keyword
MENU ▼
Read by QxMD icon Read
search

Continuous flow left ventricular assist device

keyword
https://www.readbyqxmd.com/read/28623639/anemia-after-continuous-flow-left-ventricular-assist-device-implantation-characteristics-and-implications
#1
Javier Amione-Guerra, Ana S Cruz-Solbes, Arvind Bhimaraj, Barry H Trachtenberg, Sai R Pingali, Jerry D Estep, Myung H Park, Ashrith Guha
BACKGROUND: Anemia is common in patients with heart failure and is associated with adverse outcomes. Management of anemia in CF-LVAD patients is not well studied. Our purpose is to characterize and identify the etiology of anemia in CF-LVAD patients. Secondary objectives are to describe the effect of CF-LVAD on pre-existing anemia and assess its impact after CF-LVAD support. METHODS: Cross-sectional study from January to July 2015 of ambulatory patients supported with a CF-LVAD for at least 6-months that presented with hemoglobin <12 g/dL and no recent gastrointestinal bleeding...
June 14, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28611860/renal-function-and-outcomes-with-use-of-left-ventricular-assist-device-implantation-and-inotropes-in-end-stage-heart-failure-a-retrospective-single-center-study
#2
Sean Verma, Emmanuel Bassily, Shane Leighton, Rahul Mhaskar, Igor Sunjic, Angel Martin, Nancy Rihana, Tambi Jarmi, Claude Bassil
BACKGROUND: Left ventricular assist device (LVAD) and inotrope therapy serve as a bridge to transplant (BTT) or as destination therapy in patients who are not heart transplant candidates. End-stage heart failure patients often have impaired renal function, and renal outcomes after LVAD therapy versus inotrope therapy have not been evaluated. METHODS: In this study, 169 patients with continuous flow LVAD therapy and 20 patients with continuous intravenous inotrope therapy were analyzed...
July 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/28606399/pediatric-continuous-flow-left-ventricular-assist-devices-no-longer-just-a-bridge-the-changing-of-a-mindset
#3
EDITORIAL
Chet R Villa, Angela Lorts, David L S Morales
No abstract text is available yet for this article.
May 17, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28595702/left-ventricular-assist-devices-for-lifelong%C3%A2-support
#4
REVIEW
Sean P Pinney, Anelechi C Anyanwu, Anuradha Lala, Jeffrey J Teuteberg, Nir Uriel, Mandeep R Mehra
Continuous-flow left ventricular assist devices (LVADs) have revolutionized advanced heart failure care. These compact, fully implantable heart pumps are capable of providing meaningful increases in survival, functional capacity, and quality of life. Implantation volumes continue to grow, but several challenges remain to be overcome before LVADs will be considered as the therapy of choice for all patients with advanced heart failure. They must be able to consistently extend survival for the long term (7 to 10 years), rather than the midterm (3 to 5 years) more typical of contemporary devices; they must incorporate design elements that reduce shear stress and avoid stasis to reduce the frequent adverse events of bleeding, stroke, and pump thrombosis; and they must become more cost-effective...
June 13, 2017: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/28579115/bleeding-and-thrombosis-associated-with-ventricular-assist-device-therapy
#5
Palak Shah, Udaya S Tantry, Kevin P Bliden, Paul A Gurbel
Over the past decade, continuous-flow rotary pumps have dramatically improved survival for patients with advanced systolic heart failure. Bleeding and thrombosis, however, continue to be the Achilles heel of left ventricular assist device (LVAD) therapy. There is a dynamic and complex interaction between the patient and pump. The net effect of a variety of hematologic derangements, such as hemolysis, high-molecular-weight von Willebrand degradation, platelet activation and diminished pulsatility, is poorly understood...
