135 results found
Dombrowski SU, Prior ME, Duncan E, et al., 2013, Clinical components and associated behavioural aspects of a complex healthcare intervention: Multi-methods study of selective decontamination of the digestive tract in critical care., Australian critical care : official journal of the Confederation of Australian Critical Care Nurses
Mehta S, Granton J, Gordon AC, et al., 2013, Cardiac ischemia in patients with septic shock randomized to vasopressin or norepinephrine, Critical Care, Vol: 17, ISSN: 1364-8535
Introduction: Cardiac troponins are sensitive and specific biomarkers of myocardial necrosis. We evaluated troponin, CK, and ECG abnormalities in patients with septic shock; and compared the effect of vasopressin (VP) vs norepinephrine (NE) on troponin, CK, and ECGs.Methods: This was a prospective substudy of a randomized trial. Adults with septic shock randomly received a blinded infusion of low-dose VP (0.01-0.03 U/min) or NE (5-15 μg/min) in addition to open-label vasopressors, titrated to maintain a mean blood pressure of 65-75 mmHg. Troponin I/T, CK, and CKMB were measured and 12-lead ECGs were recorded prior to study drug, and 6 hours, 2 days and 4 days after study drug initiation. Two physician readers, blinded to patient data and drug, independently interpreted ECGs.Results: We enrolled 121 patients [median age 63.9 years (IQR 51.1,75.3), mean APACHE II 28.6 (SD 7.7)]: 65 in VP group and 56 in NE group. At the 4 timepoints, 26%, 36%, 32% and 21% of patients had troponin elevations, respectively. Baseline characteristics and outcomes were similar between patients with positive versus negative troponin levels. Troponin and CK levels, and rates of ischemic ECG changes were similar in the VP and NE groups. In multivariable analysis only APACHE II was associated with 28-day mortality (OR 1.07, 95% CI 1.01-1.14, p=0.033).Conclusions: Troponin elevation is common in adults with septic shock. We observed no significant differences in troponin, CK, and ECGs in patients treated with vasopressin and norepinephrine. Troponin elevation was not an independent predictor of mortality.Trial registration: Controlled-trials.com ISRCTN94845869.
Nieminen MS, Fruhwald S, Heunks LMA, et al., 2013, Levosimendan: current data, clinical use and future development., Heart Lung Vessel, Vol: 5, Pages: 227-245, ISSN: 2282-8419
Levosimendan is an inodilator indicated for the short-term treatment of acutely decompensated severe chronic heart failure, and in situations where conventional therapy is not considered adequate. The principal pharmacological effects of levosimendan are (a) increased cardiac contractility by calcium sensitisation of troponin C, (b) vasodilation, and (c) cardioprotection. These last two effects are related to the opening of sarcolemmal and mitochondrial potassium-ATP channels, respectively. Data from clinical trials indicate that levosimendan improves haemodynamics with no attendant significant increase in cardiac oxygen consumption and relieves symptoms of acute heart failure; these effects are not impaired or attenuated by the concomitant use of beta-blockers. Levosimendan also has favourable effects on neurohormone levels in heart failure patients. Levosimendan is generally well tolerated in acute heart failure patients: the most common adverse events encountered in this setting are hypotension, headache, atrial fibrillation, hypokalaemia and tachycardia. Levosimendan has also been studied in other therapeutic applications, particularly cardiac surgery - in which it has shown a range of beneficial haemodynamic and cardioprotective effects, and a favourable influence on clinical outcomes - and has been evaluated in repetitive dosing protocols in patients with advanced chronic heart failure. Levosimendan has shown preliminary positive effects in a range of conditions requiring inotropic support, including right ventricular failure, cardiogenic shock, septic shock, and Takotsubo cardiomyopathy.
