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Hypotension

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https://www.readbyqxmd.com/read/28437860/chronic-inhibition-of-fatty-acid-amide-hydrolase-by-urb597-produces-differential-effects-on-cardiac-performance-in-normotensive-and-hypertensive-rats
#1
Anna Pedzinska-Betiuk, Jolanta Weresa, Marek Toczek, Marta Baranowska-Kuczko, Irena Kasacka, Ewa Harasim-Symbor, Barbara Malinowska
BACKGROUND AND PURPOSE: Fatty acid amide hydrolase (FAAH) inhibitors are postulated to possess anti-hypertensive potential, because their acute injection decreases blood pressure (BP) in spontaneously hypertensive rats (SHR) partially through normalization of cardiac contractile function. Here, we examined whether the potential hypotensive effect of chronic FAAH inhibition by URB597 in hypertensive rats correlates with changes in cardiac performance. EXPERIMENTAL APPROACH: Experiments were performed using perfused hearts and left atria isolated from 8-10 week old SHR, age-matched deoxycorticosterone acetate (DOCA-salt) rats and normotensive controls chronically treated with URB597 (1 mg kg(-1) ) or vehicle...
April 24, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28435902/emergency-medical-service-personnel-need-to-improve-knowledge-and-attitude-regarding-prehospital-sepsis-care
#2
Joongmin Park, Sung Yeon Hwang, Tae Gun Shin, Ik Joon Jo, Hee Yoon, Tae Rim Lee, Won Chul Cha, Min Seob Sim
OBJECTIVE: We aimed to evaluate the knowledge and attitudes of emergency medical service (EMS) personnel pertaining to sepsis. We also compared EMS personnel's knowledge of sepsis and their intention to engage in prehospital sepsis management. METHODS: The survey was conducted during education conferences for EMS personnel in December 2013 and January 2015 in Seoul, Korea. The questionnaire composed of 10 questions relevant to sepsis, was distributed on-scene, and was retrieved by investigators after the conference...
March 2017: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/28435896/association-between-persistent-tachycardia-and-tachypnea-and-in-hospital-mortality-among-non-hypotensive-emergency-department-patients-admitted-to-the-hospital
#3
Michael A Puskarich, Utsav Nandi, Ben G Long, Alan E Jones
OBJECTIVE: Vital sign trends are used in clinical practice to assess treatment response and aid in disposition, yet quantitative data to support this practice are lacking. This study aimed to determine the prognostic value of vital sign normalization. METHODS: Secondary analysis of a prospective cohort of adult emergency department (ED) patients admitted a single urban tertiary care hospital. A random sample of 182 days was chosen, and a manual review of all admissions was undertaken...
March 2017: Clinical and Experimental Emergency Medicine
https://www.readbyqxmd.com/read/28435222/effects-of-intrathecal-dexmedetomidine-on-shivering-after-spinal-anesthesia-for-cesarean-section-a-double-blind-randomized-clinical-trial
#4
Karim Nasseri, Negin Ghadami, Bijan Nouri
BACKGROUND: Shivering is among the common troublesome complications of spinal anesthesia (SA), and causes discomfort and discontentment in parturients undergoing cesarean sections (CSs). The aim of this study was to investigate the effects of intrathecal dexmedetomidine in the prevention of shivering in those who underwent CS under SA. SUBJECTS AND METHODS: Fifty parturients planned for elective CSs under SA were enrolled in this prospective, double-blinded, controlled study and randomly divided into two equal groups...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28433974/hypoactive-hypoalert-behaviour-and-thalamic-hypometabolism-due-to-intracranial-hypotension
#5
Seamus Kearney, Peter Flynn, Simon Hughes, Wendy Spence, Mark Owen McCarron
A 47-year-old man presented with a 9-year history of a hypoalert hypoactive behaviour syndrome, caused by the deep brain swelling variant of spontaneous intracranial hypotension. Along with apathy with retained cognition, he had stable ataxia, impaired upgaze and episodes of central apnoea. MRI brain showed a sagging brainstem, pointed ventricles and reduced angle between the vein of Galen and the straight sinus, but no meningeal enhancement or subdural collections. A dopamine transporter scan showed preganglionic dopamine receptor deficiency; a fluorodeoxy glucose positron emission tomography scan showed bilateral hypothalamic hypometabolism...
