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https://www.readbyqxmd.com/read/28240694/improving-clinical-outcomes-for-patients-with-class-iii-heart-failure
#1
Melissa Shapiro, Angela Macci Bires, Kristen Waterstram-Rich, Thomas W Cline
Heart failure (HF) is a serious medical problem in the United States and is placing a financial strain on the health care system. It is the leading cause of mortality and as the overall incidence continues to increase, so does the economic impact on the health care system. Innovative treatment options, in the form of disease management programs and implantable cardiac devices, such as the CorVue capable implantable cardioverter defibrillator (ICD) pacemaker, offer the promise of an enhanced quality of life and reduced mortality...
April 2017: Critical Care Nursing Quarterly
https://www.readbyqxmd.com/read/28239075/time-dependent-changes-in-psychosocial-distress-in-japanese-patients-with-implantable-cardioverter-defibrillators
#2
Nao Saito, Chiemi Taru, Ikuko Miyawaki
This prospective study clarified changes in the mood states of Japanese patients with implantable cardioverter defibrillators as well as factors related to the mood states. Using a longitudinal repeated-measure design, 29 patients with implantable cardioverter defibrillators completed the Profile of Mood States-Short Form Japanese Version questionnaire before discharge and 1, 4, 7, and 13 months after implantation. One month after discharge, the mood states of the patients with implantable cardioverter defibrillators improved...
December 2, 2016: Kobe Journal of Medical Sciences
https://www.readbyqxmd.com/read/28237968/nationwide-experience-of-catecholaminergic-polymorphic-ventricular-tachycardia-caused-by-ryr2-mutations
#3
Anders Krogh Broendberg, Jens Cosedis Nielsen, Jesper Bjerre, Lisbeth Noerum Pedersen, Jens Kristensen, Finn Lund Henriksen, Henning Bundgaard, Henrik Kjaerulf Jensen
OBJECTIVE: The aim of this study was to characterise disease penetrance, course of disease and use of antiarrhythmic medication and implantable cardioverter-defibrillator (ICD) therapy in a Danish nationwide cohort of patients with catecholaminergic polymorphic ventricular tachycardia (CPVT) due to mutations in the ryanodine receptor-2 (RyR2) gene. METHODS: The study population was identified through the national hereditary heart disease database (Progeny). The study population was divided into three groups: probands, symptomatic and asymptomatic relatives...
February 25, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28237370/perioperative-management-of-patients-with-cardiac-implantable-electronic-devices
#4
R Poveda-Jaramillo, H D Castro-Arias, C Vallejo-Zarate, L F Ramos-Hurtado
The use of implantable cardiac devices in people of all ages is increasing, especially in the elderly population: patients with pacemakers, cardioverter-defibrillators or cardiac resynchronization therapy devices regularly present for surgery for non-cardiac causes. This review was made in order to collect and analyze the latest evidence for the proper management of implantable cardiac devices in the perioperative period. Through a detailed exploration of PubMed, Academic Search Complete (EBSCO), ClinicalKey, Cochrane (Ovid), the search software UpToDate, textbooks and patents freely available to the public on Google, we selected 33 monographs, which matched the objectives of this publication...
February 22, 2017: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/28229483/venous-hemodialysis-catheters-and-cardiac-implantable-electronic-devices-avoiding-a-high-risk-combination
#5
EDITORIAL
Theodore F Saad, Henry L Weiner
End-stage renal disease is frequently accompanied by cardiac comorbidity that warrants treatment with a cardiovascular implantable electronic device (permanent pacemaker or implantable cardioverter-defibrillator). In the United States, chronic hemodialysis (HD) population, cardiac implantable devices are present in up to 10.5% of patients; a venous HD catheter is utilized for blood access in 18% of prevalent patients. The concomitant presence of a venous HD catheter and cardiovascular implantable device creates a high-risk circumstance, with potential for causing symptomatic central venous stenosis, and for developing complicated endovascular infection...
