keyword
MENU ▼
Read by QxMD icon Read
search

Heart failure normal ejection fraction

keyword
https://www.readbyqxmd.com/read/29466168/-lung-ventilation-efficiency-and-quality-of-life-after-orthotopic-heart-transplantation
#1
O V Kamenskaya, I Y Loginova, D V Doronin, A M CHernyavskiy
Aim of the study was assessment of efficiency of lung ventilation and its relationship with quality of life in patients undergoing orthotopic heart transplantation (OHT). MATERIALS AND METHODS: The study involved 40 patients with terminal chronic heart failure (CHF) included in the waiting list for heart transplantation. Before surgery and after OHT all patients underwent cardiopulmonary exercise testing, evaluation of clinical status and quality of life (QL) according to the 36-Item Short Form Survey (SF-36)...
January 2018: Kardiologiia
https://www.readbyqxmd.com/read/29461894/rethinking-chronic-obstructive-pulmonary-disease-chronic-pulmonary-insufficiency-and-combined-cardiopulmonary-insufficiency
#2
R Graham Barr
Almost 70 years ago, Drs. Baldwin, Cournand, and Richards defined chronic pulmonary insufficiency by the presence of respiratory symptoms, radiologic evidence of pulmonary emphysema on chest radiography, and physiologic gas trapping. A decade later, airflow obstruction on spirometry was added to the definition and insufficiency became a disease. Contemporary studies are reviving the diagnostic approach described by these early luminaries, with researchers finding that symptomatic smokers with preserved spirometry have increased exacerbations and that smokers and non-smokers with normal spirometry but emphysema on chest computed tomography have increased mortality...
February 2018: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/29460366/ejection-fraction-as-a-statistical-index-of-left-ventricular-systolic-function-the-first-full-allometric-scrutiny-of-its-appropriateness-and-accuracy
#3
Lorenzo Lolli, Alan M Batterham, Greg Atkinson
Left ventricular ejection fraction (EF) is a ratio that is deemed to accurately normalize stroke volume (SV) to end-diastolic volume (EDV). Ratios are now well-recognized for not normalizing the numerator, in this case SV, consistently for the denominator, EDV. We aimed to provide the first allometric-based scrutiny of the conventional assumptions that underpin the EF ratio. We allometrically modelled untransformed SV and EDV measurements from 112 preclinical heart failure patients in the Multi-Ethnic Study of Atherosclerosis (MESA), and 864 chronic heart failure patients in the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist (TOPCAT) study...
February 20, 2018: Clinical Physiology and Functional Imaging
https://www.readbyqxmd.com/read/29457270/clinical-and-echocardiographic-characteristics-of-patients-in-sinus-rhythm-normal-left-ventricular-function-and-indeterminate-diastolic-function
#4
Matan Shimron, Lynne Williams, Yevgeni Hazanov, Diab Ghanim, Wadia Kinany, Offer Amir, Shemy Carasso
BACKGROUND: Diastolic dysfunction (DDFx) is the major underlying mechanism of heart failure with preserved left ventricular ejection fraction (EF). Yet, the echocardiographic diagnosis of DDFx in patients in sinus rhythm is challenging and up to 25% of studies have discrepant measures making assessment of DDFx indeterminate. We aimed to describe the clinical and echocardiographic characteristics of patients with indeterminate diastolic function compared to patients with definite normal and abnormal diastolic function...
February 19, 2018: Echocardiography
https://www.readbyqxmd.com/read/29455773/takotsubo-syndrome
#5
REVIEW
Sanjiv Gupta, Madan Mohan Gupta
Takotsubo syndrome is a reversible acute heart failure frequently precipitated by an emotional or physical stress. The clinical presentation resembles acute coronary syndrome. Pathogenesis is complex and may involve brain-heart axis and neuro-hormonal stunning of the myocardium. Coronary angiography reveals normal epicardial arteries with no obstruction or spasm. NT-ProBNP maybe remarkably elevated. Regional wall motion akinesia (RWMA) of left ventricle extends beyond the territory of one coronary artery. Reduced left ventricle ejection fraction (LVEF) and RWMA recover in 6-12 weeks...
January 2018: Indian Heart Journal
https://www.readbyqxmd.com/read/29454775/left-ventricular-dysfunction-and-exercise-capacity-trajectory-implications-for-subclinical-heart-failure-staging-criteria
#6
Julian W Sacre, Chiew Wong, Yih-Kai Chan, Melinda J Carrington, Simon Stewart, Bronwyn A Kingwell
OBJECTIVES: This study aimed to determine the association of stage B heart failure (SBHF) and its constituent left ventricular (LV) abnormalities with trajectory of exercise capacity over time, and assess whether this association is modified by reversion of these LV abnormalities to normal. BACKGROUND: The LV abnormalities of SBHF may coincide with a reduction in exercise capacity that precedes the overt exercise intolerance of clinical heart failure (HF). Determining the predictive capacity of established and novel SBHF criteria for exercise capacity decline may improve HF risk stratification...