April 22, 2017: Practical Neurology
https://www.readbyqxmd.com/read/28432261/ccm2-and-pak4-act-downstream-of-atrial-natriuretic-peptide-signaling-to-promote-cell-spreading
#6
Koichi Miura, Takashi Nojiri, Yoshiharu Akitake, Koji Ando, Shigetomo Fukuhara, Masahiro Zenitani, Toru Kimura, Jun Hino, Mikiya Miyazato, Hiroshi Hosoda, Kenji Kangawa
Atrial natriuretic peptide (ANP) is a cardiac hormone released by the atrium in response to stretching forces. Via its receptor, guanylyl cyclase-A (GC-A), ANP maintains cardiovascular homeostasis by exerting diuretic, natriuretic, and hypotensive effects mediated in part by endothelial cells. Both in vivo and in vitro , ANP enhances endothelial barrier function by reducing RhoA activity and reorganizing the actin cytoskeleton. We established mouse endothelial cells that stably express GC-A, and used them to analyze the molecular mechanisms responsible for actin reorganization...
April 21, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28429698/coronary-microvascular-dysfunction-equivalent-to-left-main-coronary-artery-disease
#7
Cafer Panç, Mehmet Kocaağa, Onur Erdoğan, Remzi Sarıkaya, Sabahattin Umman
Coronary microvascular dysfunction, also known as cardiac syndrome X, is a clinical syndrome presenting with typical angina and evidence of myocardial ischemia in the absence of flow-limiting stenosis on coronary angiography. Of patients undergoing coronary angiography due to suspected myocardial ischemia, 50% are found to have normal or near-normal coronary arteries. Described in this case report is a patient who developed hypotension and ST segment depressions during treadmill exercise test. Left main coronary artery or multivessel disease was suspected...
April 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28428900/asymptomatic-severe-vagal-and-sympathetic-cardiac-denervation-in-holmes-adie-s-syndrome
#8
B Estañol, R C Callejas-Rojas, S Cortés, R Martínez-Memije, O Infante-Vázquez, G Delgado-García
A 40-year-old woman was found to have bilateral Adie's pupils and generalized muscle stretch areflexia. She did not have orthostatic hypotension but, in an ECG strip in the office, she appeared to have an almost fixed heart rate. We thus studied the heart rate variability (HRV) and the systolic blood pressure variability (SBPV) in supine and standing position and also during rhythmic breathing. We found a decreased HRV in the time domain with very low standard deviation in supine and standing position and during rhythmic breathing...
2017: Case Reports in Neurological Medicine
https://www.readbyqxmd.com/read/28428706/gastroesophageal-reflux-disease-and-morbid-obesity-to-sleeve-or-not-to-sleeve
#9
EDITORIAL
Fabrizio Rebecchi, Marco E Allaix, Marco G Patti, Francisco Schlottmann, Mario Morino
Laparoscopic sleeve gastrectomy (LSG) has reached wide popularity during the last 15 years, due to the limited morbidity and mortality rates, and the very good weight loss results and effects on comorbid conditions. However, there are concerns regarding the effects of LSG on gastroesophageal reflux disease (GERD). The interpretation of the current evidence is challenged by the fact that the LSG technique is not standardized, and most studies investigate the presence of GERD by assessing symptoms and the use of acid reducing medications only...
April 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28428483/a-retrospective-study-of-anesthesia-for-subcutaneous-ureteral-bypass-placement-in-cats-27-cases
#10
Geneviève C Luca, Beatriz P Monteiro, Marilyn Dunn, Paulo Vm Steagall
The goals of this retrospective clinical case series study were to describe the management of anesthesia, and to report perioperative complications in cats undergoing subcutaneous ureteral bypass (SUB) placement due to ureteral obstruction. Medical records of client-owned cats with ureteral obstruction and anesthetized for SUB placement between 2012 and 2015 in a veterinary teaching hospital were reviewed. Twenty-seven cases were identified. Duration of anesthesia and surgery (mean ± standard deviation) were 215 ± 42 min and 148 ± 36 min, respectively...
