Relevant bibliographies by topics / TAVR

Contents

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

Academic literature on the topic 'TAVR'

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

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Journal articles on the topic "TAVR"

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Cheng, Tsung O. "Is It TAVI or TAVR?" International Journal of Cardiology 175, no. 2 (August 2014): 222–23. http://dx.doi.org/10.1016/j.ijcard.2014.05.006.

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Thourani, Vinod H., J. James Edelman, and Christopher U. Meduri. "TAVR in TAVR." Journal of the American College of Cardiology 75, no. 16 (April 2020): 1894–96. http://dx.doi.org/10.1016/j.jacc.2020.03.017.

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Rogers, Toby, Jaffar M. Khan, Lowell F. Satler, Adam B. Greenbaum, and Robert J. Lederman. "TAVR-in-TAVR?" Journal of the American College of Cardiology 76, no. 8 (August 2020): 1003. http://dx.doi.org/10.1016/j.jacc.2020.05.083.

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Khan, Arshan, Muhammad Nadeem, Abhirami Shankar, Muhammad Haseeb ul Rasool, Muhammad Haseeb, Muhammad Ammar, and Abdul Wasay. "The Use of Antiplatelet and Anticoagulation After TAVR: A Brief Review of Important Literature." International Journal of Medical Science and Clinical Invention 11, no. 06 (June 4, 2022): 6134–40. http://dx.doi.org/10.18535/ijmsci/v9i06.02.

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Aortic stenosis is the most common valvular heart disease in the elderly patient population. Surgical aortic valve replacement (SAVR) has been the standard of practice for treating aortic stenosis for years. But recently in the past decade, the minimally invasive procedure Transcatheter aortic valve replacement/implantation (TAVR/TAVI) has been a revolutionary treatment modality for aortic stenosis patients, particularly those who are at high risk of surgery. The patients who undergo TAVR are at high risk for bleeding and thromboembolic events afterward. The use of antiplatelet and anticoagulation after TAVR is to decrease the risk of thromboembolic complications such as stroke, but it comes with the risk of bleeding associated with antiplatelet and antithrombotic. Current guidelines recommend the use of dual antiplatelet (DAPT) for 3 to 6-month after TAVR in the absence of an indication for oral anticoagulation followed by lifelong single antiplatelet therapy (SAPT). However, the use of dual antiplatelet is associated with an increased risk of bleeding without significant ischemic benefits. Lifelong oral anticoagulation is recommended for patients who have other indications for anticoagulation. These treatment guidelines are driven by expert opinion, given the lack of large randomized control trials (RCT). In this review, we aim to discuss the need for antithrombotic and antiplatelets after TAVR and review important literature about current practice and expert recommendations about antiplatelet and anticoagulation after TAVR.
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Bernardi, Fernando Luiz de Melo, and Henrique Barbosa Ribeiro. "TAVR." JACC: Cardiovascular Interventions 12, no. 8 (April 2019): 778–80. http://dx.doi.org/10.1016/j.jcin.2019.02.048.

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Guedeney, Paul, and Jean-Philippe Collet. "TAVR." JACC: Cardiovascular Interventions 13, no. 22 (November 2020): 2667–69. http://dx.doi.org/10.1016/j.jcin.2020.09.025.

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Singh, Satinder P., Oluseun Alli, Spencer Melby, Massoud Lessar, Mark Sasse, Julian Booker, and James Davies. "TAVR." Journal of Thoracic Imaging 30, no. 6 (November 2015): 359–77. http://dx.doi.org/10.1097/rti.0000000000000175.

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King, Spencer B. "TAVR." JACC: Cardiovascular Interventions 9, no. 21 (November 2016): 2264–65. http://dx.doi.org/10.1016/j.jcin.2016.09.046.

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Carabello, Blase A. "TAVR." JACC: Cardiovascular Interventions 9, no. 24 (December 2016): 2555–56. http://dx.doi.org/10.1016/j.jcin.2016.10.015.

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Conti, C. Richard. "To TAVR or Not to TAVR." Cardiovascular Innovations and Applications 2, no. 3 (May 1, 2017): 403–5. http://dx.doi.org/10.15212/cvia.2016.0053.

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Dissertations / Theses on the topic "TAVR"

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Nai, Fovino Luca. "Coronary access after transcatheter aortic valve replacement." Doctoral thesis, Università degli studi di Padova, 2019. http://hdl.handle.net/11577/3424785.