February 9, 2018: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29449366/use-of-serum-transthyretin-as-a-prognostic-indicator-and-predictor-of-outcome-in-cardiac-amyloid-disease-associated-with-wild-type-transthyretin
#7
Jacquelyn L S Hanson, Marios Arvanitis, Clarissa M Koch, John L Berk, Frederick L Ruberg, Tatiana Prokaeva, Lawreen H Connors
BACKGROUND: Wild-type transthyretin amyloidosis (ATTRwt), an underappreciated cause of heart failure in older adults, is challenging to diagnose and monitor in the absence of validated, disease-specific biomarkers. We examined the prognostic use and survival association of serum TTR (transthyretin) concentration in ATTRwt. METHODS AND RESULTS: Patients with biopsy-proven ATTRwt were retrospectively identified. Serum TTR, cardiac biomarkers, and echocardiographic parameters were assessed at baseline and follow-up evaluations...
February 2018: Circulation. Heart Failure
https://www.readbyqxmd.com/read/29447786/high-sensitivity-cardiac-troponin-t-left-ventricular-function-and-outcome-in-non-st-elevation-acute-coronary-syndrome
#8
K M Eggers, T Jernberg, B Lindahl
BACKGROUND: Cardiac troponin (cTn) levels reflect infarct size and depressed left ventricular ejection fraction (LVEF) in patients with non-ST elevation acute coronary syndrome (NSTE-ACS). However, there is very limited information on whether cTn measured with a high-sensitivity (hs) assay would provide incremental prognostic information to the LVEF in NSTE-ACS patients. METHODS: This was a registry-based study (SWEDEHEART registry) investigating 20,652 NSTE-ACS patients with available information on hs-cTnT (highest level recorded during the hospitalization) and the LVEF estimated using echocardiography...
March 2018: American Heart Journal
https://www.readbyqxmd.com/read/29440034/subclinical-compromise-in-cardiac-strain-relates-to-lower-cognitive-performances-in-older-adults
#9
Hailey A Kresge, Omair A Khan, Madison A Wagener, Dandan Liu, James G Terry, Sangeeta Nair, Francis E Cambronero, Katherine A Gifford, Katie E Osborn, Timothy J Hohman, Kimberly R Pechman, Susan P Bell, Thomas J Wang, John Jeffrey Carr, Angela L Jefferson
BACKGROUND: Global longitudinal strain (GLS), reflecting total shortening of the myocardium during the cardiac cycle, has emerged as a more precise myocardial function measure than left ventricular ejection fraction (LVEF). Longitudinal strain may be selectively affected in subclinical heart disease, even in the presence of normal LVEF. This study examines subclinical cardiac dysfunction, assessed by GLS and LVEF, and cognition among older adults. METHODS AND RESULTS: Vanderbilt Memory and Aging Project participants who were free of clinical dementia, stroke, and heart failure (n=318, 73±7 years, 58% male) completed neuropsychological assessment and cardiac magnetic resonance to quantify GLS and LVEF...
February 13, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29432575/multiple-common-co-morbidities-produce-left-ventricular-diastolic-dysfunction-associated-with-coronary-microvascular-dysfunction-oxidative-stress-and-myocardial-stiffening
#10
O Sorop, I Heinonen, M van Kranenburg, J van de Wouw, V J de Beer, T N Nguyen, Y Octavia, R W B van Duin, K Stam, R J van Geuns, P A Wielopolski, G P Krestin, A H van den Meiracker, R Verjans, M van Bilsen, A H J Danser, W J Paulus, C Cheng, W A Linke, J A Joles, M C Verhaar, J van der Velden, D Merkus, D J Duncker
Rationale: More than 50% of patients with heart failure have preserved ejection fraction characterized by diastolic dysfunction. The prevalance of diastolic dysfunction is higher in females and associates with multiple comorbidities such as hypertension (HT), obesity, hypercholesterolemia (HC) and diabetes mellitus (DM), although its pathophysiology remains incompletely understood. It has been proposed that the co-morbidities induce systemic inflammation, cardiac microvascular dysfunction and oxidative stress, leading to myocardial fibrosis, myocyte stiffening and ultimately, diastolic dysfunction...