April 20, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28428252/low-frequency-blood-pressure-oscillations-and-inotrope-treatment-failure-in-premature-infants
#11
Zachary Andrew Vesoulis, Jessica Hao, Christopher McPherson, Nathalie El Ters, Amit M Mathur
BACKGROUND: The underlying mechanism as to why some hypotensive preterm infants do not respond to inotropic medications remains unclear. For these infants, we hypothesize that impaired vasomotor function is a significant factor and is manifested through a decrease in low-frequency blood pressure variability across regulatory components of vascular tone. METHODS: Infants born 28 weeks estimated gestational age underwent prospective recording of mean arterial blood pressure (MABP) for 72h after birth...
April 20, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28427767/%C3%AE-arrestins-negatively-control-human-adrenomedullin-type-1-receptor-internalization
#12
Kenji Kuwasako, Kazuo Kitamura, Sayaka Nagata, Toshio Sekiguchi, Jiang Danfeng, Manabu Murakami, Yuichi Hattori, Johji Kato
Adrenomedullin (AM) is a potent hypotensive peptide that exerts a powerful variety of protective effects against multiorgan damage through the AM type 1 receptor (AM1 receptor), which consists of the calcitonin receptor-like receptor (CLR) and receptor activity-modifying protein 2 (RAMP2). Two β-arrestin (β-arr) isoforms, β-arr-1 and β-arr-2, play a central role in the agonist-induced internalization of many receptors for receptor resensitization. Notably, β-arr-biased agonists are now being tested in phase II clinical trials, targeting acute pain and acute heart failure...
April 17, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28426466/physician-variation-in-time-to-antimicrobial-treatment-for-septic-patients-presenting-to-the-emergency-department
#13
Ithan D Peltan, Kristina H Mitchell, Kristina E Rudd, Blake A Mann, David J Carlbom, Catherine L Hough, Thomas D Rea, Samuel M Brown
OBJECTIVES: Delayed initiation of appropriate antimicrobials is linked to higher sepsis mortality. We investigated interphysician variation in septic patients' door-to-antimicrobial time. DESIGN: Retrospective cohort study. SETTING: Emergency department of an academic medical center. SUBJECTS: Adult patients treated with antimicrobials in the emergency department between 2009 and 2015 for fluid-refractory severe sepsis or septic shock...
April 6, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28426384/a-2-year-old-boy-with-circulatory-failure-owing-to-streptococcal-toxic-shock-syndrome-case-report
#14
Werner Keenswijk, Johan Vande Walle
A 2-year-old boy presented with severe hypotension and acute kidney injury after a prodrome of non-bloody diarrhoea and fever in the preceding 3 days. He had a mild Ebstein cardiac anomaly but otherwise a normal past history and growth. On examination, he looked ill, his temperature was 37.5 °C, circulation was poor, and there were several purpuric lesions on the face, hands and scrotum. Haemoglobin was 7.8 g/dL (11-14), total white cell count 27 × 10(9)/L, platelets 62 × 10(9)/L, blood urea nitrogen 20...
April 20, 2017: Paediatrics and International Child Health
https://www.readbyqxmd.com/read/28425335/the-incidence-of-and-risk-factors-for-postintubation-hypotension-in-the-immunocompromised-critically-ill-adult
#15
Nathan J Smischney, Mohamed O Seisa, John Cambest, Robert A Wiegand, Kyle D Busack, Theodore O Loftsgard, Darrell R Schroeder, Daniel A Diedrich
OBJECTIVES: Our primary aim was to ascertain the frequency of postintubation hypotension in immunocompromised critically ill adults with secondary aims of arriving at potential risk factors for the development of postintubation hypotension and its impact on patient-related outcomes. METHODS: Critically ill adult patients (≥18 years) were included from January 1, 2010, to December 31, 2014. We defined immunocompromised as patients with any solid organ or nonsolid organ malignancy or transplant, whether solid organ or not, requiring current chemotherapy...
