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https://www.readbyqxmd.com/read/28645834/left-ventricular-assist-device-therapy-for-destination-therapy-is-less-invasive-surgery-a-safe-alternative
#1
Sebastian V Rojas, Jasmin S Hanke, Murat Avsar, Philipp R Ahrens, Ove Deutschmann, Kirstin A Tümler, Aitor Uribarri, Sara Rojas-Hernández, Pedro L Sánchez, José M González-Santos, Axel Haverich, Jan D Schmitto
INTRODUCTION AND OBJECTIVES: The number of older patients with congestive heart failure has dramatically increased. Because of stagnating cardiac transplantation, there is a need for an alternative therapy, which would solve the problem of insufficient donor organ supply. Left ventricular assist devices (LVADs) have recently become more commonly used as destination therapy (DT). Assuming that older patients show a higher risk-profile for LVAD surgery, it is expected that the increasing use of less invasive surgery (LIS) LVAD implantation will improve postoperative outcomes...
June 20, 2017: Revista Española de Cardiología
https://www.readbyqxmd.com/read/28645826/continuous-flow-ventricular-assist-device-support-in-children-a-paradigm-change
#2
EDITORIAL
Iki Adachi
No abstract text is available yet for this article.
May 25, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28644683/use-of-percutaneous-left-ventricular-assist-device-impella-in-vasodilatory-poison-induced-shock
#3
JoAn R Laes, Chad Olinger, Jon B Cole
No abstract text is available yet for this article.
June 23, 2017: Clinical Toxicology
https://www.readbyqxmd.com/read/28643335/a-review-of-hemolysis-prediction-models-for-computational-fluid-dynamics
#4
REVIEW
Hai Yu, Sebastian Engel, Gábor Janiga, Dominique Thévenin
Flow-induced hemolysis is a crucial issue for many biomedical applications; in particular, it is an essential issue for the development of blood-transporting devices such as left ventricular assist devices, and other types of blood pumps. In order to estimate red blood cell (RBC) damage in blood flows, many models have been proposed in the past. Most models have been validated by their respective authors. However, the accuracy and the validity range of these models remains unclear. In this work, the most established hemolysis models compatible with computational fluid dynamics of full-scale devices are described and assessed by comparing two selected reference experiments: a simple rheometric flow and a more complex hemodialytic flow through a needle...
June 23, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28634001/the-effect-of-preoperative-cognitive-behavior-and-exercise-therapy-for-patient-with-implanted-lvad-in-korea-case-presentation
#5
Yong Gon Seo, Won Hah Park, Eun Seok Jeon, Ji Dong Sung, Mi Ja Jang
Left ventricular assist devices (LVADs) are used in patients with progressive heart failure symptoms to provide circulatory support. Patients with LVADs are referred to inpatient cardiac rehabilitation to prevent postoperative complications and improve aerobic capacity and quality of life (QOL). Preoperative exercise therapy for cardiac patients is an emerging treatment modality, and several studies have reported that it improves postoperative outcomes such as length of hospital stay and postoperative complications...
June 17, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28633256/successful-delivery-in-a-patient%C3%A2-with-left-ventricular-assist-device-and-unplanned-pregnancy
#6
George Makdisi, M Y Jan, Lauren Dungy-Poythress, I-Wen Wang, Marco A Caccamo
We report the case of a woman supported by a left ventricular assist device (LVAD) who presented at 20 weeks of gestation and decided against recommendations to continue with her pregnancy. This was managed with well-developed plan for a multidisciplinary team approach. With close and regular follow-up and regular adjustment of the patient's medications and LVAD parameters, successful delivery and outcome for both the mother and the newborn were achieved.
July 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28632696/infection-of-ventricular-assist-device-detected-and-monitored-by-18f-fdg-pet-ct
#7
Sébastien Dejust, Renaud Guedec-Ghelfi, Estelle Blanc-Autrant, Yannick Lepers, David Morland
We report a case of a 59-year-old man who presented with fever, sepsis, and left cervicothoracic cutaneous inflammation 13 months after implantation of Jarvik 2000 device. Device infection was suspected and F-FDG PET/CT showed an intense and homogeneous uptake along driveline cable. Bacteriological local sample showed Staphylococcus aureus. After adapted antibiotherapy, control F-FDG PET/CT displays treatment efficacy with no residual uptake in driveline. F-FDG PET/CT could be an important tool for early noninvasive detection of left ventricular assist device infection and monitoring antibiotherapy response...
June 19, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28631345/advantages-and-disadvantages-of-using-intravenous-tissue-plasminogen-activator-as-salvage-therapy-for-inoperable-heartware-thrombosis
#8
Robyn Basken, Charles M Bazzell, Richard Smith, Rajesh Janardhanan, Zain Khalpey
Device thrombosis is a devastating complication of left ventricular assist devices. The definitive treatment has been device exchange or explant. Evidence of increasing morbidity and mortality with device exchange has shifted strategies toward conservative management. In this report, we detail the use of thrombolytics as salvage therapy in a patient with an occlusive HeartWare ventricular assist device (HeartWare Inc., Framingham, MA) thrombus, resulting in long-term survival without further intervention.
