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https://www.readbyqxmd.com/read/28715316/virtual-humans-for-implantable-device-safety-assessment-in-mri-mitigating-magnetic-resonance-imaging-hazards-for-implanted-medical-devices
#1
James E Brown, Rui Qiang, Paul J Stadnik, Larry J Stotts, Jeffrey A Von Arx
Magnetic resonance imaging (MRI) is the preferred modality for soft tissue imaging because of its nonionizing radiation and lack of contrast agent. Due to interactions between the MR system and active implantable medical devices (AIMDs), patients with implants such as pacemakers are generally denied access to MRI, which presents a detriment to that population. It has been estimated that 50-75% of patients with a cardiac device were denied access to MRI scanning and, moreover, that 17% of pacemaker patients need an MRI within 12 months of implantation [1]...
July 2017: IEEE Pulse
https://www.readbyqxmd.com/read/28670989/-sudden-cardiac-death-due-to-sarcoidosis-case-report
#2
István Sejben, Zoltán Som, Gábor Cserni
Sarcoidosis is a systemic granulomatous disease of unknown aetiology, which is characterized by bilateral hilar lymphadenopathy and pulmonary disease. Clinically detected cardiac involvement occurs in 5% of sarcoid patients, although cardiac manifestations are discovered in 25% of the cases at autopsy. Sarcoid heart disease frequently causes atrioventricular block. The authors present the case of a 44-year-old man with bradycardia. On admission, second degree Mobitz II, then third degree atrioventricular block was diagnosed...
July 2017: Orvosi Hetilap
https://www.readbyqxmd.com/read/28640075/maximum-voltage-gradient-technique-for-optimization-of-ablation-for-typical-atrial-flutter-with-zero-fluoroscopy-approach
#3
MULTICENTER STUDY
Karol Deutsch, Janusz Śledź, Mariusz Mazij, Bartosz Ludwik, Michał Labus, Dariusz Karbarz, Bernadetta Pasicka, Michał Chrabąszcz, Arkadiusz Śledź, Monika Klank-Szafran, Laura Vitali-Sendoz, Tomasz Kameczura, Jerzy Śpikowski, Piotr Stec, Marek Ujda, Sebastian Stec
Radiofrequency catheter ablation (RFCA) is an established effective method for the treatment of typical cavo-tricuspid isthmus (CTI)-dependent atrial flutter (AFL). The introduction of 3-dimensional electro-anatomic systems enables RFCA without fluoroscopy (No-X-Ray [NXR]). The aim of this study was to evaluate the feasibility and effectiveness of CTI RFCA during implementation of the NXR approach and the maximum voltage-guided (MVG) technique for ablation of AFL.Data were obtained from prospective standardized multicenter ablation registry...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28593660/inhibition-of-left-ventricular-stimulation-due-to-left-ventricular-lead-failure-and-the-left-ventricular-t-wave-protection-algorithm-in-patient-with-cardiac-resynchronization-therapy-and-pacemaker-dependency
#4
Andrzej Ząbek, Barbara Małecka, Maciej Dębski, Krzysztof Boczar, Jacek Lelakowski
The electrocardiogram (ECG) interpretation in patients with cardiac resynchronization therapy (CRT) is often a perplexing problem. The difficulty in the device evaluation increases in the presence of unfamiliar timing cycles and a lead dysfunction. Authors describe a special function of a Biotronik CRT devices called the left ventricle T-wave protection (LVTP), and demonstrate its behavior in a patient with left ventricular (LV) lead failure. This report shows that sometimes it might be difficult to understand the loss of resynchronization in 12-lead ECG when LVTP feature is on, and a malfunction of left ventricular lead sensing occurs...
June 8, 2017: Annals of Noninvasive Electrocardiology
https://www.readbyqxmd.com/read/28502870/comparison-of-longevity-and-clinical-outcomes-of-implantable-cardioverter-defibrillator-leads-among-manufactures
#5
Satoshi Kawada, Nobuhiro Nishii, Yoshimasa Morimoto, Akihito Miyoshi, Motomi Tachibana, Hiroyasu Sugiyama, Koji Nakagawa, Atsuyuki Watanabe, Hiroshi Morita, Hiroshi Ito
BACKGROUND: An early failure of the Biotronik Linox S/SD implantable cardioverter defibrillator (ICD) lead has been reported. We have also experienced several cases with early failure of Linox leads. OBJECTIVE: Our aim was to assess the longevity of Linox S/SD compared to Sprint Fidelis, Sprint Quattro and Endotak Reliance leads. METHODS: We retrospectively reviewed patients who had undergone implantation of Linox S/SD (n=90), Sprint Fidelis (n=37), Sprint Quattro (n=27) or Endotak Reliance (n=50) leads between June 2000 and December 2013 at our hospital...
