Successful Use of a Paracorporeal Left Ventricular Assist Device in Man

Berger, Robert L.; McCormick, John R.; Stetz, Joseph D.; Klein, Michael D.; Ryan, Thomas J.; Carr, James G.; Sweet, Stephen E.; Bernhard, William F.

doi:10.1001/jama.1980.03300270034026

Cited by 10 publications

(2 citation statements)

References 10 publications

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“…This difficulty could be overcome: the high number of articles in specialist medical journals from the late 1980s onwards suggests that routine MEDLINE searches could signal when the number of papers is increasing (particularly those reporting case studies and case series) and prompt timely discussion with experts. With the exception of a 1980 paper in the Journal of the American Medical Association, 153 There may also have been potential for identifying LVADs via the involvement of the FDA in the USA; Myers 154 reports that clinical studies have been conducted under an investigational device exemption approved by the FDA to evaluate the devices for safety and efficacy. 1970 1973 1975 1977 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 Year No.…”

Section: Lessons For An Ewsmentioning

confidence: 99%

'Early warning systems' for identifying new healthcare technologies.

Robert

Stevens²,

Gabbay³

1999

Health Technology Assessment

111

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Health Technology Assessment is indexed in Index Medicus/MEDLINE and Excerpta Medica/ EMBASE. Copies of the Executive Summaries are available from the NCCHTA web site (see overleaf). NHS R&D HTA Programme T he overall aim of the NHS R&D Health Technology Assessment (HTA) programme is to ensure that high-quality research information on the costs, effectiveness and broader impact of health technologies is produced in the most efficient way for those who use, manage and work in the NHS. Research is undertaken in those areas where the evidence will lead to the greatest benefits to patients, either through improved patient outcomes or the most efficient use of NHS resources. The Standing Group on Health Technology advises on national priorities for health technology assessment. Six advisory panels assist the Standing Group in identifying and prioritising projects. These priorities are then considered by the HTA Commissioning Board supported by the National Coordinating Centre for HTA (NCCHTA). This report is one of a series covering acute care, diagnostics and imaging, methodology, pharmaceuticals, population screening, and primary and community care. It was identified as a priority by the Methodology Panel and funded as project number 94/10/02. The views expressed in this publication are those of the authors and not necessarily those of the Standing Group, the Commissioning Board, the Panel members or the Department of Health. The editors wish to emphasise that funding and publication of this research by the NHS should not be taken as implicit support for the recommendations for policy contained herein. In particular, policy options in the area of screening will be considered by the National Screening Committee. This Committee, chaired by the Chief Medical Officer, will take into account the views expressed here, further available evidence and other relevant considerations. Reviews in Health Technology Assessment are termed 'systematic' when the account of the search, appraisal and synthesis methods (to minimise biases and random errors) would, in theory, permit the replication of the review by others.

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Section: Lessons For An Ewsmentioning

confidence: 99%

'Early warning systems' for identifying new healthcare technologies.

Robert

Stevens²,

Gabbay³

1999

Health Technology Assessment

111

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“…The application of ventricular assist devices for patients with severe congestive heart failure is so important that various ventricular assist devices have been proposed all over the world (1)(2)(3)(4). An implantable type is desirable for quality of life (5)(6)(7)(8)(9).…”

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confidence: 99%

Recent Progress on the Vibrating Flow Pump as a Totally Implantable Ventricular Assist Device

et al. 2001

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This study describes the present state of progress in the development of the vibrating flow pump (VFP) ventricular assist system. We have proceeded with development aiming at a totally implantable ventricular assist system with smaller size and lighter weight appropriate for Asians like the Japanese by increasing the drive frequency. An actuator is important for the development of the miniature sized and lightweight artificial heart. We applied a linear motor for the mechanical part at first. The step motor was applied after that. This form may be best if we want the lightweight small sized motor for an actuator. The cross slider form is applied at present. It succeeded in the miniaturization compared with the linear motor. In the VFP-type ventricular assist system, the blood contact parts are a central vibration tube with inflow and outflow chambers. We designed round diaphragms to prevent thrombus formation. In addition, we developed an energy transmission system for total implantation. The VFP creates a high frequency oscillated blood flow. It has a unique flow pattern. Brain blood flow increased although the total flow of the circulation did not change in the frequency of 25 to 30 Hz. The quantitative evaluation of the autonomic nerve function during the left heart assistance with an oscillated blood flow was carried out by spectral analysis. Some influences on an autonomic nerve were observed by the VFP left heart assistance. We will continue development research with the aim of clinical application.

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Intracorporeal (Abdominal) Left Ventricular Assist Devices or Partial Artificial Hearts

Norman¹

1981

Arch Surg

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Successful Use of a Paracorporeal Left Ventricular Assist Device in Man

Cited by 10 publications

References 10 publications

'Early warning systems' for identifying new healthcare technologies.

'Early warning systems' for identifying new healthcare technologies.

Recent Progress on the Vibrating Flow Pump as a Totally Implantable Ventricular Assist Device

Intracorporeal (Abdominal) Left Ventricular Assist Devices or Partial Artificial Hearts

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