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https://www.readbyqxmd.com/read/28325613/head-to-head-comparison-of-the-diagnostic-performance-of-coronary-computed-tomography-angiography-and-dobutamine-stress-echocardiography-in-the-evaluation-of-acute-chest-pain-with-normal-ecg-findings-and-negative-troponin-tests-a-prospective-multicenter-study
#1
Eric Durand, Fabrice Bauer, Nicolas Mansencal, Arshid Azarine, Benoit Diebold, Albert Hagege, Ludivine Perdrix, Martine Gilard, Yannick Jobic, Hélène Eltchaninoff, Mourad Bensalah, Benjamin Dubourg, Jérôme Caudron, Ralph Niarra, Gilles Chatellier, Jean-Nicolas Dacher, Elie Mousseaux
OBJECTIVE: To perform a head-to-head comparison of coronary CT angiography (CCTA) and dobutamine-stress echocardiography (DSE) in patients presenting recent chest pain when troponin and ECG are negative. METHODS: Two hundred seventeen patients with recent chest pain, normal ECG findings, and negative troponin were prospectively included in this multicenter study and were scheduled for CCTA and DSE. Invasive coronary angiography (ICA), was performed in patients when either DSE or CCTA was considered positive or when both were non-contributive or in case of recurrent chest pain during 6month follow-up...
March 2, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28325519/myocardial-contractile-reserve-predicts-left-ventricular-reverse-remodeling-and-cardiac-events-in-dilated-cardiomyopathy
#2
Ryota Morimoto, Takahiro Okumura, Akihiro Hirashiki, Hideki Ishii, Takeo Ichii, Soichiro Aoki, Kenji Furusawa, Hiroaki Hiraiwa, Toru Kondo, Naoki Watanabe, Naoaki Kano, Kenji Fukaya, Akinori Sawamura, Kyosuke Takeshita, Yasuko K Bando, Toyoaki Murohara
BACKGROUND: Catecholamine sensitivity estimated using a dobutamine stress test (DST) is recognized as a measure of the beta-adrenergic myocardial contractile reserve, which is involved with left ventricular reverse remodeling (LV-RR). We investigated whether the prognostic ability of the DST for LV-RR could predict cardiac events. METHODS: There was a total of 192 enrolled patients with dilated cardiomyopathy (DCM). DCM was defined as a LV ejection fraction (LV-EF) ≤45% and LV end-diastolic dimension (LVDd) ≥55mm...
March 18, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28321803/prognosis-of-cirrhotic-patients-admitted-to-intensive-care-unit-a-meta-analysis
#3
Delphine Weil, Eric Levesque, Marc McPhail, Rodrigo Cavallazzi, Eleni Theocharidou, Evangelos Cholongitas, Arnaud Galbois, Heng Chih Pan, Constantine J Karvellas, Bertrand Sauneuf, René Robert, Jérome Fichet, Gaël Piton, Thierry Thevenot, Gilles Capellier, Vincent Di Martino
BACKGROUND: The best predictors of short- and medium-term mortality of cirrhotic patients receiving intensive care support are unknown. METHODS: We conducted meta-analyses from 13 studies (2523 cirrhotics) after selection of original articles and response to a standardized questionnaire by the corresponding authors. End-points were in-ICU, in-hospital, and 6-month mortality in ICU survivors. A total of 301 pooled analyses, including 95 analyses restricted to 6-month mortality among ICU survivors, were conducted considering 249 variables (including reason for admission, organ replacement therapy, and composite prognostic scores)...
December 2017: Annals of Intensive Care
https://www.readbyqxmd.com/read/28321497/intra-procedural-determination-of-viability-by-myocardial-deformation-imaging-a-randomized-prospective-study-in-the-cardiac-catheter-laboratory
#4
Alexander Schuh, Vadim Karayusuf, Ertunc Altiok, Sandra Hamada, Jörg Schröder, Andras Keszei, Malte Kelm, Matias de la Fuente, Michael Frick, Klaus Radermacher, Nikolaus Marx, Michael Becker
BACKGROUND: The benefit of revascularization for functional recovery depends on the presence of viable myocardial tissue. OBJECTIVE: Myocardial deformation imaging allows determination of myocardial viability. METHODS: In a first approach, we assessed the optimal cutoff value to determine preserved viability by layer-specific echocardiographic myocardial deformation imaging at rest and low-dose dobutamine (DSE) echocardiography: regional endocardial circumferential strain (eCS) <-19% at rest was as accurate as eCS at DSE...
