Relevant bibliographies by topics / Heart valve

Academic literature on the topic 'Heart valve'

Author: Grafiati
Published: 4 June 2021
Last updated: 10 March 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Heart valve.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Heart valve"

1

Piper, C. "VALVE DISEASE: Prosthetic valve endocarditis." Heart 85, no. 5 (May 1, 2001): 590–93. http://dx.doi.org/10.1136/heart.85.5.590.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Soler-Soler, J. "VALVE DISEASE: Worldwide perspective of valve disease." Heart 83, no. 6 (June 1, 2000): 721–25. http://dx.doi.org/10.1136/heart.83.6.721.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Otto, C. M. "VALVE DISEASE: Timing of aortic valve surgery." Heart 84, no. 2 (August 1, 2000): 211–18. http://dx.doi.org/10.1136/heart.84.2.211.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Pretre, R. "VALVE DISEASE: Cardiac valve surgery in the octogenarian." Heart 83, no. 1 (January 1, 2000): 116–21. http://dx.doi.org/10.1136/heart.83.1.116.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Iung, B. "VALVE DISEASE: Interface between valve disease and ischaemic heart disease." Heart 84, no. 3 (September 1, 2000): 347–52. http://dx.doi.org/10.1136/heart.84.3.347.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

BATALLA, A. "Mitral valve aneurysm." Heart 84, no. 5 (November 1, 2000): 534. http://dx.doi.org/10.1136/heart.84.5.534.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

KRISHNAMOORTHY, K. M. "Unicuspid aortic valve." Heart 85, no. 2 (February 1, 2001): 217. http://dx.doi.org/10.1136/heart.85.2.217.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Dhakam, S. "Pulmonary valve endocarditis." Heart 89, no. 5 (May 1, 2003): 480. http://dx.doi.org/10.1136/heart.89.5.480.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Cheema, Faisal, Mona Ascha, Mohammad Pervez, Ayesha Mannan, Alex Kossar, and Gianluca Polvani. "Patents and Heart Valve Surgery – III: Percutaneous Heart Valves." Recent Patents on Cardiovascular Drug Discovery 09, no. 999 (January 23, 2014): 1. http://dx.doi.org/10.2174/1574890109666140123121301.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Wolkers, W. "Freeze-dried decellularized heart valves for heart valve replacement." Cryobiology 73, no. 3 (December 2016): 403. http://dx.doi.org/10.1016/j.cryobiol.2016.09.020.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Heart valve"

1

Peacock, J. A. "Heart valve haemodynamics." Thesis, University of Oxford, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.371560.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Tseng, Yuan-Tsan. "Heart valve tissue engineering." Thesis, University of Oxford, 2011. http://ora.ox.ac.uk/objects/uuid:e67c780d-d60f-42e7-9311-dd523f9141b3.

Full text
Abstract:
Since current prosthetic heart valve replacements are costly, cause medical complications, and lack the ability to regenerate, tissue-engineered heart valves are an attractive alternative. These could provide an unlimited supply of immunological-tolerated biological substitutes, which respond to patients' physiological condition and grow with them. Since collagen is a major extra cellular matrix component of the heart valve, it is ideal material for constructing scaffolds. Collagen sources have been shown to influence the manufacturing of collagen scaffolds, and two commercial sources of collagen were obtained from Sigma Aldrich and Devro PLC for comparison. Consistencies between the collagens were shown in the primary and secondary structures of the collagen, while inconsistencies were shown at the tertiary level, when a higher level of natural crosslinking in the Sigma collagen and longer polymer chains in the Devro collagen were observed. These variations were reduced and the consistency increased by introducing crosslinking via dehydrothermal treatment (DHT). Collagen scaffolds produced via freeze-drying (FD) and critical point-drying with cross-linking via DHT or 1-ethyl-3-(3-dimethylaminopropyl) carbodiimide /N-hydroxysuccinimide (EDC/NHS) were investigated. All the scaffolds were compatible with mesenchymal stem cells (MSCs) according to the proliferation of the cells and their ability to produce ECM, without differentiating between osteogenic, chondrogenic or endothelial lineages. The FD EDC/NHS scaffold demonstrated the most suitable physical property of all. This result illustrates that FD EDC/NHS crosslinking is the most suitable scaffold investigated as a start for heart valve tissue engineering. To prepare a scaffold with a controlled local, spatial and temporal delivery of growth factor, a composite scaffold comprising poly (lactic-co-glycolic acid) (PLGA) microspheres was developed. This composite scaffold demonstrated the same compatibility to the MSCs as untreated scaffold. However, the PLGA microspheres showed an increase in the deterioration rate of Young's modulus because of the detachment of the microspheres from the scaffold via cellular degradation.
APA, Harvard, Vancouver, ISO, and other styles
3