May 11, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28491761/use-of-biotronik-closed-loop-pacemaker-to-treat-recurrent-syncope-in-pediatric-patient-with-dysautonomia
#6
Jennfier Shortland, Orhan Uzun, Deirdre Wilson, Graham A Stuart, Mark A Walsh
No abstract text is available yet for this article.
January 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28255544/externalized-conductors-and-insulation-failure-in-biotronik-defibrillator-leads-history-repeating-or-a-false-alarm
#7
REVIEW
Elia De Maria, Ambra Borghi, Lorenzo Bonetti, Pier Luigi Fontana, Stefano Cappelli
Conductor externalization and insulation failure are frequent complications with the recalled St. Jude Medical Riata implantable cardioverter-defibrillator (ICD) leads. Conductor externalization is a "unique" failure mechanism: Cables externalize through the insulation ("inside-out" abrasion) and appear outside the lead body. Recently, single reports described a similar failure also for Biotronik leads. Moreover, some studies reported a high rate of electrical dysfunction (not only insulation failure) with Biotronik Linox leads and a reduced survival rate in comparison with the competitors...
February 16, 2017: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/28220938/performance-of-the-new-biomonitor-2-af-insertable-cardiac-monitoring-system-can-better-be-worse
#8
Philipp Lacour, Phi Long Dang, Martin Huemer, Abdul Shokor Parwani, Philipp Attanasio, Burkert Pieske, Leif-Hendrik Boldt, Wilhelm Haverkamp, Florian Blaschke
BACKGROUND: Implantable loop recorders (ILR) are valuable tools for the investigation of patients with suspected arrhythmias. The BioMonitor 2-AF is a novel insertable ILR with enhanced atrial fibrillation (AF) detection algorithm and remote monitoring capability. OBJECTIVE: The objective of this first-in-human study with the BioMonitor 2-AF was to analyze course of P-wave sensing performance and R-wave amplitude, prevalence of false and correctly sensed and classified episodes, and effectiveness of remote monitoring...
May 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28108202/evaluation-of-coronary-flow-conditions-in-complex-coronary-artery-bifurcations-stenting-using-computational-fluid-dynamics-impact-of-final-proximal-optimization-technique-on-different-double-stent-techniques
#9
Gianluca Rigatelli, Marco Zuin, Fabio Dell'Avvocata, Dobrin Vassilev, Ramesh Daggubati, Thach Nguyen, Nguyen Van Viet Thang, Nicolas Foin
BACKGROUND/PURPOSE: Computational fluid dynamics (CFD) have been recently adopted in many fields of cardiovascular medicine and in interventional cardiology. Using CFD analysis we compared the use of different PCI procedures, with and without the utilization of a proximal optimization technique (POT), on a complex coronary artery bifurcation. METHODS/MATERIALS: For the analysis, we considered a hypothetic model of a left anterior descending artery-diagonal Medina 1,1,1 bifurcation type with a diameter of the proximal main branch (MB) and the side branch (SB) set at 3...
June 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/27969804/tct-448-biotronik-safety-and-clinical-performance-of-the-drug-eluting-orsiro-stent-in-the-treatment-of-subjects-with-single-de-novo-coronary-artery-lesions-ii-bioflow-ii-4-year-clinical-results
#10
Ton Slagboom, Michael Haude, Thierry Lefevre, Salim Hayek, Karl Stangl, Franz-Josef Neumann, Rafaelruiz Salmeron, Manel Sabate, Gert Richardt, Bela Merkely, Javier Goicolea, Johannes Bilger, Paul Barragan, Ron Waksman, Stephan Windecker
No abstract text is available yet for this article.
