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Vasopressors

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https://www.readbyqxmd.com/read/28807037/selepressin-a-novel-selective-vasopressin-v1a-agonist-is-an-effective-substitute-for-norepinephrine-in-a-phase-iia-randomized-placebo-controlled-trial-in-septic-shock-patients
#1
James A Russell, Jean-Louis Vincent, Anne Louise Kjølbye, Håkan Olsson, Allan Blemings, Herbert Spapen, Peder Carl, Pierre-Francois Laterre, Lars Grundemar
BACKGROUND: Vasopressin is widely used for vasopressor support in septic shock patients, but experimental evidence suggests that selective V1A agonists are superior. The initial pharmacodynamic effects, pharmacokinetics, and safety of selepressin, a novel V1A-selective vasopressin analogue, was examined in a phase IIa trial in septic shock patients. METHODS: This was a randomized, double-blind, placebo-controlled multicenter trial in 53 patients in early septic shock (aged ≥18 years, fluid resuscitation, requiring vasopressor support) who received selepressin 1...
August 15, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28806218/hypoxemic-patients-with-bilateral-infiltrates-treated-with-high-flow-nasal-cannula-present-a-similar-pattern-of-biomarkers-of-inflammation-and-injury-to-acute-respiratory-distress-syndrome-patients
#2
Marina García-de-Acilu, Judith Marin-Corral, Antonia Vázquez, Laura Ruano, Mònica Magret, Ricard Ferrer, Joan R Masclans, Oriol Roca
OBJECTIVE: To examine whether patients with acute hypoxemia and bilateral opacities treated with high-flow nasal cannula and acute respiratory distress syndrome patients who were directly mechanically ventilated are similar in terms of lung epithelial, endothelial, and inflammatory biomarkers. DESIGN: Prospective, multicenter study. SETTING: ICUs at three university tertiary hospitals. PATIENTS: Intubated and nonintubated patients admitted to the ICU with acute hypoxemia (PaO2/FIO2 ≤ 300) and bilateral opacities...
August 10, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28805975/antofine-suppresses-endotoxin-induced-inflammation-and-metabolic-disorder-via-amp-activated-protein-kinase
#3
Shao-Ting Chou, Fang Jung, Shih-Hsing Yang, Hwei-Ling Chou, Guey-Mei Jow, Jau-Chen Lin
The inhibition of activated macrophages has been used to develop anti-inflammatory agents for therapeutic intervention to human diseases that cause excessive inflammatory responses. Antofine, a phenanthroindolizidine alkaloid, has a potent anti-inflammatory effect. However, the molecular mechanisms of its anti-inflammatory activity have not yet been fully detailed. In this study, we comprehensively explored the anti-inflammatory effects of antofine on endotoxin-induced inflammation in macrophages using cDNA microarray analysis, thereby elucidating the potential mechanism by which antofine suppresses inflammation...
August 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28804906/efficacy-of-a-mephentermine-based-product-as-a-vasopressor-and-a-cardiac-performance-enhancer-when-given-intramuscularly-to-cattle
#4
D N Q Cunha, C L Del Rio, B L Youngblood, E L Ferris, G E Geist, Y Ueyama, L C Franz, S Mathur, R L Hamlin
The goal of this study was to confirm the vasopressor and cardiac effects of POTENAY(®) INJETÁVEL (POT), a mephentermine-based product, given to cattle with induced vascular/cardiac depression. Ten healthy Holstein cattle (206 ± 13 kg) followed a randomized-complete-block design (RCBD) utilizing crossover study design. Each animal randomly received (1 ml/25 kg, IM) of either POT (n = 10) or volume-matched placebo control (0.9%NaCl, CP, n = 10). A subset of animals (n = 5) received POT first (day 0) while the remaining (n = 5) received CP; after a six-day washout period, cattle received the opposite compound...
