keyword
MENU ▼
Read by QxMD icon Read
search

Lactate and hypotension

keyword
https://www.readbyqxmd.com/read/28620821/administration-of-exogenous-melatonin-after-the-onset-of-systemic-inflammation-is-hardly-beneficial
#1
Lisa Brencher, Maren Oude Lansink, Katharina Effenberger-Neidnicht
Melatonin improves survival and functional impairment including hemolysis, thrombocytopenia, and hypotension when administered in a prophylactic manner or early after initiation of sepsis or endotoxemia. In the present study, melatonin was given not before first symptoms of systemic inflammation became manifest. Lipopolysaccharide was infused at a rate of 0.5 mg/kg × h to induce systemic inflammation in male Wistar rats. Melatonin (single dose 3 mg/kg × 15 min) was intravenously administered 180 and 270 min after starting of the lipopolysaccharide infusion...
June 15, 2017: Inflammation
https://www.readbyqxmd.com/read/28572638/mitochondrial-targeting-by-dichloroacetate-improves-outcome-following-hemorrhagic-shock
#2
Kumar Subramani, Sumin Lu, Marie Warren, Xiaogang Chu, Haroldo A Toque, R William Caldwell, Michael P Diamond, Raghavan Raju
Hemorrhagic shock is a leading cause of death in people under the age of 45 and accounts for almost half of trauma-related deaths. In order to develop a treatment strategy based on potentiating mitochondrial function, we investigated the effect of the orphan drug dichloroacetate (DCA) on survival in an animal model of hemorrhagic shock in the absence of fluid resuscitation. Hemorrhagic shock was induced in rats by withdrawing 60% of the blood volume and maintaining a hypotensive state. The studies demonstrated prolonged survival of rats subjected to hemorrhagic injury (HI) when treated with DCA...
June 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28569187/the-effects-of-acute-renal-denervation-on-kidney-perfusion-and-metabolism-in-experimental-septic-shock
#3
Emiel Hendrik Post, Fuhong Su, Koji Hosokawa, Fabio Silvio Taccone, Antoine Herpain, Jacques Creteur, Daniel De Backer, Jean-Louis Vincent
BACKGROUND: Perfusion deficits likely play an important role in the development of renal dysfunction in sepsis. Renal denervation may improve kidney perfusion and metabolism. METHODS: We randomized 14 female sheep to undergo bilateral surgical renal denervation (n = 7) or sham procedure (n = 7) prior to induction of sepsis. Renal blood flow (RBF) was measured with a pre-calibrated flowprobe. Laser Doppler probes were implanted to measure cortical and medullary perfusion...
May 31, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28542029/the-impact-of-the-sepsis-3-septic-shock-definition-on-previously-defined-septic-shock-patients
#4
Sarah A Sterling, Michael A Puskarich, Andrew F Glass, Faheem Guirgis, Alan E Jones
OBJECTIVE: The Third International Consensus Definitions Task Force (Sepsis-3) recently recommended changes to the definitions of sepsis. The impact of these changes remains unclear. Our objective was to determine the outcomes of patients meeting Sepsis-3 septic shock criteria versus patients meeting the "old" (1991) criteria of septic shock only. DESIGN: Secondary analysis of two clinical trials of early septic shock resuscitation. SETTING: Large academic emergency departments in the United States...
May 24, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28514322/relationship-between-a-sepsis-intervention-bundle-and-in-hospital-mortality-among-hospitalized-patients-a-retrospective-analysis-of-real-world-data
#5
Priya A Prasad, Erica R Shea, Stephen Shiboski, Mary C Sullivan, Ralph Gonzales, David Shimabukuro
BACKGROUND: Sepsis is a systemic response to infection that can lead to tissue damage, organ failure, and death. Efforts have been made to develop evidence-based intervention bundles to identify and manage sepsis early in the course of the disease to decrease sepsis-related morbidity and mortality. We evaluated the relationship between a minimally invasive sepsis intervention bundle and in-hospital mortality using robust methods for observational data. METHODS: We performed a retrospective cohort study at the University of California, San Francisco, Medical Center among adult patients discharged between January 1, 2012, and December 31, 2014, and who received a diagnosis of severe sepsis/septic shock (SS/SS)...
