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https://www.readbyqxmd.com/read/28674619/on-x-versus-st-jude-medical-regent-mechanical-aortic-valve-prostheses-early-haemodynamics
#1
Robert Xu, Mohammad Rahnavardi, Bradley Pitman, Masoumeh Shirazi, Robert Stuklis, James Edwards, Michael Worthington
OBJECTIVE: We aimed to compare the early haemodynamic data of the On-X and St Jude Medical (SJM) Regent bileaflet mechanical prostheses in the aortic position. METHODS: A retrospective study was performed using data collected prospectively for a national database. Thirty-three patients who had aortic On-X valve (On-X group) and 33 matched patients who had aortic SJM Regent valve (SJM group) were included. The intraoperative and early postoperative data were collected...
2017: Open Heart
https://www.readbyqxmd.com/read/28400200/thalamic-dbs-with-a-constant-current-device-in-essential-tremor-a%C3%A2-controlled-clinical-trial
#2
Robert E Wharen, Michael S Okun, Barton L Guthrie, Ryan J Uitti, Paul Larson, Kelly Foote, Harrison Walker, Frederick J Marshall, Jason Schwalb, Blair Ford, Joseph Jankovic, Richard Simpson, Khashayar Dashtipour, Fenna Phibbs, Joseph S Neimat, R Malcolm Stewart, DeLea Peichel, Rajesh Pahwa, Jill L Ostrem
INTRODUCTION: This study of thalamic deep brain stimulation (DBS) investigated whether a novel constant-current device improves tremor and activities of daily living (ADL) in patients with essential tremor (ET). METHODS: A prospective, controlled, multicenter study was conducted at 12 academic centers. We investigated the safety and efficacy of unilateral and bilateral constant-current DBS of the ventralis intermedius (VIM) nucleus of the thalamus in patients with essential tremor whose tremor was inadequately controlled by medications...
July 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28181727/significant-discrepancy-between-estimated-and-actual-longevity-in-st-jude-medical-implantable-cardioverter-defibrillators
#3
Harish Doppalapudi, James Barrios, Jose Cuellar, Melanie Gannon, Takumi Yamada, Vineet Kumar, William R Maddox, Vance J Plumb, Todd M Brown, H Tom McElderry
BACKGROUND: Real-time estimated longevity has been reported in pacemakers for several years, and was recently introduced in implantable cardioverter-defibrillators (ICDs). OBJECTIVE: We sought to evaluate the accuracy of this longevity estimate in St. Jude Medical (SJM) ICDs, especially as the device battery approaches depletion. METHODS: Among patients with SJM ICDs who underwent generator replacements due to reaching elective replacement indicator (ERI) at our institution, we identified those with devices that provided longevity estimates and reviewed their device interrogations in the 18 months prior to ERI...
May 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28110285/validation-of-a-clinical-screening-instrument-for-tumour-predisposition-syndromes-in-patients-with-childhood-cancer-tups-protocol-for-a-prospective-observational-multicentre-study
#4
Floor A M Postema, Saskia M J Hopman, Corianne A J M de Borgie, Peter Hammond, Raoul C Hennekam, Johannes H M Merks, Cora M Aalfs, Jakob K Anninga, Lieke Pv Berger, Fonnet E Bleeker, Eveline Sjm de Bont, Corianne Ajm de Borgie, Charlotte J Dommering, Natasha Ka van Eijkelenburg, Peter Hammond, Raoul C Hennekam, Marry M van den Heuvel-Eibrink, Saskia Mj Hopman, Marjolijn Cj Jongmans, Wijnanda A Kors, Tom Gw Letteboer, Jan Lcm Loeffen, Johannes Hm Merks, Maran Jw Olderode-Berends, Floor Am Postema, Anja Wagner
INTRODUCTION: Recognising a tumour predisposition syndrome (TPS) in patients with childhood cancer is of significant clinical relevance, as it affects treatment, prognosis and facilitates genetic counselling. Previous studies revealed that only half of the known TPSs are recognised during standard paediatric cancer care. In current medical practice it is impossible to refer every patient with childhood cancer to a clinical geneticist, due to limited capacity for routine genetic consultation...
