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Implantable Cardiac Devices

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https://www.readbyqxmd.com/read/28087994/commentary-on-mauf-s-jentzsch-t-laberke-pj-thali-mj-bartsch-c-why-we-need-postmortem-analysis-of-cardiac-implantable-electronic-devices-j-forensic-sci-2016-61-4-988-92
#1
Ellen Moffatt, Zian H Tseng
No abstract text is available yet for this article.
January 2017: Journal of Forensic Sciences
https://www.readbyqxmd.com/read/28079553/end-of-life-decisions-in-heart-failure-to-turn-off-the-intracardiac-device-or-not
#2
Bilal Ayach, Amrit Malik, Colette Seifer, Shelley Zieroth
PURPOSE OF REVIEW: Heart failure is a significant public health concern around the world. Implantable cardioverter defibrillators with or without cardiac resynchronization therapy (CRT-D) have proven survival benefit. As patients progress to end-stage disease, management shifts to palliative care, and cardiologists are often confronted with how to best manage these devices. RECENT FINDINGS: Studies suggest that up to one-third of patients with an implantable cardioverter defibrillator receive painful shocks in the last 24 h of life...
January 11, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28075624/use-of-preprocedural-mdct-for-cardiac-implantable-electric-device-lead-extraction-frequency-of-findings-that-change-management
#3
Wendy L Ehieli, Daniel T Boll, Daniele Marin, Robert Lewis, Jonathan P Piccini, Lynne M Hurwitz
OBJECTIVE: Five percent of cardiac implantable electric devices (CIEDs) are removed each year. Percutaneous extraction is preferred but can be complicated if the leads adhere to the vasculature or perforate. The goal of this study is to assess the frequency of findings on dedicated MDCT that alter preprocedural planning for percutaneous CIED extraction. MATERIALS AND METHODS: One hundred patients with CIEDs who underwent MDCT before percutaneous lead extraction were analyzed...
January 11, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28075307/chronic-heart-failure-part-2-treatment-and-management
#4
Rebecca Brake, Ian David Jones
Chronic heart failure is a common and complex clinical syndrome that results from impaired cardiac relaxation or contraction. There have been considerable advances in the management of chronic heart failure; however, the mortality rate remains high. Patients with chronic heart failure may experience multiple debilitating symptoms, such as fatigue, pain, and peripheral oedema. However, breathlessness may be considered the most debilitating symptom. The management of chronic heart failure aims to improve the patient's quality of life by reducing symptoms and supporting the patient to manage their condition...
January 11, 2017: Nursing Standard
https://www.readbyqxmd.com/read/28073883/infective-endocarditis-and-risk-of-death-after-cardiac-implantable-electronic-device-implantation-a-nationwide-cohort-study
#5
Cengiz Özcan, Jakob Raunsø, Morten Lamberts, Lars Køber, Tommi Bo Lindhardt, Niels Eske Bruun, Marie Louise Laursen, Christian Torp-Pedersen, Gunnar Hilmar Gislason, Morten Lock Hansen
AIMS: To determine the incidence, risk factors, and mortality of infective endocarditis (IE) following implantation of a first-time, permanent, cardiac implantable electronic device (CIED). METHODS AND RESULTS: From Danish nationwide administrative registers (beginning in 1996), we identified all de-novo permanent pacemakers (PMs) and implantable cardioverter defibrillators (ICDs) together with the occurrence of post-implantation IE-events in the period from 2000-2012...
January 10, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28073805/sheet-like-remodeling-of-the-transverse-tubular-system-in-human-heart-failure-impairs-excitation-contraction-coupling-and-functional-recovery-by-mechanical-unloading
#6
Thomas Seidel, Sutip Navankasattusas, Azmi A Ahmad, Nikolaos A Diakos, Weining D Xu, Martin Tristani-Firouzi, Michael Bonios, Iosif Taleb, Dean Y Li, Craig H Selzman, Stavros G Drakos, Frank B Sachse
BACKGROUND: -Cardiac recovery in response to mechanical unloading by left ventricular assist devices (LVADs) has been demonstrated in subgroups of chronic heart failure (HF) patients. Hallmarks of HF are depletion and disorganization of the transverse tubular system (t-system) in cardiomyocytes. Here, we investigated remodeling of the t-system in human end-stage HF and its role in cardiac recovery. METHODS: -Left ventricular biopsies were obtained from 5 donors (CTRL) and 26 chronic HF patients undergoing implantation of LVADs...
