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left ventricular assist device

David Snipelisky, Yogesh N V Reddy, Kevin Manocha, Aalok Patel, Shannon M Dunlay, Paul A Friedman, Thomas M Munger, Samuel J Asirvatham, Douglas L Packer, Yong-Mei Cha, Suraj Kapa, Peter A Brady, Peter A Noseworthy, Joseph J Maleszewski, Siva K Mulpuru
BACKGROUND: Patients with advanced heart failure (HF) are predisposed to ventricular arrhythmias (VA), particularly following implantation of an LVAD. There is minimal evidence for appropriate management strategies. OBJECTIVES: This study aimed to compare the burden of VA and response to ablation performed either before or following left ventricular assist device (LVAD) implantation. METHODS: We created a retrospective cohort of patients who underwent both VA ablation and HeartMate II (Thoratec, CA) LVAD implantation at Mayo Clinic (Rochester, MN)...
October 21, 2016: Journal of Cardiovascular Electrophysiology
Marina Pieri, Anna Mara Scandroglio, Marcus Müller, Panagiotis Pergantis, Alexandra Kretzschmar, Friedrich Kaufmann, Volkmar Falk, Thomas Krabatsch, Georg Arlt, Evgenij Potapov, Marian Kukucka
BACKGROUND AND AIM OF THE STUDY: Driveline infections in patients with implantable left ventricular assist devices (VAD) carry increasing risk for pump infection, thromboembolic events, decreased quality of life, and increased hospitalization. We report our experience with a surgical technique for refractory driveline infections without mediastinitis consisting of translocation and wrapping of the driveline with greater omentum tissue. METHODS: We retrospectively reviewed data of VAD patients who underwent surgical treatment by translocation and wrapping with omentum for severe chronic driveline infection...
October 20, 2016: Journal of Cardiac Surgery
Ju H Kim, Ramesh Singh, Francis D Pagani, Shashank S Desai, Nicholas A Haglund, Shannon M Dunlay, Simon Maltais, Keith D Aaronson, John M Stulak, Mary E Davis, Christopher T Salerno, Jennifer A Cowger, Palak Shah
BACKGROUND: Limited data exist on outcomes in patients greater than 70 years of age supported with continuous flow left ventricular assist devices (LVAD). METHODS: Data on 1,149 continuous-flow LVAD recipients was queried from the Mechanical Circulatory Support Research Network. Groups were assigned based on age: ≥70 years ("older patients") and <70 years. The primary outcome was survival at one-year based on age grouping. RESULTS: Compared with younger patients, (54...
October 17, 2016: Journal of Cardiac Failure
J Trent Magruder, Joshua C Grimm, Todd C Crawford, Ryan J Tedford, Stuart D Russell, Christopher M Sciortino, Glenn J R Whitman, Ashish S Shah
BACKGROUND: Our objective was to determine whether the choice of a HeartWare HVAD as opposed to a Heartmate II left ventricular assist device (HMII LVAD), impacts survival after heart transplantation after controlling for patient, donor, and center characteristics. METHODS: We queried the United Network for Organ Sharing (UNOS) database, which has recently made pretransplantation device duration available, for all adult patients undergoing bridge to transplantation (BTT) between January 2011 and March 2016...
October 17, 2016: Annals of Thoracic Surgery
O P Sanjay
The use of mechanical circulatory support for patients with severe heart failure is on the rist. The poeoperative, intraoperative and postoperative challenges the anaesthesiologists skills. These are discussed in this review.
October 2016: Annals of Cardiac Anaesthesia
Winifred Teuteberg, Mathew Maurer
No abstract text is available yet for this article.
October 2016: Circulation. Heart Failure
Kevin J Clerkin, Arthur Reshad Garan, Brian Wayda, Raymond C Givens, Melana Yuzefpolskaya, Shunichi Nakagawa, Koji Takeda, Hiroo Takayama, Yoshifumi Naka, Donna M Mancini, Paolo C Colombo, Veli K Topkara
BACKGROUND: Low socioeconomic status (SES) is a known risk factor for heart failure, mortality among those with heart failure, and poor post heart transplant (HT) outcomes. This study sought to determine whether SES is associated with decreased waitlist survival while on left ventricular assist device (LVADs) support and after HT. METHODS AND RESULTS: A total of 3361 adult patients bridged to primary HT with an LVAD between May 2004 and April 2014 were identified in the UNOS database (United Network for Organ Sharing)...