March 20, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28320571/incidental-intraoperative-diagnosis-of-subvalvular-mitral-stenosis-with-a-dobutamine-stress-echocardiogram
#5
Michael Essandoh, Juan Crestanello, Amar Bhatt, Manoj Iyer, Hamdy Awad, Emile G Daoud
No abstract text is available yet for this article.
December 16, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28256176/stress-cardiovascular-magnetic-resonance-imaging-current-and-future-perspectives
#6
REVIEW
Thu-Thao Le, Weiting Huang, Jennifer Ann Bryant, Stuart Alexander Cook, Calvin Woon-Loong Chin
Vasodilator and dobutamine are the main pharmacological agents used in current stress cardiovascular magnetic resonance (CMR). Exercise stress has well-established advantages and it is commonly used in other stress imaging, but the technical considerations have limited its use in stress CMR. In this review, we will describe the diagnostic performance, prognostic value, strengths and challenges of current stress CMR techniques. We will also discuss future perspectives of exercise stress CMR. Areas covered: Despite notable mechanistic differences, vasodilator and dobutamine stress CMR offer similar diagnostic and prognostic value in coronary artery disease...
March 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28247428/predictors-and-prognostic-significance-of-atrial-fibrillation-developed-during-dobutamine-stress-echocardiography-a%C3%A2-propensity-score-matched-comparison
#7
Yuba Acharya, Sahil Agrawal, Junu Bhattarai, Vlad Cotarlan, Jamshid Shirani
AIMS: Atrial fibrillation (AF) uncommonly occurs during dobutamine stress echocardiography (DSE). We aimed to characterize the predictors and long-term prognostic significance of AF during DSE. METHODS: The clinical, echocardiographic, and outcome data of patients in sinus rhythm who developed AF during DSE were reviewed and compared to a propensity score-matched group of controls. RESULTS: Atrial fibrillation developed in 73 (1% of 7026) patients (age 70±10 years, 58% men)...
March 2017: Echocardiography
https://www.readbyqxmd.com/read/28220640/multidimensional-contractile-reserve-predicts-adverse-outcome-in-patients-with-severe-systolic-heart-failure-a-4-year-follow-up-study
#8
Ioannis A Paraskevaidis, Ignatios Ikonomidis, Panagiotis Simitsis, John Parissis, Vasilios Stasinos, George Makavos, John Lekakis
AIMS: Left ventricular contractile reserve is a prognostic indicator for adverse outcome in patients with severe chronic heart failure with reduced ejection fraction (HFrEF). We investigated the dobutamine-induced changes of LV multidimensional deformation and their predictive value for cardiac mortality of patients with severe chronic HFrEF. METHODS AND RESULTS: In this prospective study, out of 130 patients with severe HFrEF who underwent a low-dose dobutamine stress echocardiography (LDSE) study using speckle tracking imaging, 100 patients were followed up for the occurrence of cardiac death over a period of 4 years...
February 21, 2017: European Journal of Heart Failure
https://www.readbyqxmd.com/read/28219921/predictive-value-of-dobutamine-stress-perfusion-echocardiography-in-contemporary-end-stage-liver-disease
#9
Bipul Baibhav, Chetaj A Mahabir, Feng Xie, Valerie K Shostrom, Timothy M McCashland, Thomas R Porter
BACKGROUND: The assessment of cardiac risk in contemporary liver transplantation (LT) has required more sensitive testing for the detection of occult coronary artery disease as well as microvascular and functional cardiac abnormalities. Because dobutamine stress perfusion echocardiography provides an assessment of both regional systolic and diastolic function as well as microvascular perfusion (MVP), we sought to examine its incremental value in this setting. METHODS AND RESULTS: We evaluated the predictive value of dobutamine stress perfusion echocardiography in 296 adult patients with end-stage liver disease and preserved systolic function who underwent LT between 2008 and 2014...
February 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28219811/stress-echocardiography-in-patients-who-experienced-mechanical-ventilation-weaning-failure
#10
Manuel Ruiz-Bailén, Jesús Cobo-Molinos, Ana Castillo-Rivera, María Dolores Pola-Gallego-de-Guzmán, Antonio Cárdenas-Cruz, Antonio Martínez-Amat, María Sevilla-Martínez, Clara Hernández-Caballero
INTRODUCTION: Critically ill patients may suffer varying degrees of temporary myocardial dysfunction during respiratory weaning that could play an important role in weaning failure. OBJECTIVES: In this study, we tried to assess the existence of temporary diastolic dysfunction during respiratory weaning. METHODS: Inclusion period is from 2006 to 2015. In this study, we included 181 ventilated patients with cardiogenic shock that were being weaned from mechanical ventilation...