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Coronary artery disease (CAD) and aortic stenosis (AS) often coexist. While the clinical impact of CAD on subjects with AS undergoing transcatheter aortic valve replacement (TAVR) is controversial, current guidelines suggest revascularization of proximal severe CAD before TAVR. This recommendation is mainly based on concerns about the possibility to reaccess the coronary arteries once the transcatheter heart valve (THV) is in place. In fact, previous case series report challenges in cannulation of coronary ostia after TAVR, particularly with self-expandable THVs. These aspects are important as indication to TAVR is moving towards younger patients, who are more likely to need CA, giving the progressive nature of CAD and their longer life expectancy. The first objective of our research was to assess the incidence of coronary access (CA) after TAVR at long-term follow up in a high-volume center, evaluating safety and feasibility of coronary angiography and percutaneous coronary intervention (PCI) after TAVR with different types of THVs. At a median follow up over 3 years, incidence of CA after TAVR was 5.3%. In one out of three patients, indication to CA was an acute coronary syndrome, and PCI was performed in over half of the cases. Independent predictors of CA after TAVR were younger age, previous PCI and CABG. CA of both vessels was feasible in all patients with an intra-annular THV, while the right coronary artery was not engaged in two patients with a supra-annular THV. PCI was successful in all but one case. All-cause mortality tended to be higher for patients needing CA for acute coronary syndrome. Secondly, we evaluated advantages and pitfalls of CA after TAVR in the presence of bicuspid aortic valve (BAV) stenosis. We performed post-TAVR 3-dimensional computed tomography in patients with BAV treated both with balloon-expanding and self-expandable THVs. In this particular anatomical setting, CA after TAVR as advantages and pitfalls. For instance, the potential asymmetrical prosthesis expansion when the rafe is located between the left and right coronary cusp generates a larger free space between the valve frame and the coronary ostia, thereby simplifying CA. On the contrary, the higher implantation of the THV in the setting of BAV represents a potential challenge for CA. Finally, we aimed to assess the feasibility of CA after TAVR-in-TAVR. In fact, as TAVR indication is moving towards patients with longer life expectancy, THV degeneration will be increasingly common. TAVR-in-TAVR is an appealing therapeutic option in this setting, but concerns have been raised about the risk of acute coronary obstruction and the possibility to re-access the coronaries once the second prosthesis is in place. In fact, when the second THV is implanted, the leaflets of the first prosthesis are displaced vertically, creating a cylindric cage which will impair CA and possibly coronary flow. Consequently, there is a risk plane under which the first valve frame will not be crossable after TAVR-in-TAVR. We therefore developed a novel, imaging-based algorithm to predict possible coronary access impairment after TAVR-in-TAVR, based on the way CA is gained after the index TAVR and on the distance between prosthesis frame and aortic wall under the level of the RP. We then tested our hypothesis by performing coronary angiography after TAVR in 137 consecutive patients. According to our algorithm, CA after TAVR-in-TAVR might be impaired in almost 1/3 of patients currently treated by TAVR. This risk appears to be less frequent with intra-annular SAPIEN 3 as compared to supra-annular Evolut R/Pro and Acurate Neo THVs. Implantation of a supra-annular device, female gender and small sino-tubular junction are independent predictors of possible CA impairment after TAVR-in-TAVR. These results, which will need to be validated in clinical practice, are important for patient counseling and prosthesis selection in subjects with longer life expectancy
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Alkhalil, Ahmad. "Outcomes Of Early Versus Late Discharge In Transfemoral Transcatheter Aortic Valve Replacement Via Minimally Invasive Strategy: A Propensity-Matched Analysis." Case Western Reserve University School of Graduate Studies / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=case1465592493.

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Hatoum, Hoda. "Fluid Mechanics of Transcatheter Aortic Valve Replacement." The Ohio State University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=osu1541781379381912.

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Janicki, Andrew Joseph. "ANALYSIS OF PARTICLES THOROUGH THE AORTIC ARCH DURING TRANSCATHETER AORTIC VALVE REPLACEMENT." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1448.