June 19, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28623639/anemia-after-continuous-flow-left-ventricular-assist-device-implantation-characteristics-and-implications
#9
Javier Amione-Guerra, Ana S Cruz-Solbes, Arvind Bhimaraj, Barry H Trachtenberg, Sai R Pingali, Jerry D Estep, Myung H Park, Ashrith Guha
BACKGROUND: Anemia is common in patients with heart failure and is associated with adverse outcomes. Management of anemia in CF-LVAD patients is not well studied. Our purpose is to characterize and identify the etiology of anemia in CF-LVAD patients. Secondary objectives are to describe the effect of CF-LVAD on pre-existing anemia and assess its impact after CF-LVAD support. METHODS: Cross-sectional study from January to July 2015 of ambulatory patients supported with a CF-LVAD for at least 6-months that presented with hemoglobin <12 g/dL and no recent gastrointestinal bleeding...
June 14, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28621882/exercise-capacity-and-functional-performance-in-heart-failure-patients-supported-by-a-left-ventricular-assist-device-at-discharge-from-inpatient-rehabilitation
#10
Thomas Schmidt, Birna Bjarnason-Wehrens, Petra Bartsch, Ezin Deniz, Jan Schmitto, Sebastian Schulte-Eistrup, Detlev Willemsen, Nils Reiss
Adequate physical and functional performance is an important prerequisite for renewed participation and integration in self-determined private and (where appropriate) professional lives following left ventricular assist device (LVAD) implantation. During cardiac rehabilitation (CR), individually adapted exercise programs aim to increase exercise capacity and functional performance. A retrospective analysis of cardiopulmonary exercise capacity and functional performance in LVAD patients at discharge from a cardiac rehabilitation program was conducted...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28621816/control-of-a-pediatric-pulsatile-ventricular-assist-device-a-hybrid-cardiovascular-model-study
#11
Gianfranco Ferrari, Arianna Di Molfetta, Krzysztof Zieliński, Libera Fresiello, Krystyna Górczyńska, Krzysztof Jakub Pałko, Marek Darowski, Antonio Amodeo, Maciej Kozarski
The aim of this work is to study pediatric pneumatic ventricle (PVAD) performance, versus VAD rate (VADR) and native heart rate (HR) ratio Rr (VADR/HR). The study uses a hybrid model of the cardiovascular system (HCS). HCS consists of a computational part (a lumped parameter model including left and right ventricles, systemic and pulmonary arterial and venous circulation) interfaced to a physical part. This permits the connection of a VAD (15 mL PVAD). Echocardiographic and hemodynamic data of a pediatric patient (average weight 14...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28621461/the-use-of-eptifibatide-alone-or-in-combination-with-heparin-or-argatroban-for-suspected-thrombosis-in-patients-with-left-ventricular-assist-devices
#12
Abbas Bitar, Rajakrishnan Vijayakrishnan, Andrew Lenneman, Emma Birks, Todd Massey, Mark Slaughter, Dmitry Abramov
Pump thrombosis and hemolysis in patients with left ventricular assist devices (LVADs) are associated with significant morbidity and mortality. Intensification of anticoagulation has been suggested as potential therapy, with mixed results. The aim of this study is to assess the safety and efficacy of adding eptifibatide with or without an anticoagulation agent in managing patients with LVAD presenting with hemolysis and suspected pump thrombosis. This retrospective single center study included all patients who presented with their first episode of suspected pump thrombosis and were treated with eptifibatide with or without an anticoagulant between March 1, 2011 and July 30, 2015...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28617694/the-spectrum-of-general-surgery-interventions-in-pediatric-patients-with-ventricular-assist-devices
#13
Fady Kamel, Holger Buchholz, Bryan Dicken, Jennifer Conway
Ventricular assist devices (VADs) have positively impacted the management of heart failure. However, they come with a range of complications. Although general surgical complications have been assessed in adults with VADs, there is no study to date that has assessed general surgery intervention in the pediatric population. Fifty-two patients who received VADs from 2005 to 2015 at the Stollery Children's Hospital were assessed for general surgery intervention and anticoagulation status at the time of intervention...
June 13, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28616319/the-evolution-of-left-ventricular-assist-devices-a-moment-to-reflect
#14
EDITORIAL
Michael Kuehl, Jens Garbade
No abstract text is available yet for this article.
