keyword
MENU ▼
Read by QxMD icon Read
search

stress echocardiography

keyword
https://www.readbyqxmd.com/read/28447283/adenosine-stress-myocardial-perfusion-imaging-in-octogenarians-safety-tolerability-and-long-term-prognostic-implications-of-hemodynamic-response-and-spect-related-variables
#1
Athanasios Katsikis, Athanasios Theodorakos, Spyridon Papaioannou, Antonios Kalkinis, Genovefa Kolovou, Konstantinos Konstantinou, Maria Koutelou
BACKGROUND: Evaluation of tolerability, safety, and prognostic implications of adenosine stress myocardial perfusion imaging (MPI) in octogenarians. METHODS: 370 octogenarians (49% known coronary artery disease) were studied. Hemodynamic response, MPI-related data, and rest-left ventricular ejection fraction (LVEF) based on echocardiography were registered per patient, and prospective follow-up was performed to document all-cause death (ACD), cardiac death (CD), myocardial infarction (MI), and late revascularization...
April 26, 2017: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/28446517/a-novel-%C3%AE-calcitonin-gene-related-peptide-analogue-protects-against-end-organ-damage-in-experimental-hypertension-cardiac-hypertrophy-and-heart-failure
#2
Aisah A Aubdool, Pratish Thakore, Fulye Argunhan, Sarah-Jane Smillie, Moritz Schnelle, Salil Srivastava, Khadija M Alawi, Elena Wilde, Jennifer Mitchell, Keith Farrell-Dillon, Daniel A Richards, Giuseppe Maltese, Richard C Siow, Manasi Nandi, James E Clark, Ajay M Shah, Anette Sams, Susan D Brain
Background -Research into the therapeutic potential of α-calcitonin gene-related peptide (α-CGRP) has been limited due to its peptide nature and short half-life. Here, we evaluate whether a novel potent and long lasting (t½ ≥ 7h) acylated α-CGRP analogue (αAnalogue) could alleviate and reverse cardiovascular disease in two distinct murine models of hypertension and heart failure in vivoMethods -The ability of the αAnalogue to act selectively via the CGRP pathway was shown in skin using a CGRP receptor antagonist...
April 26, 2017: Circulation
https://www.readbyqxmd.com/read/28444062/prognostic-value-of-coronary-flow-reserve-obtained-on-dobutamine-stress-echocardiography-and-its-correlation-with-target-heart-rate
#3
José Sebastião de Abreu, Eduardo Arrais Rocha, Isadora Sucupira Machado, Isabelle O Parahyba, Thais Brito Rocha, Fernando José Villar Nogueira Paes, Tereza Cristina Pinheiro Diogenes, Marília Esther Benevides de Abreu, Ana Gardenia Liberato Ponte Farias, Marcia Maria Carneiro, José Nogueira Paes
Background: Normal coronary flow velocity reserve (CFVR) (≥ 2) obtained in the left anterior descending coronary artery (LAD) from transthoracic echocardiography is associated with a good prognosis, but there is no study correlating CFVR with submaximal target heart rate (HR). Objective: To evaluate the prognostic value of CFVR obtained in the LAD of patients with preserved (>50%) left ventricular ejection fraction (LVEF) who completed a dobutamine stress echocardiography (DSE), considering target HR...
April 20, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/28442292/the-impact-of-gender-on-the-prognostic-value-of-dobutamine-stress-myocardial-contrast-echocardiography
#4
Constantina Aggeli, Kali Polytarchou, Ioannis Felekos, Kostas Zisimos, Erifili Venieri, Athanasios Verveniotis, Dimitrios Varvarousis, Kostantinos Toutouzas, Eleutherios Tsiamis, Dimitrios Tousoulis
BACKGROUND: Dobutamine stress contrast echo (DSCE) has a well-established prognostic value in the context of coronary artery disease (CAD). However, data regarding its prognostic capability separately in men and women are scarce. The aim of the current study was to assess gender-related differences in the prognostic performance of DSCE. METHODS: DSCE was performed in 2645 consecutive patients, who were classified in two groups depending on gender. Follow-up lasted 57...