Shankar-Hari M, Singer M, Cornelius V, et al., 2012, LOW IMMUNOGLOBULIN I; LEVELS AT ADMISSION REDUCES THE ODDS FOR 28 DAY MORTALITY COMPARED TO NORMAL LEVELS: PROSPECTIVE COHORT STUDY IN SEVERE SEPSIS, INTENSIVE CARE MEDICINE, Vol: 38, Pages: S54-S54, ISSN: 0342-4642
Gordon AC, Wang N, Walley KR, et al., 2012, The cardio-pulmonary effects of vasopressin compared to norepinephrine in septic shock., Chest, Vol: 142, Pages: 593-605
Abstract BACKGROUND:Vasopressin is known to be an effective vasopressor in the treatment of septic shock but uncertainty remains about its effect on other hemodynamic parameters. METHODS:We examined the cardio-pulmonary effects of vasopressin compared to norepinephrine in 779 adult patients who had septic shock recruited to the Vasopressin and Septic Shock Trial (VASST). More detailed cardiac output data was analyzed for the subset of 241 patients managed with a pulmonary artery catheter and data was collected for the first 96 hours after randomization. We compared the effects of vasopressin versus norepinephrine in all patients and also according to severity of shock (< or ≥ 15μg/min of norepinephrine) and cardiac output at baseline. RESULTS:Equal blood pressures were maintained in both treatment groups with a significant reduction in norepinephrine requirements in the vasopressin treated patients. The major haemodynamic difference between the two groups was a significant reduction in heart rate in the vasopressin treated patients (p < 0.0001) and this was most pronounced in the less severe shock stratum (treatment x shock stratum interaction, p = 0.03). There were no other major cardio-pulmonary differences between treatment groups, including no difference in cardiac index or stroke volume index between vasopressin and norepinephrine treated patients. There was significantly greater use of inotropic drugs in the vasopressin group compared to the norepinephrine group. CONCLUSIONS:Vasopressin treatment in septic shock is associated with a significant reduction in heart rate but no change in cardiac output or other measures of perfusion. (Controlled Trials number, ISRCTN94845869.).
O'Callaghan DJP, Jayia P, Vaughan-Huxley E, et al., 2012, An observational study to determine the effect of delayed admission to the intensive care unit on patient outcome, CRITICAL CARE, Vol: 16, ISSN: 1466-609X
Annane D, Mira JP, Ware LB, et al., 2012, Design, conduct, and analysis of a multicenter, pharmacogenomic, biomarker study in matched patients with severe sepsis treated with or without drotrecogin Alfa (activated), Annals of intensive care, Vol: 2, Pages: 15-15
ABSTRACT: BACKGROUND: A genomic biomarker identifying patients likely to benefit from drotrecogin alfa (activated) (DAA) may be clinically useful as a companion diagnostic. This trial was designed to validate biomarkers (improved response polymorphisms (IRPs)). Each IRP (A and B) contains two single nucleotide polymorphisms that were associated with a differential DAA treatment effect. METHODS: DAA is typically given to younger patients with greater disease severity; therefore, a well-matched control group is critical to this multicenter, retrospective, controlled, outcome-blinded, genotype-blinded trial. Within each center, DAA-treated patients will be matched to controls treated within 24 months of each other taking into account age, APACHE II, cardiovascular, respiratory, renal, and hematologic dysfunction, mechanical ventilation status, medical/surgical status, and infection site. A propensity score will estimate the probability that a patient would have received DAA given their baseline characteristics. Two-phase data transfer will ensure unbiased selection of matched controls. The first transfer will be for eligibility and matching data and the second transfer for outcomes and genotypic data. The primary analysis will compare the effect of DAA in IRP + and IRP - groups on in-hospital mortality through day 28. DISCUSSION: A design-based approach matching DAA-free to DAA-treated patients in a multicenter study of patients who have severe sepsis and high risk of death will directly compare control to DAA-treated groups for mortality by genotype. Results, which should be available in 2012, may help to identify the group of patients who would benefit from DAA and may provide a model for future investigation of sepsis therapies.
O'Callaghan DJP, Gordon AC, 2011, Sepsis: an update for physicians, Clinical Medicine, Vol: 11, Pages: 619-622
Mehta S, Granton J, Lapinsky SE, et al., 2011, Agreement in electrocardiogram interpretation in patients with septic shock, CRITICAL CARE MEDICINE, Vol: 39, Pages: 2080-2086, ISSN: 0090-3493
Tridente A, Clarke GM, Walden A, et al., 2011, EPIDEMIOLOGY OF FAECAL PERITONITIS IN THE GENOSEPT COHORT, Publisher: SPRINGER, Pages: S199-S199, ISSN: 0342-4642
O'Callaghan DJ, O'Dea KP, Gordon AC, et al., 2011, MONOCYTE TACE ACTIVITY PROFILES ARE ALTERED BY INFLAMMATORY STIMULI, INTENSIVE CARE MEDICINE, Vol: 37, Pages: S258-S258, ISSN: 0342-4642
O'Callaghan DJ, O'Dea KP, Gordon AC, et al., 2011, MONOCYTE TACE ACTIVITY MAY RESPOND TO ENVIRONMENTAL STIMULI, INTENSIVE CARE MEDICINE, Vol: 37, Pages: S258-S258, ISSN: 0342-4642
Gordon AC, Hartle AJ, 2011, Donation after circulatory death – a new role for the anaesthetist?, Anaesthesia, Vol: 66, Pages: 757-768
Gordon AC, 2011, Vasopressor therapy, Encyclopedia of Intensive Care Medicine, Editors: Vincent, Hall, Publisher: Springer Verlag, ISBN: 9783642004179
Gordon AC, 2011, Vasopressin in septic shock, Journal of the Intensive Care Society, Vol: 12, Pages: 11-14, ISSN: 1751-1437
In recent years there has been growing interest in the use of vasopressin as an adjunctive vasopressor in septic shock. This review article aims to summarise the rationale for its use, review the evidence of its effects in clinical studies and consider future areas of research.©The Intensive Care Society 2011.
