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Mechanical Circulatory Support

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https://www.readbyqxmd.com/read/28643428/mechanical-circulatory-support-in-the-treatment-of-advanced-heart-failure
#1
Amanda W Cai, Sabrina Islam, Shelley R Hankins, Wade Fischer, Howard J Eisen
According to the Centers for Disease Control (CDC), heart failure (HF) remains a pervasive condition with high morbidity and mortality, affecting 5.8 million people in the United States (US) and 23 million worldwide. For patients with refractory end-stage HF, heart transplantation is the gold standard for definitive treatment. However, the demand for heart transplantation has consistently exceeded the availability of donor hearts, with approximately 2,331 orthotopic heart transplantations performed in the US in 2015 despite an estimated 100,000 to 250,000 patients with New York Heart Association (NYHA) class IIIB or IV symptoms that are refractory to medical treatment and potential transplant candidates...
June 22, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28642001/regarding-mechanical-circulatory-support-in-adults-with-congenital-heart-disease-is-it-time-to-lower-the-threshold-for-use
#2
EDITORIAL
Roosevelt Bryant, David L S Morales
No abstract text is available yet for this article.
May 29, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28633205/advancing-the-science-of-myocardial-recovery-with-mechanical-circulatory-support-a-working-group-of-the-national-heart-lung-and-blood-institute
#3
EDITORIAL
Stavros G Drakos, Francis D Pagani, Martha S Lundberg, Timothy J Baldwin
The medical burden of heart failure (HF) has spurred interest in clinicians and scientists to develop therapies to restore the function of a failing heart. To advance this agenda, the National Heart, Lung, and Blood Institute (NHLBI) convened a Working Group of experts from June 2 to 3, 2016, in Bethesda, Maryland, to develop NHLBI recommendations aimed at advancing the science of cardiac recovery in the setting of mechanical circulatory support (MCS). MCS devices effectively reduce volume and pressure overload that drives the cycle of progressive myocardial dysfunction, thereby triggering structural and functional reverse remodeling...
July 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28621838/the-effect-of-compliant-inflow-cannulae-on-the-hemocompatibility-of-rotary-blood-pump-circuits-in-an-in-vitro-model
#4
Jo P Pauls, Deepika Nandakumar, Jarod Horobin, Justin D Prendeville, Michael J Simmonds, John F Fraser, Geoff Tansley, Shaun D Gregory
Rotary blood pumps (RBPs) are used for mechanical circulatory support in heart failure patients but exhibit a reduced response to preload changes, which can lead to ventricular suction events. A passive control system, in the form of a compliant inflow cannula (IC), has been developed to mitigate suction, although this device may cause significant hemolysis. This study compared the incidence of mechanically induced hemolysis of two compliant IC designs (strutted and nonstrutted) with a rigid IC (control) in a blood circulation loop over 90 min...
June 16, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28616781/impact-of-hyperglycemia-on-cystathionine-%C3%AE-lyase-expression-during-resuscitated-murine-septic-shock
#5
Tamara Merz, Josef A Vogt, Ulrich Wachter, Enrico Calzia, Csaba Szabo, Rui Wang, Peter Radermacher, Oscar McCook
BACKGROUND: Cystathionine-γ-lyase (CSE) was shown to have a regulatory role in glucose metabolism. Circulatory shock can induce metabolic stress, thereby leading to hyperglycemia and mitochondrial dysfunction. In vitro data suggest an effect of high glucose on CSE expression. Therefore, the aim of this study was to investigate the effects of hyperglycemia on CSE expression in resuscitated murine septic shock. METHODS: Normo- (80-150 mg/dl) and hyperglycemic (>200 mg/dl) male C57/BL6J mice (n = 5-6 per group) underwent cecal ligation and puncture (CLP)-induced polymicrobial sepsis or sham procedure (n = 6 per group) and, 15 h afterwards, were anesthetized again, surgically instrumented and received intensive care treatment, including antibiotics, lung protective mechanical ventilation, circulatory support, and intravenous (i...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28602210/renal-allograft-outcome-after-simultaneous-heart-and-kidney-transplantation
#6
Avishay Grupper, Ayelet Grupper, Richard C Daly, Naveen L Pereira, Matthew A Hathcock, Walter K Kremers, Fernando G Cosio, Brooks S Edwards, Sudhir S Kushwaha
Chronic kidney disease frequently accompanies end-stage heart failure and may result in consideration of simultaneous heart and kidney transplantation (SHKT). In recent years, there has been a significant increase in SHKT. This single-center cohort consisted of 35 patients who underwent SHKT during 1996 to 2015. The aim of this study was to review factors that may predict better long-term outcome after SKHT. Thirteen patients (37%) had delayed graft function (DGF) after transplant (defined as the need for dialysis during the first 7 days after transplant), which was significantly associated with mechanical circulatory support device therapy and high right ventricular systolic pressure before transplant...
