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https://www.readbyqxmd.com/read/28343311/mechanistic-insight-of-platelet-apoptosis-leading-to-non-surgical-bleeding-among-heart-failure-patients-supported-by-continuous-flow-left-ventricular-assist-devices
#1
Nandan K Mondal, Tielou Li, Zengsheng Chen, Hegang H Chen, Erik N Sorensen, Si M Pham, Michael A Sobieski, Steven C Koenig, Mark S Slaughter, Bartley P Griffith, Zhongjun J Wu
Non-surgical bleeding (NSB) is the most common clinical complication in heart failure (HF) patients supported by continuous-flow left ventricular assist devices (CF-LVADs). In this study, oxidative stress and alteration of signal pathways leading to platelet apoptosis were investigated. Thirty-one HF patients supported by CF-LVADs were divided into bleeder (n = 12) and non-bleeder (n = 19) groups. Multiple blood samples were collected at pre-implant (baseline) and weekly up to 1-month post-implant. A single blood sample was collected from healthy subjects (reference)...
March 25, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28343276/an-updated-review-of-cardiac-devices-in-heart-failure
#2
REVIEW
C Murphy, H Zafar, F Sharif
BACKGROUND: Heart failure has the highest rates of adult hospitalisations, the highest mortality rates and significant costs associated with its care. The cost of heart failure is expected continue to grow on a global scale, with $108 billion spent on heart failure in 2012. Mortality rates are high, with incident cases of heart failure resulting in 30% 1-year mortality, and in hospital mortality of acute heart failure, 28%. METHODS AND RESULTS: This article reviews the devices currently in use for the treatment of heart failure, as well as those that are under investigation...
March 25, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/28342841/use-of-a-parallel-stiff-wire-to-facilitate-percutaneous-impella-rp-ventricular-assist-device-positioning
#3
Francesco Giannini, Matteo Montorfano, Richard J Jabbour, Azeem Latib, Neil Ruparelia, Lorenzo Azzalini, Valeria Magni, Vittorio Romano, Michele De Bonis, Federico Pappalardo, Antonio Colombo
Despite optimal medical management, some patients with severe right ventricular failure fail to respond and may benefit from additional support with the implantation of a RV assist device. Experience to date with Impella RP is limited. We report a case of percutaneous Impella RP implantation, using a parallel stiff wire to reduce anatomical tortuosity by acting as a buddy-wire to facilitate device implantation and reduce the risk of tricuspid ring damage in a patient recently treated with tricuspid ring annuloplasty...
March 15, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28342643/the-influence-of-pre-left-ventricular-assist-device-lvad-implantation-glomerular-filtration-rate-on-long-term-lvad-outcomes
#4
Burhan Mohamedali, Geetha Bhat
BACKGROUND: Chronic kidney disease (CKD) is a known predictor for adverse outcomes in patients with advanced heart failure requiring left ventricular assist devices (LVADs). The effect of pre-LVAD glomerular filtration rate (GFR) on post-LVAD outcomes in CKD patients is not completely understood. Additionally, a subset of patients improve their GFR after LVAD placement. In this study we sought to determine the effects of pre-LVAD GFR on post-LVAD outcomes. METHODS: Two hundred and seventy consecutive patients with LVADs were enrolled...
February 17, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28340197/the-evolution-and-benefit-of-device-therapy-in-patients-listed-for-heart-transplant
#5
Bert Vandenberk, Mark Hinderks, Gabor Voros, Christophe Garweg, Johan Vanhaecke, Rik Willems
Aims: The latest 2015 ESC Guidelines on the prevention of sudden cardiac death make a Class IIa recommendation for ICD implantation in patients listed for heart transplantation. This recommendation was based on expert consensus in view of the sparsity of data. Methods and results: All patients listed for heart transplantation at the University Hospitals of Leuven from 2002 until 2014 were studied retrospectively. Exclusion criteria were age <16 years, cardiac disease other than ischaemic or dilated cardiomyopathy and re-transplantation...
