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https://www.readbyqxmd.com/read/28516289/understanding-the-stability-of-dopamine-and-dobutamine-over-24%C3%A2-h-in-simulated-neonatal-ward-conditions
#1
Katherine Kirupakaran, Liam Mahoney, Heike Rabe, Bhavik A Patel
OBJECTIVES: Our objectives were to investigate the possible effects of temperature and light on the stability of dopamine and dobutamine continuous infusions over 24 h when prepared in a variety of dilution vehicles. METHODS: Syringe-driver infusion apparatuses were set up for dopamine and dobutamine diluted with either 0.9% sodium chloride (NaCl) or 5% glucose delivering 3 and 5 μg/kg/min, respectively, via 206-cm extension sets. All infusions were prepared for a neonate weight of 1 kg...
May 17, 2017: Paediatric Drugs
https://www.readbyqxmd.com/read/28514936/evaluation-of-an-indirect-oscillometric-blood-pressure-monitor-in-anaesthetised-dogs-at-three-different-anatomical-locations
#2
M Fujiyama, H Sano, J P Chambers, M Gieseg
AIMS: To evaluate the agreement between invasive and non-invasive measurements of blood pressure (BP) using an oscillometer (PetTrust) at three different anatomical locations in anaesthetised dogs under different haemodynamic conditions. METHODS: Eight adult Greyhounds weighing 23.5-36.5 kg were anaesthetised with isoflurane and positioned in dorsal recumbency. Systolic arterial pressure (SAP), diastolic arterial pressure (DAP) and mean arterial pressure (MAP) were measured invasively via a dorsal pedal artery and non-invasively using the oscillometer with cuffs placed above the carpus, above the tarsus and around the tail base...
July 2017: New Zealand Veterinary Journal
https://www.readbyqxmd.com/read/28514395/-impact-of-shock-wave-therapy-on-the-clinical-and-functional-status-of-patients-with-coronary-heart-disease
#3
S T Matskeplishvili, B M Borbodoeva, E U Asymbekova, A Z Rakhimov, N K Akhmedyarova, K B Kataeva, Yu I Buziashvili
AIM: To study of the impact of shock-wave therapy (SWT) on the functional status of patients with coronary heart disease (CHD). SUBJECTS AND METHODS: Thirty-four CHD patients (including 33 men) with left ventricular (LV) asynergic segments, as evidenced by echocardiography (EchoCG), were examined. Their mean age was 60.1±1.76 years. All the patients received a SWT cycle according to the standard scheme. The patient examination protocol involved EchoCG, dobutamine EchoCG, treadmill exercise EchoCG, and tissue Doppler EchoCG, which were performed at baseline, immediately and one month after the end of a SWT cycle...
2017: Terapevticheskiĭ Arkhiv
https://www.readbyqxmd.com/read/28511716/retraction-note-to-inotropic-therapy-for-cardiac-low-output-syndrome-comparison-of-hemodynamic-effects-of-dopamine-dobutamine-versus-dopamine-dopexamine
#4
EDITORIAL
N E El Mokhtari, A Arlt, A Meissner, M Lins
No abstract text is available yet for this article.
May 16, 2017: European Journal of Medical Research
https://www.readbyqxmd.com/read/28494911/levosimendan-does-not-provide-mortality-benefit-over-dobutamine-in-adult-patients-with-septic-shock-a-meta-analysis-of-randomized-controlled-trials
#5
Sulagna Bhattacharjee, Kapil D Soni, Souvik Maitra, Dalim K Baidya
OBJECTIVES: Despite of advancement in intensive care medicine, sepsis and septic shock carry a high mortality. Levosimendan, an inodilator, may be promising for septic shock patients with myocardial dysfunction; however, firm evidence is lacking. In this meta- analysis of randomized controlled trials, levosimendan has been compared with dobutamine in adult patients with sepsis and septic shock. DESIGN: Meta-analysis of randomized controlled trial. SETTING: Intensive-care unit...
