• Strain rate imaging is a new echocardiographic modality that allows quantitative assessment of segmental myocardial contractility. (nih.gov)
  • A control beside echo showed a slightly improved contractility on dobutamine with an EF of 30%, an ITV of 14, and an IVC measured at 20 cm. (hindawi.com)
  • Low-dose dobutamine infusion is able to demonstrate the contractile reserve of myocardium as it shows an improved contractility following infusion of this positive inotropic drug. (escardio.org)
  • In those situations where increased contractility is not induced by dobutamine, this technique defines the corresponding segment as non-viable. (escardio.org)
  • Dobutamine increases myocardial contractility by stimulating beta-1 adrenergic receptors in the heart, and causes vasodilation by stimulating beta-2 adrenergic receptors in blood vessels, complemented by reflex vasoconstriction to the increase cardiac output. (the-medical-dictionary.com)
  • Background: The relationship between visual assessment and longitudinal strain during dobutamine stress echocardiography (DSE) remains poorly investigated. (ui.ac.id)
  • In 37 patients (age 58 +/- 9 years) with ischemic left ventricular dysfunction, myocardial viability was assessed using low-dose (10 microg/kg body weight per min) two-dimensional dobutamine stress echocardiography (DSE), tissue Doppler imaging, SRI and (18)F-fluorodeoxyglucose ((18)FDG) positron emission tomography (PET). (nih.gov)
  • The peak systolic tissue Doppler velocity and peak systolic myocardial strain rate were determined at baseline and during low-dose dobutamine stress from the apical views. (nih.gov)
  • the remainder underwent dobutamine-stress echocardiography. (medscape.com)
  • The author of this video presents dobutamine stress echocardiogram. (medtube.net)
  • Further functional imaging, in the form of a myocardial perfusion scan or a dobutamine stress echocardiogram were recommended if the test was inconclusive. (bjcardio.co.uk)
  • Among the techniques routinely used to detect the presence of viable myocardium, special mention should be made of dobutamine stress echocardiography (DSE), isotopic testing in the form of Thallium-201 redistribution scintigraphy and, more recently introduced, the myocardial contrast echocardiography (MCE) techniques and magnetic resonance. (escardio.org)
  • Indeed, comparative studies have been reported in which dysfunctional segments failing to respond to dobutamine (i.e., classified by dobutamine stress echocardiography as being non-viable) show thalium-201 uptake in redistribution, and are thus classified as viable by this test, highlighting the different sensitivity and specificity of both techniques. (escardio.org)
  • Dobutamine stress cardiovascular magnetic resonance (DS-CMR) is an established tool to assess hibernating myocardium and ischemia. (biomedcentral.com)
  • LV ejection fraction (EF) and volumes were analyzed at rest and during dobutamine stress (10 and 20 μg · kg -1 · min -1 ). (biomedcentral.com)
  • as well as during low and high dose dobutamine stress to assess myocardial hibernation and ischemia. (biomedcentral.com)
  • whether this approach would allow the response to dobutamine stress to be quantified [ 6 ]. (biomedcentral.com)
  • The aim of the current study was to determine the ability of CMR-FT for quantitative wall motion assessment at rest and during intermediate dose dobutamine stress in healthy volunteers. (biomedcentral.com)
  • OBJECTIVE -This study sought to determine whether stress echocardiography using exercise (when feasible) or dobutamine echo could be used to predict mortality in patients with diabetes. (diabetesjournals.org)
  • Stress echocardiography using exercise was performed in 333 patients able to exercise maximally, and dobutamine echo using a standard dobutamine stress was used in 604 patients. (diabetesjournals.org)
  • Finally, TDI and derived deformation parameters improve prognostic assessment during dobutamine stress echocardiography. (vendys2.com)
