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Coisne D - - 2001
AIMS: This study investigated the role of dobutamine stress echocardiography for the silent diagnosis of myocardial ischemia in a diabetic population. Results from the stress test were compared between diabetic and nondiabetic groups. METHODS: Forty-nine diabetics and 63 consecutive nondiabetics underwent dobutamine stress echocardiography between April and December 1999, to ...
Relevancy Score: Relevancy Score: 519
Kuijpers Dirkjan - - 2005
Dobutamine-stress cardiovascular magnetic resonance (CMR) is a new diagnostic tool for the non-invasive detection of coronary artery disease. Technological advances in CMR have evolved this technique to an adequate alternative to the standard cardiac stress tests. Its high reproducibility and excellent image quality of the anatomical features of the left ...
Relevancy Score: Relevancy Score: 519
Karzai W - - 1996
We have studied the effects of flow and dobutamine on systemic haemodynamic variables, oxygen delivery (DO2) and oxygen consumption (VO2) in 20 patients during cardiopulmonary bypass (CPB) with mild hypothermia (34 degrees C). In a subgroup of seven patients, we also studied the effects on gastric microcirculatory blood flow (MCF) ...
Relevancy Score: Relevancy Score: 519
Otto C W - - 1981
Two new catecholamines, dopamine and dobutamine, have found widespread use for cardiovascular support. The relative efficacy of these drugs in aiding resuscitation from cardiopulmonary arrest is unknown. Dogs were subjected to either asphyxial or fibrillatory cardiac arrest. Resuscitation was attempted with artificial ventilation, closed chest cardiac massage, and one of ...
Relevancy Score: Relevancy Score: 519
Pennell D J - - 1991
Magnetic resonance imaging is a new technique for the investigation of cardiac anatomy and function, but few attempts have been made to assess its value in the evaluation of coronary artery disease because of the problems of performing exercise in the magnet. In this review, we describe our experience using ...
Relevancy Score: Relevancy Score: 519
Schwenzer K J - - 1989
Mitral valve replacement is frequently complicated by a low cardiac output syndrome and elevated pulmonary arterial pressures. In the present study, we used dobutamine to increase cardiac index and measured the pulmonary hemodynamic effects in 10 patients with increased pulmonary vascular tone following mitral valve replacement. Using increasing doses of ...
Relevancy Score: Relevancy Score: 519
Fujii Y - - 1993
The effects of dobutamine (DOB) on diaphragmatic fatigue were examined in 20 anaesthetized, mechanically ventilated dogs. Animals were divided into two groups: the DOB group (n = 10) and the control group (n = 10). Diaphragmatic fatigue was induced by intermittent supramaximal electric stimulation applied to bilateral phrenic nerves at ...
Relevancy Score: Relevancy Score: 519
Gouin F - - 1978
A study of the development of intra-pulmonary shunts was carried out in ten subjects following an intra-venous administration of a 7.5 microgram/kg/min dose of dobutamine by electric syringe. All the subjects were on a respirator (FiO2=0,6 most often) and frequently with P.E.E.P. The shunts were determined at the FiO2 by ...
Relevancy Score: Relevancy Score: 519
Fennich Nada - - 2013
Stress echocardiography is a valuable tool for the noninvasive diagnosis of ischemic heart disease. Despite its widely use in the clinical practice, safety and side effects profile have never been evaluated in Moroccans.The aim: To assess the safety and tolerability of the two stress echo modalities in Moroccans. The study ...
Relevancy Score: Relevancy Score: 518
Bader Feras M - - 2010
Few data exist on the safety of transferring patients to standard oral therapy for chronic heart failure (CHF) after acute management with inotropic agents. This study compares hemodynamic responses and cardiac dysrhythmic effects of continuous infusion of enoximone, dobutamine, or placebo in patients with moderate to severe CHF. The authors ...
Relevancy Score: Relevancy Score: 518
Varga A - - 1999
BACKGROUND: Several studies have demonstrated a consistently high sensitivity of dobutamine echocardiography whereas test specificity in these series has been variable. The aim of this study was to evaluate whether coronary vasospasm--elicited by alpha1 adrenoreceptor stimulation--may be a significant source of false positive responses during dobutamine stress. METHODS: From the ...
