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https://www.readbyqxmd.com/read/29144513/predictors-of-heart-rhythm-disturbances-in-hypertensive-obese-patients-with-obstructive-sleep-apnea
#1
Lyudmila Sergeevna Korostovtseva, Nadezhda Edvinovna Zvartau, Oxana Petrovna Rotar, Yurii Vladimirovich Sviryaev, Aleksandra Olegovna Konradi
Objective: To assess the incidence and predictors of heart rhythm and conduction disturbances in hypertensive obese patients with and without obstructive sleep apnea (OSA). Methods: This is an open, cohort, prospective study. Out of 493 screened patients, we selected 279 hypertensive, obese individuals without severe concomitant diseases: 75 patients without sleep-disordered breathing (non-SDB group), and 204 patients with OSA (OSA group). At baseline, all patients underwent examination, including ECG, Holter ECG monitoring, and sleep study...
September 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29143810/next-generation-pacemakers-from-small-devices-to-biological-pacemakers
#2
REVIEW
Eugenio Cingolani, Joshua I Goldhaber, Eduardo Marbán
Electrogenesis in the heart begins in the sinoatrial node and proceeds down the conduction system to originate the heartbeat. Conduction system disorders lead to slow heart rates that are insufficient to support the circulation, necessitating implantation of electronic pacemakers. The typical electronic pacemaker consists of a subcutaneous generator and battery module attached to one or more endocardial leads. New leadless pacemakers can be implanted directly into the right ventricular apex, providing single-chamber pacing without a subcutaneous generator...
November 16, 2017: Nature Reviews. Cardiology
https://www.readbyqxmd.com/read/29141857/contemporary-characteristics-and-outcomes-in-chagasic-heart-failure-compared-with-other-nonischemic-and-ischemic-cardiomyopathy
#3
Li Shen, Felix Ramires, Felipe Martinez, Luiz Carlos Bodanese, Luis Eduardo Echeverría, Efraín A Gómez, William T Abraham, Kenneth Dickstein, Lars Køber, Milton Packer, Jean L Rouleau, Scott D Solomon, Karl Swedberg, Michael R Zile, Pardeep S Jhund, Claudio R Gimpelewicz, John J V McMurray
BACKGROUND: Chagas' disease is an important cause of cardiomyopathy in Latin America. We aimed to compare clinical characteristics and outcomes in patients with heart failure (HF) with reduced ejection fraction caused by Chagas' disease, with other etiologies, in the era of modern HF therapies. METHODS AND RESULTS: This study included 2552 Latin American patients randomized in the PARADIGM-HF (Prospective Comparison of ARNI With ACEI to Determine Impact on Global Mortality and Morbidity in Heart Failure) and ATMOSPHERE (Aliskiren Trial to Minimize Outcomes in Patients With Heart Failure) trials...
November 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29141184/unrecognized-venous-injuries-after-cardiac-implantable-electronic-device-transvenous-lead-extraction
#4
Khaldoun G Tarakji, Walid Saliba, Danny Markabawi, E Rene Rodriguez, Yoaav Krauthammer, Michael P Brunner, Ayman A Hussein, Bryan Baranowski, Daniel J Cantillon, Mohamed Kanj, Mark Niebauer, Jack Rickard, Thomas Callahan, Mingyuan Shao, David O Martin, Oussama M Wazni, Bruce L Wilkoff, Carmela D Tan
BACKGROUND: Major complication rate of transvenous lead extraction (TLE) is estimated around 1-2.0%. Laceration of the central veins can be fatal. OBJECTIVES: to define the incidence and extent of venous injuries on a microscopic level after TLE and compare it with the incidence of clinically documented events of venous laceration. METHODS: We studied all patients who underwent TLE at our tertiary center within 30 months via a variety of techniques...
