keyword
MENU ▼
Read by QxMD icon Read
search

left ventricular assist device

keyword
https://www.readbyqxmd.com/read/29775554/outcomes-and-predictors-of-early-infection-after-heart-transplantation
#1
Kendall C Shultes, Jerrica E Shuster, Scott Micek, Justin M Vader, Keki Balsara, Akinobu Itoh, Bethany R Tellor
BACKGROUND: Limited data exist on the incidence and outcome of early infection after orthotopic heart transplantation (OHT). The purpose of this study was to describe characteristics and outcomes of OHT recipients with an early infection and to identify predictors of such infections. METHODS: This retrospective, single-center study included patients greater than 18 years of age who underwent OHT from February 2009 to May 2014 and had an infection within 30 days of transplantation...
May 18, 2018: Surgical Infections
https://www.readbyqxmd.com/read/29774592/risk-factors-for-stroke-on-left-ventricular-assist-devices
#2
Muath Bishawi, Jeremy Joseph, Chetan Patel, Jacob Schroder, Mani Daneshmand, Dawn Bowles, Joseph Rogers, Carmelo Milano
BACKGROUND: Patients with end-stage heart failure on left ventricular assist devices (LVADs) are predisposed to a high incidence of stroke. Preoperative factors associated with increased stroke risk are poorly understood. METHODS: We performed a single-center retrospective review of all patients from 2009 to 2014 in whom a rotary flow LVAD was implanted. All patients with symptoms of a cerebrovascular event underwent a non-contrast head computed tomography scan...
May 17, 2018: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/29774558/clinical-outcome-and-comparison-of-three-different-left-ventricular-assist-devices-in-a-high-risk-cohort
#3
Konstantin Zhigalov, Ahmed Mashhour, Marcin Szczechowicz, Sabreen Mkalaluh, Sergei Karagezian, Irakli Gogia, Maxim Isaev, Bakitbek K Kadyraliev, Jerry Easo, Juergen Ennker, Harald C Eichstaedt, Alexander Weymann
We present a comparison between three left ventricular assist devices (LVADs): HeartWare (HVAD) (HeartWare International Inc., Framingham, MA, USA), HeartMate II (HMII) and HeartMate III (HMIII) (Thoratec Corp., Pleasanton, CA, USA). To our knowledge, no study to date has aimed at placing these three devices in juxtaposition. Between June 2007 and June 2017, 108 consecutive patients received HMII, n = 77 (71.3%), HVAD, n = 14 (13%), or HM III, n = 17 (15.7%), for end-stage heart failure. Mean age was 63...
May 17, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29773577/determinants-and-outcomes-of-vasoplegia-following-left-ventricular-assist-device-implantation
#4
Kristen M Tecson, Brian Lima, Andy Y Lee, Fayez S Raza, Grace Ching, Cheng-Han Lee, Joost Felius, Ronald D Baxter, Sasha Still, Justin D G Collier, Shelley A Hall, Susan M Joseph
BACKGROUND: Vasoplegia is associated with adverse outcomes following cardiac surgery; however, its impact following left ventricular assist device implantation is largely unexplored. METHODS AND RESULTS: In 252 consecutive patients receiving a left ventricular assist device, vasoplegia was defined as the occurrence of normal cardiac function and index but with the need for intravenous vasopressors within 48 hours following surgery for >24 hours to maintain a mean arterial pressure >70 mm Hg...
May 17, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29769417/lactate-in-cardiogenic-shock-current-understanding-and-clinical-implications
#5
G M Kubiak, A R Tomasik, K Bartus, R Olszanecki, P Ceranowicz
Adenosine triphosphate (ATP) is an essential substrate metabolite in human beings. Mitochondrial oxidative phosphorylation provides > 95% of ATP with the remainder derived from glycolysis or tricarboxylic acid cycle (TCA). In normal hearts, acetyl-CoA is synthesized from the β-oxidation of free fatty acids (FFA) and the oxidation of pyruvate. Pyruvate is synthesized from glycolysis and can be submitted either for decarboxylation to acetyl-CoA or for dehydrogenation to lactate. Moreover, pyruvate, as well as lactate, plays a key role in aerobic glucose metabolism which is highly dependent on ubiquitous regulatory mechanisms...
