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https://www.readbyqxmd.com/read/28818562/conduction-recovery-and-avoidance-of-permanent-pacing-after-transcatheter-aortic-valve-implantation
#1
Corinne Marzahn, Cornel Koban, Martin Seifert, Akihiro Isotani, Michael Neuß, Frank Hölschermann, Christian Butter
BACKGROUND: Transcatheter aortic valve implantation (TAVI) is an established treatment option for patients with severe aortic stenosis and high surgical risk. Currently, various prosthesis types are available. Atrioventricular block (AVB) requiring pacemaker (PM) implantation is a typical complication after TAVI. This study investigated the recovery of AV node conduction and mid-term outcome of patients with or without PM implantation after TAVI according to prosthesis type. METHODS: From July 2008 to May 2015, 856 transcatheter heart valves were implanted at our center (age: 80...
August 14, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28804238/percutaneous-closure-of-the-aorto-ostial-origin-of-a-coronary-artery-saphenous-bypass-graft-with-a-large-pseudoaneurysm-using-the-amplatzer-muscular-ventricular-septal-defect-occluder
#2
Nicolas W Shammas, Majid Z Chammas, Jon Robken, Dale Geiss
We report the case of a 76-year-old male patient with a history of coronary artery bypass graft surgery presented with a large pseudoaneurysm emerging from a previously occluded saphenous bypass graft (SVG). A largely contained hematoma is seen in the mediastinum on computed tomography angiography (CTA) of the chest. Flow was seen from the ascending aorta into the pseudoaneurysm through the aorto-ostial opening of the bypass graft. Closure of the aorto-ostial origin of the graft was performed using the AMPLATZER muscular ventricular septal defect (VSD) occluder (St Jude's Medical, St...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28791582/physiological-mitral-annular-dynamics-preserved-after-ring-annuloplasty-in-mid-term-period
#3
Masaaki Ryomoto, Masataka Mitsuno, Mitsuhiro Yamamura, Hiroe Tanaka, Naosumi Sekiya, Hisashi Uemura, Ayaka Sato, Daisuke Ueda, Yuji Miyamoto
OBJECTIVE: Mitral annular structure and dynamics after mitral ring annuloplasty using transesophageal echocardiography during the operation have been reported. We evaluated mitral annular structure and dynamics of three different rings in the mid-term period postoperatively. METHODS: Thirty-one patients underwent mitral valve repair for degenerative mitral insufficiency. The MEMO 3D ring (semi-flexible), Carpentier-Edwards Physio II ring (semi-rigid), and St. Jude Medical Rigid Saddle Ring (rigid) were implanted in 15, 12, and eight patients, respectively, from September 2009 to February 2015...
August 8, 2017: General Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28760474/impact-of-postoperative-liver-dysfunction-on-survival-after-left-ventricular-assist-device-implantation
#4
Kaustav Majumder, John R Spratt, Christopher T Holley, Samit S Roy, Rebecca J Cogswell, Kenneth Liao, Ranjit John
BACKGROUND: Liver dysfunction in left ventricular assist device (LVAD) recipients is common both before and after implantation. Postoperative liver dysfunction (PLD) develops in some LVAD recipients without preoperative liver dysfunction. The aim of this study was to assess clinical outcomes in such patients. METHODS: Records of all patients undergoing implantation of a HeartMate II (HM II, St. Jude Medical, Inc, Minneapolis, MN) LVAD at a single center at the University of Minnesota from January 2005 through June 2014 were analyzed...
July 28, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28760470/improved-approach-with-subcostal-exchange-of-the-heartmate-ii-left-ventricular-assist-device-difference-in-on-and-off-pump
#5
Ann C Gaffey, Carol W Chen, Jennifer J Chung, Emily Phillips, Joyce Wald, Matthew L Williams, David W Low, Michael A Acker, Pavan Atluri
BACKGROUND: The HeartMate II (St. Jude Medical, Inc, St. Paul, MN [previously Thoratec]) left ventricular assist device (LVAD) exchange has traditionally involved a redo sternotomy. Alternate minimally invasive subcostal approaches have the advantage of avoiding sternal reentry, excessive bleeding, and prolonged recovery. METHODS: This retrospective review included patients who underwent an exchange from May 2009 to March 2016. The patients were divided into three cohorts: (1) redo sternotomy, (2) subcostal approach involving cardiopulmonary bypass (CPB) (ON-CPB SC), and (3) subcostal approach off the CPB pump (OFF-CPB SC)...
