Relevant bibliographies by topics / Left venricular assist device

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Book chapters
  4. Conference papers
  5. Reports

Academic literature on the topic 'Left venricular assist device'

Author: Grafiati
Published: 4 June 2021
Last updated: 8 February 2022

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Journal articles on the topic "Left venricular assist device"

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Čulo, Marija, and Marija Renić. "Left ventricular assist device." Cardiologia Croatica 11, no. 10-11 (November 2016): 572. http://dx.doi.org/10.15836/ccar2016.572.

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Frigerio, Maria. "Left Ventricular Assist Device." Heart Failure Clinics 17, no. 4 (October 2021): 619–34. http://dx.doi.org/10.1016/j.hfc.2021.05.007.

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Robson, Desiree. "Heartmate - left ventricle assist device." Nursing Standard 10, no. 9 (November 22, 1995): 52–53. http://dx.doi.org/10.7748/ns.10.9.52.s55.

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Bond, A. Elaine, Karl Nelson, Cara Lynn Germany, and Angie N. Smart. "The Left Ventricular Assist Device." AJN, American Journal of Nursing 103, no. 1 (January 2003): 32–40. http://dx.doi.org/10.1097/00000446-200301000-00018.

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Long, J. W., W. Dembitsky, R. Khodaverdian, A. J. Powers, and R. Adamson. "Left ventricular assist device replacement." Journal of Heart and Lung Transplantation 22, no. 1 (January 2003): S83—S84. http://dx.doi.org/10.1016/s1053-2498(02)00706-4.

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Kormos, Robert L., Michael McCall, Andrew Althouse, Luigi Lagazzi, Richard Schaub, Michael A. Kormos, Jared A. Zaldonis, et al. "Left Ventricular Assist Device Malfunctions." Circulation 136, no. 18 (October 31, 2017): 1714–25. http://dx.doi.org/10.1161/circulationaha.117.027360.

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Smietana, Jeffrey. "Left Ventricular Assist Device Artifact." Circulation 142, no. 7 (August 18, 2020): 705–7. http://dx.doi.org/10.1161/circulationaha.120.049195.

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O’Horo, John C., Omar M. Abu Saleh, John M. Stulak, Mark P. Wilhelm, Larry M. Baddour, and M. Rizwan Sohail. "Left Ventricular Assist Device Infections." ASAIO Journal 64, no. 3 (2018): 287–94. http://dx.doi.org/10.1097/mat.0000000000000684.

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Simpson, Martha, Rosemary Luquire, Linda Dewitt, and Vicki Draper. "TCI Left Ventricular Assist Device." Dimensions Of Critical Care Nursing 9, no. 6 (November 1990): 318–26. http://dx.doi.org/10.1097/00003465-199011000-00002.

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Horton, Steven C., Reza Khodaverdian, Peter Chatelain, Marsha L. McIntosh, Benjamin D. Horne, Joseph B. Muhlestein, and James W. Long. "Left Ventricular Assist Device Malfunction." Journal of the American College of Cardiology 45, no. 9 (May 2005): 1435–40. http://dx.doi.org/10.1016/j.jacc.2005.01.037.

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Dissertations / Theses on the topic "Left venricular assist device"

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Bruti, Gianpaolo. "Experimental and computational investigations for the development of intro-aortic balloon pump therapy." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/12476.