November 7, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29139149/under-recognized-entity-of-the-transient-rise-in-the-atrial-capture-threshold-early-after-dual-chamber-pacemaker-implantation
#5
Yoshiko Uehara, Kentaro Yoshida, Akira Kimata, Kojiro Ogawa, Daisuke Abe, Yasuaki Tsumagari, Hidekazu Tsuneoka, Yoshiaki Yui, Yoko Ito, Mari Ebine, Noriyuki Takeyasu, Kazutaka Aonuma, Akihiko Nogami
BACKGROUND: Steroid-eluting pacemaker leads suppress acute rises in pacing threshold by preventing inflammatory processes. However, we occasionally encounter not persistent but transient rise in the atrial capture threshold (TRACT) early after pacemaker implantation. We believe that this phenomenon is under-recognized in clinical practice and may potentially lead to unnecessary re-intervention. We aimed to clarify the prevalence, predictors, and possible mechanisms of TRACT. METHODS AND RESULTS: We reviewed clinical records from 239 consecutive patients who underwent dual-chamber pacemaker implantation for sick sinus syndrome (SSS) (N = 102) or atrioventricular block (AVB) (N = 137)...
November 15, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29138937/effects-of-propofol-sedation-on-pacing-thresholds-results-from-an-observational-cohort-study
#6
Jakob Lüker, Arian Sultan, Tobias Plenge, Samuel Lee, Jan-Hendrik van den Bruck, Daniel Steven
BACKGROUND: Propofol is one of the most commonly used intravenous anaesthetic drugs for surgical procedures. The use of propofol for sedation is also common practice during endoscopic procedures, electrophysiology studies, and ablation procedures, as well as pacemaker and defibrillator implantation. It was found that propofol alters the electrophysiologic properties of the heart and its conduction system. The effects of propofol on pacing thresholds are unknown and could have implications for pacemaker (PM) and defibrillator (ICD) implantation procedures, as well as sedation and anaesthesia in PM and ICD patients in general...
November 14, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/29138413/oscillators-that-sync-and-swarm
#7
Kevin P O'Keeffe, Hyunsuk Hong, Steven H Strogatz
Synchronization occurs in many natural and technological systems, from cardiac pacemaker cells to coupled lasers. In the synchronized state, the individual cells or lasers coordinate the timing of their oscillations, but they do not move through space. A complementary form of self-organization occurs among swarming insects, flocking birds, or schooling fish; now the individuals move through space, but without conspicuously altering their internal states. Here we explore systems in which both synchronization and swarming occur together...
November 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/29137967/procedural-and-thirty-day-outcomes-following-transfemoral-implantation-of-the-fully-repositionable-and-retrievable-lotus-valve-without-routine-pre-dilatation-in-a-consecutive-patient-cohort-a-single-centre-experience
#8
Neil Ruparelia, Katharine Thomas, James D Newton, Kate Grebenik, Amar Keiralla, George Krasopoulos, Rana Sayeed, Adrian P Banning, Rajesh K Kharbanda
BACKGROUND / PURPOSE: The Lotus valve (Boston Scientific, Natick, MA, USA) is a contemporary transcatheter aortic valve implantation (TAVI) device that is fully repositionable and retrievable to aid implantation and optimise procedural results. The ability to implant the device without routine pre-dilatation is another possible advantage reducing associated risks and procedure times. The aim of this study is to report procedural and 30-day outcomes following TAVI in a consecutive patient group presenting with severe symptomatic aortic stenosis with the Lotus valve system without routine pre-dilatation...
November 4, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29136617/prognostic-factors-in-patients-with-an-implanted-pacemaker-after-80-years-of-age-in-a-4-year-follow-up
#9
Krystyna Krzemień-Wolska, Andrzej Tomasik, Celina Wojciechowska, Karolina Barańska-Pawełczak, Ewa Nowalany-Kozielska, Wojciech Jacheć
BACKGROUND: The controversy over electrotherapy for patients aged >80 years occurs already at the stage of qualification for this treatment type and concerns optimal device selection, the implantation strategy, and the overall benefit from pacemaker therapy. The group also has a considerable number of cardiovascular risk factors, and the data from the literature on the impact of the pacing mode on the remote prognosis of this group are ambiguous. OBJECTIVE: Assessment of the risk factors for death among patients with implanted pacemakers >80 years of age in a 4-year follow-up...
November 15, 2017: Gerontology
https://www.readbyqxmd.com/read/29136152/concomitant-thoracoscopic-surgery-for-solitary-pulmonary-nodule-and-atrial-fibrillation
#10
Rongxin Lu, Ju Mei, Dongfang Zhao, Zhaolei Jiang, Haibo Xiao, Mingsong Wang, Nan Ma
OBJECTIVES: The incidence of both solitary pulmonary nodules (SPN) and non-valvular atrial fibrillation (NVAF) has increased over the past decade. We performed concomitant video-assisted thoracoscopic surgery with modified epicardial radiofrequency ablation procedure for NVAF and SPN resection. METHODS: Sixteen patients (7 men, mean age 62.6 ± 11.2 years) with SPN and NVAF underwent this procedure. Of these patients, 10 had paroxysmal atrial fibrillation and 6 persistent atrial fibrillation...