August 14, 2017: Journal of Veterinary Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28804862/oncological-patients-in-the-intensive-care-unit-prognosis-decision-making-therapies-and-end-of-life-care
#5
Ewelina Biskup, Fengfeng Cai, Marcus Vetter, Stephan Marsch
The effectiveness of intensive care unit (ICU) care for cancer patients remains controversial. Advances in antitumour and supportive care led to major improvements in outcomes of oncological patients in the ICU. Improved cancer therapies and supportive management of organ dysfunctions have contributed to improved survival rates. As a consequence, the number of cancer patients requiring ICU admission is rising. Frequently, cancer patients have a poor performance status and are vulnerable. It is a heterogeneous population, where the nature and curability of the neoplasm and the severity of critical illness cause a plethora of issues about ICU admissions...
August 14, 2017: Swiss Medical Weekly
https://www.readbyqxmd.com/read/28804498/feasibility-of-cervical-epidural-anesthesia-for-breast-cancer-surgery
#6
Manuel Wenk, Christina Massoth, Daniel M Pöpping, Michael Möllmann
BACKGROUND: Effects of perioperative cervical level neuraxial blocks on the dissemination of cancer metastases have become a matter of substantial interest. However, experience with these catheters has been limited and data on feasibility and efficacy is sparse. METHODS: Data from 39 patients scheduled to undergo breast cancer surgery while awake with a cervical epidural alone was retrospectively analyzed. RESULTS: In 26 patients (66,7%, 95% CI 51,7-81,7) the cervical epidural catheter was sufficient for surgery...
2017: Anesthesiology Research and Practice
https://www.readbyqxmd.com/read/28803996/perioperative-hemodynamics-and-outcomes-of-patients-on-metyrosine-undergoing-resection-of-pheochromocytoma-or-paraganglioma
#7
James J Butz, Toby N Weingarten, Alexandre N Cavalcante, Irina Bancos, William F Young, Travis J McKenzie, Darrell R Schroeder, David P Martin, Juraj Sprung
INTRODUCTION: To describe outcomes of patients with metyrosine (MET) pretreatment for abdominal surgical resection of pheochromocytoma or paraganglioma (PCC/PGL) compared with patients who had phenoxybenzamine (PBZ) pretreatment. METHODS: Retrospective review of perioperative outcomes for PCC/PGL patients treated with MET and propensity-matched comparison of MET and PBZ (MET + PBZ) with PBZ alone. RESULTS: MET preparation was given in 63 cases (26 laparoscopic and 37 open, of which 55 also received PBZ)...
August 10, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28802997/prophylactic-use-of-an-intra-aortic-balloon-pump-in-a-high-risk-patient-with-peripartum-cardiomyopathy-requiring-cesarean-delivery
#8
R S Samalavicius, L Puodziukaite, I Radaviciute, I Norkiene, K Urbonas, I Misiuriene, V Janusauskas, A Zorinas, K Rucinskas, P Serpytis
The use of intra-aortic balloon counter-pulsation for circulatory support in pregnant women with cardiac failure is limited to several case reports. Few publications have addressed the use of intra-aortic balloon counter-pulsation during delivery. We report a case using prophylactic intra-aortic counter-pulsation during the management of a cesarean delivery in a patient with peripartum cardiomyopathy. A 28-year-old primigravid female at 37weeks of gestation was admitted with signs of worsening heart failure, and transthoracic echocardiography revealed a decreased left ventricular ejection fraction of 25%...
July 14, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28800865/contemporary-reviews-in-critical-care-medicine-anaphylaxis
#9
REVIEW
Daniel LoVerde, Onyinye I Iweala, Ariana Eginli, Guha Krishnaswamy
Anaphylaxis is a systemic, life threatening disorder triggered by mediators released by mast cells and basophils activated via allergic (IgE-mediated) or non-allergic (non-IgE-mediated) mechanisms. It is a rapidly evolving, multisystem process involving the integumentary, pulmonary, gastrointestinal and cardiovascular systems. Anaphylaxis and angioedema are serious disorders that can lead to fatal airway obstruction and culminate in cardiorespiratory arrest resulting in hypoxemia and/or shock. Often, these disorders can be appropriately managed in an outpatient setting...
