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Condition: Ischemic Stroke
Procedure: Lung Transplant
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Total 75 results found since Jan 2013.
Fortuity or Causality in Minimally Invasive LVAD Implantation: Relation Between Outflow Graft Height of Implantation Along the Ascending Aorta and Cerebral Ischemic Events
To evaluate whether the site of implantation of the outflow-graft on the ascending aorta is related to the incidence of cerebral ischemic stroke events in patients undergoing minimally-invasive-LVAD-implantation.
Source: The Journal of Heart and Lung Transplantation - April 1, 2015 Category: Transplant Surgery Authors: J. Bejko, T. Bottio, G. Bortolussi, M. Gallo, R. Bianco, V. Tarzia, A. Guariento, G. Gerosa Source Type: research
Left Ventricular Assist Devices vs. the Total Artificial Heart: Which Causes More Cerebrovascular Accidents?
More recently, the continuous flow left ventricular assist devices (LVADs) have been more commonly used in patients (pts) with severe left heart failure. However, these devices also have risk for strokes, both ischemic and hemorrhagic. The Total Artificial Heart (TAH) has also been used in patients with biventricular heart failure at our single institution. Both continuous flow LVADs and TAH patients are systemically anti-coagulated with warfarin and aspirin. We sought to compare stroke rates between the LVAD patients and TAH pts.
Source: The Journal of Heart and Lung Transplantation - April 1, 2015 Category: Transplant Surgery Authors: C. Runyan, F. Arabia, L. Czer, M. Kittleson, E. Passano, F. Liou, J. Yabuno, H. Henry, D.H. Chang, J. Kobashigawa, J. Moriguchi Source Type: research
Blood pressure and stroke risk in left ventricular assist devices
Ischemic and hemorrhagic stroke are one of the most devastating outcomes arising from treatment of end-stage congestive heart failure with a left ventricular assist device (LVAD)1. Stroke after LVAD is associated with increased risk of mortality and is a leading cause of not qualifying for transplantation. The risk of stroke is one of many factors limiting more widespread adoption of this technology for end-stage heart failure. The risk factors for stroke in LVAD have been the subject of several studies, with recent infection2 and changes in anti-thrombotics being commonly found3.
Source: The Journal of Heart and Lung Transplantation - December 5, 2014 Category: Transplant Surgery Authors: Joshua Z. Willey Source Type: research
Early power elevations and adverse events with the HeartMate II left ventricular assist device: An unsettled issue
In a recent issue of this journal, Salerno et al1 evaluated the prevalence and potential impact of early power elevation (PEL) events (power ≥10 W in the first 14 days after implant) on future adverse outcomes, including mortality, hemorrhagic and ischemic stroke, hemolysis and pump thrombosis, among 138 patients requiring implantation of a HeartMate II left ventricular assist device (LVAD). Patients with a PEL (20%) had similar survival, complications rates and late power elevations compared with patients without a PEL.
Source: The Journal of Heart and Lung Transplantation - September 10, 2014 Category: Transplant Surgery Authors: Omar Wever-Pinzon, Ulrich P. Jorde Tags: Case Anecdotes, Comments and Opinions Source Type: research
Targeting hexokinase II to mitochondria to modulate energy metabolism and reduce ischaemia‐reperfusion injury in heart
This article is part of a themed issue on Mitochondrial Pharmacology: Energy, Injury & Beyond. To view the other articles in this issue visit http://dx.doi.org/10.1111/bph.2014.171.issue‐8
Source: British Journal of Pharmacology - March 28, 2014 Category: Drugs & Pharmacology Authors: Rianne Nederlof, Otto Eerbeek, Markus W Hollmann, Richard Southworth, Coert J Zuurbier Tags: Review Source Type: research
Post-approval study of a highly pulsed, low-shear-rate, continuous-flow, left ventricular assist device, EVAHEART: A Japanese multicenter study using J-MACS
Conclusions: The EVAHEART device provides safe, reliable and long-term circulatory support with improved survival in commercial settings of BTT in Japan, where the transplant waiting period is much longer. Incidences of GI bleeding, hemolysis, right ventricular failure, device thrombosis and mechanical failure were extremely rare in patients on EVAHEART devices.