April 22, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28430369/quantitative-segmental-analysis-of-myocardial-perfusion-to-differentiate-stress-cardiomyopathy-from-acute-myocardial-infarction-a-myocardial-contrast-echocardiography-study
#5
Sun-Yang Min, Jong-Min Song, Yewon Shin, Min-Jung Sin, Dae-Hee Kim, Duk-Hyun Kang, Jae-Kwan Song
BACKGROUND: Both stress cardiomyopathy (SCMP) and acute myocardial infarction (AMI) present with similar clinical symptoms and signs, and apical akinesis. HYPOTHESIS: Quantitative segmental analysis of myocardial contrast echocardiography (MCE) helps to differentiate AMI from SCMP. METHODS: Real-time MCE was performed in 33 consecutive patients who presented with an acute symptom/sign and a new apical akinesis on echocardiography. In 18 left ventricular (LV) myocardial segments, a replenishment curve was obtained in each segment to measure peak plateau myocardial contrast intensity (MCI) (A) and the replenishment curve slope (β)...
April 21, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28423986/global-longitudinal-strain-from-resting-echocardiogram-is-associated-with-long-term-adverse-cardiac-outcomes-in-patients-with-suspected-coronary-artery-disease
#6
Ajay Yadlapati, Timothy R Maher, James D Thomas, Mark Gajjar, Kofo O Ogunyankin, Jyothy J Puthumana
PURPOSE: Measuring myocardial strain using two-dimensional speckle tracking echocardiography has emerged as a new tool to identify subclinical ventricular dysfunction. Abnormal strain has been shown to have superior sensitivity compared with dobutamine stress echocardiography for viability assessment; however, there is a paucity of data regarding the prediction of long-term major adverse cardiac events. We compared the prognostic ability of both global longitudinal strain (GLS) from resting echocardiograms to regional wall motion score index (WMSI) from stress echocardiograms in their ability to predict long-term major adverse cardiac events...
March 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28423592/protective-effect-of-hydrogen-sulphide-against-myocardial-hypertrophy-in-mice
#7
Mingjing Shao, Chuanjun Zhuo, Ronghuan Jiang, Guangdong Chen, Jianmin Shan, Jing Ping, Hongjun Tian, Lina Wang, Chongguang Lin, Lirong Hu
Cardiac hypertrophy is a critical component of phenotype in the failing heart. Recently, increasing evidence has demonstrated that oxidative stress plays an important role in the pathogenesis of myocardial hypertrophy. In the present study, we generated a mouse model of transverse aortic constriction (TAC) to investigate whether hydrogen sulfide (H2S) has protective effects against cardiac hypertrophy. Left ventricular structure was analyzed by two-dimensional echocardiography. Oxidative stress was evaluated by measuring malondialdehyde, superoxide dismutase, glutathione peroxidase and reactive oxygen specie in the myocardium...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28421812/the-frequency-of-incidental-findings-and-subsequent-evaluation-in-low-dose-ct-scans-for-lung-cancer-screening
#8
Lillie Morgan, Humberto Choi, Michal Reid, Ali Khawaja, Peter J Mazzone
RATIONALE: The USPSTF recommends lung cancer screening with low-dose chest CT scans (LDCT) for a well-defined high-risk population. Data on the frequency and impact of incidental findings on LDCT scans performed within a centralized lung cancer screening program has not been reported. OBJECTIVES: Previous studies have reported IFs in the setting of clinical trials. We present our findings in a real clinical setting where the decision to manage these findings may depend on factors that are not captured in a research trial such as disclosing IFs, patient preferences, severity of comorbidities, and physician expertise...
April 19, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28415098/p569diastolic-dyssynchrony-is-associated-with-exercise-intolerance-in-hypertensive-patients-with-left-ventricular-hypertrophy
#9
I H Jung, H S Seo, M J Kim
Background: Left ventricular hypertrophy (LVH) is associated with intra-ventricular dyssynchrony at systolic phase during exercise in hypertensive patients. However, dypsnea on exertion is much more correlated with diastolic phase. We investigated whether LVH is associated with diastolic dyssynchrony during exercise in patients with hypertension. Methods: Ninety hypertensive patients with exertional dyspnea and 30 control individuals were enrolled. Exercise stress echocardiography was performed using a symptom limited, multistage supine bicycle test...