August 8, 2017: Chest
https://www.readbyqxmd.com/read/28800765/therapeutic-effects-of-flurbiprofen-axetil-on-mesenteric-traction-syndrome-randomized-clinical-trial
#10
Hidemasa Takahashi, Dai Shida, Kyoko Tagawa, Ryo Iwamoto, Makoto Arita, Hiroyuki Arai, Takeo Suzuki
BACKGROUND: This study aimed to reveal the appropriate timing for the intravenous administration of flurbiprofen axetil for preventing mesenteric traction syndrome (MTS), caused by prostacyclin release. METHODS: In this prospective, randomized, clinical study, forty-five patients who were undergoing elective surgery for colorectal cancer via laparotomy were enrolled. Patients were randomly divided into 3 groups: a preoperative group (n = 16) receiving flurbiprofen axetil directly before surgery; a post-MTS group (n = 14) receiving following MTS onset; and a control group (n = 15) who were not administered flurbiprofen axetil...
August 11, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28799416/evaluating-the-effects-of-chronic-antihypertensives-on-vasopressor-dosing-in-septic-shock
#11
Joshua M DeMott, Gourang Patel, Ishaq Lat
BACKGROUND: In septic shock, chronic antihypertensive medications are held acutely. Vasopressors are often required to maintain blood pressure. The effect of chronic exposure to antihypertensive therapies on vasopressor dosing in septic shock is not known. OBJECTIVE: To determine the effects of chronic exposure to antihypertensive therapies, specifically β-blockers and angiotensin-converting enzyme (ACE) inhibitors, on cumulative vasopressor dosing in septic shock...
August 1, 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28799206/the-incidence-and-characteristics-of-3-month-mortality-after-intraoperative-cardiac-arrest-in-adults
#12
M Hur, H-C Lee, K H Lee, J-T Kim, C-W Jung, H-P Park
BACKGROUND: There is little information about clinical outcomes after intraoperative cardiac arrest (IOCA). We determined the incidence and characteristics of 3-month mortality after IOCA. METHODS: The electronic medical records of 238,648 adult surgical patients from January 2005 to December 2014 were reviewed retrospectively. Characteristics of IOCA were documented using the Utstein reporting template. RESULTS: IOCA occurred in 50 patients (21/100,000 surgeries)...
August 11, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28794524/an-analysis-of-the-predictors-of-mortality-and-morbidity-in-patients-admitted-after-suicidal-hanging-to-an-indian-multidisciplinary-intensive-care-unit
#13
M K Renuka, M S Kalaiselvan, A S Arunkumar
BACKGROUND AND AIMS: Hanging is a frequently used method to attempt suicide in India. There is a lack of data in the Indian population regarding clinical features and outcomes of suicidal hanging. The purpose of this study was to evaluate the factors affecting mortality and morbidity in patients admitted with suicidal hanging to the Intensive Care Unit (ICU). METHODS: A 6-year retrospective study of adult patients admitted to the ICU with suicidal hanging was analysed for demographics, mode of hanging, lead time to emergency room (ER) admission, clinical presentation, Acute Physiology and Chronic Health Evaluation II (APACHE II) and Sequential Organ Failure Assessment (SOFA) scores, admission Glasgow coma scale (GCS) and neurological outcomes...
July 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28777195/prevalence-and-prognostic-association-of-circulating-troponin-in-the-acute-respiratory-distress-syndrome
#14
Thomas S Metkus, Eliseo Guallar, Lori Sokoll, David Morrow, Gordon Tomaselli, Roy Brower, Steven Schulman, Frederick K Korley
OBJECTIVE: Circulating cardiac troponin has been associated with adverse prognosis in the acute respiratory distress syndrome in small and single-center studies; however, comprehensive studies of myocardial injury in acute respiratory distress syndrome using modern high-sensitivity troponin assays, which can detect troponin at much lower circulating concentrations, have not been performed. DESIGN: We performed a prospective cohort study. SETTING: We included patients enrolled in previously completed trials of acute respiratory distress syndrome...
August 2, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28771848/5-ht-modulates-the-rat-mesenteric-vasopressor-outflow-by-5-ht1d-sympatholytic-receptors
#15
José-Ángel García-Pedraza, Mónica García-Domingo, Miriam Gómez-Roso, Alicia Rodríguez-Barbero, María-Luisa Martín, Asunción Morán
5-hydroxytryptamine (5-HT) modulates noradrenergic activity in different cardiovascular territories, but its effect on the mesenteric vasopressor outflow has not yet been clarified. This study investigated the in vivo serotonergic influence, characterizing 5-HT receptors implicated, in sympathetic innervation of mesenteric vasculature. Wistar rats were anaesthetised and prepared for the in situ autoperfused rat mesentery, monitoring systemic blood pressure (SBP), heart rate (HR) and mesenteric perfusion pressure (MPP)...