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Ischemia caused by particles becoming dislodged during transcatheter aortic valve replacement (TAVR) is a possible complication of TAVR. The particles that become dislodged can travel out of the aortic valve, into the aortic arch, and then into either the brachiocephalic artery, the left common carotid artery, the left subclavian artery or continue into the descending aorta. If the particles continue into the descending aorta it poses no risk of causing ischemia however if it travels into the other arteries then it increases the possibility of the particle causing an ischemic event. The goal of this study is to determine what parameters cause the particle to enter one artery over another. The parameters analyzed are the particle diameter, the particle density, the blood pressure, and the diameter of the catheter used in the surgery. This was done by creating a finite element model in COMSOL Multiphysics® to track the particles flowing through a scan of an actual aortic arch. It was determined that the particle diameter, particle density, and the blood pressure affect which artery the particles take to exit the aortic arch. However the diameter of the surgical catheter used in a transaortic approach is not statistically significant when determining which artery the particles will exit. The study shows that larger diameter particle would lead to a higher transmissions probability into the brachiocephalic artery, the left common carotid artery, and the left subclavian artery while a smaller diameter particle would have a higher transmission probability for the descending aorta. Averaging all particle diameters, densities and blood pressure found that 54.95 ± 13.66% of the particles released will travel into the cerebral circulatory system.
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Salaun, Erwan. "Imagerie multimodale en cardiologie : application à la surveillance des bioprothèses aortiques." Thesis, Aix-Marseille, 2018. http://www.theses.fr/2018AIXM0722/document.

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L’incidence et la prévalence des maladies valvulaires sont en augmentation, l’épidémiologie de ces maladies se modifie avec une prépondérance des maladies dégénératives, et le traitement considéré est le plus souvent le remplacement valvulaire prothétique, notamment dans le cadre de la sténose aortique qui est la maladie valvulaire la plus fréquente. Les techniques de remplacement valvulaire et les prothèses valvulaires ont grandement évolué ces dernières années, notamment avec le développement des implantations de prothèses par voie percutanée. Cependant les substituts valvulaires aortiques biologiques sont exposés à des complications diverses mettant en jeu la fonction de la prothèse : fuite péri-prothétique, endocardite infectieuse, dégénérescence des tissus biologiques. Ces complications restent des challenges diagnostiques et l’échographie est l’imagerie de référence. Cependant, l’imagerie cardiaque et valvulaire a réalisé de grands progrès, et l’utilisation d’autres techniques ou modalités d’imagerie peut être une alternative ou un complément à l’exploration par échocardiographie : imagerie par scanner, imagerie par résonance magnétique, imagerie nucléaire. Le recours et la combinaison de ces différentes techniques s’intègrent dans une approche globale, nommée imagerie multimodale. L’objectif général de ce projet de doctorat a été d’étudier l’apport de l’imagerie multimodale dans la surveillance des bioprothèses aortiques et l’évaluation des complications et de la dégénérescence structurelle qui peuvent survenir
The incidence and prevalence of heart valve diseases are increasing worldwide. Their epidemiology also changes, and the required treatment is most often a prosthetic valve replacement, especially for aortic stenosis that is the most frequent heart valve disease. Techniques of valve replacement as well as prosthesis themselves have dramatically evolved in recent years, especially with the development of percutaneous transcatheter procedures. However, biologic aortic valve substitutes are at risk of several complications including prosthetic valve dysfunction, paravalvular regurgitation, infective endocarditis and structural valve deterioration. Correctly diagnose any of these complications still is a challenge but echocardiography plays a pivotal role and remains the gold-standard as per diagnostic imaging. Nonwithsanding the fact that echocardiography is the main imaging modality for valvular anomalies, great progress has been made in cardiac imaging and modalities like CT-Scan, MRI and nuclear imaging are nowadays regularly used along with echocardiography. The use and combination of these different techniques are part of a global approach, entitled multi-modality imaging.The general objective of this doctoral project was to study the contribution of the multi-imaging approach in the assessment of the bioprosthesis function and screening for complications and structural valve deterioration that may occur
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Heitkemper, Megan. "The Development of Computational Methods and Device Design Considerations Towards Improving Transcatheter Heart Valve Engineering." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1595406932637358.

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Ivgren, Claes. "Jag tar risken! Vad tar jag då?" Thesis, Försvarshögskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:fhs:diva-1426.