May 11, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28600099/integrating-interventional-cardiology-and-heart-failure-management-for-cardiogenic-shock
#7
REVIEW
Navin K Kapur, Carlos D Davila, Marwan F Jumean
Cardiogenic shock remains one of the most common causes of in-hospital death. Recent data have identified an overall increase in patient complexity, with cardiogenic shock in the setting of acute myocardial infarction. The use of percutaneous acute mechanical circulatory support (AMCS) has steadily grown in the past decade. Guidelines and consensus statements addressing proper patient selection, timing of AMCS implantation, device choice, and postimplantation protocol are appearing. The emerging role of interventional heart failure specialists within the heart team includes integration and understanding of advanced hemodynamic and cathether-based therapies, with the goal of improving outcomes...
July 2017: Interventional cardiology clinics
https://www.readbyqxmd.com/read/28600092/mechanical-circulatory-support-in-acute-decompensated-heart-failure-and-shock
#8
REVIEW
Nishtha Sodhi, John M Lasala
An array of interventional therapeutics is available in the modern era, with uses depending on acute or chronic situations. This article focuses on support in acute decompensated heart failure and cardiogenic shock, including intra-aortic balloon pumps, continuous aortic flow augmentation, and extra-corporeal membrane oxygenation.
July 2017: Interventional cardiology clinics
https://www.readbyqxmd.com/read/28597481/peripartum-cardiomyopathy-in-denmark-a-retrospective-population-based-study-of-incidence-management-and-outcome
#9
Anne S Ersbøll, Marianne Johansen, Peter Damm, Steen Rasmussen, Niels G Vejlstrup, Finn Gustafsson
AIM: Population-based European studies of peripartum cardiomyopathy (PPCM) are few. We aimed to estimate the nationwide incidence and outcome of PPCM in Denmark during 2005-2014. METHODS AND RESULTS: The Danish National Birth Register and the Danish National Patient Register were linked and searched for cardiomyopathy and heart failure ICD-10 diagnoses in a period of nine months before to 12 months after a delivery from 1 January 2005 through 31 December 2014. Diagnoses were validated and additional data were extracted from patient charts...
June 8, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28586149/comparative-analysis-of-von-willebrand-factor-profiles-after-implantation-of-left-ventricular-assist-device-and-total-artificial-heart
#10
H J Reich, J Morgan, F Arabia, L Czer, J Moriguchi, D Ramzy, F Esmailian, L Lam, J Dunhill, O Volod
BACKGROUND: Bleeding remains a challenge during mechanical circulatory support and underlying mechanisms are incompletely understood. Functional von Willebrand Factor (VWF) impairment due to loss of high molecular weight multimers (MWM) produces acquired von Willebrand Disease (VWD) after left ventricular assist device (LVAD). Little is known about VWF multimers with total artificial hearts (TAHs). Here, VWF profiles with LVADs and TAHs are compared using a VWD panel. METHODS: VWD evaluations for patients with LVAD or TAH (2013-14) were retrospectively analyzed and included: VWF activity (Ristocetin Cofactor, VWF:RCo), VWF antigen (VWF:Ag), ratio of VWF:RCo to VWF:Ag, and quantitative VWF multimeric analysis...
June 6, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28583372/dose-dependent-association-between-amiodarone-and-severe-primary-graft-dysfunction-in-orthotopic-heart-transplantation
#11
Matthew Wright, Koji Takeda, Christine Mauro, Douglas Jennings, Paul Kurlansky, Jiho Han, Lauren Truby, Samantha Stein, Veli Topkara, Arthur R Garan, Melana Yuzefpolskaya, Paolo Colombo, Yoshifumi Naka, Maryjane Farr, Hiroo Takayama
BACKGROUND: There is growing concern regarding the association between pre-transplant amiodarone exposure and post-transplant adverse outcomes. We hypothesized that amiodarone use would be associated with the development of severe primary graft dysfunction (PGD) in a dose-dependent manner. METHODS: This was a retrospective review of 269 adult orthotopic heart transplantation (OHT) recipients at our institution between 2010 and 2014. At the time of OHT, 100 were receiving amiodarone therapy (Group 1) and 169 were not (Group 2)...