February 8, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29428434/impact-of-body-mass-index-on-heart-failure-by-race-ethnicity-from-get-with-the-guidelines-heart-failure-gwtg-hf-registry
#11
Tiffany M Powell-Wiley, Julius Ngwa, Selomie Kebede, Di Lu, Phillip J Schulte, Deepak L Bhatt, Clyde Yancy, Gregg C Fonarow, Michelle A Albert
OBJECTIVES: This study sought to evaluate the influence of race/ethnicity on the relationship between body mass index (BMI) and mortality in heart failure with preserved ejection fraction (HFpEF) and HF with reduced EF (HFrEF) patients. BACKGROUND: Prior studies demonstrated an "obesity paradox" among overweight and obese patients, where they have a better HF prognosis than normal weight patients. Less is known about the relationship between BMI and mortality among diverse patients with HF, particularly given disparities in obesity and HF prevalence...
February 1, 2018: JACC. Heart Failure
https://www.readbyqxmd.com/read/29424571/coronary-microvascular-dysfunction-in-patients-with-heart-failure-with-preserved-ejection-fraction
#12
Kathryn Dryer, Mark Gajjar, Nikhil Narang, Margaret Lee, Jonathan Paul, Atman P Shah, Sandeep Nathan, Javed Butler, Charles J Davidson, William F Fearon, Sanjiv J Shah, John Edward Abellera Blair
BACKGROUND: There are multiple proposed mechanisms for the pathophysiology of heart failure (HF) with preserved ejection fraction (HFpEF). We hypothesize that coronary microvascular dysfunction is common in these patients. METHODS AND RESULTS: In a prospective, observational study, patients undergoing cardiac catheterization with HFpEF (left ventricular (LV) ejection fraction {greater than or equal to} 50% and with clinical HF), were compared to similar patients without HFpEF...
February 9, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29416222/clinical-course-and-treatment-of-dilated-cardiomyopathy-during-twenty-years-of-follow-up
#13
Edin Begic, Zijo Begic, Nabil Naser
Objective: Demonstration of idiopathic dilated cardiomyopathy with unusual flow, unpredictable clinical picture and complex therapy. Case report: Patient A.P., female, 38 years old, had symptoms of dilated cardiomyopathy (with possible infectious myocarditis in the background) at age 17. After hospitalization for ten months and ten days, while waiting for heart transplantation (with threatening death outcome), without a clearly pronounced threatening arrhythmia, but with a low ejection fraction and a poor general condition, remission occurred...
February 2018: Medical Archives
https://www.readbyqxmd.com/read/29413499/pulmonary-function-predicts-mortality-and-hospitalizations-in-outpatients-with-heart-failure-and-preserved-ejection-fraction
#14
Rut Andrea, Alejandra López-Giraldo, Carlos Falces, Teresa López, Laura Sanchis, Concepción Gistau, Manel Sabaté, Marta Sitges, Josep Brugada, Àlvar Agustí
BACKGROUND: Heart failure with preserved ejection fraction (HFPEF) is the most frequent form of heart failure in ambulatory patients with new-onset symptoms. We previously showed that lung function abnormalities are highly prevalent in HFPEF patients. In this observational, longitudinal study, we tested the hypothesis that the presence of airflow limitation and/or arterial hypoxemia predicts mortality and/or cardiovascular hospitalizations during follow-up in HFPEF outpatients. MATERIALS AND METHODS: HFPEF was diagnosed following the international recommendations...
January 2018: Respiratory Medicine
https://www.readbyqxmd.com/read/29406851/dobutamine-stress-echocardiography-for-management-of-low-flow-low-gradient-aortic-stenosis
#15
Mohamed-Salah Annabi, Eden Touboul, Abdellaziz Dahou, Ian G Burwash, Jutta Bergler-Klein, Maurice Enriquez-Sarano, Stefan Orwat, Helmut Baumgartner, Julia Mascherbauer, Gerald Mundigler, João L Cavalcante, Éric Larose, Philippe Pibarot, Marie-Annick Clavel
BACKGROUND: In the American College of Cardiology/American Heart Association guidelines, patients are considered to have true-severe stenosis when the mean gradient (MG) is ≥40 mm Hg with an aortic valve area (AVA) ≤1 cm 2 during dobutamine stress echocardiography (DSE). However, these criteria have not been previously validated. OBJECTIVES: The aim of this study was to assess the value of these criteria to predict the presence of true-severe AS and the occurrence of death in patients with low-flow, low-gradient aortic stenosis (LF-LG AS)...