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Risk är en del av all mänsklig aktivitet. Att förutsäga det okända och det som kanske inträffar harvarit ett problem som mänskligheten funderat kring från antiken och framåt. Att finna en förklaringsmodelleller en metod för att med en sannolikhet gränsande till visshet kunna skaffa sig insikti morgondagen har varit och är alltjämt en stor utmaning. Det här arbetet syftar till att skapa klarheti begreppet risk och sätta det i relation till hur Försvarsmakten hanterar bedömningen av riskidag. Uppsatsen täcker den idéhistoriska utvecklingen av begreppet från de klassiska filosofernatill modern tid. För att vidga perspektivet och skapa förståelse för bedömandeprocessen berörs detkognitiva skeendet vid beslutsfattning och några av de fallgropar som är kända. Med denna begreppsförankringsom grund analyseras Försvarsmaktens riskhanteringsmodell i relation till andramotsvarande modeller. Fördelar och nackdelar påvisas. Avslutningsvis finns en rekommendationtill utveckling av modellen för att bättre svara mot de krav på säkerhet som det expeditionära insatsförsvaretkräver. Det är författarens förhoppning att efter läsning av uppsatsen skall läsaren hautvecklat sin personliga uppfattning och sitt medvetande om risk och riskhantering.
Risk is a part of all human activity. To be able to predict the unknown has been a problem of mankind since the ancient Greeks and forward in history. To find a model or method in order to foreseetomorrow with a probability close to certainty has been and is still a big challenge. The purposeof this paper is to clarify the concept of risk and put it in relation to how it is used in theSwedish Armed Forces to day. This essay covers the history of ideas of risk from ancient historyto modern times. To widen the conception and create un understanding of the process of decisionmaking, a part of the paper deals with the cognitive process and some of the common pitfallswithin it. With this foundation in the concept of risk the Swedish Armed Forces model are scrutinizedand compared to other models alike. The pros and cons are described. Finally some suggestionsto develop the model are given in order to make it a valuable tool in support of the new expeditionaryarmed forces. It is the author’s ambition that this essay will contribute to the readerspersonal knowledge about risk and risk management.
Avdelning: ALB - Slutet Mag 3 C-upps. Hylla: Upps. ChP 06-08
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Weston, Peter. "Tar destruction in a Coandă tar cracker." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/8241/.

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Increasing the utilisation of bioenergy systems has the potential to become a vital component in the struggle to maintain and fulfil global energy demands. In particular, biomass gasification can offer a solution to the ‘Energy Trilemma’, and provide an affordable, reliable and carbon neutral technology. The limiting factor hampering the progression of biomass gasification power plants is tar. Tars formed during the thermal breakdown of biomass, condense and foul downstream equipment, causing reliability issues and damaging energy conversion equipment, such as engines and turbines. Treating tar through partial oxidation offers tar destruction without waste and soot, as well as maintaining the heating value of the tar in the producer gas. Coandă burners which are fuelled by more conventional fuels have been proven to operate close to, and below, stoichiometric conditions; as such, these devices were prime for further investigation. The main objective of this research project was to develop a small-scale system which utilises a novel Coandă burner for tar destruction. An experimental rig consisting of a wood pellet pyrolyser, which produced a gas loaded with tar, and a Coandă tar cracker, was designed, constructed and operated in order to determine the effectiveness of the process, with respect to tar reduction. The principal experimental program was divided into two phases, so that comparisons of the tar composition, before and after treatment, could be formed. In the first experimental phase, wood pellets were pyrolysed at a range of temperatures between 500 and 800ºC. The pyrolysis products (gas, tar and char) were analysed. As the pyrolysis temperature increased from 500 to 800ºC there was a decrease in the yield of gravimetric tar in the sampled gas from 78.59 to 16.55 g/Nm3. In the second phase the tarry gas was treated by the Coandă tar cracker. The Coandă tar cracker was shown to be effective at significantly reducing the tar content in the product gas. The yield of key tar components in the treated gas was reduced for all tested pyrolysis temperatures. For example; when the pyrolysis temperature was 800ºC; the yields of benzene, toluene and naphthalene were reduced by over 90% and the gravimetric tar yield by 88%. The success of the tar cracker can be attributed to the high flame temperature (>1000ºC) and the addition of oxygen which leads to the production of a greater proportion of radicals in the flame which initiate tar destruction reactions.
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Convelbo, Channing. "Mise au point de nouvelles méthodes d’analyse du traumatisme valvulaire des bioprothèses percutanées." Thesis, Paris Est, 2017. http://www.theses.fr/2017PESC0010/document.

