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Specialty: Transplant Surgery
Condition: Bleeding

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Total 68 results found since Jan 2013.

Efficacy of Prophylactic Intra‐Aortic Balloon Pump Therapy in Chronic Heart Failure Patients Undergoing Cardiac Surgery
This study investigated the efficacy of prophylactic intraoperative intra‐aortic balloon pump (IABP) usage in chronic heart failure patients with severely reduced left ventricular function undergoing elective cardiac surgery. Between January 2008 and December 2012, 107 patients with severely reduced left ventricular ejection fraction (LVEF <35%) received prophylactic intraoperative IABP implantation during open‐heart surgery. Surgical procedures performed were isolated coronary artery bypass grafting (CABG) in 35 patients (32.7%), aortic valve replacement in 12 (11.2%), mitral valve repair or replacement in 15 (14.0...
Source: Artificial Organs - February 1, 2014 Category: Transplant Surgery Authors: Yalin Yildirim, Simon Pecha, Mathias Kubik, Yousuf Alassar, Tobias Deuse, Samer Hakmi, Hermann Reichenspurner Tags: Thoughts and Progress Source Type: research

Association between cell-derived microparticles and adverse events in patients with nonpulsatile left ventricular assist devices
Background: Continuous-flow left ventricular assist devices (LVADs) expose blood cells to high shear stress, potentially resulting in the production of microparticles that express phosphatidylserine (PS+) and promote coagulation and inflammation. In this prospective study, we attempted to determine whether PS+ microparticle levels correlate with clinical outcomes in LVAD-supported patients.Methods: We enrolled 20 patients undergoing implantation of the HeartMate II LVAD (Thoratec Corp, Pleasanton, CA) and 10 healthy controls who provided reference values for the microparticle assays. Plasma was collected before LVAD implan...
Source: The Journal of Heart and Lung Transplantation - January 21, 2014 Category: Transplant Surgery Authors: Angelo Nascimbene, Ruben Hernandez, Joggy K. George, Anita Parker, Angela L. Bergeron, Subhashree Pradhan, K. Vinod Vijayan, Andrew Civitello, Leo Simpson, Maria Nawrot, Vei-Vei Lee, Hari R. Mallidi, Reynolds M. Delgado, Jing Fei Dong, O.H. Frazier Tags: Featured Articles Source Type: research

Extracorporeal Membrane Oxygenation: Experience In Acute Graft Failure After Heart Transplantation
ConclusionTemporary ECMO support for postoperative output failure is an acceptable option as a last resort for otherwise doomed patients with fatal graft failure after HTx. The small fraction of patients surviving, appear to have a decent long‐term prognosis.This article is protected by copyright. All rights reserved.
Source: Clinical Transplantation - April 1, 2014 Category: Transplant Surgery Authors: Sven Lehmann, Madlen Uhlemann, Christian D. Etz, Jens Garbade, Thomas Schroeder, Michael Borger, Martin Misfeld, Hartmuth B Bittner, Friedrich Wilhelm Mohr Tags: Original Article 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

Mid-term results of 17-mm St. Jude Medical Regent prosthetic valves in elder patients with small aortic annuli: comparison with 19-mm bioprosthetic valves
This study was designed to compare the mid-term outcomes after aortic valve replacement (AVR) between 17-mm mechanical heart valves (MV) and 19-mm bioprosthetic valves (BV) in elderly patients with small aortic annuli. Between 2000 and 2011, 127 consecutive patients (mean age 79 years; 87 % female) underwent AVR for aortic valve stenosis with a small aortic annulus. 19-mm BV (n = 67) was implanted. When the 19-mm BV did not fit the annulus, 17-mm St. Jude Medical Regent prosthetic mechanical valve (n = 60) was used instead of an aortic root-enlargement procedure. The follow-up rate was 94.0 % in the BV group, and 98...
Source: Journal of Artificial Organs - September 1, 2014 Category: Transplant Surgery Source Type: research