February 6, 2018: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/29403612/evaluation-of-cardiac-functions-in-children-with-duchenne-muscular-dystrophy-a-prospective-case-control-study
#16
Abdelrahim Abdrabou Sadek, Shaimaa Mohamed Mahmoud, Mohammed Abd El-Aal, Ahmed Ahmed Allam, Walaa Ibrahim Abd El-Halim
Background: Duchenne muscular dystrophy (DMD) is the most common childhood form of muscular dystrophy. The incidence of cardiomyopathy in DMD increases with age, so its early detection is important because institution of cardioprotective medical therapies may slow adverse remodeling and attenuate heart failure symptoms in these patients. Objective: To assess the cardiac functions in children clinically suspected to have DMD. Methods: Over a one-year period, 28 male children aged from 3 to 18 years old, who met the criteria for diagnosis of DMD compared to 47 healthy controls children, were approached to participate in the study...
November 2017: Electronic Physician
https://www.readbyqxmd.com/read/29402309/embryonic-stem-cell-derived-cardiomyocytes-for-the-treatment-of-doxorubicin-induced-cardiomyopathy
#17
Danúbia Silva Dos Santos, Guilherme Visconde Brasil, Isalira Peroba Rezende Ramos, Fernanda Cristina Paccola Mesquita, Tais Hanae Kasai-Brunswick, Michelle Lopes Araújo Christie, Gustavo Monnerat Cahli, Raiana Andrade Quintanilha Barbosa, Sandro Torrentes da Cunha, Jonathas Xavier Pereira, Emiliano Medei, Antonio Carlos Campos de Carvalho, Adriana Bastos Carvalho, Regina Coeli Dos Santos Goldenberg
BACKGROUND: Doxorubicin (Dox) is a chemotherapy drug with limited application due to cardiotoxicity that may progress to heart failure. This study aims to evaluate the role of cardiomyocytes derived from mouse embryonic stem cells (CM-mESCs) in the treatment of Dox-induced cardiomyopathy (DIC) in mice. METHODS: The mouse embryonic stem cell (mESC) line E14TG2A was characterized by karyotype analysis, gene expression using RT-PCR and immunofluorescence. Cells were transduced with luciferase 2 and submitted to cardiac differentiation...
February 5, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29399871/the-correlation-between-cardiac-magnetic-resonance-t2-and-left-ventricular-global-longitudinal-strain-in-people-with-%C3%AE-thalassemia
#18
Mozhgan Parsaee, Nehzat Akiash, Azita Azarkeivan, Zahra Alizadeh Sani, Ahmad Amin, Mahboubeh Pazoki, Niloufar Samiei, Mohammad Ali Jalili, Mohammad Hassan Adel, Nahid Rezaian
BACKGROUND: Heart failure is the biggest cause of mortality and morbidity in people with thalassemia, and iron deposition in cardiac tissue impairs cardiovascular function. Therefore, early detection of cardiac involvement is important to improve the prognosis in these individuals. METHOD: Two- and three-dimensional echocardiography was performed to evaluate left ventricular ejection fraction (LVEF), left ventricular volumes and diameters, and global longitudinal strain (GLS) in 130 individuals with β-thalassemia using the speckle tracking method...
February 4, 2018: Echocardiography
https://www.readbyqxmd.com/read/29390456/nt-probnp-test-with-improved-accuracy-for-the-diagnosis-of-chronic-heart-failure
#19
Yesheng Pan, Dongjiu Li, Jian Ma, Li Shan, Meng Wei
The circulating concentration of N-terminal pro-brain natriuretic peptide (NT-proBNP) has been shown to be a diagnostic tool for the detection of heart failure. Several factors influence NT-proBNP levels including age, sex, and body mass index (BMI). Therefore, the diagnostic sensitivity of NT-proBNP level for heart failure is relatively higher, but its specificity is low. This study aims to improve the diagnostic accuracy rate of this test by including multiple variables in the diagnostic test.The suspected chronic heart failure outpatients were divided into heart failure with reduced ejection fraction, heart failure with mid-range ejection fraction, heart failure with preserved ejection fraction, and normal heart function groups...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29369740/exploring-kinetic-energy-as-a-new-marker-of-cardiac-function-in-the-single-ventricle-circulation
#20
James Wong, Radomir Chabiniok, Shane M Tibby, Kuberan Pushparajah, Eva Sammut, David S Celermajer, Daniel Giese, Tarique Hussain, Gerald F Greil, Tobias Schaeffter, Reza Razavi
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 4D flow MRI in 41 patients with a single ventricle circulation (aged 0.5 - 28 years) and compared to 43 healthy volunteers (aged 1.5 - 62 years) and 14 patients with left ventricular (LV) dysfunction (aged 28 - 79 years)...
January 25, 2018: Journal of Applied Physiology
keyword
keyword
66384
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"