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Le remplacement valvulaire aortique percutané (TAVI) est une thérapie qui s’impose de plus en plus chez les patients porteurs d’une sténose aortique sévère. Toutefois, un nombre croissant d’études démontre que l’utilisation, crimping (sertissage) et déploiement, de ces bioprothèses est induit une altération de la structure de leurs feuillets péricardiques. Ce qui soulève la question de la durabilité à long-terme de ces dispositifs.Dans les travaux de cette thèse, nous avons développé des outils permettant d’analyser le traumatisme subi par les feuillets de péricardes.La première stratégie visait à déterminer les différences de comportements des péricardes bovins et porcins en matière de diffusion vis à vis de différents solutés. Nous avons pu mettre en évidence que la perméabilité du péricarde porcin était plus élevée (en moyenne 5-fois) et plus hétérogène comparativement à celle du péricarde bovin. La seconde stratégie consistait à caractériser, à l’aide des outils développés, les lésions traumatiques induites lors du déploiement des prothèses auto-expansible ou déployable par inflation d’un ballon. Quelque soit le type de prothèses utilisées, une altération de la perméabilité membranaire des péricardes a été observée après leurs déploiements.La dernière stratégie était de déterminer si le crimping de bioprothèses auto-expansibles pouvait entrainer une calcification plus importante des feuillets péricardiques. Un modèle d’évaluation de la calcification in-vivo chez le lapin a été utilisé. Cette étude à permis d’observer que le taux de calcium ainsi que la minéralisation du péricarde n’étaient pas affectées par le crimping
Transcatheter aortic valve replacement (TAVR) is a growing therapy indicated to treat severe aortic valve stenosis. However, an increasing number of studies demonstrated that crimping and deployment of these bioprostheses induce structural alterations of the pericardial leaflets. These observations raise interrogations concerning the long-term durability of these devices.In this thesis works, we developed tools to analyze pericardial leaflets injuries.The first strategy consisted to determine the differences between bovine and porcine pericardium toward the filtration of various solute.It was possible to observe that porcine pericardium hydraulic conductance was higher (5-folds) and more heterogeneous than bovine pericardium.The second strategy consisted to characterize the lesions induced by deployment of self and balloon expandable valved-stents.After deployment, both types of valved-stents showed an alteration of their pericardial hydraulic conductance.The last strategy was to determine if self-expandable valved-stents crimping could increase their pericardial leaflets calcification. The rabbit model was used as an in-vivo evaluation model.This study showed that the calcium concentration and the mineralization of their pericardial leaflets were unaffected by valved-stents crimping
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Svensson, Lina. "Tar Empatin slut?" Thesis, Malmö universitet, Fakulteten för hälsa och samhälle (HS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-26246.

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Svensson, L. Tar empatin slut? En litteraturstudie om empatitrötthet. Examensarbete i omvårdnad 15 högskolepoäng. Malmö högskola: Fakulteten för hälsa och samhälle, institutionen för vårdvetenskap, 2018. Bakgrund: Sjuksköterskor ställs inför fler traumatiska upplevelser under kort tid än en individ utanför det vårdande yrket gör under en livstid. Empatitrötthet är för den svenska sjukvården ett nytt myntat begrepp. För att förstå empatitrötthet har även fenomenet empati beskrivits kort i bakgrunden. En vidare och djupare förståelse för fenomenet empatitrötthet presenteras i resultatet. Syfte: Syftet med studien är att utforska fenomenet empatitrötthet ur ett omvårdnadsperspektiv.Metod: En icke systematisk litteraturstudie har gjorts baserad på kvalitativa, kvantitativa och mixade ansatser för att få ett helhetsperspektiv på fenomenet empatitrötthet. Resultat: Fenomenet empatitrötthet påverkar omvårdnaden av patienter och anhöriga. Sjuksköterskor med kort erfarenhet drabbas lättare av empatitrötthet än sjuksköterskor med lång erfarenhet. Det finns inga riktlinjer för hur en sjuksköterska ska motverka empatitrötthet, utan sjuksköterskor använder egna strategier för att inte drabbas av empatitrötthet.Konklusion: Litteraturstudien visar att begreppet empatitrötthet är högst aktuellt i dagens sjukvård då hög arbetsbelastning och stress hos sjuksköterskan ofta är ett faktum. Nyckelord: Empatitrötthet, Omvårdnad, Utbrändhet, Sekundär traumatisk stress, Sjuksköterska.
Svensson, L. Does empathy ever end? A literature review about compassion fatigue. Degree project in nursing 15 credit points. Malmö University: Faculty of Health and Society, Department of Care Science, 2018. Background: Nurses today are exposed to more traumatic events under a short period of time than a person outside the caring environment experiences in a lifetime. Compassion fatigue is a new concept in Swedish health care. To understand compassion fatigue the concept empathy further been discussed in the background. A deeper understanding for the phenomena compassion fatigue is presented in the result. Aim: The aim for this study is to further explore the phenomena of compassion fatigue from a nursing perspective.Method: A non-systematic literature review has been used in this study based on literature using different approaches to get a holistic view on the phenomena compassion fatigue. Result: The phenomenon of compassion fatigue affects the care of patients and relatives. Nurses with short experience are more easily affected by compassion fatigue than nurses with long experience. There are no guidelines for how a nurse should counteract comapssion fatigue, but nurses use their own strategies to not suffer from compassion fatigue.Conclusion: The review shows that the concept of compassion fatigue is highly topical in today's medical care when high workload and stress in the nurse is often a fact. Keywords: Burnout, Compassion fatigue, Nursing, Nurses, Secondary traumatic stress.
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Books on the topic "TAVR"