July 28, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28754393/totally-leadless-dual-device-implantation-for-combined-spontaneous-ventricular-tachycardia-defibrillation-and-pacemaker-function-a-first-report
#6
Fozia Zahir Ahmed, Colin Cunnington, Manish Motwani, Amir Masood Zaidi
Subcutaneous implantable cardioverter defibrillators (S-ICDs) provide effective defibrillation, while also reducing the risk of long-term lead problems. However, S-ICDs do not offer bradycardia or antitachycardia pacing and therefore use has been limited. Combined implantation of an S-ICD with a leadless pacemaker (LP) has been proposed to overcome this limitation. Although a handful of combined S-ICD/LP implantations have been reported for Nanostim (St Jude Medical, St Paul, MN) as well as Micra LP (Medtronic, Minneapolis, MN) systems, none have documented delivery of appropriate shock therapies for spontaneous ventricular tachycardia...
August 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28754075/oval-housing-for-the-st-jude-medical-bileaflet-mechanical-heart-valve
#7
Hadi Mohammadi, Guy Fradet
The St. Jude Medical bileaflet mechanical heart valve was approved by the Food and Drug Administration in late 1970s. The basic idea for the design of the valve is simply two semicircular flat plates pivoting on hinges. The overall performance of St. Jude Medical valves such as blood flow being central, the leaflets opening completely, and the pressure drop across the valve being trivial is satisfactory. St. Jude Medical valves provide an improved hemodynamics compared to the other mechanical heart valve models; however, their non-physiological hemodynamics which may lead to red blood cells lysis and thrombogenicity still remains a major issue...
July 1, 2017: Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine
https://www.readbyqxmd.com/read/28705736/a-worldwide-experience-of-the-management-of-battery-failures-and-chronic-device-retrieval-of-the-nanostim-leadless-pacemaker
#8
Dhanunjaya Lakkireddy, Reinoud Knops, Brett Atwater, Petr Neuzil, John Ip, Elkin Gonzalez, Paul Friedman, Pascal Defaye, Derek Exner, Kazutaka Aonuma, Rahul Doshi, Johannes Sperzel, Vivek Reddy
BACKGROUND: The Nanostim leadless pacemaker (LP) met the primary endpoints in an investigational device exemption trial, and was shown to be fully retrievable percutaneously. In October 2016, St Jude Medical issued a worldwide alert of a battery malfunction that caused lost pacing output and LP communication. OBJECTIVE: To report the battery failure mechanism and incidence and the worldwide patient management, including device retrieval experiences. METHODS: The affected LP battery is a custom lithium-carbon monofluoride cell...
July 10, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28674619/on-x-versus-st-jude-medical-regent-mechanical-aortic-valve-prostheses-early-haemodynamics
#9
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/28669505/bioprosthetic-valve-fracture-to-facilitate-transcatheter-valve-in-valve-implantation
#10
Keith B Allen, Adnan K Chhatriwalla, David J Cohen, John T Saxon, Sanjeev Aggarwal, Anthony Hart, Suzanne Baron, J Russell Davis, Alex F Pak, Danny Dvir, A Michael Borkon
BACKGROUND: Valve-in-valve transcatheter aortic valve replacement is less effective in small surgical bioprostheses. We evaluated the feasibility of bioprosthetic valve fracture with a high-pressure balloon to facilitate valve-in-valve transcatheter aortic valve replacement. METHODS: In vitro bench testing on aortic tissue valves was performed on 19-mm and 21-mm Mitroflow (Sorin, Milan, Italy), Magna and Magna Ease (Edwards Lifesciences, Irvine, CA), Trifecta and Biocor Epic (St...