January 18, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28214966/anomalous-coronary-arteries-and-myocardial-bridges-risk-stratification-in-children-using-novel-cardiac-catheterization-techniques
#11
Hitesh Agrawal, Silvana Molossi, Mahboob Alam, S Kristen Sexson-Tejtel, Carlos M Mery, E Dean McKenzie, Charles D Fraser, Athar M Qureshi
The evaluation of the vast majority of children with anomalous aortic origin of a coronary artery (AAOCA) and/or myocardial bridges is performed with non-invasive testing. However, a subset of these patients may benefit from invasive testing for risk stratification. All patients included in the Coronary Anomalies Program (CAP) at Texas Children's Hospital who underwent cardiac catheterization were included. Techniques included selective coronary angiograms (SCA), intravascular ultrasound (IVUS), and fractional flow reserve (FFR) measurements with provocative testing using adenosine and/or dobutamine infusions...
February 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28212149/new-developments-for-the-detection-and-treatment-of-cardiac-vasculopathy
#12
Kevin J Clerkin, Ziad A Ali, Donna M Mancini
PURPOSE OF REVIEW: Cardiac allograft vasculopathy (CAV) is a major limitation to long-term survival after heart transplantation. Innovative new techniques to diagnose CAV have been applied to detect disease. This review will examine the current diagnostic and treatment options available to clinicians for CAV. RECENT FINDINGS: Diagnostic modalities addressing the pathophysiology underlying CAV (arterial wall thickening and decreased coronary blood flow) improve diagnostic sensitivity when compared to traditional (angiography and dobutamine stress echocardiography) techniques...
February 15, 2017: Current Opinion in Cardiology
https://www.readbyqxmd.com/read/28208977/comparison-of-levosimendan-milrinone-and-dobutamine-in-treating-low-cardiac-output-syndrome-following-valve-replacement-surgeries-with-cardiopulmonary-bypass
#13
Sunny, Mohd Yunus, Habib Md Reazaul Karim, Manuj Kumar Saikia, Prithwis Bhattacharyya, Samarjit Dey
INTRODUCTION: Low Cardiac Output Syndrome (LCOS) following Cardiopulmonary Bypass (CPB) is common and associated with increased mortality. Maintenance of adequate cardiac output is one of the primary objectives in management of such patients. AIM: To compare Levosimendan, Milrinone and Dobutamine for the treatment of LCOS after CPB in patients who underwent valve replacement surgeries. MATERIALS AND METHODS: Sixty eligible patients meeting LCOS were allocated into three treatment groups: Group A-Levosimendan (loading dose 10μg/kg over 10 minutes, followed by 0...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28192951/identification-and-quantification-of-intravenous-therapy-drugs-using-normal-raman-spectroscopy-and-electrochemical-surface-enhanced-raman-spectroscopy
#14
Stephanie Zaleski, Kathleen A Clark, Madison M Smith, Jan Y Eilert, Mark Doty, Richard P Van Duyne
Errors in intravenous (IV) drug therapies can cause human harm and even death. There are limited label-free methods that can sensitively monitor the identity and quantity of the drug being administered. Normal Raman spectroscopy (NRS) provides a modestly sensitive, label-free, and completely noninvasive means of IV drug sensing. In the case that the analyte cannot be detected within its clinical range with Raman, a label-free surface-enhanced Raman spectroscopy (SERS) approach can be implemented to detect the analyte of interest...
January 30, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28183438/cardiac-imaging-for-assessing-low-gradient-severe-aortic-stenosis
#15
REVIEW
Marie-Annick Clavel, Ian G Burwash, Philippe Pibarot
Up to 40% of patients with aortic stenosis (AS) harbor discordant Doppler-echocardiographic findings, the most common of which is the presence of a small aortic valve area (≤1.0 cm(2)) suggesting severe AS, but a low gradient (<40 mm Hg) suggesting nonsevere AS. The purpose of this paper is to present the role of multimodality imaging in the diagnostic and therapeutic management of this challenging entity referred to as low-gradient AS. Doppler-echocardiography is critical to determine the subtype of low-gradient AS: that is, classical low-flow, paradoxical low-flow, or normal-flow...