March 9, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28337558/improving-on-the-diagnostic-characteristics-of-echocardiography-for-pulmonary-hypertension
#6
Kathleen Broderick-Forsgren, Clemontina A Davenport, Joseph A Sivak, Charles William Hargett, Michael C Foster, Andrew Monteagudo, Alicia Armour, Sudarshan Rajagopal, Kristine Arges, Eric J Velazquez, Zainab Samad
This retrospective study evaluated the diagnostic characteristics of a combination of echocardiographic parameters for pulmonary hypertension (PH). Right ventricular systolic pressure (RVSP) estimation by echocardiography (echo) is used to screen for PH. However, the sensitivity of this method is suboptimal. We hypothesized that RVSP estimation in conjunction with other echo parameters would improve the value of echo for PH. The Duke Echo database was queried for adult patients with known or suspected PH who had undergone both echo and right heart catheterization (RHC) within a 24 h period between 1/1/2008 and 12/31/2013...
March 24, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28333785/improving-decision-making-for-advanced-heart-failure-patients-and-caregivers
#7
Colleen K McIlvennan
In this month's Magnet® Perspectives column, Colleen K. McIlvennan, DNP, ANP, lead nurse practitioner, Advanced Heart Failure and Transplantation at the University of Colorado, discusses her groundbreaking research encompassing patients' and caregivers' emotional, rational, and fundamental beliefs when considering a left ventricular assist device (LVAD). Results have led to the development of 2 innovative decision aids that are currently in use by LVAD programs across the United States and Canada. Dr McIlvennan's efforts led to a $2 million grant from the Patient-Centered Outcomes Research Institute, as well as national recognition from the American Heart Association and the Heart Failure Society of America...
April 2017: Journal of Nursing Administration
https://www.readbyqxmd.com/read/28331172/an-anti-coagulation-conundrum-implantation-of-total-artificial-heart-in-a-patient-with-heparin-induced-thrombocytopenia-type-ii
#8
Theodore J Cios, Yuliana Salamanca-Padilla, Dmitri Guvakov
BACKGROUND Heparin-induced thrombocytopenia (HIT) is a rare but life-threatening complication of heparin administration. It can present a major clinical dilemma for physicians caring for patients requiring life-saving urgent or emergent cardiac surgery. Studies have been published examining the use of alternative anticoagulants for patients undergoing cardiopulmonary bypass (CPB), however, evidence does not clearly support any particular approach. Presently, there are no large-scale, prospective randomized studies examining the impact of alternative anticoagulants on clinical outcomes for HIT-positive patients requiring cardiac surgery...
March 23, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28330751/reduction-in-heart-failure-hospitalizations-with-ambulatory-hemodynamic-monitoring-seen-in-clinical-trials-is-maintained-in-the-real-world
#9
Akshay S Desai, Arvind Bhimaraj, Rupinder Bharmi, Rita Jermyn, Kunjan Bhatt, David Shavelle, Margaret M Redfield, Robert Hull, Jamie A Pelzel, Kevin Davis, Nirav Dalal, Philip B Adamson, J Thomas Heywood
BACKGROUND: In the CHAMPION trial, heart failure hospitalization (HFH) rates were lower in patients managed with guidance from an implantable pulmonary artery pressure (PAP) sensor compared to usual care. OBJECTIVES: To examine the effectiveness of ambulatory hemodynamic monitoring in reducing HFH outside the clinical trial setting. METHODS: We conducted a retrospective cohort study using US Medicare claims data from patients undergoing PAP sensor implantation between 6/1/2014 and 12/31/2015...
March 9, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28329457/hemolysis-during-open-heart-surgery-with-vacuum-assisted-venous-drainage-at-different-negative-pressures-in-pediatric-patients-weighing-less-than-10-kilograms
#10
Jae Gun Kwak, Jinkwon Lee, Minkyoung Park, Yu-Jin Seo, Chang-Ha Lee
BACKGROUND: This study examined the degree of hemolysis during vacuum-assisted venous drainage at different negative pressures to identify an adequate negative pressure that provides effective venous drainage without significant hemolysis in open-heart surgery in children weighing less than 10 kg. METHODS: Patients weighing less than 10 kg who underwent surgery for ventricular septal defect or atrial septal defect from 2011 to 2014 were enrolled. We used one of four negative pressures (20, 30, 40, or 60 mm Hg) for each patient...