February 23, 2017: Seminars in Dialysis
https://www.readbyqxmd.com/read/28229272/prophylactic-implantable-cardioverter-defibrillator-in-heart-failure-the-growing-evidence-for-all-or-primum-non-nocere-for-some
#6
REVIEW
Khang-Li Looi, Nigel Lever, Anthony Tang, Sharad Agarwal
Heart failure (HF) is a common health problem and has reached epidemic in many western countries. Despite the current era of HF treatment, the risk of sudden cardiac death (SCD) in HF remains significant. Implantable cardioverter defibrillator (ICD) support has been shown to reduce the risk of SCD in patients with HF and impaired left ventricular function. Prophylactic ICD implantation in HF patients seems a logical step to reduce mortality through a reduction in SCD. However, ICD implantation is an invasive procedure, and both short- and long-term complications can occur...
February 23, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28229201/-sudden-cardiac-death-epidemiology-pathophysiology-and-risk-stratification
#7
B Rudic, E Tülümen, V Liebe, J Kuschyk, I Akin, M Borggrefe
Sudden cardiac death (SCD) remains a major public health burden despite revolutionary progress in the last three decades in the treatment of ventricular tachyarrhythmia with the use of implantable cardioverter defibrillator (ICD) therapy. Survivors of sudden cardiac arrest are at high risk for recurrent tachyarrhythmia events. Early recognition of low left ventricular ejection fractions (≤35%) as a strong predictor of mortality and the causal association between ventricular tachyarrhythmia and SCD has led to a significant development of not only pharmacological antiarrhythmic therapy but also device-based prevention of SCD...
February 22, 2017: Herz
https://www.readbyqxmd.com/read/28229198/-catheter-ablation-of-ventricular-tachycardia-what-have-we-achieved
#8
T Konrad, B A Hoffmann, T Rostock
The role of catheter ablation in patients with ventricular tachycardia (VT) has evolved over the last two decades into an established treatment option. In patients with idiopathic VT catheter ablation is the gold standard treatment option with high effectiveness and low risk of complications. Due to the high risk of side effects the use of antiarrhythmic drugs is only indicated in exceptional cases. In patients with structural heart diseases, such as ischemic and dilated cardiomyopathy, VT is the most frequent cause of death...
February 22, 2017: Herz
https://www.readbyqxmd.com/read/28227089/low-energy-defibrillation-research-using-a-rabbit-ventricular-model-optimizing-the-potential-gradient-distribution-using-multiple-epicardial-electrodes
#9
Jianfei Wang, Lian Jin, Xiaomei Wu, Biao Song, Li Qian, Weiqi Wang, Jianfei Wang, Lian Jin, Xiaomei Wu, Biao Song, Li Qian, Weiqi Wang, Xiaomei Wu, Li Qian, Biao Song, Jianfei Wang, Weiqi Wang, Lian Jin
Cardiac potential gradient distribution directly affects defibrillation efficacy, and the electrode configuration that ensures optimal distribution is yet to be determined. In this study, a rabbit ventricular finite element conductor model containing blood perfusion in ventricular cavities was developed. The electric field was solved on the model by using 95% myocardial volume potential gradient higher than 5 V/cm as the successful defibrillation threshold (DFT). Multiple epicardial electrodes (MEE) protocols and a SCAN protocol were used to identify the optimum defibrillation method...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226465/in-silico-pre-clinical-trials-for-implantable-cardioverter-defibrillators
#10
Zhihao Jiang, Houssam Abbas, Kuk Jin Jang, Marco Beccani, Jackson Liang, Sanjay Dixit, Rahul Mangharam, Zhihao Jiang, Houssam Abbas, Kuk Jin Jang, Marco Beccani, Jackson Liang, Sanjay Dixit, Rahul Mangharam, Jackson Liang, Marco Beccani, Sanjay Dixit, Rahul Mangharam, Houssam Abbas, Zhihao Jiang, Kuk Jin Jang
Regulatory authorities require that the safety and efficacy of a new high-risk medical device be proven in a Clinical Trial (CT), in which the effects of the device on a group of patients are compared to the effects of the current standard of care. Phase III trials can run for several years, cost millions of dollars, and expose patients to an unproven device. In this paper, we demonstrate how to use a large group of synthetic patients based on computer modeling to improve the planning of a CT so as to increase the chances of a successful trial for implantable cardioverter defibrillators (ICDs)...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28225684/assessing-the-risks-associated-with-mri-in-patients-with-a-pacemaker-or-defibrillator
#11
Robert J Russo, Heather S Costa, Patricia D Silva, Jeffrey L Anderson, Aysha Arshad, Robert W W Biederman, Noel G Boyle, Jennifer V Frabizzio, Ulrika Birgersdotter-Green, Steven L Higgins, Rachel Lampert, Christian E Machado, Edward T Martin, Andrew L Rivard, Jason C Rubenstein, Raymond H M Schaerf, Jennifer D Schwartz, Dipan J Shah, Gery F Tomassoni, Gail T Tominaga, Allison E Tonkin, Seth Uretsky, Steven D Wolff
Background The presence of a cardiovascular implantable electronic device has long been a contraindication for the performance of magnetic resonance imaging (MRI). We established a prospective registry to determine the risks associated with MRI at a magnetic field strength of 1.5 tesla for patients who had a pacemaker or implantable cardioverter-defibrillator (ICD) that was "non-MRI-conditional" (i.e., not approved by the Food and Drug Administration for MRI scanning). Methods Patients in the registry were referred for clinically indicated nonthoracic MRI at a field strength of 1...
23, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28225475/stretching-exercises-improve-vascular-endothelial-dysfunction-through-attenuation-of-oxidative-stress-in-chronic-heart-failure-patients-with-an-implantable-cardioverter-defibrillator
#12
Michitaka Kato, Takashi Masuda, Michio Ogano, Kazuki Hotta, Hisato Takagi, Shinya Tanaka, Yumi Kamada, Ayako Akiyama, Daisuke Kamekawa, Ryosuke Shimizu, Minoru Tabata, Jun Tanabe, Takuya Umemoto
PURPOSE: Endurance training improves oxidative stress and vascular endothelial dysfunction in patients with chronic heart failure (CHF). However, patients with CHF and an implantable cardioverter defibrillator (ICD) or cardiac resynchronization therapy-defibrillator (CRT-D) often avoid endurance training for fear of ICD shock. Recent studies have reported that stretching exercises enhance antioxidant activity and improve vascular responses. Therefore, we aimed to assess the effects of 4 weeks of stretching exercises on oxidative stress and vascular endothelial function in patients with CHF with an ICD or CRT-D...
March 2017: Journal of Cardiopulmonary Rehabilitation and Prevention
https://www.readbyqxmd.com/read/28222965/ventricular-arrhythmias-and-sudden-death-in-tetralogy-of-fallot
#13
REVIEW
Philippe Maury, Frederic Sacher, Anne Rollin, Pierre Mondoly, Alexandre Duparc, Katja Zeppenfeld, Sebastien Hascoet
Malignant ventricular arrhythmias and sudden cardiac death may late happen in repaired tetralogy of Fallot, although probably less frequently than previously thought, especially with the advent of new surgical techniques/management. Ventricular tachycardias are caused by reentry around the surgical scars/patches and valves. Many predictive factors have been proposed, which suffer from poor accuracy. There is currently no recommended indication for prophylactic implantable cardioverter defibrillator implantation-except maybe in the case of multiple risk factors-while radiofrequncy ablation may be proposed in secondary prevention with or even without a back-up implantable cardioverter defibrillator in selected cases...
February 17, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28220241/-icd-in-elderly-patients
#14
Carsten W Israel
Treatment with an implantable cardioverter-defibrillator (ICD) represents a prognostic but not symptomatic therapy. It should therefore be restricted to patients where an improvement of prognosis is possible and reasonable. ICD implantation should only be performed in patients with a life expectancy of at least 1 year at reasonable quality of life. The decision in which patient improvement of prognosis is no longer a desirable target is problematic, both medically and ethically. It is not entirely clear in which elderly patient an ICD therapy can convey prognostic benefit despite comorbidity and competitive life-threatening diseases, as it is unclear how old age should be defined...
February 20, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28219565/epicardial-implantable-cardioverter-defibrillator-in-a-2-month-old-infant
#15
Koichi Sughimoto, Yuta Tsuchida, Hidenori Hayashi, Shinzo Torii, Tadashi Kitamura, Tetsuya Horai, Kagami Miyaji
We describe the implantation of an implantable cardioverter defibrillator (ICD) in a 2-month-old infant with frequent sustained ventricular tachycardia (VT) refractory to antiarrhythmic agents. An epicardial ICD shock coil lead and pacing leads were placed, as was a cumbersome device console that was stored in a pocket between the left external and internal oblique muscles. These methods were safe and feasible even for such a small infant, and possible adverse events were avoided.