November 10, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29134535/current-status-of-cardiovascular-surgery-in-japan-2013-and-2014-a%C3%A2-report-based-on-the-japan-cardiovascular-surgery-database-2-congenital-heart-surgery
#11
Yasutaka Hirata, Norimichi Hirahara, Arata Murakami, Noboru Motomura, Hiroaki Miyata, Shinichi Takamoto
OBJECTIVES: We analyzed the mortality and morbidity of congenital heart surgery in Japan using the Japan Cardiovascular Surgery Database (JCVSD). METHODS: Data regarding congenital heart surgery performed between January 2013 and December 2014 were obtained from JCVSD. The 20 most frequent procedures were selected and the mortality rates and major morbidities were analyzed. RESULTS: The mortality rates of atrial septal defect repair and ventricular septal defect repair were less than 1%, and the mortality rates of tetralogy of Fallot repair, complete atrioventricular septal defect repair, bidirectional Glenn, and total cavopulmonary connection were less than 2%...
November 13, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29134433/practice-makes-perfect-relationship-between-hospital-procedure-volume-and-permanent-pacemaker-implantation-after-paroxysmal-supraventricular-tachycardia-ablation
#12
Vratika Agarwal, Neeraj Shah, Kathan Mehta, Anand Agarwal, Jonathan Willner, James Lafferty
PURPOSE: Paroxysmal supraventricular tachycardia (PSVT) ablation can result in injury to the atrioventricular (AV) node causing complete heart block requiring permanent pacemaker (PPM) implantation. Few studies have examined the impact of hospital PSVT ablation volume and PPM implantation rates post ablation. METHODS: We included adult patients from the Nationwide Inpatient Sample (NIS) database, from 1998 to 2011, using ICD-9 diagnoses codes 427.0 and 427.89 for PSVT and ICD-9 procedure code 37...
November 13, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29133848/community-effect-of-cardiomyocytes-in-beating-rhythms-is-determined-by-stable-cells
#13
Tatsuya Hayashi, Tetsuji Tokihiro, Hiroki Kurihara, Kenji Yasuda
The community effect of cardiomyocytes was investigated in silico by the change in number and features of cells, as well as configurations of networks. The theoretical model was based on experimental data and accurately reproduced recently published experimental results regarding coupled cultured cardiomyocytes. We showed that the synchronised beating of two coupled cells was tuned not to the cell with a faster beating rate, but to the cell with a more stable rhythm. In a network of cardiomyocytes, a cell with low fluctuation, but not a hight frequency, became a pacemaker and stabilised the beating rhythm...
November 13, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29133067/-subacute-myocardial-perforation-related-to-a-pacemaker-lead-case-report-and-literature-review
#14
Jorge González, Luisa Aguilera, Carlos Gutiérrez, Guillermo Delgado, Efrain Gaxiola
Myocardial perforation related to cardiac electronic devices leads is a rare, but unfortunate complication, since its clinical implications are potentially lethal. The fluoroscopic outcome of case of subacute right ventricular perforation is presented, together with an analysis based on a literature review.
November 10, 2017: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/29132703/rapid-deployment-aortic-valve-replacement-excellent-results-and-increased-effective-orifice-areas
#15
Parwis B Rahmanian, Süreyya Kaya, Kaveh Eghbalzadeh, Hruy Menghesha, Navid Madershahian, Thorsten Wahlers
BACKGROUND: The aim of this study was to evaluate the effects of rapid deployment aortic valve replacement (RDAVR) on surgical outcome and hemodynamics compared with standard aortic valve replacement (AVR). METHODS: One hundred sixty-three RDAVR patients (isolated, n = 67; combined with coronary artery bypass graft surgery [CABG], n = 96) were compared with a propensity matched control group (n = 163). Primary endpoints included association between valve type and procedure times, prosthesis size, transvalvular gradient, and indexed effective orifice area...