Relevancy Score: Relevancy Score: 518
Smolich J J - - 2000
Little is known about the changes in systemic and pulmonary vascular responses to dobutamine that occur during postnatal development. To address this question, vascular pressures and cardiac output were measured in anesthetized 1- to 2-d-old (n = 6), 7- to 10-d-old (n = 7), and 6- to 8-wk-old lambs (n ...
Relevancy Score: Relevancy Score: 518
Heinle S K - - 1993
To determine the usefulness of dobutamine stress echocardiography for detecting restenosis after percutaneous transluminal coronary angioplasty, the results of coronary arteriography and dobutamine stress echocardiography were compared in 103 patients 6 months after percutaneous transluminal coronary angiography. The dobutamine stress echocardiograms were obtained on the same day as the coronary ...
Relevancy Score: Relevancy Score: 518
McKirnan M D - - 1989
The effects of chronic dobutamine administration on haemodynamic and metabolic responses to submaximal and maximal exercise were studied in dogs. Dobutamine was infused at a rate of 40 micrograms/kg min-1, 2 h day-1, 5 days week-1 for a period of 6 weeks. Acute infusion of dobutamine for 1 h increased ...
Relevancy Score: Relevancy Score: 518
Buttrick P - - 1988
We have previously shown that physical conditioning in the rat improves cardiac mechanics and biochemistry and normalizes the cardiac contractile protein abnormalities associated with renovascular hypertension. Since chronic adrenergic stimulation with dobutamine simulates some aspects of physical conditioning, this study was undertaken to investigate the effects of chronic dobutamine administration ...
Relevancy Score: Relevancy Score: 518
Uretsky B F - - 1986
The peak hemodynamic effect and hormonal response of the phosphodiesterase inhibitor enoximone (MDL 17,043) were compared with those of dobutamine in 10 patients with severe congestive heart failure. Both agents significantly (p less than 0.05) increased cardiac index, stroke volume index and heart rate. Enoximone tended to decrease mean systemic ...
Relevancy Score: Relevancy Score: 518
van de Borne P - - 1999
The contributions of increases in circulating catecholamines, changes in central command, and muscle afferents on baroreflex control of the sinus node during exercise are unclear. We used a dobutamine infusion to induce hemodynamic changes comparable to those of moderate physical exercise in the absence of changes in central command and ...
Relevancy Score: Relevancy Score: 518
Lalka S G - - 1992
Two-dimensional echocardiography can detect regional wall motion abnormalities resulting from myocardial ischemia produced by dobutamine infusion. In 60 patients undergoing elective aortic surgery (27 with aneurysms, 33 with occlusive disease), we evaluated the ability of dobutamine stress echocardiography to predict perioperative cardiac events. Echo images were obtained at rest and ...
Relevancy Score: Relevancy Score: 518
Tan L B - - 1991
Dopexamine hydrochloride is a novel compound with properties of DA1-dopaminergic and beta 2-adrenergic receptor agonism and neuronal noradrenaline uptake inhibition. It has been shown to produce beneficial renal and haemodynamic effects in patients with severe heart failure. We compared the haemodynamic effects of dopexamine (0.5 to 6 micrograms/kg/min) with those ...
Relevancy Score: Relevancy Score: 518
Aoyagi T - - 1992
The shortening- and shortening rate-preload-afterload relations, based on the concept of the myocardial end-systolic stress-strain relation (ESSSR), are a newly developed load- and size-independent assessment of myocardial contractility. The purpose of this study was to apply this assessment to compare extent and velocity of myocardial contraction during graded infusions of ...
Relevancy Score: Relevancy Score: 518
Hashimoto Y - - 1996
To investigate the relationship between left ventricular cavity geometry and dynamic intracavitary left ventricular obstruction occurring during dobutamine stress echocardiography, we evaluated 44 patients who underwent dobutamine stress echocardiography. Dynamic intracavitary left ventricular obstruction appeared in 10 (23%) patients (Group 1), and was absent in the remaining 34 patients (Group ...