Damen, Bas Stefaan, and bsdamen@hotmail com. "Design, Development, and Optimisation of a Culture Vessel System for Tissue Engineering Applications." Swinburne University of Technology. n/a, 2003. http://adt.lib.swin.edu.au./public/adt-VSWT20040512.125051.

Full text
Abstract:
A Tissue Engineering (TE) approach to heart valve replacement has the aim of producing an implant that is identical to healthy tissue in morphology, function and immune recognition. The aim is to harvest tissue from a patient, establish cells in culture from this tissue and then use these cells to grow a new tissue in a desired shape for the implant. The scaffold material that supports the growth of cells into a desired shape may be composed of a biodegradable polymer that degrades over time, so that the final engineered implant is composed entirely of living tissue. The approach used at Swinburne University was to induce the desired mechanical and functional properties of tissue and is to be developed in an environment subjected to flow stresses that mimicked the haemodynamic forces that natural tissue experiences. The full attainment of natural biomechanical and morphological properties of a TE structure has not as yet been demonstrated. In this thesis a review of Tissue Engineering of Heart Valves (TEHVs) is presented followed by an assessment of biocompatible materials currently used for TEHVs. The thrust of the work was the design and development of a Bioreactor (BR) system, capable of simulating the corresponding haemodynamic forces in vitro so that long-term cultivation of TEHVs and/or other structures can be mimicked. A full description of the developed BR and the verification of its functionality under various physiological conditions using Laser Doppler Anemometry (LDA) are given. An analysis of the fluid flow and shear stress forces in and around a heart valve scaffold is also provided. Finally, preliminary results related to a fabricated aortic TEHV-scaffold and the developed cell culture systems are presented and discussed. Attempts to establish viable cell lines from ovine cardiac tissue are also reported.
APA, Harvard, Vancouver, ISO, and other styles
4

Yap, Cheng-Hon. "Factors influencing cryopreserved allograft heart valve degeneration." Connect to thesis, 2006. http://repository.unimelb.edu.au/10187/2120.

Full text
Abstract:
Heart valve replacement is becoming more commonplace in developed nations. Despite this the ideal valve prosthesis has not been found. The allograft valve has been used for over 40 years and remains an important prosthesis with many advantages. However, like other biological valve prosthesis, they have a finite durability. The causes of allograft valve degeneration are still unknown. The study aims to identify factors associated with cryopreserved allograft valve degeneration. Knowledge of such factors will improve our understanding of the potential causes and mechanisms of allograft heart valve degeneration. (For complete abstract open document)
APA, Harvard, Vancouver, ISO, and other styles
5

Anstine, Lindsey J. "Valve cell dynamics in developing, mature, and aging heart valves." The Ohio State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=osu1478692972995079.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Nordquist, Emily M. "Exploring Heart Valve Homeostasis and Repair." The Ohio State University, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=osu1617621956339594.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Lefebvre, Xavier. "Systolic anterior motion of the mitral valve in obstructive hypertrophic cardiomyopathy : an in-vitro study." Diss., Georgia Institute of Technology, 1992. http://hdl.handle.net/1853/11712.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Gieseking, Elizabeth Robinson. "Control mechanism for the papillary muscles of the mitral valve : an In Vitro study." Thesis, Georgia Institute of Technology, 1989. http://hdl.handle.net/1853/10912.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Bishop, Winona F. "Hydrodynamic performance of mechanical and biological prosthetic heart valves." Thesis, University of British Columbia, 1990. http://hdl.handle.net/2429/29461.