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Musahipzade Celal tiyatrosu'nda Osmanlı tavrı: Osmanlı dil-tavır özellikleri üzerine bir deneme. İstanbul: Boğaziçi Üniversitesi Yayınevi, 2004.

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Povey, Meic. 'Tair'. Aberystwyth: Canolfan Astudiaethau Addysg, 1999.

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Taur. South Melbourne, Vic: Hyland House, 1998.

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Tavo aḥeret. [Tel Aviv]: Ḳeshev le-shirah, 2014.

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Eliraz, Israel. Tavor: Shirim. Tel-Aviv: ha-Ḳibuts ha-meʾuḥad, 1999.

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Ikaiḍamī, ʻIzzat, ed. Be tavār. Panjgūr: ʻIzzat Ikaiḍamī, 2013.

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Gashyĭklar tavy. Kazan: Tatarstan kitap năshrii͡aty, 1991.

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Baĭramova, L. Tair Salakhov. Moskva: Belyĭ gorod, 2003.

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Pledger, Maurice. Tavi Tiger. San Diego, CA: Silver Dolphin Books, 2011.

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I︠U︡, Osmolovskiĭ, and Koli︠a︡denko A. M, eds. Tair Salakhov. Moskva: Sovetskiĭ khudozhnik, 1986.

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Book chapters on the topic "TAVR"

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Patel, Vivek, Robert Naami, and Arvind Reddy Devanabanda. "TAVR in Previous Two TAVRs in SAVR." In Complex Cases in Structural Heart Intervention, 147–54. Cham: Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-05965-0_18.

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Wheeler, Miriam L., and Christopher R. Thompson. "Complications of TAVR." In Multimodality Imaging for Transcatheter Aortic Valve Replacement, 403–15. London: Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-2798-7_34.

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Watkins, A. Claire, Anuj Gupta, and Bartley P. Griffith. "Durability of TAVR." In Transcatheter Aortic Valve Replacement, 119–20. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93396-2_15.

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Kliger, Chad, Vladimir Jelnin, Gregory P. Fontana, and Carlos E. Ruiz. "Fusion Imaging for TAVR." In Multimodality Imaging for Transcatheter Aortic Valve Replacement, 365–76. London: Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-2798-7_31.

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Watkins, A. Claire, Anuj Gupta, and Bartley P. Griffith. "Vascular Complications of TAVR." In Transcatheter Aortic Valve Replacement, 103–7. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93396-2_12.

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Watkins, A. Claire, Anuj Gupta, and Bartley P. Griffith. "Conscious Sedation for TAVR." In Transcatheter Aortic Valve Replacement, 117–18. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93396-2_14.

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Parikh, Puja B., and Susheel Kodali. "Transfemoral TAVR: Balloon-Expandable Valves." In Catheter Based Valve and Aortic Surgery, 11–31. New York, NY: Springer New York, 2016. http://dx.doi.org/10.1007/978-1-4939-3432-4_2.

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Osho, Asishana, and Nathaniel B. Langer. "Transcatheter Aortic Valve Replacement (TAVR)." In Near Misses in Cardiac Surgery, 13–15. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92750-9_4.

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Osho, Asishana, and Nathaniel Langer. "Even More Complications of TAVR." In Near Misses in Cardiac Surgery, 83–85. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-92750-9_21.

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Brooks, Mathew, and Ronen Gurvitch. "Coaxial Angle Prediction for TAVR: CT." In Multimodality Imaging for Transcatheter Aortic Valve Replacement, 319–25. London: Springer London, 2013. http://dx.doi.org/10.1007/978-1-4471-2798-7_26.

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Conference papers on the topic "TAVR"

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Song, Minyoung. "TAVR." In the 28th of the international conference extended abstracts. New York, New York, USA: ACM Press, 2010. http://dx.doi.org/10.1145/1753846.1753897.

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Song, Minyoung, and Chris Quintana. "TAVR." In the 28th of the international conference extended abstracts. New York, New York, USA: ACM Press, 2010. http://dx.doi.org/10.1145/1753846.1754087.