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Heart failure (HF) is a widely prevalent state in developing countries, especially among people over 65, with percentages up to 10% of the population in the US. In all developed countries the expenditure related to congestive heart failure consists of a high percentage of the total health care expenditure, reaching 60% in the UK (1991 1). One of the main strategies for dealing with HF is the use of cardiac assist devices. Among these the most widely used device is the Intra-Aortic balloon pump (IABP). The IABP has as the main aims to increase coronary flow during inflation, and decrease end diastolic pressure and ventricular afterload during deflation. The device was introduced for the first time into clinical practice over 40 years ago, but open issues still remain with the performance of the device. In fact, both inflation and deflation effectiveness are compromised when the balloon operates at an angle to the horizontal, which is often the operating position of the device in intensive care units. The main aim of the work described in this thesis is to investigate the IABP in order to improve the efficacy of this therapy, in terms of IAB design and IABP timing effectiveness. For this purpose the balloon was first filmed in an experimental set-up to visualize its wall-motion with a high speed camera. The results of this investigation were the input for the development of different designs of balloon, tested at horizontal and angled positions. Both, inflation and deflation effectiveness were augmented using different shaped balloons in an experimental set-up characterized by static pressure as well as in one characterized by physiological pressure waveform. The improved performance was associated to an improved clinical outcome on a PV diagram. In addition different pumps and pump settings were studied in an experimental set-up, characterized by physiological aortic pressure waveform, in order to estimate the influence of different pump manufacturers and triggers on the performance of the device. In this case one of the pumps (Teleflex), with the new technology for pressure measurement via a fibre optic sensor, showed to best trigger the IAB after inflation onset, while the highest number of assisted beats was obtained when this pump was set on electrocardiogram (ECG) triggering. Nonetheless a first development of multi-dimensional computational model of the IAB counterpulsation was realized with the aim of establishing the effect of this therapy on relevant areas, such as aortic root, and in order to have an insight on the 3-D flow field in the surrounding of IAB: these information can be crucial for the optimisation of the balloon’s shape. In conclusion, the key finding was that a change in balloon shape influences both, inflation and deflation mechanics at horizontal and semi-recumbent positions, and this strategy can be used for maximising the IABP clinical benefits. With the aid of the computational model it will be possible to further develop the already tested balloon different shapes. Not less important, IABP therapy was demonstrated to be crucially influenced by the pump setting and mode (triggering inflation and deflation onsets), hence the clinical operator is addressed to change the pump mode of operation according to the patient’s condition to maximise the potential benefit of this therapy.
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Klotz, Stefan. "Left ventricular assist device (LVAD) induced reverse remodeling." Münster Schüling, 2006. http://deposit.d-nb.de/cgi-bin/dokserv?id=2959073&prov=M&dok_var=1&dok_ext=htm.

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Wong, Alissa Kei. "Efficiency Evaluation of a Left Ventricular Assist Device." VCU Scholars Compass, 2007. http://scholarscompass.vcu.edu/etd_retro/64.

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Most current designs for Left Ventricular Assist Devices (LVAD) are based on rotary pumps due to their small size and lack of valves. However, the majority of FDA approved LVADs are larger, positive displacement pumps. One reason for this may be because positive displacement pumps produce pulsatile flow, similar to that of the natural heart, while rotary pumps produce continuous flow. Continuous flow has been shown to support the circulation for short periods of time during open-heart surgery, but it has seen limited success with long-term support. It is thought that pulsatile flow provides many metabolic advantages to patients with high total peripheral resistance (TPR) and lower flowrates. This study focused on modifying a continuous flow multiple disk centrifugal pump (MDCP) into a pulsatile pump, to allow for the combined benefits of the pulsatility from positive displacement pumps and the small size and valveless design of rotary pumps. An efficiency study was carried out by evaluating the hydraulic work output and the power requirements of the pump. The pump was evaluated in both pulsatile and continuous flow modes. In continuous mode, the pump was able to maintain a flow of 5.5 L/min against a pressure head of 60mmHg at 1155rpm. Other LVADs have reported rotational speeds around 2400rpm for centrifugal and 10,000rpm for axial pumps to produce flows around 5 L/min. This indicates that the MDCP is capable of producing flowrates at lower rotational speeds than other LVADs, lessening the mechanical wear of the parts, thus potentially increasing the device's lifespan. In pulsatile mode, cardiac outputs of 5 L/min were achieved against a 55/27mmHg outlet pressure. Higher pressures were unattainable with our current testing apparatus, but the results from the pulsatile tests prove that the MDCP can be operated in a pulsatile fashion and produce normal flowrates at low pressures. The pump efficiency was lower than expected, around 0.7-9% in continuous mode and 3-18% in pulsatile mode, consuming 3.5-28W and 0.5-2.3W, respectively. Utilizing a smaller motor may produce higher efficiencies, since the power requirements will be less without decreasing the flowrates, but a further study should be conducted in order to verify this.
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Falls, Candice. "FRAILTY IN PATIENTS UNDERGOING LEFT VENTRICULAR ASSIST DEVICE IMPLANTATION." UKnowledge, 2019. https://uknowledge.uky.edu/nursing_etds/47.

