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Relevant bibliographies by topics / Ejection fraction (EF%)

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Academic literature on the topic 'Ejection fraction (EF%)'

Author: Grafiati

Published: 5 June 2025

Last updated: 2 August 2025

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Journal articles on the topic "Ejection fraction (EF%)"

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Xie, Yao, Jian Li, Hongkai Chen, and Meng Zhang. "Ejection Fraction Measurement Based on Impedance Cardiography." BIO Web of Conferences 60 (2023): 02003. http://dx.doi.org/10.1051/bioconf/20236002003.

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Ejection fraction (EF) is an important indicator of cardiac function, especially in clinical conditions. Unlike imaging technology such as echocardiography, impedance cardiography (ICG) is a low-cost, non-invasive and continuous method of monitoring EF. However, the accuracy of the ICG method to evaluate the EF value needs to be further improved. This paper uses a simplified ventricular model to simplify the complex relationship between the EF value and the relevant ICG parameters, and proposes a method for calculating the EF value through these relevant ICG parameters. We tested this method w

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Wong, James, Radomir Chabiniok, Shane M. Tibby, et al. "Exploring kinetic energy as a new marker of cardiac function in the single ventricle circulation." Journal of Applied Physiology 125, no. 3 (2018): 889–900. http://dx.doi.org/10.1152/japplphysiol.00580.2017.

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Ventricular volumetric ejection fraction (VV EF) is often normal in patients with single ventricle circulations despite them experiencing symptoms related to circulatory failure. We sought to determine if kinetic energy (KE) could be a better marker of ventricular performance. KE was prospectively quantified using four-dimensional flow MRI in 41 patients with a single ventricle circulation (aged 0.5–28 yr) and compared with 43 healthy volunteers (aged 1.5–62 yr) and 14 patients with left ventricular (LV) dysfunction (aged 28–79 yr). Intraventricular end-diastolic blood was tracked through syst

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Laksono, Sidhi, and Robby Franata. "Management Heart Failure with Preserved Ejection Fraction: A Mini Review." South East European Journal of Cardiology 4, no. 1 (2023): 52–57. http://dx.doi.org/10.3889/seejca.2023.6051.

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BACKGROUND: Heart failure (HF) is a complex clinical syndrome that results when heart’s ability to contract or fill is impaired structurally or functionally. Current guideline has been classified HF according to level of left ventricular ejection fraction (EF). 1) Heart failure with reduced ejection fraction (HRrEF): EF ≤ 40%; 2) Heart failure with mildy ejection fraction (HRmrEF): EF 41 - 49%; 3) Heart failure with preserved ejection fraction (HRpEF): EF ≥50%. AIM: We aimed to analyse the management of heart failure with preserved ejection fraction. METHODS: We conducted a literature search o

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Lund, Lars H. "Heart Failure with Mid-range Ejection Fraction: Lessons from CHARM." Cardiac Failure Review 4, no. 2 (2018): 70. http://dx.doi.org/10.15420/cfr.2018.11.2.

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The newly defined category of heart failure (HF) with mid-range ejection fraction (HFmrEF; EF 40–49 %) is beginning to be characterised but little is known about the potential for treating it. Trials and observational studies suggest that standard therapy for HF with reduced ejection fraction (HFrEF; EF <40 %) may also offer some benefit to patients with EF ≥40 %; however, any difference between its effects on HFmrEF and true HF with preserved ejection fraction (HFpEF) have until now not been explored. This study summarises randomised trial data from the CHARM programme that suggest that ca

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Akinterinwa, Oluwaseun E., Mahavir Singh, Sreevatsa Vemuri, and Suresh C. Tyagi. "A Need to Preserve Ejection Fraction during Heart Failure." International Journal of Molecular Sciences 25, no. 16 (2024): 8780. http://dx.doi.org/10.3390/ijms25168780.