January 10, 2017: Circulation
https://www.readbyqxmd.com/read/28073660/effectiveness-of-subcutaneous-implantable-cardioverter-defibrillator-testing-in-patients-with-hypertrophic-cardiomyopathy
#7
Niccoló Maurizi, Ilaria Tanini, Iacopo Olivotto, Ernesto Amendola, Giuseppe Limongelli, Maria Angela Losi, Giuseppe Allocca, Giovanni Battista Perego, Paolo Pieragnoli, Giuseppe Ricciardi, Paolo De Filippo, Paola Ferrari, Giovanni Quarta, Stefano Viani, Antonio Rapacciuolo, Maria Grazia Bongiorni, Franco Cecchi
BACKGROUND: Subcutaneous ICD (S-ICD) is a promising option for Hypertrophic Cardiomyopathy (HCM) patients at risk of Sudden Cardiac Death (SCD). However, its effectiveness in terminating ventricular arrhythmias in HCM is yet unresolved. METHODS: Consecutive HCM patients referred for S-ICD implantation were prospectively enrolled. Patients underwent one or two attempts of VF induction by the programmer. Successful conversion was defined as any 65J shock that terminated VF (not requiring rescue shocks)...
January 4, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28070743/cardiac-ct-angiography-ccta-predicts-left-atrial-appendage-occluder-device-size-and-procedure-outcome
#8
Orly Goitein, Noam Fink, Ilan Hay, Elio Di Segni, Victor Guetta, David Goitein, Yafim Brodov, Eli Konen, Michael Glikson
AIM: To investigate the role of cardiac CT angiography (CCTA) in predicting optimal left atrial appendage (LAA) occluder size and procedure outcome. METHODS AND RESULTS: Thirty-six patients underwent pre-procedural CCTA. CCTA and TEE LAA orifice diameters and perimeters were compared with the implanted device size. CCTA 3D configuration was correlated with procedure outcome. Watchman™ device (N = 18): diameters were 21 ± 4, 26 ± 5 and 25 ± 3 mm for TEE, CCTA and inserted device, respectively...
January 9, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28067196/management-of-st-elevation-myocardial-infarction-in-young-patients-by-limiting-implantation-of-durable-intracoronary-devices-and-guided-by-optical-frequency-domain-imaging-proof-of-concept-study
#9
Nicolas Combaret, Géraud Souteyrand, Nicolas Barber-Chamoux, Guilhem Malcles, Aimé Amonchot, Bruno Pereira, Louis Le Bivic, Romain Eschalier, Romain Trésorier, Pascal Motreff
AIMS: To demonstrate the feasibility and safety of ST-elevation myocardial infarction (STEMI) management in young patients by limiting implantation of durable intracoronary devices (using bioresorbable stent or medical treatment alone). METHODS AND RESULTS: Patients <50 years admitted for STEMI with single vessel disease received a two-stage management strategy. During a second coronary angiography performed between day 2 and day 7, optical frequency domain imaging (OFDI) enabled to guide therapeutic management: i) in the case of a stenosis greater that 70% or plaque prolapse, implantation of a BVS; ii) in the other cases, continuation of medical management alone without stenting...
January 10, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28065904/increasing-sex-differences-in-the-use-of-cardiac-resynchronization-therapy-with-or-without-implantable-cardioverter-defibrillator
#10
Neal A Chatterjee, Rasmus Borgquist, Yuchiao Chang, Jennifer Lewey, Vicki A Jackson, Jagmeet P Singh, Joshua P Metlay, Charlotta Lindvall
AIMS: Previous studies have identified sex disparities in the use of cardiac resynchronization therapy (CRT) and implantable cardioverter defibrillators (ICD), although the basis of underutilization in women remains poorly understood. The aim of this study was to assess sex differences in patterns of CRT use with our without ICD. METHODS AND RESULTS: In this cross-sectional study using the National Inpatient Sample database we identified 311 009 patients undergoing CRT implantation in the United States between 2006 and 2012...