Relevancy Score: Relevancy Score: 518
Vasquez Alejandro - - 2004
OBJECTIVES: This study was designed to determine the optimal dose of dobutamine in the treatment of post-resuscitation left ventricular dysfunction. BACKGROUND: Global left ventricular dysfunction following successful resuscitation from prolonged, ventricular fibrillation cardiac arrest, negatively impacts long-term survival. Dobutamine can overcome this global myocardial stunning. Previous data indicate a dose ...
Relevancy Score: Relevancy Score: 518
Vincent Caitlin J - - 2009
OBJECTIVE: To characterize the cardiopulmonary effects of dobutamine and norepinephrine infusion in isoflurane-anesthetized healthy alpacas. ANIMALS: 8 adult alpacas. PROCEDURES: Initial baseline cardiovascular, respiratory, and metabolic variables were obtained 30 minutes after induction of isoflurane anesthesia in 8 alpacas (3 females and 5 sexually intact males). Four treatments (dobutamine at ...
Relevancy Score: Relevancy Score: 518
Aranda Juan M JM - - 2003
BACKGROUND: The use of dobutamine or milrinone for inotropic support in patients with heart failure awaiting cardiac transplantation is largely arbitrary and based on institutional preference. The costs and effectiveness of these drugs have yet to be compared in a prospective, randomized study. METHODS: We compared clinical outcomes and costs ...
Relevancy Score: Relevancy Score: 518
Yang Yi - - 2002
AIM: To compare the effect of norepinephrine-dobutamine with dopamine alone on splanchnic perfusion in sheep with septic shock. METHODS: Twenty sheep with septic shock induced by lipopolysaccharides were divided into two groups. When systolic pressure decreased by 5.3 kPa, basic values of hemodynamic parameters and intestinal intramucosal pH (pHi) were ...
Relevancy Score: Relevancy Score: 518
Lieberman E B - - 1995
The development of hypotension during various exercise stress tests has been correlated with the presence of multivessel coronary artery disease and impaired left ventricular contractility. Hypotension may also occur during dobutamine stress echocardiography; however, its anatomic and functional significance remains unknown. As part of an ongoing study of restenosis, dobutamine ...
Relevancy Score: Relevancy Score: 518
Akosah K O - - 1994
Coronary artery disease has emerged as the leading cause of late morbidity and mortality in heart transplant recipients. The incidence of allograft coronary artery disease has been reported to be as high as 40% to 50% by 5 years. Coronary angiography remains the standard approach for surveillance of coronary artery ...
Relevancy Score: Relevancy Score: 518
Baig M W - - 1992
Dobutamine stress thallium scintigraphy is a non-exercise stress technique used in the assessment of myocardial ischaemia. Non-exercise techniques are independent of the patient's exercise capacity or the subjective development of limiting symptoms. Preliminary data are presented regarding the effects of graded infusions of dobutamine (maximum 20 micrograms/kg/min) in seven consecutive ...
Relevancy Score: Relevancy Score: 518
Lee John H - - 2008
BACKGROUND: Chest pain occurs frequently during dobutamine stress testing and is commonly attributed to ischemia. However, the pathophysiologic significance of dobutamine-induced chest pain is uncertain. The purpose of this study is to explore the correlation between dobutamine-induced chest pain and evidence of ischemia on myocardial perfusion imaging (MPI). METHODS AND ...
Relevancy Score: Relevancy Score: 518
Zhou Shao-Xia - - 2002
AIM: To compare the effects of dopamine, norepinephrine, epinephrine, and the combination of norepinephrine and dobutamine on systemic and gastric mucosal oxygen metabolism in patients with septic shock. METHODS: Sixteen patients with septic shock were enrolled in the present study. Each patient received dopamine firstly, then in a random succession ...
Relevancy Score: Relevancy Score: 518
Sharp S M - - 1994
OBJECTIVES: This study attempted to determine the safety and accuracy of dobutamine stress echocardiography for detection of coronary artery disease in patients with dilated cardiomyopathy. BACKGROUND: Detection of regional wall motion abnormalities at rest does not reliably distinguish ischemic from nonischemic cardiomyopathy. Previous studies have shown that dobutamine stress echocardiography ...