Gordon AC, 2011, Vasopressin in septic shock, Jounal of the Intensive Care Society, Vol: 1, Pages: 11-14
Gordon AC, Russell JA, Walley KR, et al., 2010, The effects of vasopressin on acute kidney injury in septic shock, INTENSIVE CARE MEDICINE, Vol: 36, Pages: 83-91, ISSN: 0342-4642
Russell JA, Gordon AC, Walley KR, 2010, Corticosteroids and the original vasopressin and septic shock trial subgroups Reply, CRITICAL CARE MEDICINE, Vol: 38, Pages: 338-339, ISSN: 0090-3493
Gordon AC, Russell JA, 2010, Should vasopressin be used in septic shock?, Evidence-based practice of critical care, Editors: Deutschman, Neligan, Publisher: W B Saunders Co, ISBN: 9781416054764
An outstanding source for "best practices" in critical care medicine, thisbook is a valuable framework for translating evidence into practice.
Gordon AC, Mehta S, Lapinsky S, et al., 2009, COMPARISON OF VASOPRESSIN- VERSUS NOREPINEPHRINE-ASSOCIATED ISCHEMIC ECG CHANGES IN SEPTIC SHOCK, 22nd Annual Congress of the European-Society-of-Intensive-Care-Medicine, Publisher: SPRINGER, Pages: 114-114, ISSN: 0342-4642
Russell JA, Walley KR, Gordon AC, et al., 2009, Interaction of vasopressin infusion, corticosteroid treatment, and mortality of septic shock., Critical Care Medicine, Vol: 37, Pages: 811-818
Vasopressin and corticosteroids are often added to support cardiovascular dysfunction in patients who have septic shock that is nonresponsive to fluid resuscitation and norepinephrine infusion. However, it is unknown whether vasopressin treatment interacts with corticosteroid treatment.
van Saene HKF, Petros AJ, Sarginson RE, et al., 2009, Is selective decontamination of the digestive tract a solution to the antimicrobial resistance problem in the UK, Journal of the Intensive Care Society, Vol: 2, Pages: 86-87
Wurfel MM, Gordon AC, Holden TD, et al., 2008, Toll-like receptor 1 polymorphisms affect innate immune responses and outcomes in sepsis, AMERICAN JOURNAL OF RESPIRATORY AND CRITICAL CARE MEDICINE, Vol: 178, Pages: 710-720, ISSN: 1073-449X
Eisen DP, Dean MM, Boermeester MA, et al., 2008, Low serum mannose-binding lectin level increases the risk of death due to pneumococcal infection, CLINICAL INFECTIOUS DISEASES, Vol: 47, Pages: 510-516, ISSN: 1058-4838
Gordon A, Knight JC, Hinds CJ, 2008, Genes and sepsis: How tight is the fit?, CRITICAL CARE MEDICINE, Vol: 36, Pages: 1652-1654, ISSN: 0090-3493
Russell JA, Walley KR, Singer J, et al., 2008, Vasopressin versus norepinephrine infusion in patients with septic shock, NEW ENGLAND JOURNAL OF MEDICINE, Vol: 358, Pages: 877-887, ISSN: 0028-4793
Gordon AC, LeBlanc ME, Walley KR, et al., 2007, Protein C and PAI-1 genetic markers of mortality reduction in response to rhAPC in the VASST study, 37th Critical Care Congress of the Society-of-Critical-Care-Medicine, Publisher: LIPPINCOTT WILLIAMS & WILKINS, Pages: A18-A18, ISSN: 0090-3493
Gordon AC, Walley KR, Russell JA, et al., 2006, Hyperfunctioning polymorphism in the toll-like receptor 1 gene is associated with increased mortality in sepsis., CRITICAL CARE MEDICINE, Vol: 34, Pages: A18-A18, ISSN: 0090-3493
Sutherland AM, Gordon AC, Russell JA, 2006, Are Vasopressin Levels Increased or Decreased in Septic Shock?, Critical Care Medicine, Vol: 34, Pages: 542-543
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