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Heart failure is a progressive condition that affects over 5.7 million Americans and costs associated with heart failure account for 2-3 % of the national health care budget. The high rates of morbidity and mortality along with increased costs from readmissions associated with advanced heart failure have led to the exploration of advanced treatments such as left ventricular assist devices (LVADs). LVADS have demonstrated morbidity and mortality benefit but cost remains extensive with costs per quality-adjusted years > $400,000. With this in mind, it is important to identify those who are most likely to benefit from an LVAD to avoid unfavorable outcomes and cost. Although general guidelines and criteria for patient eligibility have been established, choosing patients for LVAD implantation remains challenging. A new focus on patient selection involves the presence of frailty. While frailty has been studied in the elderly population and in patients undergoing cardiac surgery, frailty in patients undergoing left ventricular assist device (LVAD) remains controversial. The purpose of this dissertation was to examine measures of frailty in patients undergoing LVAD implantation. The specific aims of this dissertation were to: (1) identify a feasible frailty measure in adults with end-stage heart failure who underwent LVAD implantation by testing the hypothesis that frailty would predict 30 day rehospitalization rates using Fried’s criteria, Short Physical Performance Battery test, handgrip strength, serum albumin and six minute walk test (2) Determine whether frailty measures improve 3 months post LVAD implantation (3) compare sensitivity of these three measures to change in frailty. Surgical approaches, including heart transplantation and LVAD implantation, for patients with end-stage heart failure was discussed in this dissertation. Data from two subsets of participants who underwent LVADS at the University of Kentucky between 2014 and 2017 were included in the analysis for this dissertation. In the first study, we found that none of the measures are good predictors of frailty in patients with advanced heart failure who undergo LVAD implantation. Handgrip was the only marker of frailty that predicted 30 day readmission but the relationship was a negative association. In the second study, six-minute walk and low serum albumin levels reflect short-term improvement in frailty. These simple measures may be used to determine those patients who are responsive to LVAD implantation. The findings of these studies filled some gaps in our understanding of markers of frailty in patients undergoing LVADs. We gained a better understanding of which markers of frailty are likely to improve in most people after LVAD implantation and thus frailty should not preclude candidate selection for an LVAD. Subsequently, more research is needed to investigate these markers and outcomes.
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Vedi, Manmeet Singh. "Design and construction of a left ventricular cardiovascular assist device." Thesis, Texas A&M University, 2004. http://hdl.handle.net/1969.1/1131.

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Congestive heart failure (CHF) is a debilitating condition that afflicts 4.8 million Americans with an increasing incidence. Each year, there are an estimated 400,000 new cases. The incidence is on the rise as the age of the population is increasing and because most people are surviving their first heart attack. Pharmacological therapies are improving, yet many patients still reach end-stage heart failure and there are too few donor hearts available. This thesis is presented as a first small step in a long process in the design and development of a novel cardiac assist device that would ultimately heal a diseased heart by the process of ventricular recovery. The device acts to restore the kinematics of a diseased heart by modulating the extra ventricular displacements. The first surgery / trial were conducted on a bovine at the Veterinary School at Texas A&M University. Main objectives of the surgery were to test the method of attachment of the device and power requirements of the device. Details regarding the design and construction of the device have been presented in the thesis.
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Akbari, Arvin. "INVERKAN AV LEFT VENTRICULAR ASSIST DEVICE PÅ HÖGERKAMMARFUNKTION EFTER HJÄRTTRANSPLANTATION." Thesis, Malmö universitet, Fakulteten för hälsa och samhälle (HS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-26348.