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28217234/inappropriate-shocks-from-a-subcutaneous-implantable-cardioverter-defibrillator-due-to-oversensing-during-periods-of-rate-related-bundle-branch-block
#16
Maria João Sousa, Tim Betts
The subcutaneous implantable cardioverter-defibrillator (S-ICD) is a novel technology with proven efficacy in sudden cardiac death prevention; however, there is a lack of long-term safety data. We describe the case of a 55-year-old female patient implanted with an S-ICD due to idiopathic ventricular fibrillation, who subsequently presented with inappropriate shocks leading to ventricular fibrillation that was successfully terminated by another shock. Inappropriate shocks were due to intermittent T wave oversensing during periods of rate-dependent right bundle branch block...
February 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28217231/successful-intermuscular-implantation-of-subcutaneous-implantable-cardioverter-defibrillator-in-a-japanese-patient-with-pectus-excavatum
#17
Yusuke Kondo, Marehiko Ueda, Joachim Winter, Miyo Nakano, Masahiro Nakano, Masayuki Ishimura, Kazuo Miyazawa, Kaoru Tateno, Yoshio Kobayashi
The entirely subcutaneous implantable cardioverter-defibrillator (ICD) system was developed to provide a life-saving defibrillation therapy that does not affect the heart and vasculature. The subcutaneous ICD is preferred over the transvenous ICD for patients with a history of recurrent infection presenting major life-threatening rhythms. In this case report, we describe the first successful intermuscular implantation of a completely subcutaneous ICD in a Japanese patient with pectus excavatum. There were no associated complications with the device implantation or lead positioning...
February 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28217224/mortality-and-predictors-of-appropriate-implantable-cardioverter-defibrillator-therapy-in-japanese-patients-with-multicenter-automatic-defibrillator-implantation-trial-ii-criteria
#18
Yoshimori An, Kenji Ando, Yoshimitsu Soga, Akihiro Nomura, Michio Nagashima, Kentaro Hayashi, Yu Makihara, Masato Fukunaga, Ken-Ichi Hiroshima, Masakiyo Nobuyoshi, Masahiko Goya
BACKGROUND: Data regarding long-term mortality and factors influencing appropriate therapies in Japanese patients with implantable cardioverter defibrillators (ICD), who satisfy the Multicenter Automatic Defibrillator Implantation Trial II (MADIT II) criteria for primary prevention, remain scarce. METHODS: A total of 118 consecutive patients who underwent ICD implantation without any prior ventricular arrhythmic event, from January 2000 to December 2012, were enrolled based on the MADIT II criteria: left ventricular ejection fraction (LVEF) of ≤30% with ischemic heart disease and at least 4 weeks after a myocardial infarction...
February 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28217223/long-term-reliability-of-sweet-tip-type-screw-in-leads
#19
Asuka Takano, Gaku Sekita, Minako Watanabe, Hiroshi Mukaida, Sayaka Komatsu, Haruna Tabuchi, Hidemori Hayashi, Takashi Tokano, Masataka Sumiyoshi, Yuji Nakazato, Hiroyuki Daida
BACKGROUND: Active fixation leads have provided stable atrial and ventricular pacing; however, long-term follow-up data have not been satisfactory. The purpose of this study was to investigate the long-term reliability of active fixation leads and their electrical characteristic stability. METHODS: A total of 1196 pacing leads were implanted in 830 patients consecutively between 2002 and 2013. In this retrospective study, we were able to trace 1092 leads in 750 patients to investigate the prognosis of implanted leads...
February 2017: Journal of Arrhythmia
https://www.readbyqxmd.com/read/28217220/identification-and-management-of-right-ventricular-perforation-using-pacemaker-and-cardioverter-defibrillator-leads-a-case-series-and-mini-review
#20
REVIEW
Mohammad Ali Akbarzadeh, Reza Mollazadeh, Salma Sefidbakht, Soraya Shahrzad, Negar Bahrololoumi Bafruee
Right ventricular perforation is a rare but serious complication of permanent pacemaker and implantable cardioverter-defibrillator implantation, with a reported prevalence rate of 0.1-6%. Generally, there is a high incidence of asymptomatic lead perforation with otherwise normal function. Some patients present with a stabbing chest pain and shortness of breath or pacemaker malfunction. However, in some cases, tamponade or adjacent tissue injury may be seen. The exact risk factors for lead perforation are not yet clear...
February 2017: Journal of Arrhythmia
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