October 2016: Circulation. Heart Failure
Shannon M Dunlay, Jacob J Strand, Sara E Wordingham, John M Stulak, Angela J Luckhardt, Keith M Swetz
BACKGROUND: Despite the ability of left ventricular assist device as destination therapy (DT-LVAD) to prolong survival for many patients with advanced heart failure, little is known about the eventual end-of-life care that patients with DT-LVAD receive. METHODS AND RESULTS: All patients undergoing DT-LVAD at the Mayo Clinic in Rochester, Minnesota, from January 1, 2007, to September 30, 2014, who subsequently died before July 1, 2015, were included. Information about end-of-life care was obtained from documentation in the electronic medical record...
October 2016: Circulation. Heart Failure
Henrik Vase, Steffen Christensen, Aage Christiansen, Christian Juhl Therkelsen, Evald Høj Christiansen, Hans Eiskjær, Steen Hvidtfeldt Poulsen
INTRODUCTION: Mechanical circulatory support may be considered as a therapeutic option in selected patients with refractory cardiac arrest (rCA). Animal studies suggest a potential role for the Impella(®) left ventricular assist device in this setting, but so far no human data have been published. METHODS: Eight patients with rCA were treated with the Impella CP(®) device at our institution from November 2014 to October 2015. The Impella CP(®) was used at the discretion of the treating physicians in patients with rCA and pulseless electrical activity with presumed primary left ventricular failure...
October 14, 2016: Resuscitation
Jesus M Casida, Horng-Shiuann Wu, Martha Abshire, Bidisha Ghosh, James J Yang
BACKGROUND: There is no empirical study about the context and influence of self-management (SM) factors on quality of life (QOL) among adults with left ventricular assist device (LVADs). The purpose of this study was to close this knowledge gap by: (1) differentiating select SM factors (e.g., cognition) and overall QOL based on LVAD implant durations; (2) examining the relationships among SM factors and QOL variables; and (3) identifying which SM factors predict QOL. METHODS: An observational study was employed including 87 LVAD patients, ages 20 to 80 years, with mean implant durations of 18...
September 13, 2016: Journal of Heart and Lung Transplantation
Evgenij V Potapov, Marian Kukucka, Volkmar Falk, Thomas Krabatsch
No abstract text is available yet for this article.
September 22, 2016: Journal of Thoracic and Cardiovascular Surgery
David M Turer, Kelly L Koch, Todd M Koelling, Audrey H Wu, Francis D Pagani, Jonathan W Haft
Centrifugal and axial flow left ventricular assist devices have different hydrodynamic properties that may impact the effectiveness of left ventricular unloading. We sought to determine if patients implanted with the HeartWare HVAD (HW) and HeartMate II (HMII) had a similar degree of hemodynamic support by comparing parameters measured using echocardiography and right heart catheterization. Using our prospectively collected database, we identified 268 patients implanted with the HMII and 93 with the HW. Demographic characteristics were similar between groups...
July 26, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
Nikhil Kumar, Christopher A Troianos, Joshua S Baisden
In this report, we present the case of a patient with biventricular noncompaction cardiomyopathy, Ebstein anomaly, and a left atrial mass who required emergent placement of a left ventricular assist device. The noncompaction cardiomyopathy complicated the left ventricular assist device implantation procedure because the thickened, trabeculated myocardium made it difficult to place the inflow cannula. We discuss our perioperative management strategy, in which transesophageal echocardiography was used, to help the surgical team identify the proper cannula placement and provide a bridge to transplantation...
October 5, 2016: A & A Case Reports
Jonathan D Rich, Igor Gosev, Chetan B Patel, Susan Joseph, Jason N Katz, Peter M Eckman, Sangjin Lee, Kartik Sundareswaran, Ahmet Kilic, Brian Bethea, Behzad Soleimani, Brian Lima, Nir Uriel, Michael Kiernan
BACKGROUND: Early right-sided heart failure (RHF) after left ventricular assist device (LVAD) implantation is associated with increased mortality, but little is known about patients who develop late RHF (LRHF). We evaluated the incidence, risk factors, and clinical impact of LRHF in patients supported by axial-flow LVADs. METHODS: Data were analyzed from 537 patients enrolled in the HeartMate II (HM II; Thoratec/St. Jude) destination therapy clinical trial. LRHF was defined as the development of clinical RHF accompanied by the need for inotropic support occurring more than 30 days after discharge from the index LVAD implant hospitalization...