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Då ingen medicinsk behandling längre är tillräcklig anses hjärttransplantation vara det slutliga alternativet för patienter med svår hjärtsvikt (stadie IV). Dock ges endast ett fåtal patienter möjligheten till att få ett nytt hjärta, vilket bland annat beror på organbrist, långa väntetider och annan komorbiditet. Allt fler i denna patientgrupp får stöd av en inopererad hjärtpump; Left Ventricular Assist Device (LVAD) i väntan på transplantation. Syftet med denna studie var att med transthorakal ekokardiografi undersöka om förbehandling med LVAD kan inverka positivt på högerkammarfunktionen även efter hjärttransplantation och huruvida denna effekt är bestående under längre tid. Totalt 31 patienter (27 män) med medelåldern 53 ± 12 år inkluderades i studien varav 13 stycken förbehandlats med LVAD innan hjärttransplantation. Data samlades in prospektivt. All patientdata är tagen från Lunds universitetssjukhus databaser. I studien undersöktes om högerkammarfunktionen skiljer sig åt hos hjärttransplanterade vid 1 månad och 12 månader efter transplantation beroende på om de förbehandlats med LVAD eller inte. De konventionella parametrarna för bedömning av högerkammarfunktion som värderades var tricuspid annular plane systolic excursion (TAPSE), högerkammar systolisk vävnadsdoppler (RVS’), right ventricular fractional area change (RVFAC), samt tvådimensionell högerkammarstrain med hjälp av speckle tracking. Resultatet visade statistiskt signifikanta skillnader för högerkammar- globala longitudinell strain (RVGLS) och högerkammarens fria vägg strain efter 1 månad (RVFS) mellan grupperna (för båda parametrarna p-värde < 0,01). Efter 12 månader uppvisade grupperna ingen signifikant skillnad. För övriga parametrar: TAPSE, RVS’, RVFAC påvisades inga statistisk signifikanta skillnader mellan grupperna efter 1 månad och 12 månader.
Heart transplantation is considered to be the most appropriate end-stage option in treating patients with severe heart failure. However, lack of organs, long waiting times and other comorbidities reduce the number of patients eligible for this treatment. In order to reduce mortality of this patient group, increasing numbers of patients with severe heart failure receive support from an inoperative cardiac pump (i.e. Left Ventricular Assist Device; LVAD) awaiting transplantation. The purpose of this study was to investigate with transthoracic echocardiography if pretreatment with LVAD may positively affect right ventricular function after cardiac transplantation and whether this effect lasts for a long time. A total of 31 patients were included in this study, where of 13 patients were pretreated with LVAD before cardiac transplantation. The majority of patients were men (n=27) with mean age of 53 ± 12 years. Data has been collected prospectively. All patient data used in this study were taken from Lund University Hospital databases. It was investigated whether right ventricular function differs in cardiac transplanted patients 1 month and 12 months after transplantation based on if patients where pretreated with LVAD and not. The parameters for evaluation of RV function were tricuspid annular plane systolic excursion (TAPSE), right ventricular systolic tissue velocity (RVS'), right ventricular fractional area change (RVFAC) and two-dimensional RV strain with speckle tracking. Results showed statistically significant differences between the groups 1 months after transplantation for right ventricular global longitudinal strain (RVGLS) and the RV free wall strain (RVFS), both parameters p-value < 0.01. This difference were not detectable after 12 months. For the parameters TAPSE, RVS ', RVFAC, no statistically significant differences were observed between the groups at either time point.
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Wang, Yu. "A NEW DEVELOPMENT OF FEEDBACK CONTROLLER FOR LEFT VENTRICULAR ASSIST DEVICE." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2386.

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The rotary Left Ventricular Assist Device (LVAD) is a mechanical pump surgically implanted in patients with end-stage congestive heart failure to help maintain the flow of blood from the sick heart. The rotary type pumps are controlled by varying the impeller speed to control the amount of blood flowing through the LVAD. One important challenge in using these devices is to prevent the occurrence of excessive pumping of blood from the left ventricle (known as suction) that may cause it to collapse due to the high pump speed. The development of a proper feedback controller for the pump speed is therefore crucial to meet this challenge. In this thesis, some theoretical and practical issues related to the development of such a controller are discussed. First, a basic nonlinear, time-varying cardiovascular-LVAD circuit model that will be used to develop the controller is reviewed. Using this model, a suction index is tested to detect suction. Finally we propose a feedback controller that uses the pump flow signal to regulate the pump speed based on the suction index and an associated threshold. The objective of this controller is to continuously update the pump speed to adapt to the physiological changes of the patient while at the same time avoiding suction. Simulation results are presented under different conditions of the patient activities. Robustness of the controller to measurement noise is also discussed.
M.S.E.E.
School of Electrical Engineering and Computer Science
Engineering and Computer Science
Electrical Engineering MSEE
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Wang, Yu. "Suction Detection and Feedback Control for the Rotary Left Ventricular Assist Device." Doctoral diss., University of Central Florida, 2013. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/6032.