May 12, 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28501489/hydroxyethyl-starch-130-0-4-compared-with-0-9-nacl-administered-to-greyhounds-with-haemorrhagic-shock
#6
Duana McBride, Anthea L Raisis, Giselle Hosgood, Lisa Smart
OBJECTIVE: To determine the cardiovascular and acid-base effects of 6% hydroxyethyl starch (HES) 130/0.4 and 0.9% sodium chloride (NaCl) administered to anaesthetized greyhounds with haemorrhagic shock. STUDY DESIGN: Prospective, experimental, complete randomized block design. ANIMALS: Twelve healthy adult greyhounds. METHODS: After 60 minutes of isoflurane anaesthesia, 48 mL kg(-1) of blood was removed to induce hypotension...
March 6, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28489728/novel-adjunct-drugs-reverse-endothelial-glycocalyx-damage-after-hemorrhagic-shock-in-rats
#7
Ivo P Torres Filho, Luciana N Torres, Christi Salgado, Michael A Dubick
INTRODUCTION: There is interest in the small-volume therapeutic use of adjunct drugs for treating hemorrhagic shock (HS). However, critical information is only partially available on mechanisms of action of promising compounds such as adenosine-lidocaine-Magnesium (ALM), beta-hydroxybutyrate plus melatonin (BHB/M), and poloxamer 188 (P-188). Therefore, we tested the hypothesis that these adjuncts would reverse HS-induced damage to microvascular endothelial glycocalyx and hemodynamics...
May 9, 2017: Shock
https://www.readbyqxmd.com/read/28483456/protective-role-of-cgmp-in-early-sepsis
#8
Vanessa Kovalski, Ana P Prestes, Junior G Oliveira, Gustavo F Alves, Daiandra Fr Colarites, Jheniffer El Mattos, Regina Sordi, José Cr Vellosa, Daniel Fernandes
Septic shock, which is triggered by microbial products, is mainly characterised by inadequate tissue perfusion, which can lead to multiple organ dysfunction and death. An intense release of vasoconstrictors agents occurs in the early stages of shock, which can lead to ischemic injury. In this scenario, cGMP could play a key role in counterbalancing these agents and preventing tissue damage. Sildenafil, which is a phosphodiesterase-5 inhibitor, increases cGMP in smooth muscle cells and promotes vasodilation...
July 15, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28481669/prehospital-fluid-administration-in-trauma-patients-a-survey-of-state-protocols
#9
Sahil Dadoo, Joseph M Grover, Lukas G Keil, Kay S Hwang, Jane H Brice, Timothy F Platts-Mills
OBJECTIVE: The optimal resuscitation approach during the initial treatment of hypotensive trauma patients remains unknown, but some clinical trials have observed a survival benefit from restricting fluid administration prior to definitive hemorrhage control. We sought to characterize emergency medical services (EMS) protocols for the administration of intravenous fluids in this setting. METHODS: Publicly accessible statewide EMS protocols for the treatment of hypotensive trauma patients were included and characterized by: 1) goal of fluid administration, 2) dosing strategy, 3) maximum dose, 4) type of fluid, and 5) specific protocols for head trauma, if present...
May 8, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28471441/how-to-assess-hemodynamic-status-in-very-preterm-newborns-in-the-first-week-of-life
#10
G Escourrou, L Renesme, E Zana, A Rideau, M O Marcoux, E Lopez, G Gascoin, P Kuhn, P Tourneux, I Guellec, C Flamant
BACKGROUND: Assessing hemodynamic status in preterm newborns is an essential task, as many studies have shown increased morbidity when hemodynamic parameters are abnormal. Although oscillometric monitoring of arterial blood pressure (BP) is widely used due to its simplicity and lack of side effects, these values are not always correlated with microcirculation and oxygen delivery. OBJECTIVES: This review focuses on different tools for the assessment of hemodynamic status in preterm newborns...