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Heart failure (HF) is a significant global healthcare burden with increasing prevalence and high morbidity and mortality rates. The diagnosis and management of HF are closely tied to ejection fraction (EF), a crucial parameter for evaluating disease severity and determining treatment plans. This paper emphasizes the urgent need to maintain EF during heart failure, highlighting the distinct phenotypes of HF with preserved ejection fraction (HFpEF) and HF with reduced ejection fraction (HFrEF). It discusses the complexities of HFrEF pathophysiology and its negative impact on patient outcomes, st

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Sarkar, Prattay Guha, and Vishal Chandra. "A Novel Approach for Detecting Abnormality in Ejection Fraction Using Transthoracic Echocardiography with Deep Learning." International Journal of Online and Biomedical Engineering (iJOE) 16, no. 13 (2020): 99. http://dx.doi.org/10.3991/ijoe.v16i13.18483.

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<p class="0abstract">Cardiovascular diseases (CVD) are the prime cause of mortality in people worldwide. Mortality in CVD has been strongly linked to Ejection Fraction (EF) in various studies<sup>1</sup>. Left ventricular ejection fraction (LVEF) is the central measure of left ventricular systolic function. LVEF is the fraction of chamber volume ejected in systole (stroke volume) in relation to the volume of the blood in the ventricle at the end of diastole (end-diastolic volume)<sup>2</sup>. Evaluation of left ventricular systolic function by left ventricle eject

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Kanazirev, Branimir. "Heart failure with preserved ejection fraction – onset." Bulgarian Cardiology 27, no. (2) (2021): 17–36. https://doi.org/10.3897/bgcardio.27.e69589.

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During these more than 20 years of evolution in understandings of the mechanisms of heart failure (HF) with preserved fractional ejection, there has been a rich variety of terminology, including "diastolic heart failure", "heart failure with preserved systolic function" and "heart failure with preserved fraction". By defi nition, the latter term "ejection fraction-induced heart failure" proved to be the most appropriate and was accepted as the most correct, as the presence of diastolic dysfunction is not unique only to this group and exists in these patients, albeit subclinically and discrete

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Shriki, J. E., K. Surti, A. Farvid, J. S. Shinbane, and P. M. Colletti. "Quantitative Evaluation of the Amount of Delayed Myocardial Enhancement as a Predictor of Systolic Dysfunction." Open Cardiovascular Medicine Journal 3, no. 1 (2009): 35–38. http://dx.doi.org/10.2174/1874192400903010035.

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30 patients with delayed contrast enhancement in patterns suggestive of myocardial infarctions were reviewed. Infarct mass was quantitatively measured using short axis images obtained in the delayed phase of gadopentetate administration. Left ventricular mass and ejection fraction were measured using short axis, steady state free precession images. A relationship is drawn between increased mass of infarction and decreased left ventricular ejection fraction. For each gram of infarct, there is a 0.5 % reduction in ejection fraction (EF = 50 - (0.48 x gm infarcted myocardium); r2= 0.49). For each

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Soetisna, Tri Wisesa, Wiraga Adi Nugraha, Fitri Setyani Rokim, Lisca Namretta, Muhammad Bagus Ronidipta Pradana, and Digjaya Utama. "Complete Revascularization Showed A Better Cardiac Function Improvement In Patients With Low Ejection Fraction." Heart Surgery Forum 25, no. 3 (2022): E425—E428. http://dx.doi.org/10.1532/hsf.4123.

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Purpose: This study aimed to compare postoperative ejection fraction (EF) in response to coronary artery bypass grafting (CABG) among patients with preoperative EF <35% and >35%. Methods: A retrospective study was conducted in a single institution using clinical data of 660 patients undergoing elective on-pump CABG in 2018-2019. Patients were classified into two groups based on preoperative left ventricle ejection fraction (<35% and >35%). The primary endpoint was the change of postoperative ejection fraction. Results: In this study, 72 patients had preoperative left ventricle ejec

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Bartko, Philipp E., Martin Hülsmann, Judy Hung, et al. "Secondary valve regurgitation in patients with heart failure with preserved ejection fraction, heart failure with mid-range ejection fraction, and heart failure with reduced ejection fraction." European Heart Journal 41, no. 29 (2020): 2799–810. http://dx.doi.org/10.1093/eurheartj/ehaa129.

