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https://www.readbyqxmd.com/read/28939427/yawning-a-thermoregulatory-mechanism-during-fever-a-study-of-yawning-frequency-and-its-predictors-during-experimentally-induced-sickness
#1
Alexandre Marraffa, Mats Lekander, Peter Solsjö, Mats J Olsson, Julie Lasselin, John Axelsson
Yawning has been proposed to serve both physiological and social functions, the latter likely to have developed later in its evolution. A central hypothesis is that yawning cools the brain but whether yawning is a thermoregulatory mechanism that is activated during hyperthermia (i.e., thermoregulatory failure) or is activated in any instance of brain temperature increase (e.g., also during fever) is unclear and experimental assessments of yawning during fever are lacking. In this study, we determined the effect of experimentally induced fever on yawning frequency...
September 19, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28913761/radioactive-seed-localization-versus-wire-guided-localization-for-nonpalpable-breast-cancer-a-cost-and-operating-room-efficiency-analysis
#2
Yimeng Zhang, Jean Seely, Erin Cordeiro, Joshua Hefler, Kednapa Thavorn, Mukta Mahajan, Sue Domina, Jon Aro, Andrea Marie Ibrahim, Angel Arnaout, Denis Gravel, Carolyn Nessim
BACKGROUND: This study aimed to compare the cost and resource use between our first-year experience using breast-conserving surgery (BCS) with radioactive seed localization (RSL) and the previous-year standard practice of BCS with wire-guided localization (WGL) for patients with nonpalpable breast cancer at a large Canadian tertiary center. METHODS: For this retrospective cohort study, data for BCS cases with RSL was collected from 1 April 2015 to 31 March 2016 and for BCS cases with WGL from 1 April 2014 to 31 March 2015...
September 14, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28895151/role-of-closed-loop-stimulation-pacing-cls-in-vasovagal-syncope
#3
REVIEW
Mohammed Ruzieh, Zaid Ammari, Osama Dasa, Saima Karim, Blair Grubb
Vasovagal syncope (VVS) or neurocardiogenic syncope is defined by transient loss of consciousness with spontaneous and rapid recovery. Recently, a closed loop stimulation pacing system (CLS) has emerged as a new strategy which appears superior to conventional pacing for patients with refractory syncope. However, it's efficacy remains of considerable debate and large randomized controlled clinical trials are needed. Between 2002 and 2017, 12 total studies evaluated the use of CLS pacing in patients with refractory VVS, and are summarized in this article...
September 12, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28891819/factors-influencing-successful-lumbar-puncture-in-alzheimer-research
#4
Krista L Moulder, Lilah M Besser, Duane Beekly, Kaj Blennow, Walter Kukull, John C Morris
OBJECTIVE: Lumbar puncture (LP) is increasingly common in Alzheimer disease research; however, agreement to undergo LP varies. We sought to determine factors influencing LP consent at Alzheimer's Disease Centers (ADCs) in the United States. METHODS: A 3-part survey was distributed to each ADC: (1) ADC LP Experience; (2) LP Requestor Experience; and (3) Patient LP Experience (both Initial and Follow-up). In all, 64 LP Requestor, 579 Patient/Initial, and 404 Patient/Follow-up surveys were collected...
September 7, 2017: Alzheimer Disease and Associated Disorders
https://www.readbyqxmd.com/read/28833993/high-fidelity-simulation-in-training-dental-students-for-medical-life-threatening-emergency
#5
E Roy, V E Quinsat, O Bazin, P Lesclous, C Lejus-Bourdeau
INTRODUCTION: Any dental surgeon may be faced with a critical life-threatening emergency situation. In our university, all students in dentistry receive a standard course on emergency first aid. The aim of this prospective, comparative, single-centre study was to determine whether additional training on a high-fidelity patient simulator would improve student performance. METHODS: After approval by an Ethical Committee and written informed consent, the students of the Simulation group (n=42) had full-scale high-fidelity training on a patient simulator SimMan 3G(™) (3 hours by six students)...
August 23, 2017: European Journal of Dental Education: Official Journal of the Association for Dental Education in Europe
https://www.readbyqxmd.com/read/28833215/facilitating-donor-compliance-with-strategies-to-prevent-vasovagal-reactions-comparison-of-web-based-and-in-center-approaches
#6
Amanda Thijsen, Jenny Fisher, Carley N Gemelli, Barbara Bell, Tanya E Davison, Barbara M Masser
BACKGROUND: Research has documented beneficial effects of water loading (WL) and applied muscle tension (AMT) on reducing self-reported vasovagal reactions (VVRs) in whole blood (WB) donors. However, the optimal approach to reducing VVRs using these strategies in routine blood collection practice is not known. This study evaluated the effectiveness of embedding newly developed web-based and on-site donor education materials to increase the use of these two prevention techniques during blood collection...