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28611860/renal-function-and-outcomes-with-use-of-left-ventricular-assist-device-implantation-and-inotropes-in-end-stage-heart-failure-a-retrospective-single-center-study
#15
Sean Verma, Emmanuel Bassily, Shane Leighton, Rahul Mhaskar, Igor Sunjic, Angel Martin, Nancy Rihana, Tambi Jarmi, Claude Bassil
BACKGROUND: Left ventricular assist device (LVAD) and inotrope therapy serve as a bridge to transplant (BTT) or as destination therapy in patients who are not heart transplant candidates. End-stage heart failure patients often have impaired renal function, and renal outcomes after LVAD therapy versus inotrope therapy have not been evaluated. METHODS: In this study, 169 patients with continuous flow LVAD therapy and 20 patients with continuous intravenous inotrope therapy were analyzed...
July 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28611126/patient-reported-health-related-quality-of-life-is-a-predictor-of-outcomes-in-ambulatory-heart-failure-patients-treated-with-left-ventricular-assist-device-compared-with-medical-management-results-from-the-roadmap-study-risk-assessment-and-comparative-effectiveness
#16
Josef Stehlik, Jerry D Estep, Craig H Selzman, Joseph G Rogers, John A Spertus, Keyur B Shah, Joyce Chuang, David J Farrar, Randall C Starling
BACKGROUND: The prospective observational ROADMAP study (Risk Assessment and Comparative Effectiveness of Left Ventricular Assist Device and Medical Management) demonstrated that ambulatory advanced heart failure patients selected for left ventricular assist device (LVAD) were more likely to be alive at 1 year on original therapy with ≥75-m improvement in 6-minute walk distance compared with patients assigned to optimal medical management. Whether baseline health-related quality of life (hrQoL) resulted in a heterogeneity of this treatment benefit is unknown...
June 2017: Circulation. Heart Failure
https://www.readbyqxmd.com/read/28606584/impact-of-a-modified-anti-thrombotic-guideline-on-stroke-in-children-supported-with-a-pediatric-ventricular-assist-device
#17
David N Rosenthal, Chacy A Lancaster, Doff B McElhinney, Sharon Chen, MaryLyn Stein, Aileen Lin, Lan Doan, Jenna M Murray, Mary Alice Gowan, Katsuhide Maeda, Olaf Reinhartz, Christopher S Almond
BACKGROUND: Stroke is the most feared complication associated with the Berlin Heart EXCOR pediatric ventricular assist device (VAD), the most commonly used VAD in children, and affects 1 in 3 children. We sought to determine whether a modified anti-thrombotic guideline, involving more intense platelet inhibition and less reliance on platelet function testing, is associated with a lower incidence of stroke. METHODS: All children supported with the EXCOR at Stanford from 2009 to 2014 were divided into 2 cohorts based on the primary anti-thrombotic guideline used to prevent pump thrombosis: (1) the Edmonton Anti-thrombotic Guideline (EG) cohort, which included children implanted before September 2012 when dual anti-platelet therapy was used with doses titrated to Thromboelastrography/PlateletMapping (TEG/PM); and (2) the Stanford Modified Anti-thrombotic Guideline (SG) cohort, which included children implanted on or after September 2012 when triple anti-platelet therapy was used routinely and where doses were uptitrated to high, weight-based dosing targets, with low-dose steroids administered as needed for inflammation...
May 20, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28606399/pediatric-continuous-flow-left-ventricular-assist-devices-no-longer-just-a-bridge-the-changing-of-a-mindset
#18
EDITORIAL
Chet R Villa, Angela Lorts, David L S Morales
No abstract text is available yet for this article.
May 17, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28604571/hvad-waveform-analysis-as-a-noninvasive-marker-of-pulmonary-capillary-wedge-pressure-a-first-step-toward-the-development-of-a-smart-left-ventricular-assist-device-pump
#19
Jonathan Grinstein, Daniel Rodgers, Sara Kalantari, Gabriel Sayer, Gene H Kim, Nitasha Sarswat, Sirtaz Adatya, Takeyoshi Ota, Valluvan Jeevanandam, Daniel Burkhoff, Nir Uriel
Flow waveforms are an important feature of the HVAD left ventricular assist device (LVAD) that provides information about HVAD function and patient hemodynamics. We assessed the properties of one specific aspect of the waveform, the slope of the ventricular filling phase (VFP), and its correlation with pulmonary capillary wedge pressure (PCWP). A total of 101 screenshots from the HVAD monitor and simultaneous hemodynamic measurements were obtained simultaneously during sequential stages of invasive hemodynamic ramp studies...
June 7, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28604570/successful-treatment-of-pediatric-ventricular-assist-device-thrombosis
#20
Devin Chetan, Holger Buchholz, Mary Bauman, Vijay Anand, Paula Holinski, Jennifer Conway
Pump thrombosis represents a significant cause of morbidity and mortality in patients on continuous flow ventricular assist devices (CF-VAD). Pump thrombosis in the pediatric CF-VAD population has been reported between 11% and 44%, with the largest reported series from the PediMACS registry reporting a rate of approximately 15%. We report our early experience with four pediatric patients who developed pump thrombosis on a CF-VAD. Our limited experience suggests that the treatment of pediatric VAD thrombosis can be approached with similar principles to the adult population...
June 7, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
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