May 11, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28547176/metabolic-volume-performs-better-than-suvmax-in-the-detection-of-left-ventricular-assist-device-driveline-infection
#6
Nemanja Avramovic, Angelo Maria Dell'Aquila, Matthias Weckesser, Danka Milankovic, Alexis Vrachimis, Jürgen R Sindermann, Christian Wenning
PURPOSE: A continuous-flow left ventricular assist device (LVAD) is a new and highly promising therapy in supporting end-stage heart failure patients, either bridging them to heart transplantation or as a destination therapy. Infection is one of the major complications associated with LVAD implants. (18)F-FDG PET/CT has already been shown to be useful in the detection of LVAD infection. The goal of this study was to compare the diagnostic accuracy of different PET analysis techniques (visual grading versus SUVmax and metabolic volume)...
May 25, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28543813/inhaled-pulmonary-vasodilator-therapy-for-management-of-right-ventricular-dysfunction-after-left-ventricular-assist-device-placement-and-cardiac-transplantation
#7
Leah A Sabato, David M Salerno, Jeremy D Moretz, Douglas L Jennings
Right ventricular failure (RVF) after cardiac transplant (CTX) or implantation of a continuous-flow left ventricular assist device (CF-LVAD) is associated with significant post-operative morbidity and mortality. A variety of modalities have been used to treat post-operative RVF, including management of volume status, intravenous inotropes and vasodilators, and right-sided mechanical support. Inhaled vasodilator agents are a unique treatment option aimed at minimizing systemic absorption by delivering therapy directly to the pulmonary vasculature...
May 24, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28535190/concomitant-repair-for-mild-aortic-insufficiency-and-continuous-flow-left-ventricular-assist-devices
#8
Shinichi Fukuhara, Hirohisa Ikegami, Antonio R Polanco, Jeremy J Song, Jiho Han, Koji Takeda, Paul A Kurlansky, Hiroo Takayama, Yoshifumi Naka
OBJECTIVES: Aortic insufficiency (AI) after continuous-flow left ventricular assist device (CF-LVAD) implantation has become a highly relevant subject. However, management of pre-existing mild AI is unknown. We examined the fate of pre-existing mild AI during CF-LVAD support. METHODS: From March 2004 to October 2015, 446 consecutive patients received CF-LVAD. Of these, 56 (12.6%) patients with pre-existing mild AI were identified. Outcomes were compared between patients who underwent repair [ n  = 41 (73...
May 23, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28526500/pulmonary-function-tests-do-not-predict-mortality-in-patients-undergoing-continuous-flow-left-ventricular-assist-device-implantation
#9
Edo K S Bedzra, Todd F Dardas, Richard K Cheng, Jay D Pal, Claudius Mahr, Jason W Smith, Kent Shively, S Carolina Masri, Wayne C Levy, Nahush A Mokadam
OBJECTIVES: To investigate the effect of pulmonary function testing on outcomes after continuous flow left ventricular assist device implantation. METHODS: A total of 263 and 239 patients, respectively, had tests of forced expiratory volume in 1 second and diffusing capacity of the lungs for carbon monoxide preoperatively for left ventricular assist device implantations between July 2005 and September 2015. Kaplan-Meier analysis and multivariable Cox regressions were performed to evaluate mortality...
April 11, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28508409/mycobacterium-chimaera-left-ventricular-assist-device-infections
#10
Leora B Balsam, Eddie Louie, Fred Hill, Jamie Levine, Michael S Phillips
A global outbreak of invasive Mycobacterium chimaera infections after cardiac surgery has recently been linked to bioaerosols from contaminated heater-cooler units. The majority of cases have occurred after valvular surgery or aortic graft surgery and nearly half have resulted in death. To date, infections in patients with left ventricular assist devices (LVADs) have not been characterized in the literature. We report two cases of device-associated M. chimaera infection in patients with continuous-flow LVADs and describe challenges related to diagnosis and management in this population...