December 1, 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28415097/p544the-importance-of-contractile-reserve-when-assessing-asymptomatic-patients-with-aortic-stenosis
#10
J J Van Zalen, S Badiani, L Hart, A Marshall, N Patel, G Lloyd
Asymptomatic patients may exhibit symptoms during objective exercise testing, but whether symptoms are due to the obstructively of the valve (typified by the mean gradient) or underlying ventricular function remains unknown. While the mean gradient is an easy parameter to measure no consensus about the measurement of contractile reserve exists. Longitudinal abnormalities may occur in the presence of a normal ejection fraction and the augmentation of these parameters is poorly described. To obtain an objective regarding patients exercise ability is best determined using cardiopulmonary exercise testing...
December 1, 2016: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/28412430/incremental-prognostic-value-of-stress-echocardiography-with-carotid-ultrasound-for-suspected-cad
#11
Shahram Ahmadvazir, Benoy N Shah, Konstantinos Zacharias, Roxy Senior
OBJECTIVES: This study hypothesized that ischemia and atherosclerosis assessment by ultrasound (US) may provide incremental prognostic information in patients with new-onset chest pain who do not have coronary artery disease (CAD). BACKGROUND: The clinical significance of atherosclerosis assessment by carotid US in patients undergoing stress echocardiography (SE) in such patients is unknown. METHODS: Consecutive patients with suspected angina but no history of CAD underwent simultaneous SE and US prospectively to assess myocardial ischemia and carotid plaque burden (CPB), respectively...
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28412415/stress-echocardiography-carotid-arteries-and-more-its-versatility-for-our-imaging-times
#12
EDITORIAL
Eugenio Picano, Maria Chiara Scali
No abstract text is available yet for this article.
April 7, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28409033/aborted-sudden-cardiac-death-in-a-female-patient-presenting-with-takotsubo-like-cardiomyopathy-due-to-epicardial-coronary-vasospasm
#13
Sorin Giusca, Tom Eisele, Peter Nunninger, Benedikt Münz, Grigorios Korosoglou
Takotsubo cardiomyopathy is characterized by apical ballooning of the left ventricle (LV) in the absence of relevant coronary artery stenosis, which typically occurs in elderly women after emotional stress. Catecholamine cardiotoxicity, metabolic disturbance, and coronary microvascular impairment have previously been proposed as underlying pathophysiologic mechanisms of takotsubo cardiomyopathy, whereas myocardial stunning resulting from epicardial coronary artery vasospasm is not generally accepted as a cause of takotsubo cardiomyopathy...
2017: Case Reports in Cardiology
https://www.readbyqxmd.com/read/28405943/myocardial-oxidative-stress-correlates-with-left-ventricular-dysfunction-on-strain-echocardiography-in-a-rodent-model-of-sepsis
#14
Bereketeab Haileselassie, Erik Su, Iraklis Pozios, Diego F Niño, Hongyun Liu, Dai-Yin Lu, Ioannis Ventoulis, William B Fulton, Chhinder P Sodhi, David Hackam, Brian O'Rourke, Theodore Abraham
BACKGROUND: Recognition of cardiomyopathy in sepsis can be challenging due to the limitations of conventional measures such as ejection fraction (EF) and fractional shortening (FS) in the context of variable preload and afterload conditions. This study correlates myocardial function using strain echocardiography (SE) with cardiomyocyte oxidative stress in a murine model of sepsis. METHODS: C57BL/6J mice were randomized into control (n = 10), sham (n = 25), and a cecal ligation and puncture (CLP) (n = 33) model of sepsis...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28400922/pheochromocytoma-and-stress-cardiomyopathy-insight-into-pathogenesis
#15
Sahil Agrawal, Jamshid Shirani, Lohit Garg, Amitoj Singh, Santo Longo, Angelita Longo, Mark Fegley, Lauren Stone, Muhammad Razavi, Nicoleta Radoianu, Sudip Nanda
AIM: To investigate the occurrence of cardiomyopathy (CMP) in a cohort of patients with histologically proven pheochromocytoma (pheo), and to determine if catecholamine excess was causative of the left ventricular (LV) dysfunction. METHODS: A retrospective chart review spanning years 1998 through 2014 was undertaken and patients with a diagnosis of pheo confirmed with histopathologic examination were included. Presenting electrocardiograms and cardiac imaging studies were reviewed...