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Abstract Secondary mitral regurgitation and secondary tricuspid regurgitation due to heart failure (HF) remain challenging in almost every aspect: increasing prevalence, poor prognosis, notoriously elusive in diagnosis, and complexity of therapeutic management. Recently, defined HF subgroups according to three ejection fraction (EF) ranges (reduced, mid-range, and preserved) have stimulated a structured understanding of the HF syndrome but the role of secondary valve regurgitation (SVR) across the spectrum of EF remains undefined. This review expands this structured understanding by consolidat

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Dissertations / Theses on the topic "Ejection fraction (EF%)"

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Lin, Jonathan Lee. "Evaluation of 18F-FDG PET Agent in Cardiac Gated Imaging." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1342817999.

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Books on the topic "Ejection fraction (EF%)"

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AlJaroudi, Wael. Risk Assessment in Acute Coronary Syndromes. Oxford University Press, 2015. http://dx.doi.org/10.1093/med/9780199392094.003.0013.

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Acute coronary syndromes (ACS) include unstable angina pectoris (UAP), non-ST elevation (NSTEMI), and ST elevation acute myocardial infarction (STEMI). Each year, more than 2 million people are hospitalized with ACS in the United States. The initial treatment has evolved over the last few decades from conservative management to early reperfusion therapy. Medical therapy has also significantly changed with the use of newer more potent antiplatelet agents, beta-blockers, angiotensin converting enzyme inhibitors, statins, and anti-anginal drugs, which have resulted in improvement of patient care

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Book chapters on the topic "Ejection fraction (EF%)"

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Kuwano, Tadao, Toshizo Katsuda, Kenyu Yamamoto, et al. "Study on the measurement of ejection fraction (EF) using left ventriculogram." In IFMBE Proceedings. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89208-3_370.

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Gao, Yuan, Yihao Ma, Qian Zhao, and Jinchao Song. "EF-Net: A Semi-supervised Deep Learning Network for Calculating Ejection Fraction in Cardiac Ultrasound Images." In Lecture Notes in Electrical Engineering. Springer Nature Singapore, 2025. https://doi.org/10.1007/978-981-96-2432-4_15.

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Zucchetta, Pietro, and Ora Israel. "Cardiovascular System." In A Practical Guide for Pediatric Nuclear Medicine. Springer Berlin Heidelberg, 2023. http://dx.doi.org/10.1007/978-3-662-67631-8_3.

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AbstractScintigraphy of the cardiovascular system in children is less common than in adults, reflecting the different nature and prevalence of cardiac diseases in paediatrics. Congenital malformations of the heart and their effect on cardiac and pulmonary functions and on myocardial perfusion are common indications in children. The first pass study is an investigation that can detect and quantify cardiac left-to-right shunts. It is used only in selected cases. Myocardial perfusion scintigraphy (MPS), with or without physical or pharmacological stress, provides important information on blood su

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van Heerebeek, L., and Walter J. Paulus. "Heart failure with preserved ejection fraction." In Oxford Textbook of Heart Failure, edited by Andrew L. Clark, Roy S. Gardner, and Theresa A. McDonagh. Oxford University Press, 2022. http://dx.doi.org/10.1093/med/9780198766223.003.0029.

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Heart failure with preserved ejection fraction (HFpEF) represents a complex and heterogeneous clinical syndrome, which is increasingly prevalent and associated with poor outcome. In contrast to heart failure with reduced EF (HFrEF), modern heart failure pharmacotherapy does not improve outcome in HFpEF, which is related to incomplete understanding of HFpEF pathophysiology, patient heterogeneity and lack of insight into primary pathophysiological processes. Patients with HFpEF are frequently elderly females and patients have a high prevalence of non-cardiac co-morbidities, which independently a

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Coats, Andrew JS, Biykem Bozkurt, and Petar M. Seferović. "Universal definition of heart failure." In The ESC Textbook of Heart Failure, edited by Petar M. Seferović, Andrew J. S. Coats, Gerasimos Filippatos, Stefan D. Anker, Johann Bauersachs, and Giuseppe Rosano. Oxford University PressOxford, 2023. http://dx.doi.org/10.1093/med/9780198891628.003.0001.