May 15, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28504984/melding-a-high-risk-patient-for-continuous-flow-left-ventricular-assist-device-into-a-low-risk-patient
#11
Javier Amione-Guerra, Ana S Cruz-Solbes, Hilda Gonzalez Bonilla, Jerry D Estep, Ashrith Guha, Arvind Bhimaraj, Erik E Suarez, Brian A Bruckner, Guillermo Torre-Amione, Myung H Park, Barry H Trachtenberg
The model for end-stage liver disease (MELD) has been used as a predictor of mortality after left ventricular assist device (LVAD) placement. However, improvement or worsening of MELD and how those changes affect outcomes is unknown. We performed a retrospective analysis of 244 patients implanted with a continuous flow (CF) LVAD. Patients were dichotomized at admission into low- or high-risk categories using a cutoff of MELD ≥ 19, and they were reclassified at day of implant forming four groups: Group LL (remained low risk), LH (worsened to high risk), HH (remained high risk), and HL (improved to low risk)...
May 10, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28500612/electric-smog-telemetry-interference-between-icd-and-lvad
#12
REVIEW
David Duncker, Thorben König, Johanna Müller-Leisse, Roman Michalski, Hanno Oswald, Jan D Schmitto, Johann Bauersachs, Christian Veltmann
Electromagnetic interferences between implantable cardioverter/defibrillators (ICD) and left ventricular assist devices (LVAD) impacting telemetry have been described in previous generations of ICD as well as LVAD, but have been predominantly overcome in current ICD generations. After introduction of a new fully magnetically levitated centrifugal continuous-flow circulatory pump, we report a case of tenacious telemetry interference between the HeartMate 3 LVAD and an ICD after battery exchange to an Iforia 5...
May 12, 2017: Herzschrittmachertherapie & Elektrophysiologie
https://www.readbyqxmd.com/read/28495065/the-miniaturized-pediatric-continuous-flow-device-preclinical-assessment-in-the-chronic-sheep-model
#13
Iki Adachi, Sarah Burki, David Horne, Gil G Costas, Taylor Spangler, Robert Jarvik, John Teal, J Timothy Baldwin, Kurt Dasse, M Patricia Massicotte, Jeff Conger, William E Cohn, Charles D Fraser
BACKGROUND: The Infant Jarvik 2015 is an implantable axial-flow ventricular assist device (VAD) that has undergone the major evolutionary design modifications to improve hemocompatibility. This study was conducted in anticipation of data submission to the US Food and Drug Administration to obtain Investigational Device Exemption approval. METHODS: The VAD was implanted via a left thoracotomy in Barbado sheep (n = 10, 26 (19-34] kg). Anticoagulation was maintained with coumadin, with a target international normalized ratio of greater than the individual sheep's baseline values...
July 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/28492415/anticoagulation-control-in-patients-with-ventricular-assist-devices
#14
Amelia K Boehme, Salpy V Pamboukian, James F George, T Mark Beasley, James K Kirklin, Jose Tallaj, Chrisly Dillon, Emily B Levitan, Russell Griffin, Gerald McGwin, William B Hillegass, Nita A Limdi
Anticoagulation control has been associated with risk of thromboembolism and hemorrhage. Herein, we explore the relationship between anticoagulation control achieved in left ventricular assist device (LVAD) patients and evaluate the association with risk of thromboembolism and hemorrhage. Patients (19 years old or older) with a continuous flow LVAD placed from 2006 to 2012. Proportion of time spent in target range (PTTR) for international normalized ratio (INR) was estimated with target range of 2.0-3.0. Proportion of time spent in target range was categorized into PTTR > 60%, PTTR ≥ 50 < 60%, and PTTR < 50%...
May 9, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28483150/de-novo-aortic-regurgitation-after-continuous-flow-left-ventricular-assist-device-implantation
#15
REVIEW
Hrvoje Gasparovic, Tomislav Kopjar, Diyar Saeed, Maja Cikes, Lucija Svetina, Mate Petricevic, Daniel Lovric, Davor Milicic, Bojan Biocina
Continuous-flow left ventricular assist devices (cf-LVAD) play an important role in the management of patients with advanced heart failure. De novo aortic regurgitation after cf-LVAD implantation may adversely impact device performance. We performed a systematic search of PubMed, SCOPUS, and Cochrane Library for articles reporting on the incidence and predictors of de novo aortic regurgitation among cf-LVAD recipients. Eight studies totaling 548 patients were identified in the meta-analysis. The pooled incidence of de novo AR across the analyzed studies was 37%...