January 8, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28050727/energy-harvesting-by-subcutaneous-solar-cells-a-long-term-study-on-achievable-energy-output
#11
L Bereuter, S Williner, F Pianezzi, B Bissig, S Buecheler, J Burger, R Vogel, A Zurbuchen, A Haeberlin
Active electronic implants are powered by primary batteries, which induces the necessity of implant replacement after battery depletion. This causes repeated interventions in a patients' life, which bears the risk of complications and is costly. By using energy harvesting devices to power the implant, device replacements may be avoided and the device size may be reduced dramatically. Recently, several groups presented prototypes of implants powered by subcutaneous solar cells. However, data about the expected real-life power output of subcutaneously implanted solar cells was lacking so far...
January 3, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28048561/su-f-t-452-influence-of-dose-calculation-algorithm-and-heterogeneity-correction-on-risk-categorization-of-patients-with-cardiac-implanted-electronic-devices-undergoing-radiotherapy
#12
P Iwai, L Nadler Lins
PURPOSE: There is a lack of studies with significant cohort data about patients using pacemaker (PM), implanted cardioverter defibrillator (ICD) or cardiac resynchronization therapy (CRT) device undergoing radiotherapy. There is no literature comparing the cumulative doses delivered to those cardiac implanted electronic devices (CIED) calculated by different algorithms neither studies comparing doses with heterogeneity correction or not. The aim of this study was to evaluate the influence of the algorithms Pencil Beam Convolution (PBC), Analytical Anisotropic Algorithm (AAA) and Acuros XB (AXB) as well as heterogeneity correction on risk categorization of patients...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047140/su-f-t-325-on-the-use-of-bolus-in-dosimetry-and-dose-reduction-for-pacemaker-and-defibrillator
#13
W Liu, D Zhu, S Trumpore, R Kenneth, S Higgins, R Nath, Z Chen
PURPOSE: Special attention is required in planning and administering radiation therapy to patients with cardiac implantable electronic devices (CIEDs), such as pacemaker and defibrillator. The range of dose to CIEDs that can induce malfunction is very large among CIEDs. Significant defects have been reported at dose as low as 0.15Gy. Failures causing discomfort have been reported at dose as low as 0.05Gy. Therefore, accurate estimation of dose to CIED and dose reduction are both important even if the dose is expected to be less than the often-used 2Gy limit...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28045412/transcatheter-aortic-valve-implantation-with-the-edwards-sapien-3-valve-first-experiences-in-turkey
#14
Abdullah Nabi Aslan, Serdal Baştuğ, Hacı Ahmet Kasapkara, Hüseyin Ayhan, Hakan Süygün, Telat Keleş, Tahir Durmaz, Nihal Akar Bayram, Emine Bilen, Engin Bozkurt
OBJECTIVE: Transcatheter aortic valve implantation (TAVI) has shown promising results in patients with severe aortic stenosis (AS) at high risk for open heart surgery. We aimed to evaluate outcomes of patients who underwent TAVI with Edwards SAPIEN 3 Transcatheter Heart Valve (S3), a second-generation TAVI device. METHODS: Between November 2014 and June 2016, 31 high-risk patients received balloon-expandable S3 valve at Atatürk Training and Research Hospital that has the largest case series in Turkey...
December 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28043973/the-year-in-cardiology-2016-arrhythmias-and-cardiac-implantable-electronic-devices
#15
Riccardo Cappato, Gerhard Hindricks, Jan Steffel
No abstract text is available yet for this article.
January 2, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28043679/presence-of-implantable-cardioverter-defibrillators-and-wait-list-mortality-of-patients-supported-with-left-ventricular-assist-devices-as-bridge-to-heart-transplantation
#16
Ahmad Younes, Sadeer G Al-Kindi, Wissam Alajaji, Judith A Mackall, Guilherme H Oliveira
BACKGROUND: The role of implantable cardioverter defibrillator (ICD) in reducing mortality in patients with left ventricular assisted devices (LVADs) listed for heart transplant remains unclear. We therefore, sought to interrogate whether ICDs are associated with reduced mortality in patients with LVADs listed for heart transplantation. METHODS: We searched the United Network for Organ Sharing (UNOS) Registry for LVAD patients (age≥18years) with dilated cardiomyopathies listed for heart transplantation (2008-2015)...