March 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28396860/aortic-valve-replacement-for-moderate-aortic-stenosis-with-severe-calcification-and-left-ventricualr-dysfunction-a-case-report-and-review-of-the-literature
#16
Nikhil Narang, Roberto M Lang, Vladimir M Liarski, Valluvan Jeevanandam, Marion A Hofmann Bowman
A 55-year-old man with a history of erosive, seropositive rheumatoid arthritis (RA), and interstitial lung disease presented with shortness of breath. Echocardiography showed new-onset severe left ventricular (LV) dysfunction with an ejection fraction (EF) of 15% and moderately increased mean aortic valve gradient of 20 mmHg in a trileaflet aortic valve with severe sclero-calcific degeneration. Coronary angiography revealed no significant obstructive coronary disease. Invasive hemodynamic studies and dobutamine stress echocardiography were consistent with moderate aortic stenosis...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28395958/relationship-between-exercise-pressure-gradient-and-haemodynamic-progression-of-aortic-stenosis
#17
Anne Ringle, Franck Levy, Pierre-Vladimir Ennezat, Caroline Le Goffic, Anne-Laure Castel, François Delelis, Aymeric Menet, Dorothée Malaquin, Pierre Graux, André Vincentelli, Christophe Tribouilloy, Sylvestre Maréchaux
BACKGROUND AND AIMS: We hypothesized that large exercise-induced increases in aortic mean pressure gradient can predict haemodynamic progression during follow-up in asymptomatic patients with aortic stenosis. METHODS: We retrospectively identified patients with asymptomatic moderate or severe aortic stenosis (aortic valve area<1.5cm(2) or<1cm(2)) and normal ejection fraction, who underwent an exercise stress echocardiography at baseline with a normal exercise test and a resting echocardiography during follow-up...
April 7, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28395912/dobutamine-stress-echocardiography-impact-of-abnormal-blood-potassium-levels-on-cardiac-arrhythmias
#18
Jared G Bird, Robert B McCully, Patricia A Pellikka, Garvan C Kane
BACKGROUND: Guidelines suggest that an abnormal blood potassium level is a relative contraindication to performing dobutamine stress echocardiography (DSE). However, this has not been previously studied. METHODS: We reviewed a consecutive series of patients who had potassium testing within 48 hours of undergoing DSE for the evaluation of myocardial ischemia over a 10-year period (N = 13,198). Normal potassium range in our laboratory is 3.6-5.2 mmol/L. Hemolyzed samples were not included...
April 7, 2017: Journal of the American Society of Echocardiography
https://www.readbyqxmd.com/read/28395281/the-role-of-stress-echocardiography-in-valvular-heart-disease-a-current-appraisal
#19
James L Gentry Iii, Dermot Phelan, Milind Y Desai, Brian P Griffin
Stress echocardiography is a widely available, safe, low-cost, versatile imaging modality which is becoming increasingly recognized as a valuable tool in the assessment of patients with native and prosthetic left-sided valvular heart disease. It provides a quantitative assessment to help guide clinical decision-making when discordance exists between symptoms and severity of valve disease. Exercise (treadmill or bicycle) remains the preferred stress modality, but pharmacological augmentation with dobutamine can be used if needed...
April 11, 2017: Cardiology
https://www.readbyqxmd.com/read/28389572/prognostic-value-of-noninvasive-cardiovascular-testing-in-patients-with-stable-chest-pain-insights-from-the-promise-trial
#20
Udo Hoffmann, Maros Ferencik, James E Udelson, Michael H Picard, Quynh A Truong, Manesh R Patel, Megan Huang, Michael J Pencina, Daniel B Mark, John F Heitner, Christopher B Fordyce, Patricia A Pellikka, Jean-Claude Tardif, Matthew J Budoff, George Nahhas, Benjamin J Chow, Andrzej S Kosinski, Kerry L Lee, Pamela S Douglas
Background -Optimal management of patients with stable chest pain relies on the prognostic information provided by noninvasive cardiovascular testing, but there are limited data from randomized trials comparing anatomic with functional testing. Methods -In the Prospective Multicenter Imaging Study for Evaluation of Chest Pain (PROMISE) trial, patients with stable chest pain and intermediate pre-test probability for obstructive coronary artery disease (CAD) were randomized to functional testing (exercise electrocardiography, nuclear stress, or stress echocardiography) or coronary computed tomography angiography (CTA)...
April 7, 2017: Circulation
keyword
keyword
2376
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"