  • In vivo cardiac functional performance in response to dobutamine was determined by a computerized pressure-volume loop system. (cdc.gov)
  • Additionally, inhalation of MWCNTs also reduced cardiac stroke work, stroke volume, and output in response to dobutamine in anesthetized rats. (cdc.gov)
  • Previously, in the rapid access chest pain clinic (RACPC), patients referred by the GP with recent-onset chest pain underwent a clinical assessment, after which, an exercise tolerance test (ETT) was the first diagnostic test performed to diagnose myocardial ischaemia, generally during the same visit. (bjcardio.co.uk)
  • Nineteen patients (mean age 52 ± 10 years) underwent coronary angiography, low-dose dobutamine echocardiography and rest 99mTc sestamibi imaging within 10 days of myocardial infarction. (cnr.it)
  • Coronary microvascular function has important diagnostic and prognostic implications but routine assessment is difficult. (nih.gov)
  • The increase in the peak systolic strain rate during low-dose dobutamine stimulation allows accurate discrimination between different myocardial viability states. (nih.gov)
  • Strain rate imaging is superior to two-dimensional DSE and tissue Doppler imaging for the assessment of myocardial viability. (nih.gov)
  • We investigated the role of technetium-99m (99mTc) sestamibi cardiac imaging and dobutamine echocardiography in detecting myocardial viability early after acute myocardial infarction. (cnr.it)
  • As such, patients undergoing major non-cardiac vascular surgery should undergo a complete clinical assessment of comorbidities. (cadth.ca)
  • 4 Because of the high prevalence of symptomatic and asymptomatic coronary artery disease (CAD) in this patient population, the clinical assessment aims to identify patients at increased risk of cardiac complications and apply strategies to reduce this risk. (cadth.ca)
  • Four rates of cardiac output were induced by occlusion of the caudal vena cava, changes in depth of anesthesia, or administration of dobutamine. (avma.org)
  • 11) Assessment of systolic left ventricular function: a multi-centre comparison of cineventriculography, cardiac magnetic resonance imaging, unenhanced and contrast-enhanced echocardiography. (bracco.com)
  • 10. Baumgartner , Khan S, De Robertis , Czer L, Maurer G. Doppler assessment of prosthetic valve orifice area: An in vitro study. (meduniver.com)
  • Doppler echocardiographic assessment with the continuity equation of St. Jude Medical mechanical prostheses in the mitral valve position. (meduniver.com)
  • Doppler echocardiographic assessment of the St. Jude medical prosthetic valve in the aortic position using the continuity equation. (meduniver.com)
  • 21. Chambers J, Monaghan M, Jackson G. Colour flow Doppler mapping in the assessment of prosthetic valve regurgitation. (meduniver.com)
  • Abstract Tissue Doppler imaging (TDI) is evolving as a useful echocardiographic tool for quantitative assessment of left ventricular (LV) systolic and diastolic function. (vendys2.com)
  • Assessment of left ventricular systolic and diastolic function by Doppler tissue imaging in patients with preinfarction angina.Baykan M, Yilmaz R, Celik S, Orem C, Kaplan S, Erdol C.J Am Soc Echocardiogr. (vendys2.com)
  • Assessment of left ventricular diastolic function and the Tei index by tissue Doppler imaging in patients with primary hyperparathyroidism.Baykan M, Erem C, Erdogan T, Ersöz HO, Gedikli O, Korkmaz L, Kücükosmanoglu M, Haclhasanoglu A, Kaplan S, Celik S.Clin Endocrinol (Oxf). (vendys2.com)
  • Weaning from catecholamines, mechanical ventilation was started, and the patient was extubated on the fifth day under both low norepinephrine and dobutamine. (hindawi.com)
  • Dopamine was used in 8 patients, dobutamine in 5 patients, epinephrine in 2 patients, and norepinephrine in 2 patients. (cdc.gov)
  • You will take a drug, such as dobutamine or adenosine , that mimics the effect of exercise on the heart while you remain at rest throughout the test. (meds.wiki)
  • We evaluated whether left ventricular contractile reserve (CR), measured with strain imaging on dobutamine echocardiography (DSE), is a reliable non-invasive measure of coronary microvascular function. (nih.gov)