January 1, 2017: Journal of Intensive Care Medicine
https://www.readbyqxmd.com/read/28421799/antihypertensive-effect-of-fermented-skim-camel-camelus-dromedarius-milk-on-spontaneously-hypertensive-rats
#16
Mohammed A Yahya, Omar A Alhaj, Abdullrahman S Al-Khalifah
BACKGROUND: Hypertension is one of the most common diseases in worldwide, thus prevention of hypertension is important in reducing the risks of cardiovascular disease. Milk contains bioactive peptides released during milk fermentation which lead to exhibit angiotensin I converting enzyme (ACE) inhibitory. OBJECTIVE: The aim of this study was to investigate the antihypertensive effect of fermented skim camel milk on rats and compared with unfermented skim camel milk as control...
March 30, 2017: Nutrición Hospitalaria: Organo Oficial de la Sociedad Española de Nutrición Parenteral y Enteral
https://www.readbyqxmd.com/read/28421173/cerebral-autoregulation-brain-injury-and-the-transitioning-premature-infant
#17
REVIEW
Zachary A Vesoulis, Amit M Mathur
Improvements in clinical management of the preterm infant have reduced the rates of the two most common forms of brain injury, such as severe intraventricular hemorrhage and white matter injury, both of which are contributory factors in the development of cerebral palsy. Nonetheless, they remain a persistent challenge and are associated with a significant increase in the risk of adverse neurodevelopment outcomes. Repeated episodes of ischemia-reperfusion represent a common pathway for both forms of injury, arising from discordance between systemic blood flow and the innate regulation of cerebral blood flow in the germinal matrix and periventricular white matter...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28421033/orthostatic-hypotension-predicts-cognitive-impairment-in-the-elderly-findings-from-a-cohort-study
#18
Haixia Huang, Tianheng Zheng, Fang Liu, Zhuoli Wu, Huazheng Liang, Shaoshi Wang
BACKGROUND: Orthostatic hypotension (OH) is a known risk factor for cerebral ischemia, but its correlation with cognitive impairment (CI) is not well established. OBJECTIVE: The aim of this study is to explore the relationship between OH and CI in the elderly. METHODS: The study group consisted of 44 OH patients who presented with drowsiness, vertigo, and fatigue between January 2009 and December 2011 (OH group). Eighty-eight healthy elderly were paired with those in the OH group in a 1:2 based on their education levels (NOH group)...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28420580/comparative-pharmacodynamic-analysis-of-imidazoline-compounds-using-rat-model-of-ocular-mydriasis-with-a-test-of-quantitative-structure-activity-relationships
#19
Joanna Raczak-Gutknecht, Antoni Nasal, Teresa Frąckowiak, Anita Kornicka, Franciszek Sączewski, Renata Wawrzyniak, Łukasz Kubik, Roman Kaliszan
Imidazol(in)e derivatives, having the chemical structure similar to clonidine, exert diverse pharmacological activities connected with their interactions with alpha2-adrenergic receptors, e.g. hypotension, bradycardia, sedation as well as antinociceptive, anxiolytic, antiarrhythmic, muscle relaxant and mydriatic effects. The mechanism of pupillary dilation observed after systemic administration of imidazol(in)es to rats, mice and cats depends on the stimulation of postsynaptic alpha2-adrenoceptors within the brain...
April 6, 2017: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28420542/improving-prehospital-trauma-care-in-rwanda-through-continuous-quality-improvement-an-interrupted-time-series-analysis
#20
John W Scott, Jeanne D'Arc Nyinawankusi, Samuel Enumah, Rebecca Maine, Eric Uwitonze, Yihan Hu, Ignace Kabagema, Jean Claude Byiringiro, Robert Riviello, Sudha Jayaraman
INTRODUCTION: Injury is a major cause of premature death and disability in East Africa, and high-quality pre-hospital care is essential for optimal trauma outcomes. The Rwandan pre-hospital emergency care service (SAMU) uses an electronic database to evaluate and optimize pre-hospital care through a continuous quality improvement programme (CQIP), beginning March 2014. MATERIALS AND METHODS: The SAMU database was used to assess pre-hospital quality metrics including supplementary oxygen for hypoxia (O2), intravenous fluids for hypotension (IVF), cervical collar placement for head injuries (c-collar), and either splinting (splint) or administration of pain medications (pain) for long bone fractures...
April 5, 2017: Injury
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