First Implantation in Man of a New Magnetically Levitated Left Ventricular Assist Device (HeartMate III)
Outcomes of heart failure patients supported by a continuous flow left ventricular assist device (LVAD) have steadily improved over the past decade due in large part to better patient selection and management 1,2. Nevertheless, adverse events such as bleeding, infection, stroke and thrombus persist and limit the overall effectiveness of this therapy. Bleeding is the most common serious adverse event that results from the extensive surgery required for implantation and blood component damage due to shear forces in the small blood flow paths of current design axial-flow and centrifugal-flow pumps.
Source: The Journal of Heart and Lung Transplantation - March 7, 2015 Category: Transplant Surgery Authors: Jan D. Schmitto, Jasmin S. Hanke, Sebastian V. Rojas, Murat Avsar, Axel Haverich Source Type: research

Temporal Distribution of Hematologic Complications During Berlin EXCOR Support
The Berlin Heart EXCOR trial demonstrated a high incidence of bleeding complications and stroke. Little is known, however, with regards to the timing of these events. The purpose of this study is to describe a single center experience with the Berlin EXCOR VAD, with a particular focus on the temporal distribution of these mutually related complications.
Source: The Journal of Heart and Lung Transplantation - April 1, 2015 Category: Transplant Surgery Authors: S. Burki, D.H. Mahoney, A. Jeewa, W. Zhang, E. McKenzie, D.L. Morales, C.M. Mery, J.S. Heinle, C.D. Fraser, I. Adachi Source Type: research

Temporal Differences in Adverse Event Rates in Patients Bridged With the HeartWare Left Ventricular Assist Device
Left ventricular assist devices (LVAD) have significantly improved survival and quality of life in patients with advanced heart failure. However, these devices are associated with significant adverse events (AEs), particularly bleeding, infection, stroke and right heart failure. We sought to evaluate temporal differences in AE rates in patients bridged to transplantation.
Source: The Journal of Heart and Lung Transplantation - April 1, 2015 Category: Transplant Surgery Authors: S. Maltais, K.D. Aaronson, J.J. Teuteberg, M.S. Slaughter, S.S. Najjar, V. Jeevanandam, D.T. Pham, E.C. McGee, K. Najarian, R.L. Kormos Source Type: research

Low incidence of gastrointestinal bleeding and pump thrombosis in patients receiving the INCOR LVAD system in the long-term follow-up.
CONCLUSIONS: In this cohort of high-risk, advanced HF patients, the INCOR LVAD provided effective support with improved survival. Moreover, the absence of GI bleeding and pump thrombosis demonstrates a favorable characteristic of this device. Further prospective studies are needed to confirm these data. PMID: 26541278 [PubMed - as supplied by publisher]
Source: The International Journal of Artificial Organs - October 28, 2015 Category: Transplant Surgery Authors: Iacovoni A, Centofanti P, Attisani M, Verde A, Terzi A, Senni M, Maiani M, Baronetto A, Livi U, Frigerio M, Rinaldi M Tags: Int J Artif Organs Source Type: research

Increased Frequency of Bleeding Complications in Females Following LVAD Implant
While females are at increased risk for stroke after left ventricular assist device (LVAD), the impact of sex on mortality has been met with conflicting results and there is few data on sex specific bleeding rates. Bleeding is a major source of morbidity and mortality in the LVAD population. The aim of this analysis is to define the incidence and clinical impact of bleeding stratified by sex.
Source: The Journal of Heart and Lung Transplantation - March 25, 2017 Category: Transplant Surgery Authors: Z. Yavar, J. Cowger, S. Moainie, C. Salerno, A.K. Ravichandran Source Type: research