March 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28329374/the-burden-of-haemocompatibility-with-left-ventricular-assist-systems-a-complex-weave
#11
Mandeep R Mehra
No abstract text is available yet for this article.
February 23, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28329284/contemporary-outcome-of-unplanned-right-ventricular-assist-device-for-severe-right-heart-failure-after-continuous-flow-left-ventricular-assist-device-insertion
#12
Daisuke Yoshioka, Hiroo Takayama, Reshad A Garan, Veli K Topkara, Jiho Han, Paul Kurlansky, Melana Yuzefpolskaya, Paolo C Colombo, Yoshifumi Naka, Koji Takeda
OBJECTIVES: The timely use of a right ventricular assist device (RVAD) becomes necessary for severe right heart failure (RHF) after left ventricular assist device (LVAD) insertion. This study evaluates outcomes in patients who required unplanned RVAD support early after continuous-flow (CF) LVAD insertion. METHODS: We retrospectively reviewed 305 patients who underwent HeartMate II/HeartWare CF-LVAD insertion between 2009 and 2014. Twenty-seven (9%) patients required unplanned RVAD for severe RHF early after LVAD insertion...
March 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329269/proteomics-highlights-decrease-of-matricellular-proteins-in-left-ventricular-assist-device-therapy%C3%A2
#13
Jasmin Hasmik Shahinian, Bettina Mayer, Stefan Tholen, Kerstin Brehm, Martin L Biniossek, Hannah Füllgraf, Selina Kiefer, Ulrike Heizmann, Claudia Heilmann, Florian Rüter, Martin Grapow, Oliver Thomas Reuthebuch, Friedrich Eckstein, Friedhelm Beyersdorf, Oliver Schilling, Matthias Siepe
OBJECTIVES: We investigated the impact of mechanical unloading with a left ventricular assist device (LVAD) on the myocardial proteome. METHODS: We collected 11 patient-matched samples of myocardial left ventricular tissue of patients with non-ischaemic dilate cardiomyopathy, harvested at time of LVAD implant ('pre-LVAD') and heart transplant ('post-LVAD'). Samples were studied by quantitative proteomics. Further we performed histological assessment of deposited collagens and immune infiltration in both pre- and post-LVAD samples...
February 20, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329206/precise-moulded-autologous-pericardial-configurations-for-aortic-cusp-reconstruction
#14
Mohammad Bashar Izzat, Khaled Hamzeh, Farouk Almohammad
OBJECTIVES: In order to facilitate surgical repair of complex aortic cusp deformities and restoration of aortic valve competence, new moulds were developed to shape the glutaraldehyde-treated autologous pericardium into precise cusp-like configurations that can be used in aortic cusp reconstruction. METHODS: The new moulds embodied the natural geometry of single aortic cusps, and a series of moulds were made available to correspond with all potential aortic cusp sizes...
February 27, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329164/large-animal-model-of-functional-tricuspid-regurgitation-in-pacing-induced-end-stage-heart-failure
#15
Marcin Malinowski, Alistair G Proudfoot, David Langholz, Lenora Eberhart, Michael Brown, Hans Schubert, Jeremy Wodarek, Tomasz A Timek
OBJECTIVES: Functional tricuspid regurgitation (FTR) is common in patients with advanced heart failure and frequently complicates left ventricular assist device implantation yet remains poorly understood. We set out to establish large animal model of FTR that could serve as a research platform to investigate the pathogenesis of FTR associated with end-stage heart failure. METHODS: : Through right thoracotomy, ten adult sheep underwent implantation of pacemaker with epicardial LV lead, five sonomicrometry crystals on the right ventricle, and left and right ventricular telemetry pressure sensors during a beating heart off-pump procedure...