June 29, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28668149/a-novel-technique-for-prosthetic-valve-retrieval-after-transcatheter-aortic-valve-embolization
#11
Francesco Giannini, Neil Ruparelia, Francesca Del Furia, Vittorio Romano, Marco Ancona, Antonio Mangieri, Damiano Regazzoli, Azeem Latib, Cosmo Godino, Francesco Ancona, Luciano Candilio, Richard Jabbour, Antonio Colombo, Matteo Montorfano
Although the rate of procedural complications during transcatheter aortic valve implantation has decreased because of technological advancement and increased operator experience, device embolization remains a rare but potentially fatal complication, even with new generation devices. We report, to our knowledge, the first case of Portico valve (St Jude Medical, Minneapolis, MN) migration despite apparent optimal initial implantation depth, which was retrieved using a novel strategy after failure of a traditional retrieval technique...
July 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28667812/utility-of-3d-oct-imaging-with-angiographic-co-registration-in-acute-coronary-syndrome-with-normal-or-near-normal-coronary-arteries
#12
Santiago Jesús Camacho Freire, Javier León Jiménez, Antonio Enrique Gómez Menchero, Jessica Roa Garrido, Rosa Cardenal Piris, José Francisco Díaz Fernández
The OPTIS integrated system (St. Jude Medical) is a new technology allowing the online co-registration of optical coherence tomography (OCT) images with the angiogram in the catheterization laboratory. Additionally, 3D navigation can be performed. This integration of OCT information on an angiographic roadmap could find broad application in the characterization of substrates causing acute coronary syndromes with normal or near-normal coronary arteries. The utility of OCT with co-registration for the guidance of percutaneous coronary intervention could be considerable in the management of patients with acute coronary syndromes...
July 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28660476/a%C3%A2-review-of-the-atrial-upper-rate-algorithms-of-st-jude-medical-abbott-cardiac-implantable-electronic-devices-incidence-of-repetitive-nonreentrant-ventriculoatrial-synchrony-rnrvas
#13
REVIEW
S S Barold
This review focuses on the manifestations of the three triggered atrial upper rate functions of St Jude Medical cardiac implantable electronic devices. The occurrence of repetitive nonreentrant ventriculoatrial synchrony (RNRVAS) is also evaluated as a basis for the development of automatic mode switching (AMS) and as a trigger for atrial tachycardia/atrial fibrillation (AT/AF) event recordings. RNRVAS is a common trigger for AMS because all the atrial events or intervals are used to calculate the filtered atrial rate interval (FARI)...
June 28, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28641844/the-in%C3%A2-vivo-morphology-of-post-infarct-ventricular-septal-defect-and-the-implications%C3%A2-for%C3%A2-closure
#14
Mark C K Hamilton, Jonathan C L Rodrigues, Robin P Martin, Nathan E Manghat, Mark S Turner
OBJECTIVES: The aim of this study was to define the dynamic in vivo morphology of post-infarct ventricular septal defect (PIVSD), which has not been previously described in living patients. BACKGROUND: PIVSD is a devastating complication of acute myocardial infarction. METHODS: The anatomic features of PIVSD, as demonstrated by computed tomography or magnetic resonance imaging, were retrospectively reviewed. RESULTS: Thirty-two PIVSDs were assessed, 16 left coronary artery and 16 right coronary artery PIVSDs...
June 26, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28610762/early-trifecta-valve-failure-report-of-a-cluster-of-cases-from-a-tertiary-care-referral-center
#15
Ankur Kalra, Hasan Rehman, Mahesh Ramchandani, Colin M Barker, Gerald M Lawrie, Ross M Reul, Michael J Reardon, Neal S Kleiman
BACKGROUND: The Trifecta valve (St Jude Medical, Inc, St Paul, Minn) was approved for commercial use by the US Food and Drug Administration in 2011. Several isolated cases have been reported since then, describing early structural valve deterioration. We report a case series of 8 Trifecta valve failures, describing patients' clinical substrate and management, and the pathologic characteristics of the explanted valves. METHODS: Trifecta valve failure occurred in 7 patients (8 valves) receiving 19-mm (n = 2), 21-mm (n = 3), 23-mm (n = 1), and 25-mm (n = 2) valves...