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The Left Ventricular Assist Device (LVAD) is a rotary mechanical pump that is implanted in patients with congestive heart failure to help the left ventricle in pumping blood in the circulatory system. The rotary type pumps are controlled by varying the pump motor current to adjust the amount of blood flowing through the LVAD. One important challenge in using such a device is the desire to provide the patient with as close to a normal lifestyle as possible until a donor heart becomes available. The development of an appropriate feedback controller that is capable of automatically adjusting the pump current is therefore a crucial step in meeting this challenge. In addition to being able to adapt to changes in the patient's daily activities, the controller must be able to prevent the occurrence of excessive pumping of blood from the left ventricle (a phenomenon known as ventricular suction) that may cause collapse of the left ventricle and damage to the heart muscle and tissues. In this dissertation, we present a new suction detection system that can precisely classify pump flow patterns, based on a Lagrangian Support Vector Machine (LSVM) model that combines six suction indices extracted from the pump flow signal to make a decision about whether the pump is not in suction, approaching suction, or in suction. The proposed method has been tested using in vivo experimental data based on two different LVAD pumps. The results show that the system can produce superior performance in terms of classification accuracy, stability, learning speed, and good robustness compared to three other existing suction detection methods and the original SVM-based algorithm. The ability of the proposed algorithm to detect suction provides a reliable platform for the development of a feedback control system to control the current of the pump (input variable) while at the same time ensuring that suction is avoided. Based on the proposed suction detector, a new control system for the rotary LVAD was developed to automatically regulate the pump current of the device to avoid ventricular suction. The control system consists of an LSVM suction detector and a feedback controller. The LSVM suction detector is activated first so as to correctly classify the pump status as No Suction (NS) or Suction (S). When the detection is “No Suction”, the feedback controller is activated so as to automatically adjust the pump current in order that the blood flow requirements of the patient's body at different physiological states are met according to the patient's activity level. When the detection is “Suction”, the pump current is immediately decreased in order to drive the pump back to a normal No Suction operating condition. The performance of the control system was tested in simulations over a wide range of physiological conditions.
Ph.D.
Doctorate
Electrical Engineering and Computer Science
Engineering and Computer Science
Electrical Engineering
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VAN, WINKLE MICHAEL G. "PYROLYTIC CARBON STUDY AS AN IMPLANTABLE MATERIAL FOR A LEFT VENTRICLE ASSIST DEVICE." University of Cincinnati / OhioLINK, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1085776125.

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Noor, Mumin. "Interaction of the left ventricle and left ventricular assist device during mechanical circulatory support for advanced heart failure." Thesis, Imperial College London, 2015. http://hdl.handle.net/10044/1/51108.

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The work in this thesis was undertaken to examine clinically significant questions at a time of evolving Left Ventricular Assist Device (LVAD) technology. The main theme of the research was to increase our understanding of the interaction between left ventricle and newer continuous flow LVADs through both in-vitro models and clinical studies with the ultimate aim of improving patient care. The hydrodynamic performance of the two continuous flow LVADs (Thoratec HeartMate II and HeartWare HVAD) was compared in a normothermic, human blood-filled pulsatile mock circulation model under conditions of steady flow and under simulated physiological conditions. These experiments were repeated using dextrose in order to determine its suitability as a mock circulation blood analogue. This study found that clinically representative pulsatile relationships are better represented as H/Q loops instead of linear plots. This allows for greater understanding of the instantaneous H/Q relationship of LVADs with the native LV. The relationship between LVAD pump speed and exercise capacity was studied in patients receiving support from a continuous flow HM II and examined the influence of residual LV function on this relationship. This study found that exercise time and pkVO2 are sensitive to pump speed in patients with poor LV function receiving HM II support. By contrast, insensitivity of exercise parameters such as pkVO2 and exercise time to changes in pump speed may be a non-invasive indicator for LV functional recovery in patients receiving support with rotary LVADs. Effect of temporarily increasing pump speed on exercise capacity was then studied in a group of patients supported with continuous flow LVADs. The study showed that it was safe and feasible to temporarily increase LVAD speed during exercise and this resulted in a significant increase in peak oxygen consumption. Furthermore, improved exercise capacity was observed in both axial and centrifugal pump devices. Radial strain and radial strain rate values were measured by Speckle Tracking Echocardiography to assess LV function and mechanics. The effect of reducing pump speed on these measurements was also examined. My result showed that the radial strain values are significantly lower than normal range and in keeping with advanced heart failure patients. I found the measurements to be relatively independent of degree of LVAD speed and may potentially reflect underlying LV function. Lastly, I investigated the feasibility of recording acoustic waveforms from a LVAD using an electronic stethoscope and analysing the frequency components of the LVAD acoustic spectrum. After recording the findings in patients with normal pump function, we compared it to patients with pump thrombosis. The acoustic profile is primarily determined by rotation speed and device design. In pump thrombosis cases, there were atypical spectral peaks during pump thrombus episodes. Acoustic monitoring is a simple non-invasive method which may have clinical utility in the diagnosis of pump thrombus episodes in patients supported by a rotary LVAD.
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Book chapters on the topic "Left venricular assist device"

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Davis, James W., Dana Forman, La Scienya M. Jackson, James W. Davis, Javier Garau, David N. O’Dwyer, Elisa Vedes, et al. "Left Ventricular Assist Device (LVAD)." In Encyclopedia of Intensive Care Medicine, 1324. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-00418-6_1819.