Outcomes of Asian-Americans Undergoing Left Ventricular Assist Device Implantations as a Bridge to Transplant or Destination Therapy: An INTERMACS Analysis
Previous studies have demonstrated significant differences between Asians and Caucasian white populations in their propensity for stroke, coronary artery disease, heart failure, inflammation, bleeding and thrombosis. Therefore, we hypothesized that Asian Americans with end stage heart failure undergoing treatment with durable left ventricular assist devices (LVAD) exhibit a different morbidity and mortality risk profile when compared to non-Asian and white Americans populations.
Source: The Journal of Heart and Lung Transplantation - March 25, 2017 Category: Transplant Surgery Authors: J.R. Wever Pinzon, W. Wang, N. Hu, R. Larsen, T. Yu, L. Yin, I. Taleb, A. Koliopoulou, S. Mckellar, J. Stehlik, J. Fang, A. Kfoury, C. Selzman, S. Drakos Source Type: research

Managing Anticoagulation in LVAD Patients: The Harefield Experience
Anticoagulation management in patients with Left Ventricular Assist devices (LVAD) continues to be a challenge. Patients and their clinicians are faced with the daily challenge of needing adequate anticoagulation versus the bleeding risks that are associated with anticoagulation.Warfarin is the recommended oral anticoagulant for all currently available LVAD devices.Warfarin is known to be a difficult medication to manage due to its narrow therapeutic window, and its many interactions .Dlott et al (2014) describe in Circulation the overall time in therapeutic range for patients on warfarin as 53.7%, Time in therapeutic rang...
Source: The Journal of Heart and Lung Transplantation - March 25, 2017 Category: Transplant Surgery Authors: R. Hards, G. Edwards, C. Kavanagh, M. Hedger, A.R. Simon Source Type: research

Long-term follow-up of continuous flow left ventricular assist devices: complications and predisposing risk factors.
CONCLUSIONS: LVADs are associated with significant long-term complications including stroke and sepsis and minimizing time on LVADs may decrease the risk of complications and subsequent morbidity and mortality. PMID: 28777392 [PubMed - as supplied by publisher]
Source: The International Journal of Artificial Organs - August 2, 2017 Category: Transplant Surgery Authors: Adesiyun TA, McLean RC, Tedford RJ, Whitman GJR, Sciortino CM, Conte JV, Shah AS, Russell SD Tags: Int J Artif Organs Source Type: research

Outcomes of Berlin Heart EXCOR ® pediatric ventricular assist device support in patients with restrictive and hypertrophic cardiomyopathy
This study reviews the North American experience with Berlin Heart EXCOR® ventricular assist device implants in children with such physiology. The Berlin Heart clinical database was reviewed. Patients with primary diastolic dysfunction are included in this study. Twenty pediatric patients with restrictive cardiomyopathy (n = 13), hypertrophic cardiomyopathy (n = 3), or congenital heart disease with restrictive physiology (n = 4) who were supported with EXCOR® were identified. Of these, nine (45%) were successfully bridged to transplant, one (5%) weaned from support, and 10 (50%) died after support was withdrawn. Of...
Source: Pediatric Transplantation - September 1, 2017 Category: Transplant Surgery Authors: Jennifer A. Su, Jondavid Menteer Tags: ORIGINAL ARTICLE Source Type: research

Type II Minimal ‐Invasive Extracorporeal Circuit for Aortic Valve Replacement: A Randomized Controlled Trial
Abstract Extracorporeal circulation triggers systemic inflammatory response and coagulation disorders which may lead to unfavorable clinical outcome. A type II minimally‐invasive extracorporeal circuit (MiECC) is a closed system with markedly reduced artificial surface as compared to conventional extracorporeal circuits (CECC). The aim of this study was to investigate and compare inflammatory responses, complement activation and selected clinical end‐points in isolated surgical aortic valve replacement (SAVR) performed with a type II MiECC circuit or a CECC. Fifty patients were prospectively randomized to MiECC or CECC...
Source: Artificial Organs - February 12, 2018 Category: Transplant Surgery Authors: Erich Gygax, Hans ‐Ulrich Kaeser, Mario Stalder, Brigitta Gahl, Robert Rieben, Thierry Carrel, Gabor Erdoes Tags: Main Text Source Type: research