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Mutlu, Onur, and Hüseyin Çağatay Yalçın. "Patient Specific Transcatheter Aortic Valve Replacement Therapy Pathway with Computational Fluid Structure Interaction Analysis." In Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2021. http://dx.doi.org/10.29117/quarfe.2021.0084.

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Total cardiovascular disease (CVD) prevalence has risen dramatically from 271 million in 1990 to 523 million in 2019, and CVD fatalities rose gradually from 12.1 million in 1990 to 18.6 million in 2019. According to American Heart Association statistics, annual heart valve procedures in the United States were above 100,000 in 2013, with approximately 50,000 AV replacements. The ideal replacement valve should be durable, resistant to thrombosis, and have excellent hemodynamics features. Transcatheter aortic valve replacement (TAVR) has been introduced about two decades ago as an alternative for minimally invasive implantation of new generation bioprosthetic heart valves. Computational modeling can be used during therapy planning for the selection of appropriate replacement valves for TAVR. In this NPRP funded project, we are establishing a mechanical and FSI analysis path, for a detailed patient-specific hemodynamics analysis for TAVR, considering the most important parameters affecting TAV efficiency. This approach will enable the choice of the most suitable TAV type and deployment position for the treatment. TAV which is crimped and placed into the catheter by mechanical analysis is deployed in a patient-specific geometry in a virtual treatment then contact pressure and the stress are measured on the aortic root, stent, and aortic leaflets. TAV performance indicators are determined by FSI analysis using coupled ABAQUS and Flow-vision software. With this advanced analysis and simulation path, we expect to estimate accurately the clinical TAVR parameters such as contact pressure, contact area, principal stress, etc. before the operation during therapy planning. This approach will help clinicians in optimal valve selection for TAVR patients.
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Bhadra, O. D., K. Vitanova, S. Saha, D. M. Holzhey, T. Noack, J. Kempfert, A. Unbehaun, et al. "Outcome after Surgical TAVR Explantation: Insights from the International Multicenter EXPLANT-TAVR Registry." In 51st Annual Meeting of the German Society for Thoracic and Cardiovascular Surgery (DGTHG). Georg Thieme Verlag KG, 2022. http://dx.doi.org/10.1055/s-0042-1742940.

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Secord, Thomas W., Lucas J. Koerner, and Robert J. Kopas. "An Integrated I2C Sensor Network for Transcatheter Heart Valves." In 2020 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2020. http://dx.doi.org/10.1115/dmd2020-9016.

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Abstract Transcathether aortic heart valve replacement (TAVR) is a widespread approach to treating patients with severe aortic stenosis. A TAVR implant is ideally positioned to access numerous clinically relevant signals including arterial blood pressure, pulse wave velocity, electrocardiogram (ECG), patient motion, heart rate, respiration, and blood oxygenation. Unlike medical devices such as pacemakers, TAVR implants are purely mechanical structures with no sensing capabilities. In this work, we address this unmet clinical need by incorporating an Inter-Integrated Circuit (I2C) sensor network within a TAVR stent frame and designing sensor modules that can physically connect to the network at various landing zones. To illustrate this approach, we designed and built a sensor circuit board populated with a commercial inertial measurement unit (IMU) that can detect clinically useful metrics including pulse wave velocity at the aortic root. We use two spatially separated accelerometers to measure pulse wave propagation time with a standard deviation of 140 μs, which translates to an uncertainty of the pulse wave velocity of ±0.2 m/s. The sensor modules connect to a customized stent frame containing the necessary I2C conductors. Our data suggest that a fully instrumented TAVR paradigm is feasible using this frame design and modular sensor approach.
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Ranganathan, D., B. O’Sullivan, E. McAuliffe, SM O’ Connor, N. Rady, F. Fahy, and P. Kearney. "12 Electrocardiography predictors for pacemaker insertion post TAVR." In Irish Cardiac Society Annual Scientific Meeting & AGM (Virtual), October 1st – 3rd 2020. BMJ Publishing Group Ltd and British Cardiovascular Society, 2020. http://dx.doi.org/10.1136/heartjnl-2020-ics.12.

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Bielecki, Michael A., and Paul A. Iaizzo. "The Use of a Pulsatile Perfusion Apparatus for the Assessment of Aortic Valve Function within Formalin Fixed Human Hearts: Pre- And Post-Tavr Implantation with Subsequent Micro-CT Analyses." In 2022 Design of Medical Devices Conference. American Society of Mechanical Engineers, 2022. http://dx.doi.org/10.1115/dmd2022-1059.