August 20, 2016: Journal of Heart and Lung Transplantation
Yoshifumi Itoda, Kan Nawata, Haruo Yamauchi, Osamu Kinoshita, Mitsutoshi Kimura, Minoru Ono
Aortic insufficiency (AI) is a significant complication of long-term support of continuous flow left ventricular assist device (CF-LVAD) for patients with end-stage heart failure. A 26-year-old female with osteogenesis imperfecta (OI) was diagnosed with dilated phase hypertrophic cardiomyopathy (d-HCM)) and was implanted with Jarvik 2000, for bridge to transplantation. AI gradually developed and surgical intervention was indicated. We performed central aortic valve closure (CAVC) instead of valve replacement 20 months after CF-LVAD implantation...
October 15, 2016: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
Snehal R Patel, Shivank Madan, Omar Saeed, Mohammed Algodi, Anne Luke, Marc Gibber, Daniel J Goldstein, Ulrich P Jorde
OBJECTIVES: This study sought to determine whether the nasal mucosa can serve as a surrogate for evaluating arteriovenous malformations (AVMs) related gastrointestinal (GI) bleeding in patients supported by continuous flow left ventricular assist devices (CF LVADs). BACKGROUND: Bleeding from the mucosal surfaces of GI tract, particularly AVMs, is the most common complication of CF LVAD support. The pathophysiology of AVM formation during CF LVAD support is of critical interest yet poorly understood; in large part because of the length and accessibility of the GI tract...
September 29, 2016: JACC. Heart Failure
Vikram Sood, Osman Alam, Vakhtang Tchantchaleishvili, Francis D Pagani, Keith D Aaronson, Jonathan Haft, David L Joyce, Lyle D Joyce, Richard C Daly, Simon Maltais, John M Stulak
BACKGROUND: Analyses of the HeartMate II left ventricular assist device are routinely performed after explant if returned to the manufacturer. Findings from manufacturer-reported pump analyses have not been correlated with pre-explant serum lactate dehydrogenase (LDH) values. METHODS: Between May 2004 and December 2014, 502 patients underwent primary HeartMate II implantation. Seventy pumps were explanted in 58 patients and returned to the manufacturer for pump analysis: 51 (73%) for suspected pump thrombosis, 12 (17%) for device-related infection, and 7 (13%) for percutaneous lead fracture...
October 12, 2016: Annals of Thoracic Surgery
M Hirschvogel, M Bassilious, L Jagschies, S M Wildhirt, M W Gee
A model for patient-specific cardiac mechanics simulation is introduced, incorporating a 3-dimensional finite element model of the ventricular part of the heart which is coupled to a reduced-order 0-dimensional closed-loop vascular system, heart valve and atrial chamber model.The ventricles are modeled by a nonlinear orthotropic passive material law. The electrical activation is mimicked by a prescribed parametrized active stress acting along a generic muscle fiber orientation. Our activation function is constructed such that the start of ventricular contraction and relaxation as well as the active stress curve's slope are parameterized...
October 15, 2016: International Journal for Numerical Methods in Biomedical Engineering
Alban-Elouen Baruteau, Thomas Barnetche, Luc Morin, Zakaria Jalal, Nicholas S Boscamp, Emmanuel Le Bret, Jean-Benoit Thambo, Julie A Vincent, Alain Fraisse, Alejandro J Torres
BACKGROUND: Transcatheter techniques are emerging for left atrial (LA) decompression under venoarterial extracorporeal membrane oxygenation (VA-ECMO). We aimed to assess whether balloon atrioseptostomy (BAS) is a safe and efficient strategy. METHODS: All patients who underwent percutaneous static BAS under VA-ECMO at four tertiary institutions were retrospectively reviewed. RESULTS: From 2000 to 2014, BAS was performed in 64 patients (32 adults and 32 children)...
October 14, 2016: European Heart Journal. Acute Cardiovascular Care
Tatsuya Nishikawa, Masashi Fujino, Ikutaro Nakajima, Yasuhide Asaumi, Yu Kataoka, Toshihisa Anzai, Kengo Kusano, Teruo Noguchi, Yoichi Goto, Kunihiro Nishimura, Yoshihiro Miyamoto, Keisuke Kiso, Satoshi Yasuda
AIMS: The prognostic impact of chronic total coronary occlusion (CTO) on implantable cardioverter-defibrillator (ICD) recipients remains unclear. METHODS AND RESULTS: Eighty-four consecutive patients with ischaemic heart disease who received ICD therapy for primary or secondary prevention were analysed. We investigated all-cause mortality and major adverse cardiac events (MACEs) including cardiac death, appropriate device therapy, hospitalization for heart failure, and ventricular assist device implantation...
October 13, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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