January 20, 2017: BMJ Open
https://www.readbyqxmd.com/read/28046397/we-h-bra-07-mechanistic-modelling-of-the-relative-biological-effectiveness-of-heavy-charged-particles
#5
S McMahon, A McNamara, J Schuemann, K Prise, H Paganetti
Purpose Uncertainty in the Relative Biological Effectiveness (RBE) of heavy charged particles compared to photons remains one of the major uncertainties in particle therapy. As RBEs depend strongly on clinical variables such as tissue type, dose, and radiation quality, more accurate individualised models are needed to fully optimise treatments. MethodsWe have developed a model of DNA damage and repair following X-ray irradiation in a number of settings, incorporating mechanistic descriptions of DNA repair pathways, geometric effects on DNA repair, cell cycle effects and cell death...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/27894302/anti-inflammatory-and-burn-injury-wound-healing-properties-of-the-shell-of-haliotis-diversicolor
#6
Zhi-Cheng Chen, Shing-Yi Sean Wu, Wei-Yang Su, Yuan-Chuan Lin, Yi-Hsin Lee, Wei-Hao Wu, Chun-Hong Chen, Zhi-Hong Wen
BACKGROUND: The shell of Haliotis diversicolor, or shijueming (SJM), is a type of traditional Chinese medicine. The SJM has appeared in historical records as early as the third and fourth centuries. Historical records have revealed that SJM had mainly been used to treat eye diseases. After the Qing Dynasty (1757), records had emerged, detailing the use of SJM for treating skin injuries, particularly for treating poorly managed ulcers or traumatic wounds. Furthermore, in our anti-inflammation-screening system, SJM significantly inhibited the expression of pro-inflammatory proteins...
November 28, 2016: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/27738070/mapping-guided-characterization-of-mechanical-and-electrical-activation-patterns-in-patients-with-normal-systolic-function-using-a-sensor-based-tracking-technology
#7
Christopher Piorkowski, Ole-A Breithardt, Hedi Razavi, Yelena Nabutovsky, Stuart P Rosenberg, Craig D Markovitz, Arash Arya, Sascha Rolf, Silke John, Jedrzej Kosiuk, Eric Olson, Charlotte Eitel, Yan Huo, Michael Döring, Sergio Richter, Kyungmoo Ryu, Thomas Gaspar, Frits W Prinzen, Gerhard Hindricks, Philipp Sommer
AIMS: In times of evolving cardiac resynchronization therapy, intra-procedural characterization of left ventricular (LV) mechanical activation patterns is desired but technically challenging with currently available technologies. In patients with normal systolic function, we evaluated the feasibility of characterizing LV wall motion using a novel sensor-based, real-time tracking technology. METHODS AND RESULTS: Ten patients underwent simultaneous motion and electrical mapping of the LV endocardium during sinus rhythm using electroanatomical mapping and navigational systems (EnSite™ NavX™ and MediGuide™, SJM)...
October 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/27588412/single-joint-movements-in-parkinson-s-disease-a-pulse-width-and-pulse-height-theory-review
#8
Rafael de Almeida Oliveira, Luciane Aparecida Pascucci Sande de Souza
The process by which the brain controls single-joint movements (SJM) is still not well understood. Some studies have defined rules describing the duration and magnitude of the agonist and antagonist muscles. Therefore, the purpose of this study was to analyze scientific publications about the electromyographic characteristics of SJM performed by patients with Parkinson's disease. A bibliographical review of the years 1989-2015 was performed using keywords such as electromyography, upper limb, and Parkinson's disease...
May 2017: Journal of Motor Behavior
https://www.readbyqxmd.com/read/27570204/planar-biaxial-testing-of-heart-valve-cusp-replacement-biomaterials-experiments-theory-and-material-constants
#9
Michel R Labrosse, Reza Jafar, Janet Ngu, Munir Boodhwani
OBJECTIVES: Aortic valve (AV) repair has become an attractive option to correct aortic insufficiency. Yet, cusp reconstruction with various cusp replacement materials has been associated with greater long-term repair failures, and it is still unknown how such materials mechanically compare with native leaflets. We used planar biaxial testing to characterize six clinically relevant cusp replacement materials, along with native porcine AV leaflets, to ascertain which materials would be best suited for valve repair...
November 2016: Acta Biomaterialia
https://www.readbyqxmd.com/read/27565119/performance-of-an-implantable-cardiac-monitor-to-detect-atrial-fibrillation-results-of-the-detect-af-study
#10
Georg Nölker, Julia Mayer, Leif-Hendrik Boldt, Karlheinz Seidl, Vincent VAN Driel, Thomas Massa, Marc Kollum, Johannes Brachmann, Thomas Deneke, Gerhard Hindricks, Werner Jung, Kyle J Brunner, Stacia Kraus, Alexander Hümmer, Thorsten Lewalter
INTRODUCTION: Reliable detection and monitoring of atrial fibrillation (AF) is essential for accurate clinical decision making, which can now be done continuously with the introduction of implantable cardiac monitors (ICM) The DETECT AF study evaluated the performance of the Confirm DM2102 ICM (St. Jude Medical, St. Paul, MN, USA) to accurately detect and monitor AF. METHODS: Ninety patients previously implanted with the ICM and with either suspected or known paroxysmal AF were enrolled at 12 centers in Germany and The Netherlands...