Full text
Abstract:
One of the major achievements in cardiac surgery over the past 30 years has been the ability to replace severely diseased heart valves with prosthetic ones. The option of using prosthetic heart valves for the treatment of valvular diseases has improved and prolonged many lives. This is reflected in around 120,000 heart valve replacement operations carried out every year in North America alone to correct the cardiovascular problems of stenosis, insufficiency, regurgitation, etc. The development of artificial heart valves depends on reliable knowledge of the hemodynamic performance and physiology of the cardiovascular system in addition to a sound understanding, at the fundamental level, of the associated fluid mechanics. It is evident from the literature review that noninvasive measurements in a confined area of complex transient geometry, providing critical information relating to valve performance, are indeed scarce. This thesis presents results of an extensive test program aimed at measuring turbulence stresses, steady and transient velocity profiles and their decay downstream of the mitral valve. Three mechanical tilting disc-type heart valves (Björk-Shiley convexo- concave, Björk-Shiley monostrut, and Bicer-Val) and two biological tissue valves (Hancock II and Carpentier-Edwards supraannular) are studied. The investigation was carried out using a sophisticated and versatile cardiac simulator in conjunction with a highly sensitive, noninvasive, two-component three-beam laser doppler anemometer system. The study covers both the steady (valve fully open) and pulsatile (resting heart rate) flow conditions. The continuous monitoring of the parametric time histories revealed useful details of the complex flow as well as helped establish location and timing of the peak parameter values. In addition, orientation experiments are conducted on the mechanical valves in an attempt to reduce stresses by altering the position of the major orifice. The experiments suggest correlation between high stresses and orientation. Based on the the data, the following general conclusions can be made: (i) Hemodynamic test results should be presented in nondimensional form to render them independent of test facilities, flow velocities, size of models, etc. This would facilitate comparison of results by different investigators, using different facilities and test conditions. (ii) The valves tested showed very disturbed flow fields which generated high turbulent stresses presenting a possibility of thromboembolism and, perhaps, haemolysis. (iii) Implantation orientation of the valve significantly affect the mechanical prostheses flow field. The single vortex formation in the posterior orientation results in a reduction in stresses compared to the anterior configuration. (iv) The present results together with the earlier information on pressure drop and regurgitation provide a comprehensive and organized picture of the valve performance. (v) The information is fundamental to the improvement in valve design, and development of guidelines for test methodology and acceptable performance criteria for marketing of the valves.
Applied Science, Faculty of
Mechanical Engineering, Department of
Graduate
APA, Harvard, Vancouver, ISO, and other styles
10

Jimenez-Mejia, Jorge Hernan. "The loading and function of the mitral valve under normal, pathological and repair conditions : an in vitro study /." Diss., Available online, Georgia Institute of Technology, 2006, 2006. http://etd.gatech.edu/theses/available/etd-11102006-003456/.

Full text
Abstract:
Thesis (Ph. D.)--Biomedical Engineering, Georgia Institute of Technology, 2007.
Ajit Yoganathan, Committee Chair ; Thomas Vassiliades, Committee Member ; Joseph Gorman, Committee Member ; Marc Levenston, Committee Member ; John N. Oshinski, Committee Member.
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Heart valve"

1

Pathology of heart valve replacement. Lancaster: MTP Press, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
2

K, Starek Peter J., ed. Heart valve replacement and reconstruction: Clinical issues and trends. Chicago: Year Book Medical Publishers, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

Zamorano, Jose, Patrizio Lancellotti, Luc Pierard, and Philippe Pibarot, eds. Heart Valve Disease. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-23104-0.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Dominik, Jan, and Pavel Zacek. Heart Valve Surgery. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-12206-4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Love, Jack. Autologous tissue heart valves. Austin: R.G. Landes Co., 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Carlos, Gomez-Duran, Reul George J, and St Jude Medical Inc, eds. Indications for heart valve replacement by age group. Boston: Kluwer Academic Publishers, 1989.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