February 2018: Journal of Physiology and Pharmacology: An Official Journal of the Polish Physiological Society
https://www.readbyqxmd.com/read/29768282/baseline-thromboelastogram-as-a-predictor-of-left-ventricular-assist-device-thrombosis
#6
Shannon L Piche, Scott D Nei, Erin Frazee, Sarah D Schettle, Barry A Boilson, Matthew F Plevak, Ross A Dierkhising, John M Stulak
Left ventricular assist device (LVAD) pump thrombosis occurs in up to 8.4% of patients within 3-months postimplantation. Thromboelastography (TEG) could be used to signal hypercoagulability at LVAD implantation to predict patients at high risk for thrombosis. We sought to evaluate whether TEG maximum amplitude (MA) hypercoagulability (MA ≥69 mm) at the time of LVAD implantation predicts pump thrombosis. A single center, retrospective, nested case-control study was conducted using patients from January 1, 2005, to March 31, 2015...
May 15, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29766321/acute-kidney-injury-after-implantation-of-a-left-ventricular-assist-device-a-comparison-of-axial-flow-heartmate-ii-and-centrifugal-flow-heartware-hvad-devices
#7
Azeen Anjum, Chitaru Kurihara, Andre Critsinelis, Masashi Kawabori, Tadahisa Sugiura, Andrew B Civitello, Whitson B Etheridge, Reynolds M Delgado, Leo Simpson, Joggy K George, Ajith P Nair, O H Frazier, Jeffrey A Morgan
Continuous-flow left ventricular assist devices (CF-LVADs) are increasingly being used to treat advanced, refractory chronic heart failure. Herein, we sought to determine the incidence of postoperative acute kidney injury (AKI) in axial-flow (HeartMate II; HM-II) and centrifugal-flow (HVAD) CF-LVAD recipients, as well as the effect of AKI on mortality. The study cohort comprised 520 patients who received a HM-II (n = 398) or HVAD (n = 122) at our center between November 2003 and March 2016. Their records were reviewed to determine the incidence of RIFLE-defined AKI after LVAD implantation...
May 15, 2018: Journal of Artificial Organs: the Official Journal of the Japanese Society for Artificial Organs
https://www.readbyqxmd.com/read/29764969/cardiovascular-phenotype-and-prognosis-of-patients-with-heart-failure-induced-by-cancer-therapy
#8
Wilson Nadruz, Erin West, Morten Sengeløv, Gabriela L Grove, Mário Santos, John D Groarke, Daniel E Forman, Brian Claggett, Hicham Skali, Anju Nohria, Amil M Shah
OBJECTIVE: This study compared the clinical features, cardiac structure and function evaluated by echocardiography, cardiopulmonary response to exercise and long-term clinical outcomes between patients with heart failure (HF) induced by cancer therapy (CTHF) and heart failure not induced by cancer therapy (NCTHF). METHODS: We evaluated 75 patients with CTHF and 894 with NCTHF who underwent clinically indicated cardiopulmonary exercise testing, and followed these individuals for a median of 4...
May 15, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29762934/rescue-tavi-for-aortic-regurgitation-after-left-ventricular-assist-device-implantation-following-preoperative-impella%C3%A2-support
#9
Florian E M Herrmann, Petra Wellmann, Vera von Dossow, Steffen Massberg, Christian Hagl, René Schramm, Maximilian Pichlmaier
A patient presented with a decompensated cardiomyopathy requiring invasive hemodynamic support with an Impella® heart pump. Extracorporeal life support (ECLS) became necessary during the further course and the patient was bridged to left ventricular assist device (LVAD) implantation. Postoperatively, the patient did not improve as expected due to new aortic regurgitation (AR) that was most likely caused by the previously placed Impella. A SAPIEN 3 transcatheter aortic valve was implanted as a bail-out strategy; an additional valve-in-valve rescue was required due to paravalvular regurgitation...
September 2017: Journal of Heart Valve Disease
https://www.readbyqxmd.com/read/29762230/outcomes-after-infections-in-adolescents-and-young-adults-with-continuous-flow-left-ventricular-assist-devices
#10
Sharon Chen, Ryan S Cantor, Scott Auerbach, Kurt Schumacher, Christopher S Almond, Pirooz Eghtesady, Juan Alejos, Bibhuti B Das, Borah J Hong, Robert Jaquiss, James K Kirklin, Aamir Jeewa
Infections in adult ventricular assist device patients increase subsequent mortality and stroke risk. Less is known about outcomes after infections in younger patients, where diabetes and obesity, risk factors associated with poor outcomes, are less prevalent. The purpose of this study was to examine outcomes after infections in adolescents and young adults with continuous-flow left ventricular assist devices (VAD) bridged to transplant. From Pediatric Interagency Registry for Mechanically Assisted Circulatory Support and Interagency Registry for Mechanical Circulatory Support registries, we identified patients aged 12-29 years with continuous-flow VADs implanted as bridged to transplant from September 2012 to March 2016...