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Sheridan, Brett C., and Jason N. Katz. "Hemodynamics of left ventricular assist device implantation." In Cardiovascular Hemodynamics for the Clinician, 266–75. Chichester, UK: John Wiley & Sons, Ltd, 2016. http://dx.doi.org/10.1002/9781119066491.ch22.

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Okada, Masayoshi, Maki Kubota, Masanao Imai, Yoshimi Koyama, and Kazuo Nakamura. "Left ventricular assist device: Experimental and clinical study." In Artificial Heart 2, 195–203. Tokyo: Springer Japan, 1988. http://dx.doi.org/10.1007/978-4-431-65964-8_21.

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Imanishi, Kaoru, Kou Imachi, Takashi Isoyama, Yusuke Abe, Tsuneo Chinzei, Kunihiko Mabuchi, Nobumasa Tsutsui, et al. "A Percutaneously Accessible Pulsatile Left Ventricular Assist Device." In Heart Replacement, 367–70. Tokyo: Springer Japan, 1996. http://dx.doi.org/10.1007/978-4-431-67020-9_54.

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Viganò, M., M. Rinaldi, F. Pagani, G. Minzioni, A. M. D’Armini, and E. Ardemagni. "Left Ventricular Assist Device as Bridge to Transplantation." In Advances in Cardiomyopathies, 303–12. Milano: Springer Milan, 1998. http://dx.doi.org/10.1007/978-88-470-2155-6_35.

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Venkataramani, Ranjani, Michael Zhen-Yu Tong, and Shiva Sale. "Perioperative Considerations in Left Ventricular Assist Device Placement." In Mechanical Support for Heart Failure, 151–69. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-47809-4_11.

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Gomes, J. Anthony. "Ventricular Tachycardia Associated with Left Ventricular Assist Device." In Heart Rhythm Disorders, 221–28. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-45066-3_15.

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Bitar, Abbas, and Dmitry Abramov. "Right Ventricular Failure Post Left Ventricular Assist Device Implantation." In Ventricular-Assist Devices and Kidney Disease, 143–60. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74657-9_10.

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Oz, Mehmet C., Howard R. Levin, Keith Reemtsma, and Eric A. Rose. "Patient Selection Criteria for Left Ventricular Assist Device Placement." In Cardiac Surgery, 99–103. Boston, MA: Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1939-3_12.

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Wampler, Richard K., and Raymond A. Riehle. "Clinical Experience with the Hemopump Left Ventricular Assist Device." In Supported Complex and High Risk Coronary Angioplasty, 231–49. Boston, MA: Springer US, 1991. http://dx.doi.org/10.1007/978-1-4615-3890-5_14.

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Conference papers on the topic "Left venricular assist device"

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Abadeer, A., M. Putnins, J. Badach, P. Kamdar, and M. Yang. "Cardioresponsive Left Ventricular Assist Device." In 2013 39th Annual Northeast Bioengineering Conference (NEBEC). IEEE, 2013. http://dx.doi.org/10.1109/nebec.2013.61.

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Chusri, Yanee, Paweena Diloksumpan, and Phornphop Naiyanetr. "Current left ventricular assist device." In 2013 6th Biomedical Engineering International Conference (BMEiCON). IEEE, 2013. http://dx.doi.org/10.1109/bmeicon.2013.6687730.

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Wu, Yi, Paul Allaire, Milton Adams, Houston Wood, Sonna Patel, and Amy Throckmorton. "Controller Design of Left Ventricle Assist Device." In ASME 2002 International Mechanical Engineering Congress and Exposition. ASMEDC, 2002. http://dx.doi.org/10.1115/imece2002-32252.

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A left ventricle assist device (LVAD) is a device composed mainly of a pump and a controller. It is used not only to save lives of patients who suffer from left ventricle failure, but also to help them live like healthy people. Due to the continuing increasing number of left ventricle heart failure cases and limited number of heart donations for heart transplant, the need for LVADs become more and more demanding.
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Yi, Wu. "Physiological Control of Rotary Left Ventricular Assist Device." In 2007 Chinese Control Conference. IEEE, 2006. http://dx.doi.org/10.1109/chicc.2006.4347618.