1932-, Dalen James E., and Alpert Joseph S, eds. Valvular heart disease. 2nd ed. Boston: Little, Brown, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

H, Greenberg Barry, and Murphy Edward MD, eds. Valvular heart disease. Littleton, Mass: PSG Pub. Co., 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

E, Dalen James, and Alpert Joseph S. 1942-, eds. Valvular heart disease. 2nd ed. Boston: Little, Brown, 1987.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
10

H, Peels C., and Baur L. H. B, eds. Valve surgery at the turn of the millenium. Boston: Kluwer Academic, 2004.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Book chapters on the topic "Heart valve"

1

Schievano, Silvia, Andrew M. Taylor, and Philipp Bonhoeffer. "Percutaneous Pulmonary Valve Implantation: The First Transcatheter Valve." In Heart Valves, 211–26. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-6144-9_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

John, Ranjit, and Kenneth Liao. "Heart Valve Disease." In Heart Valves, 121–58. Boston, MA: Springer US, 2013. http://dx.doi.org/10.1007/978-1-4614-6144-9_6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Aberle, Corinne M., Chrisita L. Powlett, and Jennifer R. Cozart. "Valve Prosthesis." In Valvular Heart Disease, 223–35. London: Springer London, 2019. http://dx.doi.org/10.1007/978-1-4471-2840-3_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Bokros, Jack. "Valve Design." In Heart of Carbon, 141–52. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-17933-4_20.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

B. Chambers, John. "Heart valve disease and prosthetic heart valves." In Acute Medicine - A Practical Guide to the Management of Medical Emergencies, 5th Edition, 328–32. Chichester, UK: John Wiley & Sons, Ltd, 2017. http://dx.doi.org/10.1002/9781119389613.ch51.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Fioretta, Emanuela S., Sarah E. Motta, Eric K. N. Gähwiler, Nikolaos Poulis, Maximilian Y. Emmert, and Simon P. Hoerstrup. "Heart Valve Bioengineering." In Organ Tissue Engineering, 1–59. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-18512-1_4-1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

John, Ranjit, and Kenneth K. Liao. "Heart Valve Disease." In Handbook of Cardiac Anatomy, Physiology, and Devices, 527–49. Totowa, NJ: Humana Press, 2009. http://dx.doi.org/10.1007/978-1-60327-372-5_31.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Gallegos, Robert P., and R. Morton Bolman. "Heart Valve Disease." In Handbook of Cardiac Anatomy, Physiology, and Devices, 385–404. Totowa, NJ: Humana Press, 2005. http://dx.doi.org/10.1007/978-1-59259-835-9_27.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Rabkin-Aikawa, Elena, John E. Mayer, and Frederick J. Schoen. "Heart Valve Regeneration." In Advances in Biochemical Engineering/Biotechnology, 141–79. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/b100003.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Badano, Luigi P., and Rosa Sicari. "Heart Valve Prostheses." In The ESC Textbook of Cardiovascular Imaging, 177–203. London: Springer London, 2010. http://dx.doi.org/10.1007/978-1-84882-421-8_9.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Conference papers on the topic "Heart valve"

1

Koymen, H., A. Baykal, and Z. Ider. "Comparative time domain modelling of natural heart valve and mechanical heart valve sounds." 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.1988.94465.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Zadeh, Parnian Boloori, Hamid N.-Hashemi, Scott C. Corbett, and Ahmet U. Coskun. "Calcification of Trileaflet Polyurethane Heart Valve." In ASME 2010 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2010. http://dx.doi.org/10.1115/sbc2010-19486.