May 11, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29761962/-study-on-regurgitation-using-the-coupling-model-of-left-ventricular-assist-device-and-cardiovascular-system
#11
Fangqun Wang, Zhenhai Wu, Teng Jing, Qing Xu, Jinhao Yao, Jinghua Ji
Regurgitation is an abnormal condition happens when left ventricular assist devices (LVADs) operated at a low speed, which causes LVAD to fail to assist natural blood-pumping by heart and thus affects patients' health. According to the degree of regurgitation, three LVAD's regurgitation states were identified in this paper: no regurgitation, slight regurgitation and severe regurgitation. Regurgitation index ( RI ), which is presented based on the theory of dynamic closed cavity, is used to grade the regurgitation of LVAD...
October 1, 2017: Sheng Wu Yi Xue Gong Cheng Xue za Zhi, Journal of Biomedical Engineering, Shengwu Yixue Gongchengxue Zazhi
https://www.readbyqxmd.com/read/29759835/hemodynamic-support-in-ventricular-tachycardia-ablation-an-international-vt-ablation-center-collaborative-group-study
#12
Mohit K Turagam, Venkat Vuddanda, Donita Atkins, Pasquale Santangeli, David S Frankel, Roderick Tung, Marmar Vaseghi, William H Sauer, Wendy Tzou, Nilesh Mathuria, Shiro Nakahara, Timm M Dickfeld, T Jared Bunch, Peter Weiss, Luigi Di Biase, Venkat Tholakanahalli, Kairav Vakil, Usha B Tedrow, William G Stevenson, Paolo Della Bella, Kalyanam Shivkumar, Francis E Marchlinski, David J Callans, Andrea Natale, Madhu Reddy, Dhanunjaya Lakkireddy
OBJECTIVES: This study sought to evaluate the clinical outcomes of patients receiving hemodynamic support (HS) during ventricular tacchycardia (VT) ablation. BACKGROUND: There are limited real-world data evaluating its effect of HS in ablation outcomes. METHODS: An analysis of 1,655 patients from the International VT Ablation Center Collaborative group was performed. A total of 105 patients received HS with percutaneous ventricular assist device...
December 26, 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759673/characterization-of-ventricular-tachycardia-after-left-ventricular-assist-device-implantation-as-destination-therapy-a-single-center-ablation-experience
#13
Joshua D Moss, Erin E Flatley, Andrew D Beaser, John H Shin, Hemal M Nayak, Gaurav A Upadhyay, Martin C Burke, Valluvan Jeevanandam, Nir Uriel, Roderick Tung
OBJECTIVES: This study sought to report mechanisms of ventricular tachycardia (VT) and outcomes of VT ablation in patients with a left ventricular assist device (LVAD) as destination therapy. BACKGROUND: Continuous flow LVAD implantation plays a growing role in the management of end-stage heart failure, and VT is common. There are limited reports of VT ablation in patients with a destination LVAD. METHODS: Patients with a continuous-flow LVAD referred for VT ablation from 2010 to 2016 were analyzed retrospectively...
December 11, 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29758970/effects-of-an-intra-ventricular-assist-device-on-the-stroke-volume-of-failing-ventricle-analysis-of-a-mock-circulatory-system
#14
Shidong Zhu, Lin Luo, Bibo Yang, Kai Ni, Qian Zhou, Xinghui Li, Xiaohao Wang
BACKGROUND: A novel intra-ventricular assist device (iVAD) was established as a new pulsatile assist device to address various disadvantages, such as bulky configuration and reduced arterial pulsatility, observed in conventional ventricular assist devices. OBJECTIVE: Analyzed the native left ventricular stroke volume (SV) after iVAD support in vitro. METHODS: The SV of iVAD was examined in a home-designed mock circulatory system (MCS) at different heart rates and drive pressures and the SV of a failure ventricle was examined with iVAD at 75, 90, 120 bpm and 120-180 mmHg drive pressure after iVAD support...
May 4, 2018: Technology and Health Care: Official Journal of the European Society for Engineering and Medicine
https://www.readbyqxmd.com/read/29757760/cannula-tip-with-integrated-volume-sensor-for-rotary-blood-pump-control-early-stage-development
#15
Joshua Cysyk, Ray Newswanger, Eric Popjes, Walter Pae, Choon-Sik Jhun, Jenelle Izer, William Weiss, Gerson Rosenberg
The lack of direct measurement of left ventricular unloading is a significant impediment to the development of an automatic speed control system for continuous-flow left ventricular assist devices (cf-LVADs). We have developed an inlet cannula tip for cf-LVADs with integrated electrodes for volume sensing based on conductance. Four platinum-iridium ring electrodes were installed into grooves on a cannula body constructed from polyetheretherketone (PEEK). A sinusoidal current excitation waveform (250 μA pk-pk, 50 kHz) was applied across one pair of electrodes, and the conductance-dependent voltage was sensed across the second pair of electrodes...