Source: The Journal of Heart and Lung Transplantation - March 6, 2014 Category: Transplant Surgery Authors: Satoshi Saito, Kenji Yamazaki, Tomohiro Nishinaka, Yuki Ichihara, Minoru Ono, Syunei Kyo, Takashi Nishimura, Takeshi Nakatani, Koichi Toda, Yoshiki Sawa, Ryuji Tominaga, Tadahisa Tanoue, Yoshikatsu Saiki, Yoshiro Matsui, Takahiro Takemura, Hiroshi Niinami Tags: Featured Articles Source Type: research
Early elevations in pump power with the HeartMate II left ventricular assist device do not predict late adverse events
Background: The aim of this study was to evaluate the prevalence of early pump power elevation events in patients with the HeartMate II (HMII) and its impact on subsequent development of stroke and pump thrombosis.Methods: We analyzed>45,000 measurements of pump power and pump speed measured during the initial hospitalization period and>12,000 follow-up measurements obtained from 138 consecutive patients implanted with a HMII between January 2009 and December 2012. An early power elevation (PEL) event was defined as power ≥10 W within the first 14 post-operative days. Patients were divided into two groups: those with an ...
Source: The Journal of Heart and Lung Transplantation - March 3, 2014 Category: Transplant Surgery Authors: Christopher T. Salerno, Kartik S. Sundareswaran, Thomas P. Schleeter, Sina L. Moanie, David J. Farrar, Mary Norine Walsh Tags: Featured Articles Source Type: research
Low-molecular-weight heparin for anti-coagulation after left ventricular assist device implantation
Conclusions: LMWH in the setting of LVAD shows rapid and constant biologic efficacy. Anti-coagulation with LMWH appears feasible after LVAD implantation. These findings support further evaluation of LMWH as an alternative to unfractionated heparin in this patient cohort.
Source: The Journal of Heart and Lung Transplantation - October 28, 2013 Category: Transplant Surgery Authors: Sigrid E. Sandner, Julia Riebandt, Thomas Haberl, Stephane Mahr, Angela Rajek, Heinrich Schima, George M. Wieselthaler, Guenther Laufer, Daniel Zimpfer Tags: Featured Articles Source Type: research
Human bone marrow mesenchymal cells produce efficient localization in the brain and enhanced angiogenesis after intra-arterial delivery in rats with cerebral ischemia, but this is not translated to behavioral recovery.
In conclusion, human BMMSCs did not improve functional recovery in MCAO rats despite effective initial homing to the ischemic hemisphere and enhanced angiogenesis, when strict behavioral tests not affected by repeated testing and compensation were utilized.
PMID: 24177208 [PubMed - as supplied by publisher]
Source: Behavioural Brain Research - October 28, 2013 Category: Neurology Authors: Mitkari B, Nitzsche F, Kerkelä E, Kuptsova K, Huttunen J, Nystedt J, Korhonen M, Jolkkonen J Tags: Behav Brain Res Source Type: research
Carotid-bulb thrombus and continuous-flow left ventricular assist devices: A novel observation
The continuous-flow left ventricular assist device (LVAD) has emerged as a clinically important treatment strategy for patients with advanced-stage heart failure. However, LVADs are not without associated neurologic complications, including stroke. In one review, the incidence of stroke (both ischemic and hemorrhagic) with the HeartMate II (HM II; Thoratec, Pleasanton, CA) ranged from 2% to 18%. In another recent single-center study, the incidence was 10%. In that study, previous stroke, persistent malnutrition and inflammation, severity of heart failure and post-LVAD infections were associated with neurologic complications.
Source: The Journal of Heart and Lung Transplantation - October 28, 2013 Category: Transplant Surgery Authors: John T. Reul, George J. Reul, O.H. Frazier Tags: Research Correspondence Source Type: research
Gastrointestinal bleeding and subsequent risk of thromboembolic events during support with a left ventricular assist device
Background: Modern left ventricular assist devices (LVAD) require anti-coagulation (AC) with warfarin and anti-platelet therapy to prevent thromboembolic complications in patients. Gastrointestinal bleeding (GI) is a significant adverse event in these patients and treatment typically requires reduction or elimination of AC or anti-platelet therapy. It is not known whether alterations in AC to treat GI bleeding influence subsequent risk of thromboembolic (TE) events during LVAD support.Methods: Between July 2003 and September 2011, 389 patients (308 male) underwent implantation of a continuous-flow LVAD at the University of...