June 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28483802/glucagon-like-peptide-1-receptor-activation-augments-cardiac-output-and-improves-cardiac-efficiency-in-obese-swine-following-myocardial-infarction
#6
Daniel J Sassoon, Johnathan D Tune, Kieren J Mather, Jillian N Noblet, Mackenzie A Eagleson, Abass M Conteh, Joshua T Sturek, Adam G Goodwill
This study tested the hypothesis that glucagon-like peptide-1 therapies improve cardiac contractile function at rest and in response to adrenergic stimulation in obese swine following myocardial infarction. Obese Ossabaw swine were subjected to gradually developing regional coronary occlusion using an ameroid occluder placed around the left anterior descending coronary artery. Animals received subcutaneous injections of saline or liraglutide (0.005-0.015 mg/kg/day) for 30 days following ameroid placement. Cardiac performance was then assessed at rest and in response to sympathomimetic challenge (dobutamine 0...
May 8, 2017: Diabetes
https://www.readbyqxmd.com/read/28475215/effect-of-inpatient-dobutamine-vs-milrinone-on-out-of-hospital-mortality-in-patients-with-acute-decompensated-heart-failure
#7
Jordan B King, Rashmee U Shah, Amy Sainski-Nguyen, Joseph Biskupiak, Mark A Munger, Adam P Bress
STUDY OBJECTIVE: To determine the effect of dobutamine versus milrinone on out-of-hospital mortality in treatment of patients with acute decompensated heart failure (ADHF). DESIGN: Propensity score weighted, retrospective cohort study with mortality as primary outcome. SETTING: An academic health-care system. PATIENTS: 500 adult patients with a prior history of heart failure, who survived a hospitalization for ADHF that included treatment with dobutamine or milrinone between January 1, 2006 and April 30, 2014...
May 5, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28465994/low-gradient-structural-valve-deterioration-in-a-patient-of-cardiac-sarcoidosis
#8
Shintaroh Koizumi, Kaoru Matsuura, Yoshio Kobayashi, Goro Matsumiya
We report a case of structural valve deterioration, which occurred 7 years after aortic valve replacement in a 78-year-old male with cardiac sarcoidosis. His echocardiography showed low transprosthetic valve gradient and depressed left ventricular function. A dobutamine stress echocardiography was performed to identify his pathophysiology, and it revealed that his depressed left ventricular function was not due to cardiac sarcoidosis but to structural valve deterioration. Reoperation for structural valve deterioration was performed, and his left ventricular function recovered...
April 2017: Journal of Cardiovascular Echography
https://www.readbyqxmd.com/read/28455289/diminished-responsiveness-to-dobutamine-as-an-inotrope-in-mice-with-cecal-ligation-and-puncture-induced-sepsis-attribution-to-phosphodiesterase-4-upregulation
#9
Mari Sakai, Tokiko Suzuki, Kengo Tomita, Shigeyuki Yamashita, Sailesh Palikhe, Kohshi Hattori, Naoki Yoshimura, Naoyuki Matsuda, Yuichi Hattori
Dobutamine has been used in septic shock for many years as an only inotrope, but its benefit has been questioned. We weighed the effects of dobutamine and milrinone as inotropes in BALB/c mice with cecal ligation and puncture (CLP)-induced sepsis. CLP-induced septic mice exhibited significant cardiac inflammation, as indicated by greatly increased mRNAs of pro-inflammatory cytokines and robust infiltration of inflammatory cells in ventricular myocardium. Elevations of plasma cardiac troponin-I showed cardiac injury in CLP mice...
April 28, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28444062/prognostic-value-of-coronary-flow-reserve-obtained-on-dobutamine-stress-echocardiography-and-its-correlation-with-target-heart-rate
#10
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
#11
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/28438216/improved-pressure-contour-analysis-for-estimating-cardiac-stroke-volume-using-pulse-wave-velocity-measurement
#12
Shun Kamoi, Christopher Pretty, Joel Balmer, Shaun Davidson, Antoine Pironet, Thomas Desaive, Geoffrey M Shaw, J Geoffrey Chase
BACKGROUND: Pressure contour analysis is commonly used to estimate cardiac performance for patients suffering from cardiovascular dysfunction in the intensive care unit. However, the existing techniques for continuous estimation of stroke volume (SV) from pressure measurement can be unreliable during hemodynamic instability, which is inevitable for patients requiring significant treatment. For this reason, pressure contour methods must be improved to capture changes in vascular properties and thus provide accurate conversion from pressure to flow...