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Abstract Transcatheter aortic valve replacement (TAVR) is often the clinical choice for patients with severe aortic stenosis or as an alternative to surgical aortic valve replacement for high-risk patients. In these patients, the incidence of complications, including aortic annular rupture, coronary occlusion, and newonset atrial fibrillation is just under five percent. The Visible Heart® Laboratories have a library of over 500 perfusion-fixed human hearts preserved in formalin. These specimens can be utilized to better understand aortic valvular function associated with various diseased states with proper pulsatile profusion. This preclinical benchtop model could also be used for the testing of TAVR devices: e.g., to better understand proper placement techniques. Here we describe the continued development of a pulsatile perfusion apparatus constructed to assess the aortic valve function of these human heart specimens: i.e., pre- and post- TAVR deployment. Multi-modal imaging can be utilized, including videoscopes, fluoroscopy, and echocardiography. Resultant placements, the device-tissue interface within the valvular annulus can be subsequently assessed using micro-CT imaging. This pre-clinical approach also allows for this unique human heart. Specimens to be utilized numerous times, providing real anatomical scenarios for the testing of these devices.
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Park, Duk-Woo, and Rachel Giles. "Head-to-head: post-TAVR edoxaban not better than DAPT." In 71st ACC Scientific Session, edited by Marc Bonaca. Baarn, the Netherlands: Medicom Medical Publishers, 2022. http://dx.doi.org/10.55788/b793d016.

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Celis, Diego, Angela Nieckele, ivan fernney ibanez aguilar, Pedro Nieckele Azevedo, and BRUNO AZEVEDO. "Numerical investigation of hemodynamics patterns after Transcatheter Aortic Valve Replacement (TAVR)." In 24th ABCM International Congress of Mechanical Engineering. ABCM, 2017. http://dx.doi.org/10.26678/abcm.cobem2017.cob17-0512.

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Hrustanovic-Kadic, M., V. Singh, K. Sell-Dottin, and K. El-Kersh. "TAVR in a Patient with Severe Scleroderma-Associated PAH Receiving Parenteral Therapy." In American Thoracic Society 2020 International Conference, May 15-20, 2020 - Philadelphia, PA. American Thoracic Society, 2020. http://dx.doi.org/10.1164/ajrccm-conference.2020.201.1_meetingabstracts.a7284.

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Reports on the topic "TAVR"

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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.

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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.
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Ion, Alexandru Cristian, Liviu Ionut Serbanoiu, Elena Plesu, Stefan Sebastian Busnatu, and Catalina Liliana Andrei. TAVR vs SAVR long-term mortality due to stroke and MI: A meta-analysis during COVID 19 pandemic. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, November 2022. http://dx.doi.org/10.37766/inplasy2022.11.0110.

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McLendon, T. R., and T. C. Bartke. Tar sand. Office of Scientific and Technical Information (OSTI), January 1990. http://dx.doi.org/10.2172/5785285.

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Lum, Clinton C. L. Installation of Groundwater Monitoring Wells TAV-MW15 and TAV-MW16. Office of Scientific and Technical Information (OSTI), May 2017. http://dx.doi.org/10.2172/1367309.

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Telenko, Darcy, Martin Chilvers, Nathan Kleczewski, Daren Mueller, Dian Plewa, Alison Robertson, Damon Smith, Adam Sisson, Albert Tenuta, and Kiersten Wise. Tar Spot of Corn. United States: Crop Protection Network, December 2020. http://dx.doi.org/10.31274/cpn-20201214-2.

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Wise, Kiersten, and Purdue Extension. Corn Disease Management: Tar Spot. United States: Crop Protection Netework, February 2019. http://dx.doi.org/10.31274/cpn-20190620-008.

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Author, Not Given. Tar sands program plan, FY 1989. Office of Scientific and Technical Information (OSTI), June 1989. http://dx.doi.org/10.2172/6118838.

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Author, Not Given. Tar sands program plan, FY 1988. Office of Scientific and Technical Information (OSTI), June 1988. http://dx.doi.org/10.2172/6173408.

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de Bruijn, T. J. W., and S. Fouda. CANMET hydrocracking using AMOCO tar sands feedstock. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1988. http://dx.doi.org/10.4095/304388.

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Penney, W. R. Solvent extraction of Southern US tar sands. Office of Scientific and Technical Information (OSTI), January 1990. http://dx.doi.org/10.2172/6303444.

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