Relevancy Score: Relevancy Score: 518
Boord Angela - - 2007
PURPOSE: The occurrence of myoclonus associated with continuous i.v. infusion of dobutamine in a patient with end-stage renal disease (ESRD) is described. SUMMARY: A 65-year-old Caucasian man was admitted to the hospital on January 26, 2006, for worsening congestive heart failure (CHF). He had been receiving dobutamine 3 mug/kg/min by ...
Relevancy Score: Relevancy Score: 518
Davidson W R WR - - 1986
To investigate dobutamine-induced cardiac adaptations, we compared dobutamine-treated with swim-trained and sedentary control rats. After 14 wk of treatment, heart rate was lower in the dobutamine-treated (279 +/- 6) and exercise-trained (287 +/- 4 beats/min) groups than in the control animals (305 +/- 3 beats/min; P less than 0.05). The ...
Relevancy Score: Relevancy Score: 518
Oriowo M A - - 1999
(+/-)-Dobutamine at concentrations < or =10(-5) M did not evoke contractions of rat gastric artery segments. However, when the tissues were contracted with methoxamine, (+/-)-dobutamine evoked concentration-dependent relaxation. The relaxant responses were not significantly affected by propranolol. In the same preparation, propranolol competitively antagonized isoprenaline-induced relaxation with a -log K(B) ...
Relevancy Score: Relevancy Score: 518
De Vriese An S - - 2009
Screening for coronary artery disease (CAD) in hemodialysis patients is hampered by contraindications and/or limitations of the available techniques in this population. Myocardial perfusion scintigraphy (MPS) using dipyridamole has been considered inaccurate due to abnormally high basal levels of adenosine in uremia that could blunt the vasodilatory response. Since dobutamine ...
Relevancy Score: Relevancy Score: 518
Berré J - - 1994
PURPOSE: Both dobutamine and prostacyclin (PGI2) have been used to increase oxygen delivery in septic patients, but their effects on cerebral blood flow have not been well studied. METHODS: In 10 septic patients with altered mental status, stable hemodynamic status, and normal lactatemia, we investigated the effects of successive infusions ...
Relevancy Score: Relevancy Score: 518
Cotrim Carlos - - 2002
The development of intraventricular gradients during dobutamine stress echocardiography has been widely reported and this finding is commonly associated with symptoms during stress testing. In a previous study, we investigated the incidence of intraventricular gradients during dobutamine stress echocardiography in 46 patients and concluded that they occur frequently (43%). In ...
Relevancy Score: Relevancy Score: 518
Li Chi-Yuan - - 2003
It has been reported that, in patients with acute myocardial infarction or congestive heart failure, monocyte chemoattractant protein-1 (MCP-1) plays an important role in the development of inflammatory responses and that the level of MCP-1 is correlated with the severity of the disease. We conducted this study to investigate the ...
Relevancy Score: Relevancy Score: 518
Lowes B D BD University of Colorado Health Sciences Center, Denver, Colorado, CO 80262, USA. - - 2001
To compare the efficacy of milrinone and dobutamine in patients chronically treated with carvedilol. Milrinone and dobutamine are used to manage decompensated heart failure, but their efficacy in patients on beta-blocker therapy was unknown. Twenty patients with decompensated heart failure were prospectively enrolled. Inotropic responses to milrinone (12.5, 25 or ...
Relevancy Score: Relevancy Score: 518
Tarján J - - 1998
It is known that intermittent dobutamine therapy improves the symptoms and physical condition of patients with chronic heart failure, but its arrhythmogenic effect is insufficiently described. The aim of this study was to assess ventricular arrhythmias and the condition of patients before, during, and after intermittent dobutamine therapy. The 23 ...
Relevancy Score: Relevancy Score: 518
Lagudis Sofia - - 2009
The effect of dobutamine on carotid and brachial arteries compliance and the association of L-arginine as a potential nitric oxide pathway restorer were evaluated in patients with heart failure. Twenty-seven outpatients participated. Drugs used for the treatment of heart failure were withheld at least 24 hours before the study. The ...