April 24, 2017: Biomedical Engineering Online
https://www.readbyqxmd.com/read/28437032/autonomic-receptor-mediated-regulation-of-production-and-release-of-nitric-oxide-in-normal-and-malignant-human-urothelial-cells
#13
Michael Winder, Renata Vesela, Patrik Aronsson, Bhavik Patel, Thomas Carlsson
In the urinary bladder, the main source of NO seems to be the urothelium and the underlying suburothelium. In this study, we aimed to characterize how receptors in the human urothelium regulate the production and release of NO. For this, we cultured two human urothelial cell lines - the normal immortalized cell line UROtsa and the malignant cell line T24. These were treated with an array of agonists and antagonists with affinity for adrenergic, muscarinic and purinergic receptors. The production of NO and expression of nitric oxide synthase (NOS) was studied by immunocytochemistry and western blotting...
April 24, 2017: Basic & Clinical Pharmacology & Toxicology
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
#14
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/28410346/improved-survival-in-a-long-term-rat-model-of-sepsis-is-associated-with-reduced-mitochondrial-calcium-uptake-despite-increased-energetic-demand
#15
Bernardo B Pinto, Alex Dyson, Michele Umbrello, Jane E Carré, Cristiane Ritter, Innes Clatworthy, Michael R Duchen, Mervyn Singer
OBJECTIVES: To investigate the relationship between prognosis, changes in mitochondrial calcium uptake, and bioenergetic status in the heart during sepsis. DESIGN: In vivo and ex vivo controlled experimental studies. SETTING: University research laboratory. SUBJECTS: Male adult Wistar rats. INTERVENTIONS: Sepsis was induced by intraperitoneal injection of fecal slurry. Sham-operated animals served as controls...
April 13, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28408160/physical-training-promotes-similar-effects-to-the-blockade-of-angiotensin-converting-enzyme-on-the-cardiac-morphology-and-function-in-old-female-rats-subjected-to-premature-ovarian-failure
#16
Ana Carolina S Felix, Sabrina G V Dutra, Ada C Gastaldi, Pâmela C Bonfim, Suenimeire Vieira, Hugo Celso Dutra de Souza
We investigated the effects of angiotensin-converting enzyme (ACE) inhibition and aerobic physical training on the heart of old female rats (82-wk-old) submitted to premature ovarian failure (10-wk.-old). We used different approaches: morphology and function by echocardiography, reactivity of the coronary bed and left ventricular contractibility (Langendorff Technique). Female Wistar ovariectomized (OVX) rats (n=42) were assigned to one of four groups: OVX, vehicle treated only; OVX-EM, Enalapril Maleate only (EM, 10mg·kg(-1)·d(-1)); OVX-T, aerobic trained only; and OVX-EMT, treated with Enalapril Maleate and aerobic trained...
April 10, 2017: Experimental Gerontology
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
#17
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/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/28393781/comparison-of-levosimendan-versus-dobutamine-in-patients-with-moderate-to-severe-left-ventricular-dysfunction-undergoing-off-pump-coronary-artery-bypass-grafting-a-randomized-prospective-study
#20
Ashok Kandasamy, Hariharan Antony Simon, P Murthy, Mahalakshmi Annadurai, Mushkath Mohamed Ali, Gayathri Ramanathan
CONTEXT: Recent upsurge in referral of patients with compromised left ventricular (LV) function for cardiac surgery has led to an increasing use inotropes to achieve improvement of tissue perfusion in the perioperative period. AIMS AND OBJECTIVES: To compare the hemodynamic effects and immediate postoperative outcomes with levosimendan and dobutamine in patients with moderate to severe LV dysfunction undergoing off-pump coronary artery bypass grafting (OPCAB). SETTINGS AND DESIGN: University teaching hospital, randomized control study...
April 2017: Annals of Cardiac Anaesthesia
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