November 1, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27909501/-two-for-the-price-of-one-a-single-lead-implantable-cardioverter-defibrillator-system-with-a-floating-atrial-dipole
#11
REVIEW
Nicole E Worden Md, Musab Alqasrawi Md, Siva M Krothapalli Md, Alexander Mazur Md
In patients known to be a high risk for sudden cardiac arrest, implantable cardioverter defibrillators (ICD) are a proven therapy to reduce risk of death. However, in patients without conventional indications for pacing, the optimal strategy for type of device, dual- versus single-chamber, remains debatable. The benefit of prophylactic pacing in this category of patients has never been documented. Although available atrial electrograms in a dual chamber system improve interpretation of stored arrhythmia events, allow monitoring of atrial fibrillation and may potentially reduce the risk of inappropriate shocks by enhancing automated arrhythmia discrimination, the use of dual-chamber ICDs has a number of disadvantages...
April 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27892602/the-analog-blanking-period-of-implantable-cardiac-rhythm-devices
#12
S Serge Barold, Andreas Kucher
BACKGROUND: Analog blanking periods (BPs) that hold down the display of electrograms (EGMs) in cardiac rhythm devices have received much less attention than the well-known digital BPs which do not influence the EGM display. In Biotronik devices (Biotronik GmbH, Berlin, Germany), when a paced event initiates an analog BP in one chamber (right atrium, right ventricle [RV], or left ventricle [LV]), an identical cross-chamber analog BP starts in the other two chambers. METHODS: All clinical observations were recorded from patients with Biotronik devices...
February 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27848030/-implantable-loop-recorder-biomonitor%C3%A2-2-biotronik
#13
REVIEW
Thorsten Lewalter, Clemens Jilek
The implantable loop recorder BioMonitor 2 is available with an emphasis on syncope and one on detection of atrial tachycardias. The BioMonitor 2 can be easily implanted. The BioMonitor 2 pilot study showed a high and over time stable signal and the telemetric performance was above average.
December 2016: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/27823996/evaluation-of-safety-and-efficacy-of-qinming8631-dr-implantable-cardiac-pacemaker-in-chinese-patients-a-prospective-multicenter-randomized-controlled-trial-of-the-first-domestically-developed-pacemaker-of-china
#14
RANDOMIZED CONTROLLED TRIAL
Mei-Xiang Xiang, Dong-Qi Wang, Jing Xu, Zheng Zhang, Jian-Xin Hu, Dong-Mei Wang, Xiang Gu, He-Ping Liu, Tao Guo, Xiang-Jun Yang, Feng Ling, Jia-Feng Lin, Shang-Lang Cai, Guo-Bin Zhu, Jian-An Wang
BACKGROUND: High cost of imported pacemakers is a main obstacle for Chinese patients suffering from bradyarrhythmia, and a domestically developed pacemaker will help lower the burden. This study aimed to evaluate the safety and efficacy of Qinming8631 DR (Qinming Medical, Baoji, China), the first domestically developed dual-chamber pacemaker of China, compared with a commercially available pacemaker Talos DR (Biotronik, Berlin, Germany) in Chinese patients. METHODS: A prospective randomized trial was conducted at 14 centers in China...
November 20, 2016: Chinese Medical Journal
https://www.readbyqxmd.com/read/27806902/very-thin-strut-biodegradable-polymer-everolimus-eluting-and-sirolimus-eluting-stents-versus-durable-polymer-zotarolimus-eluting-stents-in-allcomers-with-coronary-artery-disease-bio-resort-a-three-arm-randomised-non-inferiority-trial
#15
RANDOMIZED CONTROLLED TRIAL
Clemens von Birgelen, Marlies M Kok, Liefke C van der Heijden, Peter W Danse, Carl E Schotborgh, Martijn Scholte, R Melvyn Tjon Joe Gin, Samer Somi, K G van Houwelingen, M G Stoel, Frits H A F de Man, J Hans W Louwerenburg, Marc Hartmann, Paolo Zocca, Gerard C M Linssen, Job van der Palen, Carine J M Doggen, Marije M Löwik
BACKGROUND: In patients with coronary artery disease, treated with durable polymer-coated drug-eluting stents, the life-long presence of the polymer might delay arterial healing. Novel very thin strut biodegradable polymer stents, which leave only a bare metal stent after polymer resorption, might improve long-term outcome. We investigated in allcomers the safety and efficacy of three stents eluting either everolimus, sirolimus, or zotarolimus, often clinically used but never compared, of which the biodegradable polymer everolimus-eluting stent was never before assessed in allcomers...
November 26, 2016: Lancet
https://www.readbyqxmd.com/read/27796409/new-implantable-cardiac-monitor-with-three-lead-ecg-and-active-noise-detection
#16
J Lauschke, M Busch, W Haverkamp, A Bulava, R Schneider, D Andresen, H Nägele, C Israel, G Hindricks, D Bänsch
BACKGROUND: A new implantable cardiac monitor (BioMonitor, Biotronik) with a continuous remote monitoring option was prospectively implanted in patients with suspected arrhythmias or for therapy control after atrial fibrillation (AF) ablation. A three-lead ECG detection was intended to make the implantation more independent of the implantation site and the electrical heart axis. Because noise is a frequent problem in implantable cardiac monitors, an active noise detection algorithm was implemented...
October 28, 2016: Herz
https://www.readbyqxmd.com/read/27778352/long-term-stability-and-clinical-utility-of-amplified-atrial-electrograms-in-a-single-lead-icd-system-with-floating-atrial-electrodes
#17
Nicole E Worden, Musab Alqasrawi, Alexander Mazur
BACKGROUND: Available atrial electrograms in implantable cardioverter defibrillators (ICDs) improve arrhythmia diagnosis, allow monitoring for atrial fibrillation, and may reduce the risk of inappropriate therapies. A recently introduced ICD system using a single-lead with floating atrial electrodes provides diagnostic capability of a dual-chamber system without placing an additional lead. Data on long-term clinical performance of this system are limited. METHODS: We retrospectively analyzed data from 35 consecutive patients implanted with Biotronik VR-T DX devices and Linox(Smart) DX leads...
December 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27748971/risk-of-electromagnetic-interference-induced-by-dental-equipment-on-cardiac-implantable-electrical-devices
#18
Jaume Miranda-Rius, Eduard Lahor-Soler, Lluís Brunet-Llobet, Xavier Sabaté de la Cruz
Patients with cardiac implantable electrical devices should take special precautions when exposed to electromagnetic fields. Proximity to equipment used in clinical dentistry may cause interference. This study evaluated in vitro the risks associated with different types/makes of cardiac devices and types of dental equipment. Six electronic dental tools were tested on three implantable cardioverter defibrillators and three pacemakers made by different manufacturers. Overall, the risk of interference with the pacemakers was 37% lower than with the implantable cardioverter defibrillators...
December 2016: European Journal of Oral Sciences
https://www.readbyqxmd.com/read/27702865/atrial-fibrillation-detection-using-a-novel-three-vector-cardiac-implantable-monitor-the-atrial-fibrillation-detect-study
#19
Giuseppe Ciconte, Massimo Saviano, Luigi Giannelli, Zarko Calovic, Mario Baldi, Cristiano Ciaccio, Amarild Cuko, Raffaele Vitale, Daniele Giacopelli, Manuel Conti, Felicia Lipartiti, Federica Giordano, Fabio Maresca, Mario Moscatiello, Gabriele Vicedomini, Vincenzo Santinelli, Carlo Pappone
AIMS: Continuous rhythm monitoring is valuable for adequate atrial fibrillation (AF) management in the clinical setting. Subcutaneous leadless implantable cardiac monitors (ICMs) yield an improved AF detection, overcoming the intrinsic limitations of the currently available external recording systems, thus resulting in a more accurate patient treatment. The study purpose was to assess the detection performance of a novel three-vector ICM device equipped with a dedicated AF algorithm. METHODS AND RESULTS: Sixty-six patients (86...
October 4, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27644061/pausing-with-the-gauze-inhibition-of-temporary-pacemakers-by-radiofrequency-scan-during-cardiac-surgery
#20
Matthew R Williams, Douglas B Atkinson, Vassilios J Bezzerides, Koichi Yuki, Kathryn Franklin, Alfonso Casta, Mark E Alexander
BACKGROUND: Radiofrequency identification (RFID) detection systems are used to detect retained surgical sponges and may cause electromagnetic interference (EMI), altering intended function of cardiac pacing systems. Three pediatric patients requiring temporary pacing for postoperative atrioventricular block experienced transient inhibition of ventricular pacing during the use of RFID detection system. Bench testing was performed to evaluate the mechanism of pacemaker inhibition. METHODS: Impedance of temporary pacing wires was obtained using a pacing system analyzer...
November 2016: Anesthesia and Analgesia
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