February 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/28165159/assessment-of-myocardial-ischemia-by-strain-dobutamine-stress-echocardiography-and-cardiac-magnetic-resonance-perfusion-imaging-before-and-after-coronary-artery-bypass-grafting
#16
Assami Rösner, Henrik Schirmer, Amjid Iqbal, Bart Bijnens, Derk Avenarius, Siri Malm
BACKGROUND: Following coronary artery bypass grafting (CABG), testing for myocardial ischemia by noninvasive imaging is often hampered by false-positive results. The aim of this study was to find test parameters with the best potential to identify myocardial ischemia in post-CABG patients. METHODS: Fifty-two consecutive patients scheduled for CABG, underwent both dobutamine stress echocardiography (DSE) and cardiac magnetic resonance first-pass perfusion imaging (CMR-FPPI) with adenosine vasodilation, before and 8-10 months after the surgical revascularization...
February 6, 2017: Echocardiography
https://www.readbyqxmd.com/read/28153346/usefulness-for-predicting-cardiac-events-after-orthotopic-liver-transplantation-of-myocardial-perfusion-imaging-and-dobutamine-stress-echocardiography-preoperatively
#17
David Snipelisky, Jordan Ray, Saraschandra Vallabhajosyula, Gautam Matcha, Samuel Squier, Jacob Lewis, Rex Holliday, Niti Aggarwal, J Wells Askew, Brian Shapiro, Nandan Anavekar
Patients undergoing orthotopic liver transplantation have high rates of cardiac morbidity and mortality. Although guidelines recommend noninvasive stress testing as part of the preoperative evaluation, little data have evaluated clinical outcomes following orthotopic liver transplantation. A retrospective study at 2 high-volume liver transplantation centers was performed. All patients undergoing noninvasive stress testing (myocardial perfusion imaging [MPI] or dobutamine stress echocardiography [DSE]) over a 5-year period were included...
April 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28144392/vasopressin-use-in-critically-ill-cirrhosis-patients-with-catecholamine-resistant-septic-shock-the-cvicu-cohort
#18
Lukasz A Myc, Jonathan G Stine, Rinita Chakrapani, Alexandra Kadl, Curtis K Argo
AIM: To examine patient-centered outcomes with vasopressin (AVP) use in patients with cirrhosis with catecholamine-refractory septic shock. METHODS: We conducted a single center, retrospective cohort study enrolling adult patients with cirrhosis treated for catecholamine-resistant septic shock in the intensive care unit (ICU) from March 2011 through December 2013. Other etiologies of shock were excluded. Multivariable regression models were constructed for seven and 28-d mortality comparing AVP as a second-line therapy to a group of all other vasoactive agents...
January 18, 2017: World Journal of Hepatology
https://www.readbyqxmd.com/read/28144259/variability-of-longitudinal-strain-in-left-ventricular-segments-supplied-by-non-stenosed-coronary-artery-insights-from-speckle-tracking-analysis-of-dobutamine-stress-echocardiograms-in-patients-with-high-coronary-risk-profile
#19
Karina Wierzbowska-Drabik, Michał Plewka, Jarosław D Kasprzak
INTRODUCTION: Although global deformation parameters have been increasingly used for myocardial function analysis, there are sparse data concerning segmental deformation of the left ventricle (LV). Moreover, some studies suggest heterogeneity of strain among LV segments, which may be especially significant during stress echocardiography. We assessed quantitatively regional LV function in the setting of dobutamine stress echocardiography (DSE), to examine differences of longitudinal strain between basal, mid and apical LV segments and to compare variability of regional deformation between rest and the peak stage of DSE...
February 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28137353/management-of-neonatal-hypotension
#20
Brian T Kalish
Hypotension is a common problem in neonates with complex underlying pathophysiology. Although treatment of low blood pressure is common, clinicians must use all available information to target neonates with compromised perfusion. Pharmacotherapy should be tailored to the specific physiologic perturbations of the individual neonate. Dopamine is the most commonly utilized agent and may be the most appropriate agent for septic shock with low diastolic blood pressure. However, alternative therapies should be considered for other etiologies of hypotension, including milrinone and vasopressin for persistent pulmonary hypertension of the newborn and dobutamine for patent ductus arteriosus...
January 1, 2017: Neonatal Network: NN
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