Full text
Abstract:
Heart valve disease is a common type of cardiac disease that causes a large number of mortalities worldwide. Patients with severe heart valve problems are required to undergo heart valve replacement surgeries. Mechanical and bioprosthetic heart valves are the current available prostheses for patients in need of a heart valve replacement surgery. Mechanical heart valves are susceptible to thromboembolism and thrombosis and bioprosthetic valves have a limited life-span because of leaflet wear and calcification. Different polyurethane valves were suggested as an alternative material. However, prior results indicated that tested polyurethanes failed due to calcification. The mechanism for polyurethane calcification is not yet completely understood. Kou Imachi et al. [2], suggested that the calcification is due to entrapment of blood proteins and/or phospholipids in microgaps in the polymer and subsequent attraction of Ca ion, leading to formation of calcium phosphate (Ca3(PO4)2). Bisphosphonates (BP), which are considered to enhance the calcification resistance of polymers once covalently bonded to the material, indicated promising results in some studies. Focus of the present study is the trileaflet polyurethane valve, originally developed in the design of the AbioCor® replacement heart, and has demonstrated excellent durability and hemocompatibility in clinical evaluation. Over the past three years, this valve has been modified and its potential as a replacement valve have been studied [1]. Valve hemodynamic analysis showed that it is comparable to bioprosthetic valve in terms of fluid flow, pressure drop and regurgitation [1]. In order to ensure the suitability of the trileaflet polyurethane valve as a replacement valve its fatigue and calcification resistance are studied. The purpose of this paper is to simulate calcification of trileaflet polyurethane valves in an in vitro accelerated test and compare that with that of tissue valves. Furthermore the effect of bisphosphonate modified polyurethane on calcification is studied.
APA, Harvard, Vancouver, ISO, and other styles
3

Syedain, Zeeshan, Lee Meier, Jay Reimer, and Robert Tranquillo. "Novel Tissue-Engineered Heart Valve." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14783.

Full text
Abstract:
Tissue-engineered heart valves (TEHV) have the potential to revolutionize valve replacements therapies, especially for pediatric patients. While much progress has been made toward implanting a TEHV, a major limitation to date has been in vivo leaflet retraction due to the contractile nature of the cells transplanted within the TEHV. This phenomenon has been problematic in numerous studies, particularly for approaches employing the use of a fibrin scaffold (Syedain et al. 2011, Flanagan et al. 2009). Additional challenges in the development of a TEHV include designing a 3D mold that allows for proper coaptation and functionality of engineered leaflets. Herein, we present a novel approach for developing a TEHV from a decellularized engineered tube fabricated from fibrin that is remodeled by entrapped dermal fibroblasts, and matured using a custom pulse flow-stretch bioreactor. This approach has the potential to deliver an off-the-shelf engineered heart valve that exhibits the ability to be readily recellularized in contrast to current clinically employed tissue-based valve replacements.
APA, Harvard, Vancouver, ISO, and other styles
4

K. Kar, Kamal, and Mridul Bharadwaj. "Artificial Heart Valve Testing Setup." In Proceedings of the International Conference on Nanotechnology for Better Living. Singapore: Research Publishing Services, 2016. http://dx.doi.org/10.3850/978-981-09-7519-7nbl16-rps-287.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Johansen, Peter, Tina S. Andersen, J. Michael Hasenkam, Hans Nygaard, and Peter K. Paulsen. "Mechanical heart valve cavitation in patients with bileaflet valves." In 2014 36th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2014. http://dx.doi.org/10.1109/embc.2014.6944910.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Schneeberger, Y., A. Schaefer, N. Schofer, F. Deuschl, J. Schirmer, S. Blankenberg, D. Westermann, H. Reichenspurner, U. Schaefer, and L. Conradi. "Balloon- and Mechanical-Expandable Transcatheter Heart Valves for Mitral Valve-in-Valve and Valve-in-Ring Procedures." In 48th Annual Meeting German Society for Thoracic, Cardiac, and Vascular Surgery. Georg Thieme Verlag KG, 2019. http://dx.doi.org/10.1055/s-0039-1679001.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Schoephoerster, Richard T., Siobhain Gallocher, Leonard Pinchuk, and Vladimir A. Kasyanov. "A Novel Trileaflet Synthetic Heart Valve." In ASME 2001 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2001. http://dx.doi.org/10.1115/imece2001/bed-23112.