May 4, 2017: Journal of Perinatology: Official Journal of the California Perinatal Association
https://www.readbyqxmd.com/read/28460808/emergency-department-septic-shock-patient-mortality-with-refractory-hypotension-vs-hyperlactatemia-a-retrospective-cohort-study
#11
Michael D April, Chase Donaldson, Lloyd I Tannenbaum, Tyler Moore, Jose Aguirre, Alexander Pingree, James H Lantry
BACKGROUND: Our objective was to compare in-hospital mortality among emergency department (ED) patients meeting trial-based criteria for septic shock based upon whether presenting with refractory hypotension (systolic blood pressure<90mmHg after 1L intravenous fluid bolus) versus hyperlactatemia (initial lactate≥4mmol/L). METHODS: We conducted a retrospective cohort analysis by chart review of ED patients admitted to an intensive care unit with suspected infection during 1 August 2012-28 February 2015...
April 27, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28446483/spontaneous-ruptured-iliac-artery-aneurysm-causing-acute-secondary-av-fistula
#12
Katherine-Helen Hurndall, Holly Carpenter, Jack Sandeman, Roland Fernandes
A 73-year-old woman presented with a 6-hour history of sudden onset lower abdominal pain. Her comorbidities included chronic obstructive pulmonary disease and hypertension. She was under surveillance for a known thoracoabdominal aneurysm. On presentation, she was hypotensive with a systolic blood pressure of 50 mm Hg and a pulse of 60 beats per minute. On examination, she had a pulsatile mass with bruit in her right lower abdomen. Pedal pulses were palpable in both feet. Blood gas analysis revealed a metabolic acidosis with a pH of 7...
April 26, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28438121/leg-elevation-decreases-the-incidence-of-post-spinal-hypotension-in-cesarean-section-a-randomized-controlled-trial
#13
Ahmed Hasanin, Ahmed Aiyad, Ahmed Elsakka, Atef Kamel, Reham Fouad, Mohamed Osman, Ali Mokhtar, Sherin Refaat, Yasmin Hassabelnaby
BACKGROUND: Maternal hypotension is a common complication after spinal anesthesia for cesarean section (CS). In this study we investigated the role of leg elevation (LE) as a method for prevention of post-spinal hypotension (PSH) for cesarean section. METHODS: One hundred and fifty full term parturients scheduled for CS were included in the study. Patients were randomized into two groups: Group LE (leg elevation group, n = 75) and group C (Control group, n = 75)...
April 24, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28403066/non-hemodynamic-effects-of-catecholamines
#14
Clair Hartmann, Peter Radermacher, Martin Wepler, Benedikt Nubaum
Circulatory shock is defined as an imbalance between tissue oxygen supply and demand, and mostly results from a loss of blood volume, cardiac pump failure and/or reduction of vasomotor tone. The clinical hallmarks of circulatory shock are arterial hypotension and lactate acidosis. Since the degree and duration of hypotension are major determinants of outcome, vasopressor administration represents a cornerstone therapy to treat these patients. Current guidelines recommend the use of catecholamines as the drug of first choice...
April 11, 2017: Shock
https://www.readbyqxmd.com/read/28358631/survival-analysis-of-hypotensive-cats-admitted-to-an-intensive-care-unit-with-or-without-hyperlactatemia-39-cases-2005-2011
#15
Emily K Shea, Stefan C Dombrowski, Deborah C Silverstein
OBJECTIVE To examine the association between blood lactate concentration and survival to hospital discharge in critically ill hypotensive cats. DESIGN Retrospective case series. ANIMALS 39 cats admitted to an intensive care unit of a university veterinary hospital between January 2005 and December 2011 for which blood lactate concentration was recorded ≤ 1 hour before or after a Doppler-derived arterial blood pressure measurement ≤ 90 mm Hg (ie, hypotension) was obtained. PROCEDURES Medical records of each cat were reviewed to assess survival to hospital discharge, illness severity, duration of hospitalization, age, body weight, and PCV...
April 15, 2017: Journal of the American Veterinary Medical Association
https://www.readbyqxmd.com/read/28343448/hemoadsorption-by-cytosorb-in-septic-patients-a-case-series
#16
Klaus Kogelmann, Dominik Jarczak, Morten Scheller, Matthias Drüner
BACKGROUND: Septic shock, defined as life-threatening organ dysfunction caused by a dysregulated host response to infection, is a highly lethal condition that causes substantial morbidity and mortality among critically ill patients. One of the hallmarks of sepsis is the excessive release of cytokines and other inflammatory mediators causing refractory hypotension, tissue damage, metabolic acidosis and ultimately multiple organ failure. In this context, cytokine reduction by hemoadsorption represents a new concept for blood purification, developed to attenuate the overwhelming systemic levels of pro-inflammatory and anti-inflammatory mediators released in the early phase of sepsis...