December 28, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28040318/transcatheter-mitral-valve-replacement-for-patients-with-symptomatic%C3%A2-mitral%C3%A2-regurgitation-a-global-feasibility-trial
#17
David W M Muller, Robert Saeid Farivar, Paul Jansz, Richard Bae, Darren Walters, Andrew Clarke, Paul A Grayburn, Robert C Stoler, Gry Dahle, Kjell A Rein, Marty Shaw, Gregory M Scalia, Mayra Guerrero, Paul Pearson, Samir Kapadia, Marc Gillinov, Augusto Pichard, Paul Corso, Jeffrey Popma, Michael Chuang, Philipp Blanke, Jonathon Leipsic, Paul Sorajja
BACKGROUND: Symptomatic mitral regurgitation (MR) is associated with high morbidity and mortality that can be ameliorated by surgical valve repair or replacement. Despite this, many patients with MR do not undergo surgery. Transcatheter mitral valve replacement (TMVR) may be an option for selected patients with severe MR. OBJECTIVES: This study aimed to examine the effectiveness and safety of TMVR in a cohort of patients with native valve MR who were at high risk for cardiac surgery...
December 20, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28038817/low-partial-pressure-of-end-tidal-carbon-dioxide-predicts-left-ventricular-assist-device-implantation-in-patients-with-advanced-chronic-heart-failure
#18
Osamu Seguchi, Eriko Hisamatsu, Atsushi Nakano, Seiko Nakajima, Kensuke Kuroda, Takuya Watanabe, Takuma Sato, Haruki Sunami, Masanobu Yanase, Hiroki Hata, Toshimitsu Hamasaki, Tomoyuki Fujita, Junjiro Kobayashi, Takeshi Nakatani, Masafumi Kitakaze, Norihide Fukushima
BACKGROUND: This study aimed to clarify the prognostic impact of partial pressure of end-tidal carbon dioxide (PETCO2) in patients with advanced chronic heart failure (HF). METHODS: Forty-eight patients (mean age 43.1±11.9years, 32 males) with chronic HF (44 with non-ischemic and 4 with ischemic cardiomyopathy) were prospectively enrolled. Echocardiography, blood tests, pulmonary function testing, and PETCO2 measurements were performed as noninvasive tests, whereas right heart catheterization and arterial blood gas analysis were conducted as invasive tests...
December 21, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/28034387/clinical-issues-january-2017
#19
Byron L Burlingame
Jewelry removal when using electrosurgical devices Key words: electrosurgery, monopolar electrosurgery, jewelry, body piercing. Use of electrosurgery when a cardiac implanted device is present Key words: electrosurgery, monopolar electrosurgery, bipolar electrosurgery, implanted electronic device, cardiac implanted electronic device. Staffing when a laser is used Key words: laser, laser operator, laser nurse, laser assistant, laser user.
January 2017: AORN Journal
https://www.readbyqxmd.com/read/28033201/right-ventricular-failure-post-lvad-implantation-corrected-with-biventricular-support-an-in-vitro-model
#20
Sajad Shehab, Sabine M Allida, Patricia M Davidson, Phillip J Newton, Desiree Robson, Paul C Jansz, Christopher S Hayward
Right ventricular failure after left ventricular assist device (LVAD) implantation is associated with high mortality. Management remains limited to pharmacologic therapy and temporary mechanical support. Delayed right ventricular assist device (RVAD) support after LVAD implantation is associated with poorer outcomes. With the advent of miniaturized, durable, continuous flow ventricular assist device systems, chronic RVAD and biventricular assist device (BiVAD) support has been used with some success. The purpose of this study was to assess combined BiVAD and LVAD with delayed RVAD support within a four-elemental mock circulatory loop (MCL) simulating the human cardiovascular system...
January 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
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