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Abstract In early 2021, the Heart Failure Society of America, the Heart Failure Association of European Society of Cardiology, and the Japanese Heart Failure Society (JHFS) proposed a new universal definition of heart failure (UDHF). Four other associations endorsed the proposal: the Canadian Heart Failure Society, the Cardiac Society of Australia and New Zealand, the Heart Failure Association of India, and the Chinese Heart Failure Association. The reasons underlying the UDHF were many but importantly included the need to define heart failure (HF) easily and reproducibly as an essential step

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Kaski, Juan Carlos. "Heart failure." In Drugs in Cardiology. Oxford University Press, 2010. http://dx.doi.org/10.1093/med/9780199557462.003.0025.

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Introduction 4 Chronic heart failure with reduced LVEF (systolic heart failure) 6 Pharmacological management of chronic heart failure 8 Non-pharmacological management of chronic heart failure 18 Chronic heart failure with preserved LVEF (diastolic heart failure) 20 Acute heart failure 22 Clinical trials 26 Heart failure (HF) is a complex condition that results from cardiac functional and/or structural abnormalities that affect the ability of the heart to pump blood, and is often defined as the inability of the heart to adequately perfuse the organs of the body. Symptoms of HF vary depending on

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Plagwitz, Lucas, Philipp Neuhaus, Kemal Yildirim, Noah Losch, Julian Varghese, and Antonius Büscher. "Zero-Shot LLMs for Named Entity Recognition: Targeting Cardiac Function Indicators in German Clinical Texts." In Studies in Health Technology and Informatics. IOS Press, 2024. http://dx.doi.org/10.3233/shti240861.

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Introduction: Large Language Models (LLMs) like ChatGPT have become increasingly prevalent. In medicine, many potential areas arise where LLMs may offer added value. Our research focuses on the use of open-source LLM alternatives like Llama 3, Gemma, Mistral, and Mixtral to extract medical parameters from German clinical texts. We concentrate on German due to an observed gap in research for non-English tasks. Objective: To evaluate the effectiveness of open-source LLMs in extracting medical parameters from German clinical texts, specially focusing on cardiovascular function indicators from car

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Corrà, Ugo, and Jean-Paul Schmid. "Recovering from acute heart events." In ESC Handbook of Cardiovascular Rehabilitation. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198849308.003.0005.

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Despite extraordinary advances in pharmacological and interventional therapies, cardiac rehabilitation (CR) and secondary prevention programmes have maintained a class I indication with level of evidence A in patients after acute coronary syndrome (ACS) and a class I recommendation with level of evidence B in patients after surgical revascularization and with chronic ischaemic heart disease (IHD). In post-acute or chronic heart failure (New York Heart Association (NYHA) class II–III, both with reduced or preserved ejection fraction (EF)), CR has a class I recommendation with level of evidence

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Lazzeroni, Davide, and Claudio Stefano Centorbi. "Hypertrophic Cardiomyopathy: Genetics, Pathogenesis, Diagnosis, Clinical Course and Therapy." In Cardiomyopathy - Disease of the Heart Muscle [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.97033.

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Hypertrophic cardiomyopathy (HCM) is a genetic disorder of cardiac myocytes that is characterized by cardiac hypertrophy, unexplained by the loading conditions, a non-dilated left ventricle and a normal or increased left ventricular ejection fraction (LV-EF). Prevalence of HCM has been estimated at 0.16% to 0.29% (≈ 1:625–1:344 individuals) in the general adult population. HCM represents the most common genetic heart disease and represent an archetypical single gene disorder with an autosomal dominant pattern of inheritance and historically termed a “disease of the sarcomere”. The precise mech

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Conference papers on the topic "Ejection fraction (EF%)"

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Yang, Chun, Dalin Tang, Tal Geva, et al. "A Novel Surgical Approach Using Contracting Band to Improve Right Ventricle Ejection Fraction for Patients With Repaired Tetralogy of Fallot, a Patient-Specific CMR-Based Modeling Study." In ASME 2012 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/sbc2012-80041.