Relevancy Score: Relevancy Score: 516
Fink Tobias - - 2013
Dobutamine is recommended for the treatment of sepsis related circulatory failure in international guidelines. Further, dobutamine has been demonstrated to improve liver function and hepatic perfusion after experimental hemorrhagic shock. Yet, it is unknown whether dobutamine may also induce hepatoprotective effects in sepsis. This study was designed to investigate the ...
Relevancy Score: Relevancy Score: 516
Gerhard Tobias - - 2006
STUDY OBJECTIVE: To model the cost-effectiveness of nesiritide compared with dobutamine in patients with decompensated heart failure. DESIGN: Cost-effectiveness analysis. MEASUREMENTS AND MAIN RESULTS: A decision tree model was derived from randomized clinical trial data and data from a previously published economic study. Four cost-effectiveness analyses were performed: analysis 1 ...
Relevancy Score: Relevancy Score: 515
Stanek B - - 1999
BACKGROUND: Prostaglandin E1 (PGE1) and prostacyclin have potent pulmonary and systemic vasodilating properties. This prospective, randomized trial compared PGE1 vs prostacyclin vs. low-dose dobutamine in patients with low-output heart failure awaiting heart transplantation (HTx) who were refractory to oral treatment. METHODS: Patients in advanced heart failure in New York Heart ...
Relevancy Score: Relevancy Score: 515
Cnota James F - - 2003
PURPOSE: This study compared cardiac hemodynamics during supine cycle ergometry and dobutamine stress. METHODS: Thirty-two healthy volunteers (19 female, 13 male, 23.5 +/- 3.5 yr old) completed respective tests on separate days and in random order. Heart rate, blood pressure, and cardiac output were recorded at baseline and peak stress. ...
Relevancy Score: Relevancy Score: 515
Lafitte S - - 2001
BACKGROUND: Controversy continues as to whether adenosine or dobutamine is the superior pharmacological stress agent for myocardial contrast echocardiography (MCE). METHODS AND RESULTS: We compared real-time MCE refilling curves and wall thickening during adenosine and dobutamine stress in 14 open-chest dogs with left anterior descending and left circumflex coronary artery ...
Relevancy Score: Relevancy Score: 515
Applefeld M M - - 1987
Dobutamine (and dopamine) are potent positive inotropic drugs which are frequently given to treat decompensated congestive heart failure. This study reports on the use of ambulatory dobutamine (and dopamine) infusions in 21 outpatients with advanced congestive heart failure. Each patient was initially hospitalized, and hemodynamic and clinical efficacy to dobutamine ...
Relevancy Score: Relevancy Score: 515
Piérard L A - - 1999
OBJECTIVES: The aims of this study were (1) to assess the relation between ST-segment elevation and wall motion response occurring during dobutamine testing and (2) to evaluate the usefulness of stress-induced ST-segment elevation for predicting functional recovery after acute myocardial infarction. BACKGROUND: Clinical significance of stress-induced ST-segment elevation after acute ...
Relevancy Score: Relevancy Score: 515
Berg R A - - 1993
OBJECTIVE: To delineate dobutamine pharmacokinetics and hemodynamic responses in children. DESIGN: Prospective, pharmacokinetic study using sequential, graded dosing of drug. INTERVENTIONS: Graded intravenous dobutamine infusions of 0.5, 2.5, 5, 10, and 20 micrograms/kg/min were sequentially administered for 25 mins each. Plasma dobutamine concentrations and echocardiographically determined hemodynamic data were obtained ...
Relevancy Score: Relevancy Score: 515
Heino A - - 2000
OBJECTIVE: To evaluate the effects of dobutamine and fluid treatment on splanchnic hemodynamics and tissue oxygenation during partial superior mesenteric artery occlusion. DESIGN: Prospective, open randomized, full-factorial design. SETTING: University research laboratory. SUBJECTS: Forty-eight female pigs. INTERVENTIONS: In 24 anesthetized pigs (ischemic group), superior mesenteric artery (SMA) blood flow was ...
Relevancy Score: Relevancy Score: 515
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