Source: The Journal of Heart and Lung Transplantation - September 9, 2013 Category: Transplant Surgery Authors: John M. Stulak, Dustin Lee, Jonathon W. Haft, Matthew A. Romano, Jennifer A. Cowger, Soon J. Park, Keith D. Aaronson, Francis D. Pagani Tags: Featured Articles Source Type: research
Targeting Hexokinase II to mitochondria to modulate energy metabolism and reduce ischemia‐reperfusion injury in heart
Summary
Mitochondrially‐bound hexokinase II (mtHKII) has long been known to confer cancer cells with their resilience against cell death. More recently, mtHKII has emerged as a powerful protector against cardiac cell death. mtHKII protects against IR injury in skeletal muscle and heart, attenuates cardiac hypertrophy and remodelling, and is one of the major end‐effectors through which ischemic preconditioning protects against myocardial ischemia‐reperfusion injury. Mechanisms of mtHKII cardioprotection against reperfusion injury entail the maintenance of regulated OMM permeability during ischemia and reperfusion resu...
Source: British Journal of Pharmacology - August 30, 2013 Category: Drugs & Pharmacology Authors: Rianne Nederlof, Otto Eerbeek, Markus W Hollmann, Richard Southworth, Coert J Zuurbier Tags: Review Article Source Type: research
A cardioprotective preservation strategy employing ex vivo heart perfusion facilitates successful transplant of donor hearts after cardiocirculatory death
Conclusion: In this experimental model of DCD, an EVHP strategy using initial reperfusion with a tepid adenosine-lidocaine cardioplegia and continuous myocardial perfusion minimizes myocardial injury and improves short-term post-transplant function compared with the current EVHP strategy using cold hyperkalemic cardioplegia before organ procurement and transplantation.
Source: The Journal of Heart and Lung Transplantation - June 27, 2013 Category: Transplant Surgery Authors: Christopher W. White, Ayyaz Ali, Devin Hasanally, Bo Xiang, Yun Li, Paul Mundt, Matthew Lytwyn, Simon Colah, Julianne Klein, Amir Ravandi, Rakesh C. Arora, Trevor W. Lee, Larry Hryshko, Stephen Large, Ganghong Tian, Darren H. Freed Tags: Original Pre-Clinical Science Source Type: research
Biodistribution of bone marrow mononuclear cells after intra-arterial or intravenous transplantation in subacute stroke patients.
CONCLUSION: BMMNC labeling with technetium-99m allowed imaging for up to 24 h after intra-arterial or intravenous injection in stroke patients.
PMID: 23477395 [PubMed - in process]
Source: Regenerative Medicine - March 1, 2013 Category: Genetics & Stem Cells Authors: Rosado-de-Castro PH, Schmidt Fda R, Battistella V, Lopes de Souza SA, Gutfilen B, Goldenberg RC, Kasai-Brunswick TH, Vairo L, Silva RM, Wajnberg E, Alvarenga Americano do Brasil PE, Gasparetto EL, Maiolino A, Alves-Leon SV, Andre C, Mendez-Otero R, Rodrig Tags: Regen Med Source Type: research
ApoA-1 Mimetic Peptides Promoting Lipid Efflux from Cells for Treatment of Vascular Disorders
This invention involves ApoA-1 mimetic peptides with multiple amphipathic alpha-helical domains that promote lipid efflux from cells and are useful in the treatment and prevention of dyslipidemic, inflammatory and vascular disorders. IND-enabling studies for one of the peptides, named Fx-5A, are completed in preparation for an IND filing at the FDA, to be followed by a Phase I clinical trial planned for 2017. Disorders amenable to treatment with the peptides include hyperlipidemia, hyperlipoproteinemia, hypercholesterolemia, HDL deficiency, hypertriglyceridemia, apoA-I deficiency, acute coronary syndrome, angina pectoris, ...
Source: NIH OTT Licensing Opportunities - February 1, 2008 Category: Research Authors: ajoyprabhu3 Source Type: research