Full text
Abstract:
Abstract Heart valve prostheses have been used successfully since 1960 and generally result in improvement in the longevity and symptomatology of patients with valvular heart disease. However, NIH’s Working Group on Heart Valves reports that 10-year mortality rates still range from 30–55%, and that improvements in valve design are required to minimize thrombotic potential and structural degradation and to improve morbidity and mortality outcomes.
APA, Harvard, Vancouver, ISO, and other styles
8

Stepan, Lenka, Daniel Levi, and Gregory Carman. "A Thin Film Nitinol Heart Valve." In ASME 2004 International Mechanical Engineering Congress and Exposition. ASMEDC, 2004. http://dx.doi.org/10.1115/imece2004-60850.

Full text
Abstract:
In order to create a less thrombogenic heart valve with improved longevity, a prosthetic heart valve was developed using thin film nitinol (NiTi). A “butterfly” thin film NiTi valve was constructed using a single, elliptical piece of thin film NiTi and a scaffold made from Teflon tubing and NiTi wire. Flow tests and pressure readings across the valve were performed in vitro in a pulsatile flow loop. Biocorrosion experiments were conducted on untreated and passivated thin film nitinol. To determine the material’s in vivo biocompatibility, thin film nitinol was implanted in a pig using a stent covered with thin film NiTi. Flow rates and pressure tracings across the valve were comparable to those through a commercially available 19 mm Perimount Edwards tissue valve. No signs of corrosion were present on samples of thin film nitinol after immersion in Hank’s solution for 1 month. Finally, organs and tissue samples explanted from the pig 17 days after thin film NiTi implantation appeared without disease, and the thin film nitinol itself was without thrombus formation or endothelialization. Although long term testing will be needed, thin film NiTi may be very well suited for use in artificial heart valves.
APA, Harvard, Vancouver, ISO, and other styles
9

Siyao Huang and Hsiao-Ying S. Huang. "Virtual experiments of heart valve tissues." In 2012 34th Annual International Conference of the IEEE Engineering in Medicine and Biology Society (EMBC). IEEE, 2012. http://dx.doi.org/10.1109/embc.2012.6347518.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Sacks, Michael S. "Biomechanics of engineered heart valve tissues." In Conference Proceedings. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2006. http://dx.doi.org/10.1109/iembs.2006.259756.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Heart valve"

1

Runjic, Frane, Andrija Matetic, Matjaz Bunc, Nikola Crncevic, and Ivica Kristic. Small Degenerated Surgical Bioprosthetic Valve should be Treated with SupraAnnular Valve-in-Valve Transcatheter Aortic Valve Replacement. Science Repository, December 2021. http://dx.doi.org/10.31487/j.jicoa.2021.04.02.

Full text
Abstract:
Background: Patient-prothesis mismatch (PPM) is a serious potential complication following surgical aortic valve replacement (SAVR). If it develops, valve-in-valve transcatheter aortic valve replacement (TAVR) is a reasonable therapeutic option. However, there is low evidence on the management of small degenerated surgical bioprosthetic valves, not prone to balloon-valve fracture (BVF). Case Presentation: This case report presents a successful valve-in-valve TAVR in acute heart failure due to degenerative surgical bioprosthetic valve Trifecta (21 mm) that is not susceptible to BVF. Standard preparation for transfemoral TAVR with a self-expandable valve was conducted, including the over-the-wire pacing. Thereafter, a successful valve-in-valve primary implantation of the self-expanding, supra-annular valve Evolut R 26 (Medtronic™) has been achieved. Follow-up at 3 months showed mild paravalvular leak in the region with clinical and heart function improvements of the patient. Follow-up echocardiographic parameters showed the reduction of anterograde flow impairment and improved effective orifice area (~0.85 cm2/m2). Conclusion: In conclusion, supra-annular valve-in-valve TAVR is a potential therapeutic option for PPM of small degenerated surgical bioprosthetic valves which are not prone to BVF.
APA, Harvard, Vancouver, ISO, and other styles
2