  • This study sought to evaluate whether objective assessment of the myocardial functional reserve, using strain rate imaging (SRI), allows accurate detection of viable myocardium. (nih.gov)
  • Assessing systolic or postsystolic strain by STE during early recovery after DSE helps detect hemodynamically significant CAD compared with visual assessment. (thoracickey.com)
  • Baseline assessment demonstrated that the majority of these patients were sedentary and had abnormal arterial health. (stanford.edu)
  • The study population consisted of consecutive surgical patients visiting the preoperative anaesthesia clinic for pre operative anaesthesia assessment except those excluded by the exclusion criteria. (org.pk)
  • For a probability of 10-29%, computerised tomography (CT) calcium scoring is recommended for an anatomical assessment of the coronary arteries, which might include a 64-slice CT angiogram, if the CT calcium score is between 1 to 400. (bjcardio.co.uk)
  • Analysis is typically based on visual assessment with considerable operator dependency. (biomedcentral.com)
  • Cardiovascular magnetic resonance (CMR) plays an increasingly important role in the diagnosis and assessment of coronary artery disease (CAD). (biomedcentral.com)
  • After initial fluid resuscitation, a more careful assessment of the patient's cardiovascular state is needed to determine the next line of therapy. (thegasmanhandbook.co.uk)
  • After this 30 ml/kg initial resuscitation, a more detailed assessment of the patient's cardiovascular state is needed if there is persisting hypoperfusion. (thegasmanhandbook.co.uk)
  • NICE updated guidelines in March 2010 for the assessment and diagnosis of people with recent-onset chest pain. (bjcardio.co.uk)
  • Deformation assessment of tagged lines within the myocardium may overcome these limitations however requires acquisition of additional tagging sequences and post processing [ 3 ]. (biomedcentral.com)
  • On admission to our ICU, the patient was still hypothermic with a temperature of 35°C with an improved hemodynamic status on 15 mcg/kg/min dobutamine (BP: 94/52 mmHg). (hindawi.com)
  • n 2010, the National Institute for Health and Care Excellence (NICE) introduced new guidelines for the assessment of people with recent-onset chest pain, recommending investigations based upon one's pre-test likelihood of having coronary artery disease. (bjcardio.co.uk)
  • Diagnostic testing, assessment, and education for people who are living with heart and / or lung disease. (albertahealthservices.ca)
  • Blood pressure assessment is particularly relevant in face of diseases known to raise blood pressure or effect heart structures such as chronic renal failure and hyperthyroidism. (vin.com)
  • There is also a lack of knowledge of current clinical protocols, on performing certain procedures, primary assessment and chest compressions, according to the new guidelines proposed by the American Heart Association which may lead to a poor quality of care. (bvsalud.org)
  • GBD 2017 provides a comprehensive assessment of cause-specific mortality for 282 causes in 195 countries and territories from 1980 to 2017. (typeset.io)
  • Association of Sequential Organ Failure Assessment (SOFA) components with mortality. (unibe.ch)
  • This edition is the outcome of 18 years of work by a renowned radiological team whose research focuses specifically on vascular pathology of the whole body and the role of CT angiography in its assessment. (nshealth.ca)
  • Turning to the main medications administered during CPR in newborns, the adrenaline was the drug of choice, followed by atropine, bicarbonate and dobutamine. (bvsalud.org)
  • The electronic densities of dobutamine calculation at oxidation and reduction state in HOMO and LUMO proved that energies of dobutamine LUMO in oxidation form are lower than dobutamine LUMO in reduction. (ac.ir)
  • Therefore, the electron transfer from HOMO to LUMO in dobutamine oxidation form is easier than in dobutamine reduction form. (ac.ir)