December 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27476571/-acquired-left-ventricular-right-atrial-communication-due-to-infective-endocarditis-report-of-a-case
#11
Yoshie Sakasai, Akinobu Sasaki, Osamu Shigeta, Yasuaki Tsumagari, Hidekazu Tsuneoka, Masako Misaki, Noriyuki Takeyasu
A 77-year-old woman presented with a 3-week history of low grade fever, appetite loss and dizziness. An electrocardiogram showed complete heart block. Echocardiography demonstrated severe aortic valve stenosis and a mass of probable vegetation 2 cm in diameter on the atrioventricular septum in the right atrium (RA), but no obvious intra-cardiac fistula. There was no growth of organism in blood cul tures. In the 4th week after admission, a harsh and continuous cardiac murmur was detected for the 1st time. Portable echocardiography revealed disappearance of the mass in the RA, and showed an intra-cardiac shunt from the left ventricle( LV) to RA...
August 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27476562/-migration-of-a-temporary-epicardial-pacing-lead-into-the-vascular-graft
#12
Yuichi Matsuzaki, Hideyuki Tomioka, Masaki Saso, Kei Kobayashi, Takashi Azuma, Satoshi Saito, Shigeyuki Aomi, Kenji Yamazaki
A 48-year-old man was refered to our hospital for the treatment of bicusp aortic valve and severe aortic regurgitation. He underwent Bentall procedure (SJM 25mm+HemashieldØ 28 mm composite graft). Temporary epicardial pacing lead( TPL) was placed on the right ventricle at the opetation, and was cut on his skin surface prior to discharge because of difficulty in traction removal. After 15 years from operation, follow up computered tomography and echocardiography showed migration of 2 retaining TPLs extending from vascular graft of ascending aorta to the right innominate artery...
August 2016: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/27009183/battery-longevity-from-cardiac-resynchronization-therapy-defibrillators-differences-between-manufacturers-and-discrepancies-with-published-product-performance-reports
#13
Mian Bilal Alam, Muhammad Bilal Munir, Rohit Rattan, Evan Adelstein, Sandeep Jain, Samir Saba
Aims: Cardiac resynchronization therapy (CRT) is an important treatment for heart failure that requires constant ventricular pacing, placing a high energy burden on CRT defibrillators (CRT-D). Longer battery life reduces the need for device changes and associated complications, thereby affecting patient outcomes and cost of care. We therefore investigated the time to battery depletion of CRT-D from different manufacturers and compared these results with manufacturers' published product performance reports (PPRs)...
March 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/26941338/combined-leadless-pacemaker-and-subcutaneous-implantable-defibrillator-therapy-feasibility-safety-and-performance
#14
F V Y Tjong, T F Brouwer, L Smeding, K M Kooiman, J R de Groot, D Ligon, R Sanghera, M J Schalij, A A M Wilde, R E Knops
AIMS: The subcutaneous implantable cardioverter-defibrillator (S-ICD) and leadless pacemaker (LP) are evolving technologies that do not require intracardiac leads. However, interactions between these two devices are unexplored. We investigated the feasibility, safety, and performance of combined LP and S-ICD therapy, considering (i) simultaneous device-programmer communication, (ii) S-ICD rhythm discrimination during LP communication and pacing, and (iii) post-shock LP performance. METHODS AND RESULTS: The study consists of two parts...
November 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/26899263/very-early-discharge-versus-early-discharge-versus-non-early-discharge-in-children-with-cancer-and-febrile-neutropenia
#15
REVIEW
Erik A H Loeffen, Esther M Te Poele, Wim J E Tissing, H Marike Boezen, Eveline S J M de Bont
BACKGROUND: Chemotherapy-induced neutropenia is a common adverse effect in children with cancer. Due to the high relative risk of infections and infectious complications, standard care for children with cancer and febrile neutropenia consists of routine hospitalization and parenteral administration of broad-spectrum antibiotics. However, there are less serious causes of febrile neutropenia; in a subgroup of these children, lengthy in-hospital treatment might be unnecessary. Various research groups have studied the adjustment of standard care to shorten in-hospital treatment for children with cancer and febrile neutropenia at low risk for bacterial infections...