Mullenhoff, C. Signal processing of Shiley heart valve data for fracture detection. Office of Scientific and Technical Information (OSTI), September 1993. http://dx.doi.org/10.2172/10190125.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Mullenhoff, C. Signal processing of Shiley heart valve data for fracture detection. Office of Scientific and Technical Information (OSTI), April 1993. http://dx.doi.org/10.2172/10177267.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Axelrod, M. C., G. A. Clark, and D. Scott. Classification of heart valve sounds from experiments in an anechoic water tank. Office of Scientific and Technical Information (OSTI), June 1999. http://dx.doi.org/10.2172/10788.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Axelrod, M. C., G. A. Clark, and D. Scott. Classification of heart valve sounds from experiments in an anechoic water tank. Office of Scientific and Technical Information (OSTI), June 1999. http://dx.doi.org/10.2172/10789.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Candy, J. V. LLNL heart valve condition classification project anechoic testing results at the TRANSDEC evaluation facility. Office of Scientific and Technical Information (OSTI), October 1999. http://dx.doi.org/10.2172/9649.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Aleksandrov, A. V., L. N. Shilova, I. Yu Alekhina, N. V. Aleksandrova, N. V. Nikitina, and E. V. Benedickaya. COMBINED USE OF IMMUNOLOGICAL AND ULTRASOUND METHODS OF ESTIMATION OF VALVE HEART STATUS IN PATIENTS WITH INFLAMMATORY RHEUMATIC DISEASES. Планета, 2018. http://dx.doi.org/10.18411/978-5-907109-24-7-2018-xxxv-14-18.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

AlBakri, Aref, Auswaf Ahsan, Manoj Vengal, KR Ashir, Abdul Majeed, and Hanan Siddiq. Antibiotic Prophylaxis before Invasive Dental Procedures for Patients at High-Risk of Infective Endocarditis. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, July 2022. http://dx.doi.org/10.37766/inplasy2022.7.0011.

Full text
Abstract:
Review question / Objective: The aim of the present systematic review and meta-analysis is to determine whether there is a genuine clinical need for Antibiotic Prophylaxis(AP) for the prevention of Infective Endocarditis(IE) in high-risk individuals (particularly those with demonstrable structural heart diseases or valve surgery) undergoing invasive dental procedures. Information sources: PubMed, Science Direct, British Dental Journal and Cochrane Register of Controlled Trials. Search terms used included various combinations of the following subject headings and title or abstract keywords – prophylactic antibiotics, antibiotic prophylaxis, antimicrobial, dentist, extraction, implant, infective endocarditis, or bacterial endocarditis.
APA, Harvard, Vancouver, ISO, and other styles
9

liao, xiaoqian, xingyu fan, ziyi wang, shumin huang, and zhixi hu. Prognostic value of heart-type fatty acid binding protein in heart failure: a systematic review protocol. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, March 2022. http://dx.doi.org/10.37766/inplasy2022.3.0126.

Full text
Abstract:
Review question / Objective: (1)Can heart type fatty acid binding protein effectively predict the prognosis of patients with heart failure? (2)Is high expression of ear type fat acid binding protein associated with poor clinical outcomes in patients with heart failure? Condition being studied: Heart-type fatty acid binding protein (H-FABP) mainly exists in cardiomyocytes and is a potential biomarker of myocardial injury.However, the adverse consequences of heart failure have not been fully analyzed.Therefore, the purpose of this study was to comprehensively evaluate the correlation between H-FABP and the prognosis of heart failure through meta-analysis.
APA, Harvard, Vancouver, ISO, and other styles
10

Hern, P. J. Heat Treat of 3Z Valve Piston. Office of Scientific and Technical Information (OSTI), April 1999. http://dx.doi.org/10.2172/6020.

Full text
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Heart valve' for particular source types:
Journal articles Dissertations / Theses Books
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography