-vvi-icd-in-detecting-sub-clinical-atrial-fibrillation-in-defibrillator-patients
#15
Mohammed Shurrab, Amir Janmohamed, Jean-François Sarrazin, Felix Ayala-Paredes, Marcio Sturmer, Randall Williams, Satish Toal, Chris Lane, Kevin E Thorpe, Jeff S Healey, Eugene Crystal
PURPOSE: Atrial fibrillation (AF) is the most common cardiac dysrhythmia. Appropriate detection of AF and early initiation of oral anticoagulation therapy are critical to reduce the risk of stroke. Patients with implantable cardioverter defibrillators (ICD) are at high risk of developing AF. The purpose of the Dx-AF study is to demonstrate that a novel single-lead VDD-ICD system (Linox smart S DX) will facilitate adequate recognition of sub-clinical AF and ultimately stroke prevention with a comparable safety profile in comparison to VVI-ICD...
July 27, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28747313/long-term-complications-reoperations-and-survival-following-cardioverter-defibrillator-implant
#16
Nathaniel Mark Hawkins, Maja Grubisic, Jason G Andrade, Flora Huang, Lillian Ding, Min Gao, Jamil Bashir
OBJECTIVE: Implantable cardioverter-defibrillators (ICDs) reduce risk of death in select populations, but are also associated with harms. We aimed to characterise long-term complications and reoperation rate. METHODS: We assessed the rate, cumulative incidence and predictors of long-term reoperation and survival using a prospective, multicentre registry serving British Columbia in Canada, a universal single payer healthcare system with 4.5 million residents. 3410 patients (mean 63...
July 26, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28747026/inferior-and-anterior-qrs-fragmentation-have-different-prognostic-value-in-patients-who-received-an-implantable-defibrillator-in-primary-prevention-of-sudden-cardiac-death
#17
B Vandenberk, T Robyns, G Goovaerts, S Van Soest, V Floré, C Garweg, S Van Huffel, J Ector, R Willems
AIMS: QRS fragmentation (fQRS) has been proposed as a predictor of sudden cardiac death (SCD) and all-cause mortality in ischemic (ICM) and non-ischemic cardiomyopathy patients. However the value of fQRS in patients with a LVEF <35% is a matter of debate. METHODS: All consecutive patients with an indication for an ICD in primary prevention of SCD were included in a retrospective registry from 1996 until 2013. Twelve lead electrocardiograms before implant were analyzed for the presence of fQRS in different regions...
September 15, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28745206/sudden-unexplained-cardiac-deaths-in-young-adults-a-call-for-multidisciplinary-approach
#18
Bartosz Hudzik, Michal Hudzik, Andrzej Lekston, Mariusz Gasior
The investigation of death in young (<35 years), previously fit individuals, calls for a detailed autopsy with emphasis placed upon the examination of the heart. In most instances, the cause of cardiac death can be identified during autopsy. However, a large percentage of sudden deaths remain unexplained even after comprehensive medicolegal investigation, including autopsy, and are labelled as autopsy-negative sudden unexplained cardiac death (SUD). Still, when you look to the law, an autopsy, a much needed truth-finding-instrument, usually is not mandatory and is left up to the discretion of various medical or legal authorities, which when making a decision, balance various, often conflicting interests of the state and society on the one hand and of the deceased and his family on the other...
July 26, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28744959/predicting-appropriate-shocks-in-patients-with-heart-failure-patient-level-meta-analysis-from-scd-heft-and-madit-ii
#19
Emily P Zeitler, Sana M Al-Khatib, Daniel J Friedman, Joo Yoon Han, Jeanne E Poole, Gust H Bardy, J Thomas Bigger, Alfred E Buxton, Arthur J Moss, Kerry L Lee, Paul Dorian, Riccardo Cappato, Alan H Kadish, Peter J Kudenchuk, Daniel B Mark, Lurdes Y T Inoue, Gillian D Sanders
BACKGROUND: No precise tools exist to predict appropriate shocks in patients with a primary prevention ICD. We sought to identify characteristics predictive of appropriate shocks in patients with a primary prevention implantable cardioverter defibrillator (ICD). METHODS: Using patient-level data from the Multicenter Automatic Defibrillator Implantation Trial II (MADIT II) and the Sudden Cardiac Death in Heart Failure Trial (SCD-HeFT), we identified patients with any appropriate shock...
July 26, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28742649/thoracoscopic-implantation-of-an-array-electrode-in-the-pericardium-transverse-sinus-to-reduce-defibrillation-threshold
#20
Antonio Curnis, Claudio Muneretto, Gianluigi Bisleri, Manuel Cerini, Lorenza Inama, Francesca Salghetti, Raffaella De Vito, Laura Giroletti, Fabrizio Rosati, Daniele Giacopelli, Francesca Vassanelli, Luca Bontempi
Among the implantable cardioverter defibrillator recipients, there is still a subgroup of patients in whom the defibrillation threshold is too high and the maximal shock output of the implantable cardioverter defibrillator can fail to terminate a ventricular arrhythmia. We report a new thoracoscopic minimally invasive approach to place a standard array electrode in the transverse pericardial sinus of a patient implanted with a cardiac resynchronization and defibrillation therapy device with persistent high defibrillation threshold...
July 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
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