November 10, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29131801/real-world-experience-using-the-acurate-neo%C3%A2-prosthesis-30-day-outcomes-of-1000-patients-enrolled-in-the-savi-tf-registry
#16
Helge Möllmann, Christian Hengstenberg, Michael Hilker, Sebastian Kerber, Ulrich Schäfer, Tanja Rudolph, Axel Linke, Norbert Franz, Thomas Kuntze, Holger Nef, Utz Kappert, Thomas Walther, Michael O Zembala, Stefan Toggweiler, Won-Keun Kim
AIMS: The aim of the SAVI-TF registry was to assess the safety and performance of the self-expanding ACURATE neoTM transfemoral transcatheter heart valve in a large patient population with severe aortic stenosis and to investigate if the outcomes obtained in the CE-mark cohort can be replicated in an unselected all-comers population. METHODS AND RESULTS: From October 2014 until April 2016, 1000 patients were enrolled in this prospective, European multicenter registry...
November 14, 2017: EuroIntervention
https://www.readbyqxmd.com/read/29131294/clinical-echocardiographic-and-pacing-parameters-affecting-atrial-fibrillation-burden-in-tachycardia-bradycardia-patients
#17
Jan Bohdan Ciszewski, Tomasz Chwyczko, Ilona Kowalik, Wojciech Majda, Michał Mirosław Farkowski, Agnieszka Jankowska, Anna Borowiec, Paweł Syska, Hanna Szwed, Mariusz Pytkowski
BACKGROUND: The influence of different factors on the atrial fibrillation (AF) development in the population of tachycardia bradycardia syndrome (TBS) patients remains unclear. There is no data examining such an impact of different right ventricular pacing percentage (RVp%) profiles. AIM: The purpose of the study was to evaluate the relationship between the AF burden (AFB) and different clinical, echocardiographic and pacing parameters in TBS patients. METHODS: We performed a prospective, one-year registry of TBS patients with documented AF referred to the dual-chamber pacemaker (DDD) implantation...
November 13, 2017: Kardiologia Polska
https://www.readbyqxmd.com/read/29130619/a-feasibility-study-of-transaxillary-tavi-with-the-lotus-valve
#18
Sagar N Doshi, Sudhakar George, Chun Shing Kwok, Anthony Mechery, Mamas Mamas, Peter F Ludman, Jonathan N Townend, Moninder Bhabra
OBJECTIVES: To assess the feasibility of axillary transcatheter aortic valve implantation (TAVI) using the Lotus valve. BACKGROUND: TAVI is used to treat patients with severe aortic stenosis, with transfemoral (TF) access being the safest and most widely used route. In patients unsuitable for this, there are reports that the axillary artery may be safest alternative access route. The Lotus device is a fully retrievable 2nd generation transcatheter heart valve which is licensed for femoral and transaortic access...
November 11, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29129561/alcohol-septal-ablation-for-hypertrophic-obstructive-cardiomyopathy-a-16-year-australian-single-centre-experience
#19
Jason Nogic, Youlin Koh, Marek Bak, Robert P Gooley, Ian T Meredith, Liam M McCormick
BACKGROUND: Alcohol septal ablation (ASA), is a well-established treatment for symptomatic hypertrophic obstructive cardiomyopathy (HOCM). We report the acute, short and long-term clinical and echocardiographic outcomes of our experience in a single Australian centre over 16 years. METHODS: We retrospectively analysed consecutive patients presenting to our centre for ASA between March 2000 and July 2016. Local databases were interrogated along with direct patient or physician contact occurred where required...
October 13, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29128861/atrial-cardiomyopathy-in-an-adult-labrador-retriever-dog
#20
E Bomassi, J Rousselot, S Libermann, I Raymond Letron, S Etchepareborde, C Misbach
A 7-year-old castrated male Labrador retriever was examined for a 10-day history of weakness and syncope. Physical examination revealed bradycardia and a grade III/VI left apical systolic heart murmur. Electrocardiography demonstrated bradycardia, absence of P waves and an atrio-ventricular nodal escape rhythm. Echocardiography revealed marked biatrial enlargement. Thoracic radiographs showed no evidence of pulmonary edema. Routine plasma biochemistry and electrolytes, basal serum cortisol, total thyroxin concentration, and complete blood count were within normal limits...
November 2017: Schweizer Archiv Für Tierheilkunde
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