May 20, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28582002/controversies-and-challenges-in-the-management-of-st-elevation-myocardial-infarction-complicated-by-cardiogenic-shock
#12
REVIEW
Byung-Soo Ko, Stavros G Drakos, Frederick G P Welt, Rashmee U Shah
The prognosis in ST-elevation myocardial infarction has improved with coronary care units, revascularization, and anticoagulant strategies; however, cardiogenic shock (CS) remains a highly fatal condition. Controversies remain about optimal pharmacologic therapies, revascularization strategies, the role of mechanical circulatory support (MCS), and evidence-based patient selection. The current informed consent paradigm for clinical trials creates challenges testing treatments in CS patients, who are too ill to consent and require immediate treatment...
October 2016: Interventional cardiology clinics
https://www.readbyqxmd.com/read/28580136/acute-mechanical-circulatory-support-for-cardiogenic-shock-the-door-to-support-time
#13
REVIEW
Michele L Esposito, Navin K Kapur
Cardiogenic shock (CS) remains a major cause of in-hospital mortality in the setting of acute myocardial infarction. CS begins as a hemodynamic problem with impaired cardiac output leading to reduced systemic perfusion, increased residual volume within the left and right ventricles, and increased cardiac filling pressures. A critical step towards the development of future algorithms is a clear understanding of the treatment objectives for CS. In this review, we introduce the "door to support" time as an emerging target of therapy to improve outcomes associated with CS, define four key treatment objectives in the management of CS, discuss the importance of early hemodynamic assessment and appropriate selection of acute mechanical circulatory support (AMCS) devices for CS, and introduce a classification scheme that identifies subtypes of CS based on cardiac filling pressures...
2017: F1000Research
https://www.readbyqxmd.com/read/28576783/survival-and-left-ventricular-function-changes-in-fulminant-versus-non-fulminant-acute-myocarditis
#14
Enrico Ammirati, Manlio Cipriani, Marzia Lilliu, Paola Sormani, Marisa Varrenti, Claudia Raineri, Duccio Petrella, Andrea Garascia, Patrizia Pedrotti, Alberto Roghi, Edgardo Bonacina, Antonella Moreo, Maurizio Bottiroli, Maria P Gagliardone, Michele G Mondino, Stefano Ghio, Rossana Totaro, Fabio M Turazza, Claudio F Russo, Fabrizio Oliva, Paolo G Camici, Maria Frigerio
Background -Previous reports have suggested that despite their dramatic presentation, patients with fulminant myocarditis (FM) might have better outcome than those with acute non-fulminant myocarditis (NFM). In this retrospective study, we report outcome and changes in left ventricular ejection fraction (LVEF) in a large cohort of patients with FM compared with NFM. Methods -The study population consists of 187 consecutive patients admitted between May 2001 and November 2016 with a diagnosis of acute myocarditis (onset of symptoms <1 month) of whom 55 required inotropes and/or mechanical circulatory support (FM) whilst the remaining 132 patients were hemodynamically stable (NFM)...
June 2, 2017: Circulation
https://www.readbyqxmd.com/read/28575211/clinical-outcomes-in-patients-after-extracorporeal-membrane-oxygenation-support-for-post-cardiotomy-cardiogenic-shock-a-single-centre-experience-of-92-cases%C3%A2
#15
Julien Guihaire, Simon Dang Van, Simon Rouze, Sébastien Rosier, Antoine Roisne, Thierry Langanay, Hervé Corbineau, Jean-Philippe Verhoye, Erwan Flécher
OBJECTIVES: Post-cardiotomy cardiogenic shock is a major concern in cardiac surgery. We reviewed our experience of extracorporeal membrane oxygenation (ECMO) as temporary circulatory support in post-cardiotomy cardiogenic shock. METHODS: Between January 2005 and December 2014, adult patients implanted with ECMO after cardiac surgical procedures were included. Indications for ECMO were failure to be withdrawn from cardiopulmonary bypass or refractory cardiogenic shock occurring during postoperative Days 1 and 2...