May 10, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29757759/mechanical-circulatory-support-of-the-right-ventricle-for-adult-and-pediatric-patients-with-heart-failure
#16
Steven G Chopski, Nohra M Murad, Carson S Fox, Randy M Stevens, Amy L Throckmorton
The clinical implementation of mechanical circulatory assistance for a significantly dysfunctional or failing left ventricle as a bridge-to-transplant or bridge-to-recovery is on the rise. Thousands of patients with left-sided heart failure are readily benefitting from these life-saving technologies, and left ventricular failure often leads to severe right ventricular dysfunction or failure. Right ventricular failure (RVF) has a high rate of mortality caused by the risk of multisystem organ failure and prolonged hospitalization for patients after treatment...
May 10, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29757498/clinical-determinants-of-successful-weaning-from-extracorporeal-membrane-oxygenation-in-patients-with-fulminant-myocarditis
#17
Manabu Matsumoto, Yasuhide Asaumi, Yuichi Nakamura, Takeshi Nakatani, Toshiyuki Nagai, Tomoaki Kanaya, Shoji Kawakami, Satoshi Honda, Yu Kataoka, Seiko Nakajima, Osamu Seguchi, Masanobu Yanase, Kunihiro Nishimura, Yoshihiro Miyamoto, Kengo Kusano, Toshihisa Anzai, Teruo Noguchi, Tomoyuki Fujita, Junjiro Kobayashi, Hatsue Ishibashi-Ueda, Hiroaki Shimokawa, Satoshi Yasuda
AIMS: Patients with fulminant myocarditis (FM) often present with cardiogenic shock and require mechanical circulatory support, including extracorporeal membrane oxygenation (ECMO) and ventricular assist device (VAD) implantation. This study sought to clarify the determinants of successful weaning from ECMO in FM patients. METHODS AND RESULTS: We studied 37 consecutive FM patients supported by ECMO as the initial form of mechanical circulatory support between January 1995 and December 2014 in our hospital...
May 14, 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29753944/outcomes-with-prophylactic-use-of-percutaneous-left-ventricular-assist-devices-in-high-risk-patients-undergoing-catheter-ablation-of-scar-related-vt-a-propensity-matched-analysis
#18
Daniele Muser, Jackson J Liang, Simon A Castro, Tatsuya Hayashi, Andres Enriquez, Gregory S Troutman, Nelson W McNaughton, Gregory Supple, Edo Y Birati, Robert Schaller, Fermin C Garcia, David S Frankel, Sanjay Dixit, David J Callans, Erica S Zado, Francis E Marchlinski, Pasquale Santangeli
BACKGROUND: The PAINESD risk score predicts the risk of periprocedural acute hemodynamic decompensation (AHD) and post-procedural mortality in patients (pts) undergoing catheter ablation (CA) of scar-related ventricular tachycardia (VT). The role of prophylactic placement of percutaneous left ventricular assist devices (pLVAD) in high-risk pts is unknown. OBJECTIVES: We evaluated the outcomes of prophylactic use of pLVAD in high-risk pts undergoing CA of scar-related VT...
April 27, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29753819/use-of-the-novel-surgical-enhancement-tools-for-less-invasive-abbott-heartmate-3%C3%A2-implantation
#19
Julia Riebandt, Dominik Wiedemann, Paul Simon, Kamen Dimitrov, Guenther Laufer, Daniel Zimpfer
We present our initial experience with the novel Abbott surgical enhancement tools for less invasive HeartMate 3TM Left Ventricular Assist System (LVAS) implantation (Abbott, Chicago, IL, USA). Three new devices are introduced, a mini apical cuff with, a cuff holder and a new designed coring knife, facilitating access through left sided mini-thoracotomy.
May 10, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29753668/continuous-erector-spinae-plane-block-as-an-effective-analgesic-option-in-anticoagulated-patients-after-left-ventricular-assist-device-implantation-a-case-series
#20
Sanjib Das Adhikary, Amit Prasad, Behzad Soleimani, Ki Jinn Chin
No abstract text is available yet for this article.
April 12, 2018: Journal of Cardiothoracic and Vascular Anesthesia
keyword
keyword
30142
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"