February 21, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329162/the-value-of-fluorine-18-deoxyglucose-positron-emission-tomography-scans-in-patients-with-ventricular-assist-device-specific-infections%C3%A2
#16
Alexander M Bernhardt, Mustafa A Pamirsad, Chantal Brand, Daniel Reichart, Milena Tienken, Markus J Barten, Andreas Schaefer, Hanno Grahn, Meike Rybczynski, Tobias Deuse, Hermann Reichenspurner, Florian M Wagner
BACKGROUND: Infections are major complications in patients with ventricular assist devices (VAD). Positron emission tomography with deoxyglucose marked by fluorine-18 ( 18 F-FDG PET/CT) is a diagnostic tool to scan for tissue with high metabolism as present in infections. The specificity of 18 F-FDG PET/CT to discriminate between infection and an aseptic reaction of the implanted device is not defined and its evaluation is the aim of this retrospective analysis. METHODS: Until September 2015 a total of 100 patients underwent VAD implantations in our institution...
February 20, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329112/comparison-of-paracorporeal-and-continuous-flow-ventricular-assist-devices-in-children-preliminary-results%C3%A2
#17
Mohamed S Nassar, Asif Hasan, Teresa Chila, Stephan Schueler, Carola Pergolizzi, Zdenka Reinhardt, Stephen Lord, Fabrizio De Rita, Lee Ferguson, Jon Smith, Simon Haynes, John O'Sullivan, Bari Murtuza
OBJECTIVES: With the scarcity of organs, a durable, reliable ventricular assist device (VAD) is required. The Berlin Heart EXCOR ® (BH) remains the most established VAD in the paediatric population. Implantable continuous flow (CF) VADs have been introduced to the paediatric field with encouraging early results. In this study, we compared the results of a newly introduced CF VAD (HeartWare VAD [HVAD] ® ) to results in a matched group of BH recipients. METHODS: The study included patients aged <16 years who received mechanical left VAD (LVAD) support between December 2005 and January 2016...
February 16, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329060/first-series-of-left-ventricular-assist-device-exchanges-to-heartmate-3
#18
Jasmin S Hanke, Sebastian V Rojas, Günes Dogan, Christina Feldmann, Erik Beckmann, Ezin Deniz, Bettina Wiegmann, Jana-Elena Michaelis, L Christian Napp, Dominik Berliner, Malakh Shrestha, Johann Bauersachs, Axel Haverich, Jan D Schmitto
OBJECTIVES: Left ventricular assist device (LVAD) exchange is becoming a standard surgical procedure. The exchange procedure is an opportunity to upgrade patients to a new generation pump that offers advanced reduction of adverse events or longer battery hours. METHODS: We performed an analysis of 6 consecutive patients who underwent LVAD exchange to HeartMate 3 either from a HeartWare or HeartMate (HM) II device. Minimally invasive operations were performed through a lateral thoracotomy...
March 13, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28328585/mechanical-support-with-impella-during-malignant-arrhythmia-ablation-a-case-report-on-the-growing-trend-in-the-electrophysiology-laboratory
#19
Adam C Adler, Ramesh Kodavatiganti
Congenitally corrected transposition of the great arteries is a rare form of congenital heart disease in which the persistence of the right ventricle as the systemic ventricle leads to heart failure, tricuspid valve insufficiency, and arrhythmia. Supraventricular arrhythmias are especially common in these patients. We discuss the anesthetic management of a 33-year-old patient with congenitally corrected transposition of the great arteries who required a ventricular assist device to maintain cardiac output during ablation of supraventricular tachyarrythmia...
March 17, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28328570/concomitant-valve-in-valve-transcatheter-aortic-valve-replacement-and-left-ventricular-assist-device-implantation
#20
Takashi Murashita, David L Joyce, Alberto Pochettino, John M Stulak, Lyle D Joyce
Redo aortic valve replacement (AVR) performed simultaneously with left ventricular assist device (LVAD) implantation carries potential for increased mortality rates. Although transcatheter AVR has been used for patients with previous LVAD placement, no literature reports concomitant valve-in-valve transcatheter AVR and LVAD implantation. Our patient had severe aortic prosthetic valve deterioration and advanced heart failure. Given the risks associated with reoperative aortic valve surgery, we chose transcatheter AVR at the time of LVAD implantation...
March 22, 2017: Innovations: Technology and Techniques in Cardiothoracic and Vascular Surgery
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