May 5, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28481994/risk-factors-for-the-development-of-right-ventricular-failure-after-left-ventricular-assist-device-implantation-a-single-centre-retrospective-with-focus-on-deformation-imaging%C3%A2
#16
Nadia Boegershausen, Rashad Zayat, Ali Aljalloud, Giulia Musetti, Andreas Goetzenich, Lachmandath Tewarie, Ajay Moza, Andrea Amerini, Rüdiger Autschbach, Nima Hatam
OBJECTIVES: Right heart failure (RHF) after the implantation of a left ventricular assist device (LVAD) remains a dreaded postoperative complication. Using 2D speckle-tracking echocardiography, it is possible to acquire right ventricular global and regional function. The aim of our study was to assess whether speckle-tracking echocardiography values will better predict the RHF post-continuous-flow LVAD implantation. METHODS: From January 2014 to January 2016, 54 patients who underwent LVAD implantation were included and retrospectively analysed...
May 8, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28475802/complete-fusion-of-a-percutaneous-aortic-valve-placed-after-ventricular-assist-device
#17
Stephen L Derryberry, Renaldo D Williams, Joseph L Fredi, Stephen K Ball
Severe aortic insufficiency following continuous flow left ventricular assist device (LVAD) placement requires intervention. Conventional corrective approaches are varied and morbid. Increasingly, percutaneous solutions, such as transcatheter aortic valve replacement (TAVR), have been used to rescue these patients. The unique flow characteristics in the aortic root following LVAD implantation may have unintended consequences to the TAVR leaflets. We describe the premature fusion of TAVR leaflets following 159 days of LVAD support...
May 4, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28467129/heartware-hvad-for-end-stage-heart-failure-a-review-of-clinical-experiences-with-%C3%A2-50-patients
#18
Luca Botta, Benedetta De Chiara, Francesca Macera, Aldo Cannata, Alessandro Costetti, Alessandra Voltolini, Antonella Moreo, Manlio Cipriani, Maria Frigerio, Claudio Francesco Russo
Despite the improvements in medical and surgical treatments, the incidence of end-stage heart failure (ESHF) continues to increase. Different mechanical systems have been adopted to support failing left ventricles. Among continuous-flow devices, the HeartWare-HVAD was the first to use a centrifugal pump rather than an axial one. Areas covered: In this review article, we provide an overview of the HeartWare-HVAD as a ventricular assist device for ESHF, discussing indications, echocardiographic assessment, surgical techniques, outcomes, concerns and controversies...
June 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/28461802/nonidentical-continuous-flow-devices-for-biventricular-support
#19
Andrew C W Baldwin, Elena Sandoval, William E Cohn, Hari R Mallidi, Jeffrey A Morgan, O H Frazier
Although biventricular heart failure has been successfully managed with dual continuous-flow ventricular assist devices, the long-term use of 2 mechanically dissimilar pumps has traditionally been discouraged. We present the case of a 52-year-old man whose treatment with a HeartMate II left ventricular assist device was complicated by right ventricular failure, necessitating the implantation of a long-term right ventricular assist device. A HeartWare left ventricular assist device was placed along the right ventricular base to avoid interference with the HeartMate II housing...
April 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28459742/clinical-implications-of-physiologic-flow-adjustment-in-continuous-flow-left-ventricular-assist-devices
#20
Vakhtang Tchantchaleishvili, Jessica G Y Luc, Caitlin M Cohan, Kevin Phan, Laila Hübbert, Steven W Day, H Todd Massey
There is increasing evidence for successful management of end-stage heart failure with continuous-flow left ventricular assist device (CF-LVAD) technology. However, passive flow adjustment at fixed CF-LVAD speed is susceptible to flow balancing issues as well as adverse hemodynamic effects relating to the diminished arterial pulse pressure and flow. With current therapy, flow cannot be adjusted with changes in venous return, which can vary significantly with volume status. This limits the performance and safety of CF-LVAD...
May 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
keyword
keyword
48248
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"