February 22, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/26656235/early-haemodynamic-performance-of-a-latest-generation-supra-annular-aortic-bioprosthesis-experience-from-a-large-single-centre-series
#16
Marcus-André Deutsch, Anatol Prinzing, Kathrin Fiegl, Michael Wottke, Catalin C Badiu, Markus Krane, Gertrud Goppel, Sabine Bleiziffer, Ralf Guenzinger, Ruediger Lange
OBJECTIVES: The St Jude Medical (SJM) Trifecta bioprosthesis is a recently introduced stented trileaflet pericardial valve designed for supra-annular replacement of the aortic valve (AVR). We sought to evaluate the short-term clinical outcome and haemodynamic performance of the Trifecta valve after AVR. METHODS: A total of 837 patients with severe symptomatic aortic valve stenosis or regurgitation underwent AVR with the SJM Trifecta aortic valve prosthesis between January 2009 and March 2013...
June 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/26642371/in-vitro-hemodynamic-testing-of-amplatzer-plugs-for-paravalvular-leak-occlusion-after-transcatheter-aortic-valve-implantation
#17
Gaetano Burriesci, Paolo Peruzzo, Francesca Maria Susin, Giuseppe Tarantini, Andrea Colli
OBJECTIVE: We aimed to in-vitro test Amplatzer devices (Amplatzer Vascular Plug II and Amplatzer Vascular Plug III, SJM, St. Paul, MN) in closing PVL generated by transcatheter balloon expandable aortic valve prosthesis in order to quantify the effective treatment of PVL. BACKGROUND: Transcatheter aortic valve implantation (TAVI) procedures represent the treatment of choice for high risk patients. Despite evolving technologies paravalvular leak (PVL) is still a major unaddressed issue...
January 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/26585103/prolonged-electromechanical-interval-unmasks-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy-in-the-subclinical-stage
#18
Thomas P Mast, Arco J Teske, Anneline Sjm Te Riele, Judith A Groeneweg, Jeroen F Van Der Heijden, Birgitta K Velthuis, Peter Loh, Pieter A Doevendans, Toon A Van Veen, Dennis Dooijes, Jacques M De Bakker, Richard N Hauer, Maarten J Cramer
INTRODUCTION: Arrhythmogenic right ventricular dysplasia/cardiomyopathy (ARVD/C) is characterized by high incidence of ventricular arrhythmias. Overt ARVD/C is preceded by a subclinical stage with lack of detectable ECG and structural abnormalities. Activation delay is present before structural abnormalities and is a hallmark of arrhythmogenesis. Deformation imaging may unmask activation delay in the subclinical stage. METHODS: Three groups were compared: (1) mutation-positive definite ARVD/C-patients fulfilling 2010 Task Force criteria (TFC) (n = 44); (2) asymptomatic mutation carriers not fulfilling TFC and without history of ventricular arrhythmias (n = 31); and (3) controls (n = 30)...
March 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/26467152/a-prospective-comparison-of-remote-monitoring-systems-in-implantable-cardiac-defibrillators-potential-effects-of-frequency-of-transmissions
#19
COMPARATIVE STUDY
Ermenegildo de Ruvo, Luigi Sciarra, Anna Maria Martino, Marco Rebecchi, Renzo Venanzio Iulianella, Francesco Sebastiani, Alessandro Fagagnini, Alessio Borrelli, Antonio Scarà, Domenico Grieco, Claudia Tota, Federica Stirpe, Leonardo Calò
PURPOSE: Currently, cardiac implantable electronic devices allow remote monitoring (RM) based on periodic (Boston Latitude [LAT], Medtronic Carelink [MCL], St. Jude Merlin [SJM]) or daily transmissions (Biotronik Home Monitoring [BHM]). The aim of this study was to compare all the current RM systems in normal practice and investigate the effect of periodicity of RM transmissions on early detection of clinical and device-related events. METHODS: Two hundred eleven ICD patients (mean age 69±11 years, 158 males), were remotely followed up for 1 year (61 with BHM, 49 with LAT, 65 with MCL, 36 with SJM)...
January 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/26346033/twenty-year-outcome-of-aortic-valve-replacement-with-st-jude-medical-mechanical-valves-in-japanese-patients
#20
MULTICENTER STUDY
Kenji Minakata, Shiro Tanaka, Yohei Okawa, Tatsuo Kaneko, Shuichi Okonogi, Akihiko Usui, Tomonobu Abe, Nobushige Tamura, Shigeki Yanagi, Ryuzo Sakata
BACKGROUND: Bioprostheses have become increasingly popular for aortic valve replacement (AVR) in recent years, but mechanical valves are still the standard choice, especially for younger patients. The aim of this study was to assess the very long-term outcomes in Japanese patients who underwent AVR with St. Jude Medical (SJM) mechanical valves. METHODS AND RESULTS: From 1991 to 2001, a total of 816 patients underwent AVR with SJM mechanical valves in 5 hospitals...
2015: Circulation Journal: Official Journal of the Japanese Circulation Society
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