August 3, 2017: Clinical and Experimental Pharmacology & Physiology
https://www.readbyqxmd.com/read/28768527/bilateral-blindness-secondary-to-optic-nerve-ischemia-from-severe-amlodipine-overdose-a-case-report
#16
Raymond Kao, Yves Landry, Genevieve Chick, Andrew Leung
BACKGROUND: Calcium channel blockers are commonly prescribed medications; calcium channel blocker overdose is becoming increasingly prevalent. The typical presentation of a calcium channel blocker overdose is hypotension and decreased level of consciousness. We describe a case of a calcium channel blocker overdose that led to bilateral cortical blindness, a presentation that has not previously been reported. CASE PRESENTATION: A 49-year-old white woman with known bilateral early optic atrophy presented to our hospital with hypotension and obtundation following a known ingestion of 150 mg of amlodipine...
August 3, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28765633/performance-measurement-of-intraoperative-systolic-arterial-pressure-to-predict-in-hospital-mortality-in-adult-liver-transplantation
#17
Hyung-Chul Lee, Ho-Geol Ryu, Chul-Woo Jung
Profound hypotension during liver transplantation is aggressively treated with vasopressors thus frequently unrevealed in a retrospective study. The relationship between concealed intraoperative hypotension and in-hospital mortality after liver transplantation was evaluated using performance measurement (PM) of systolic arterial pressure (SAP). Median performance error (MDPE), median absolute performance error (MDAPE), and wobble of SAP were calculated using preoperative SAP as the reference value, and prereperfusion and postreperfusion SAPs as measured values...
August 1, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28764215/comparative-evaluation-of-accuracy-of-pulse-oximeters-and-factors-affecting-their-performance-in-a-tertiary-intensive-care-unit
#18
Anupam Kumar Singh, Malvinder Singh Sahi, Bablesh Mahawar, Sajjan Rajpurohit
INTRODUCTION: Pulse oximetry is a widely used tool, unfortunately there is a paucity of data investigating its accuracy in Intensive Care Units (ICU) and if they are able to meet mandated FDA criteria as claimed by them in critically ill patients. AIM: To assess bias, precision and accuracy of pulse oximeters used in ICU and factors affecting them. MATERIALS AND METHODS: A prospective cohort study, including 129 patients admitted to the ICU of a tertiary referral centre...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28761020/changes-in-neutrophil-to-lymphocyte-ratios-in-postcardiac-arrest-patients-treated-with-targeted-temperature-management
#19
Kazım Başer, Hatice Duygu Baş, Pavan Attaluri, Terrance Rodrigues, Jacob Nichols, Kennetht Nugen
OBJECTIVE: The prognostic value of changes in neutrophil-to-lymphocyte ratios (NLR) in cardiac arrest survivors receiving targeted temperature management (TTM) is unknown. The current study investigated NLR in postcardiac arrest (PCA) patients undergoing TTM. METHODS: This retrospective single-center study included 95 patients (59 males, age: 55.0±17.0 years) with in-hospital and out-of-hospital cardiac arrests who underwent TTM for PCA syndrome within 6 h of cardiac arrest...
July 25, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28760474/impact-of-postoperative-liver-dysfunction-on-survival-after-left-ventricular-assist-device-implantation
#20
Kaustav Majumder, John R Spratt, Christopher T Holley, Samit S Roy, Rebecca J Cogswell, Kenneth Liao, Ranjit John
BACKGROUND: Liver dysfunction in left ventricular assist device (LVAD) recipients is common both before and after implantation. Postoperative liver dysfunction (PLD) develops in some LVAD recipients without preoperative liver dysfunction. The aim of this study was to assess clinical outcomes in such patients. METHODS: Records of all patients undergoing implantation of a HeartMate II (HM II, St. Jude Medical, Inc, Minneapolis, MN) LVAD at a single center at the University of Minnesota from January 2005 through June 2014 were analyzed...
July 28, 2017: Annals of Thoracic Surgery
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