June 1, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28572613/mesenchymal-stem-cells-correct-haemodynamic-dysfunction-associated-with-liver-injury-after-extended-resection-in-a-pig-model
#16
Hans-Michael Tautenhahn, Sandra Brückner, Christiane Uder, Silvio Erler, Madlen Hempel, Martin von Bergen, Janine Brach, Sandra Winkler, Franziska Pankow, Claudia Gittel, Manja Baunack, Undine Lange, Johannes Broschewitz, Matthias Dollinger, Michael Bartels, Uta Pietsch, Kerstin Amann, Bruno Christ
In patients, acute kidney injury (AKI) is often due to haemodynamic impairment associated with hepatic decompensation following extended liver surgery. Mesenchymal stem cells (MSCs) supported tissue protection in a variety of acute and chronic diseases, and might hence ameliorate AKI induced by extended liver resection. Here, 70% liver resection was performed in male pigs. MSCs were infused through a central venous catheter and haemodynamic parameters as well as markers of acute kidney damage were monitored under intensive care conditions for 24 h post-surgery...
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28567581/temporary-biventricular-support-with-extracorporeal-membrane-oxygenation-a-feasible-therapeutic-approach-for-cardiogenic-shock-with-multiple-organ-failure
#17
Osamu Seguchi, Tomoyuki Fujita, Takuya Watanabe, Kensuke Kuroda, Eriko Hisamatsu, Seiko Nakajima, Takuma Sato, Haruki Sunami, Masanobu Yanase, Hiroki Hata, Junjiro Kobayashi, Takeshi Nakatani, Norihide Fukushima
Various strategies using a ventricular assist device (VAD) are applied to rescue Interagency Registry for Mechanically Assisted Circulatory Support profile 1 (Profile-1) patients. However, the optimal use of VAD in Profile-1 patients has not been completely elucidated. We retrospectively reviewed 23 Profile-1 patients [mean age 36.9 ± 16.6 years, 14 males; 11 with non-ischemic cardiomyopathy (NICM), 9 with fulminant myocarditis (FM), 2 with ischemic cardiomyopathy (ICM), and 1 with peripartum cardiomyopathy (PPCM); 18 with pre-operative percutaneous extracorporeal membrane oxygenation (p-ECMO) support] who underwent VAD implantation from 2011 to 2015 at our institution...
May 31, 2017: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/28559233/recommendations-for-the-use-of-mechanical-circulatory-support-ambulatory-and-community-patient-care-a-scientific-statement-from-the-american-heart-association
#18
REVIEW
Jennifer L Cook, Monica Colvin, Gary S Francis, Kathleen L Grady, Timothy M Hoffman, Mariell Jessup, Ranjit John, Michael S Kiernan, Judith E Mitchell, Francis D Pagani, Michael Petty, Pasala Ravichandran, Joseph G Rogers, Marc J Semigran, J Matthew Toole
No abstract text is available yet for this article.
June 20, 2017: Circulation
https://www.readbyqxmd.com/read/28557861/heartmate-3-in-lowest-intermacs-profile-cohort-the-swiss-experience
#19
Piergiorgio Tozzi, Carlo Banfi, Kameran Ahmadov, Roger Hullin, Philippe Meyer, Raphael Giraud, Lucas Liaudet, Fabrizio Gronchi, Christophe Huber, Matthias Kirsch
New generation devices for long-term mechanical circulatory support are centrifugal pumps having fully magnetically levitated rotors to reduce blood trauma. Recently, the novel HeartMate 3 was cleared for clinical application in Switzerland. In two Swiss University Hospitals part of the "Lausanne-Geneva Transplantation Network," 10 consecutive patients in end-stage heart failure received the HeartMate 3. Device implantation criteria were persistent low output syndrome despite optimal medical treatment. The primary end-point of the study was survival or transplantation to 90 days on the device...
May 23, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28554673/secondary-sclerosing-cholangitis-in-cardiac-surgical-patients-a-complication-with-a-dismal-prognosis
#20
Ina Schade, Dejan Radakovic, Jörg Hoffmann, Sebastian-Patrick Sommer, Ullrich Stefenelli, Christoph Schimmer, Rainer G Leyh, Ivan Aleksic
OBJECTIVES: Secondary sclerosing cholangitis in critically ill patients is a rapidly progressing disease leading to biliary fibrosis and cirrhosis. We describe the course of sclerosing cholangitis in critically ill patients after cardiac surgery and compare this with matched patients. METHODS: A retrospective search for "secondary sclerosing cholangitis" and "liver and/or hepatic failure" in all adult patients (aged 18-93 years) who underwent cardiac surgery from April 2007 to March 2016 identified 192 of 8625 patients...
April 27, 2017: Journal of Thoracic and Cardiovascular Surgery
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