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Gupta, Shivam, K. Balakrishnan, and R. Kumar. "Design of a Percutaneous Left Ventricular Assist Device." In 13th International Conference on Biomedical Electronics and Devices. SCITEPRESS - Science and Technology Publications, 2020. http://dx.doi.org/10.5220/0009190702980305.

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Sharma, A. V., R. Chopra, and O. Schwartz. "Simultaneous Left Ventricular Assist Device Insertion and Bullectomy." In American Thoracic Society 2019 International Conference, May 17-22, 2019 - Dallas, TX. American Thoracic Society, 2019. http://dx.doi.org/10.1164/ajrccm-conference.2019.199.1_meetingabstracts.a3513.

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Rosenberg, G., A. J. Snyder, W. J. Weiss, T. J. Cleary, and W. S. Pierce. "A permanent left ventricular-assist device: in vivo testing." In Proceedings of the Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 1988. http://dx.doi.org/10.1109/iembs.1988.94408.

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Stevens, M. C., N. R. Gaddum, M. Pearcy, R. F. Salamonsen, D. L. Timms, D. G. Mason, and J. F. Fraser. "Frank-starling control of a left ventricular assist device." In 2011 33rd Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2011. http://dx.doi.org/10.1109/iembs.2011.6090314.

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Pugovkin, A. A., and D. V. Telyshev. "Automated pediatric cardiovascular simulator for left ventricular assist device evaluation." In 2017 International Siberian Conference on Control and Communications (SIBCON). IEEE, 2017. http://dx.doi.org/10.1109/sibcon.2017.7998543.

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Sorguven, Esra, Namik Ciblak, A. Fethi Okyar, Mehmet A. Akgun, A. Nilufer Egrican, K. Koray Safak, Hojin Ahn, I˙smail Lazoglu, and Suha Kucukaksu. "Flow Simulation and Optimization of a Left Ventricular Assist Device." In ASME 2007 International Mechanical Engineering Congress and Exposition. ASMEDC, 2007. http://dx.doi.org/10.1115/imece2007-41747.

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Abstract:
Artificial assist devices offer a promising treatment option for patients with congestive heart failure, especially when the patient is not eligible for heart transplantation. In order to develop a left ventricular assist device an interdisciplinary research, involving engineering and medical research teams, is conducted. The left ventricular assist device investigated in this study is the MicroMed DeBakey VAD [1], an axial blood pump that provides flow from the left ventricle to the aorta. The geometry of this baseline design is generated via parametric modeling. An optimization surface around the baseline design is formed by using the design of experiments method. Accordingly, eighty parameter sets and the corresponding CAD models are created. Flow through these pumps is simulated at the operation point. Flow data are evaluated to predict the pump performance, blood damage and bearing friction. An axial pump, closer to the optimum, is found that provides 8635 Pa pressure increase at a flow rate of 6 l/min and a rotational speed of 10000 rpm. Pressure head of the selected pump is 18% higher and blood damage is 4% less than the baseline design.
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Reports on the topic "Left venricular assist device"

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Zhang, Bufan, Shaohua Guo, and Zhigang Liu. Less invasive versus conventional left ventricular assist device exchange: A protocol for systematic review and meta-analysis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, August 2021. http://dx.doi.org/10.37766/inplasy2021.8.0110.

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Allen, Larry, Colleen McIlvennan, Jocelyn Thompson, Shannon Dunlay, Shane LaRue, Eldrin Lewis, Chetan Patel, et al. Supporting Shared Decision Making for Patients With Heart Failure Offered a Left Ventricular Assist Device: The DECIDE-LVAD Trial. CDR-1310-06998, April 2020. http://dx.doi.org/10.25302/04.2020.cdr.131006998.

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Allen, Larry, Colleen McIlvennan, Jocelyn Thompson, Shannon Dunlay, Shane LaRue, Eldrin Lewis, Chetan Patel, et al. Supporting Shared Decision Making for Patients With Heart Failure Offered a Left Ventricular Assist Device: The DECIDE-LVAD Trial. Patient-Centered Outcomes Research Institute (PCORI), April 2020. http://dx.doi.org/10.25302/04.2020cdr.131006998.

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