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Patients with repaired Tetralogy of Fallot (ToF) account for the majority of cases with late onset right ventricle (RV) failure. The current surgical approach, which includes pulmonary valve replacement/insertion (PVR), has yielded mixed results [1–2]. A new surgical option placing an elastic band in the right ventricle is proposed to improve RV cardiac function measured by ejection fraction (EF).

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Goette, Matthew J., Jana G. Delfino, Brandon K. Fornwalt, and John N. Oshinski. "A New Method to Diagnose Left Ventricular Dyssynchrony With Analysis of Heart Wall Thickening From Cardiac CT." In ASME 2008 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2008. http://dx.doi.org/10.1115/sbc2008-192629.

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Left ventricular (LV) dyssynchrony is a pathological condition in which segments of the myocardial wall contract at different times. This dyssynchrony results in a decreased LV ejection fraction (EF) and an increased level of mitral regurgitation. LV dyssynchrony has been linked to higher rates of morbidity, mortality, and arrhythmic susceptibility in patients with congestive heart failure. Cardiac resynchronization therapy (CRT) with biventricular pacemakers has benefited patients with drug-refractory heart failure and signs of ventricular dyssynchrony. Patients are currently selected for CRT

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Jhun, Choon-Sik, Mark B. Ratcliffe, and Julius M. Guccione. "Ventricular Wall Stress and Pump Function of Ventricular Septal Defect of Congenital Heart Defects." In ASME 2009 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2009. http://dx.doi.org/10.1115/sbc2009-206320.

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About 36,000 infants are born each year with a congenital heart defect (CHD) and charges for treatment surpass $2.2 billion for inpatient surgery alone. Of many different types of CHDs, ventricular septal defect (VSD) is the most common class (∼1/3 of CHDs) of heart deformity present at birth. Though many close spontaneously and rarely require treatment, VSD still accounts for ∼15% of defects requiring an invasive procedure within the first year of life [1]. Generally, the ventricular performance is indexed by geometry, shape, diastolic and systolic function, and myocardial contractility [2].

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Peelukhana, Srikara Viswanath, Kranthi K. Kolli, Hanan Kerr, et al. "Improved Assessment of Coronary Flow Impairment Using N-13 Ammonia Positron Emission Tomography." In ASME 2013 Summer Bioengineering Conference. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/sbc2013-14351.

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Non-invasive diagnosis of coronary artery disease (CAD) is achieved using rest and stress myocardial perfusion imaging (MPI) techniques. Currently, the MPI technique that is a standard of care is the Single Photon Emission Computed Tomography (SPECT). However, comparatively accurate and reliable MPI diagnostic test known as Positron Emission Tomography (PET) is also available and gaining increasing popularity. In this study, a comparison is made between the impairments and left ventricular (LV) ejection fraction (EF) reported by SPECT and PET. In addition, using PET data, flow defects were qua

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Villemant, D., P. Barriot, and P. Bodenan. "THROMBOLYSIS AND ACUTE MYOCARDIAL INFARCTION (AMI)." In XIth International Congress on Thrombosis and Haemostasis. Schattauer GmbH, 1987. http://dx.doi.org/10.1055/s-0038-1642981.

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AMI is a major cause of morbidity and mortality in modern society Conventional treatment has no benefic effect on the size of infarct, alteration of left ventricular (LV) function and mortality. Intravenous (IV) thrombolysis reduces in hospital mortality by 23 % if infused within 3 hours of ischemia, 47 % if within 1 hour. It reduces the size of infarct by 51 % if reperfusion occurs within 1 hour of ischemia, 31 % if between 1 and 2 hours and 13 % if between 2 and 4 hours. The preservation of LV function is of 28 to 42%. These benefic effects, thanks to IV thrombolysis, can be obtained only if

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