May 22, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28535554/anesthetic-considerations-and-perioperative-management-of-spinal-cord-stimulators-literature-review-and-initial-recommendations
#16
REVIEW
Michael E Harned, Brandon Gish, Allison Zuelzer, Jay S Grider
BACKGROUND: Patients with implanted spinal cord stimulators (SCS) present to the anesthesia care team for management at many different points along the care continuum. Currently, the literature is sparse on the perioperative management. What is available is confusing; monopolar electrocautery is contraindicated but often used, full body magnetic resonance imaging (MRI) is safe with particular systems but with other manufactures only head and specific extremities exams are safe. Moreover, there are anesthetizing locations outside of the operating room where implanted SCS can interact with surrounding medical equipment and pose significant risk to patient and device...
May 2017: Pain Physician
https://www.readbyqxmd.com/read/28533992/ambulatory-heart-failure-monitoring-a-systemic-review
#17
REVIEW
Muhammad A Mangi, Hiba Rehman, Muhammad Rafique, Michael Illovsky
Heart failure (HF) is one of the leading causes of morbidity and mortality and has a large effect on the country's economy. Although there have been major advances in HF monitoring, including more advanced pharmacological management and device-based therapy, HF-related mortality remains high. It is important to monitor HF so that HF-related hospitalization and mortality can be prevented. Due to the lower sensitivity of clinical features and biochemical markers, as well as the failure of telemonitoring in early detection of HF, more advanced techniques have been sought to more accurately predict impending HF, in order to address timely pharmacological management and prevent heart failure hospitalization (HFH)...
April 18, 2017: Curēus
https://www.readbyqxmd.com/read/28515113/force-sensing-catheters-during-pediatric-radiofrequency-ablation-the-federation-study
#18
Aarti S Dalal, Hoang H Nguyen, Tammy Bowman, George F Van Hare, Jennifer N Avari Silva
BACKGROUND: Based on data from studies of atrial fibrillation ablations, optimal parameters for the TactiCath (TC; St. Jude Medical, Inc) force-sensing ablation catheter are a contact force of 20 g and a force-time integral of 400 g·s for the creation of transmural lesions. We aimed to evaluate TC in pediatric and congenital heart disease patients undergoing ablation. METHODS AND RESULTS: Comprehensive chart and case reviews were performed from June 2015 to March 2016...
May 17, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28511801/intergenerational-differences-in-the-effects-of-transcatheter-closure-of-atrial-septal-defects-on-cardiac-function
#19
Hideki Tashiro, Kenji Suda, Motofumi Iemura, Youzou Teramachi
BACKGROUND: Little is known regarding intergenerational differences in the effects of atrial sepal defect (ASD) closure on the left heart. We therefore analyzed age-related serial changes in the left heart following ASD closure. METHODS: We studied 50 patients with an isolated ASD who underwent successful transcatheter closure using Amplatzer septal occluders (St. Jude Medical, Little Canada, MN, USA) between June 2007 and June 2013. Patients were divided into three age groups: young patients aged ≤17 years; middle-aged patients aged 18-50 years; and older patients aged >50 years...
May 13, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28462889/radiofrequency-pulmonary-vein-isolation-in-a-patient-with-dextrocardia-with-situs-inversus-totalis
#20
John Meulet, Geoffrey Trim, Ben Hunt, Kang-Teng Lim, Andrew James, Albert Henry, Wayne Pirihi, Paul Davies, Jason Brabant
BACKGROUND: We present a case report of a 67-year-old male with dextrocardia situs inversus totalis and persistent atrial fibrillation who presented for radiofrequency pulmonary vein isolation. METHODS: Pulmonary vein isolation was performed using the St Jude Medical Ensite NavX 3D mapping system with AccuNav ICE guidance. RESULTS: All pulmonary veins were successfully isolated. The procedure time was 125 mins with a fluoroscopy time of 44...
November 19, 2016: Heart, Lung & Circulation
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