March 27, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28320242/early-goal-directed-therapy-for-septic-shock-a-patient-level-meta-analysis
#17
Kathryn M Rowan, Derek C Angus, Michael Bailey, Amber E Barnato, Rinaldo Bellomo, Ruth R Canter, Timothy J Coats, Anthony Delaney, Elizabeth Gimbel, Richard D Grieve, David A Harrison, Alisa M Higgins, Belinda Howe, David T Huang, John A Kellum, Paul R Mouncey, Edvin Music, Sandra L Peake, Francis Pike, Michael C Reade, M Zia Sadique, Mervyn Singer, Donald M Yealy
BACKGROUND: After a single-center trial and observational studies suggesting that early, goal-directed therapy (EGDT) reduced mortality from septic shock, three multicenter trials (ProCESS, ARISE, and ProMISe) showed no benefit. This meta-analysis of individual patient data from the three recent trials was designed prospectively to improve statistical power and explore heterogeneity of treatment effect of EGDT. METHODS: We harmonized entry criteria, intervention protocols, outcomes, resource-use measures, and data collection across the trials and specified all analyses before unblinding...
June 8, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28255987/a-randomised-double-blind-trial-of-phenylephrine-and-metaraminol-infusions-for-prevention-of-hypotension-during-spinal-and-combined-spinal-epidural-anaesthesia-for-elective-caesarean-section
#18
N J McDonnell, M J Paech, N A Muchatuta, S Hillyard, E A Nathan
Prophylactic vasopressor administration is commonly recommended to reduce maternal hypotension during spinal anaesthesia for caesarean section. Metaraminol has undergone limited investigation in obstetric anaesthesia for this purpose, particularly in comparison with phenylephrine. In this multicentre, randomised, double-blind, non-inferiority study, we compared prophylactic phenylephrine or metaraminol infusions, started immediately after spinal anaesthesia, in 185 women who underwent elective caesarean section...
May 2017: Anaesthesia
https://www.readbyqxmd.com/read/28251580/experimental-assessment-of-oxygen-homeostasis-during-acute-hemodilution-the-integrated-role-of-hemoglobin-concentration-and-blood-pressure
#19
Tiffanie Kei, Nikhil Mistry, Albert K Y Tsui, Elaine Liu, Stephen Rogers, Allan Doctor, David F Wilson, Jean-Francois Desjardins, Kim Connelly, C David Mazer, Gregory M T Hare
BACKGROUND: Low hemoglobin concentration (Hb) and low mean arterial blood pressure (MAP) impact outcomes in critically ill patients. We utilized an experimental model of "normotensive" vs. "hypotensive" acute hemodilutional anemia to test whether optimal tissue perfusion is dependent on both Hb and MAP during acute blood loss and fluid resuscitation, and to assess the value of direct measurements of the partial pressure of oxygen in tissue (PtO2). METHODS: Twenty-nine anesthetized rats underwent 40% isovolemic hemodilution (1:1) (or sham-hemodilution control, n = 4) with either hydroxyethyl starch (HES) (n = 14, normotensive anemia) or saline (n = 11, hypotensive anemia) to reach a target Hb value near 70 g/L...
December 2017: Intensive Care Medicine Experimental
https://www.readbyqxmd.com/read/28248722/mortality-is-greater-in-septic-patients-with-hyperlactatemia-than-with-refractory-hypotension
#20
Robert Gotmaker, Sandra L Peake, Andrew Forbes, Rinaldo Bellomo
BACKGROUND: In septic patients, it is uncertain whether isolated hyperlactatemia (lactate ≥ 4 mmol/L without refractory hypotension) can be used to diagnose septic shock and whether mortality rate differs from that of isolated refractory hypotension (refractory to 1000 ml or greater fluid bolus). AIMS: To compare baseline characteristics, treatments and outcomes of participants enrolled into the Australian Resuscitation in Sepsis Evaluation (ARISE) trial according to the presence of isolated hyperlactatemia or isolated refractory hypotension...
February 28, 2017: Shock
keyword
keyword
97662
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"