October 2017: Transfusion
https://www.readbyqxmd.com/read/28810256/dose-response-relationship-between-the-risk-of-vasovagal-syncope-and-body-mass-index-or-systolic-blood-pressure-in-young-adults-undergoing-blood-tests
#7
Tomohide Yamada, Shintaro Yanagimoto
No abstract text is available yet for this article.
August 16, 2017: Neuroepidemiology
https://www.readbyqxmd.com/read/28791782/predicting-short-term-risk-of-arrhythmia-among-patients-with-syncope-the-canadian-syncope-arrhythmia-risk-score
#8
Venkatesh Thiruganasambandamoorthy, Ian G Stiell, Marco L A Sivilotti, Brian H Rowe, Muhammad Mukarram, Kirtana Arcot, Kenneth Kwong, Andrew D McRae, George A Wells, Monica Taljaard
BACKGROUND: Syncope can be caused by serious occult arrhythmias not evident during initial emergency department (ED) evaluation. We sought to develop a risk-tool for predicting 30-day arrhythmia or death after ED disposition. METHODS: We conducted a multicenter prospective cohort study at six tertiary-care EDs and included adults (≥16 years) with syncope. We collected standardized variables from clinical evaluation, and investigations including ECG and troponin at index presentation...
August 9, 2017: Academic Emergency Medicine: Official Journal of the Society for Academic Emergency Medicine
https://www.readbyqxmd.com/read/28791606/vasovagal-tonus-index-vvti-as-an-indirect-assessment-of-remission-status-in-canine-multicentric-lymphoma-undergoing-multi-drug-chemotherapy
#9
Evi Pecceu, Brittainy Stebbing, Yolanda Martinez Pereira, Ian Handel, Geoff Culshaw, Hannah Hodgkiss-Geere, Jessica Lawrence
Vasovagal tonus index (VVTI) is an indirect measure of heart rate variability and may serve as a marker of disease severity. Higher heart rate variability has predicted lower tumour burden and improved survival in humans with various tumour types. The purpose of this pilot study was to evaluate VVTI as a biomarker of remission status in canine lymphoma. The primary hypothesis was that VVTI would be increased in dogs in remission compared to dogs out of remission. Twenty-seven dogs were prospectively enrolled if they had a diagnosis of intermediate to high-grade lymphoma and underwent multidrug chemotherapy...
August 8, 2017: Veterinary Research Communications
https://www.readbyqxmd.com/read/28779863/neurological-complications-of-cardiac-disease
#10
Nandini Madan, Karen S Carvalho
This article focuses on the complex interactions between the cardiovascular and neurologic systems. Initially, we focus on neurological complications in children with congenital heart disease both secondary to the underlying cardiac disease and complications of interventions. We later discuss diagnosis and management of common syncope syndromes with emphasis on vasovagal syncope. We also review the diagnosis, classification, and management of children and adolescents with postural orthostatic tachycardia syndrome...
February 2017: Seminars in Pediatric Neurology
https://www.readbyqxmd.com/read/28776824/pathophysiology-of-reflex-syncope-a-review
#11
REVIEW
Wayne O Adkisson, David G Benditt
In this correspondence the pathophysiology of reflex syncope (vasovagal syncope, carotid sinus syndrome and situational syncope) is reviewed, including clarification of the nomenclature. This article is protected by copyright. All rights reserved.
August 4, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28721322/etiology-and-age-distribution-of-syncope-in-a-predominantly-african-american-population
#12
Ahmad Awan, Hasan Iftikhar, Fasil Tiruneh, Shahabuddin Soherwardi, Daniel Larbi
BACKGROUND: Syncope, the sudden transient loss of consciousness due to multiple etiologies, usually has worse outcomes in African Americans compared with other races because of other comorbidities. This study aims to identify a correlation between the etiologies of syncope and age in a predominantly African-American sample population to facilitate future investigations with potentially improved specificity to address this condition. METHODS: We reviewed the medical records of 155 patients who presented with syncope concerns to the emergency department at our university hospital...
June 14, 2017: Curēus
https://www.readbyqxmd.com/read/28718664/short-term-complications-for-percutaneous-ultrasound-guided-biopsy-of-renal-masses-in-adult-outpatients
#13
Lars René Rasmussen, Martina Loft, Tommy Kjærgaard Nielsen, Marie Bjødstrup Jensen, Søren Høyer, Arne Hørlyck, Ole Graumann
Background Ultrasound-guided percutaneous kidney tumor biopsy (UGPKB) plays an important role in the diagnosis of renal tumor but there are no consensuses with respect to the length and the extend of the post-biopsy observation period. Purpose To assess the short-term complication rate after UGPKB and to evaluate whether the onset of complications allows for the procedure to be performed in an outpatient setting with same-day discharge. Material and Methods Between March 2012 and March 2014, a total of 287 UGPKB were performed in an outpatient setting at a Danish university referral center...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28710604/pacing-and-vasovagal-syncope-back-to-our-physiologic-roots
#14
EDITORIAL
Robert S Sheldon, Satish R Raj
No abstract text is available yet for this article.
August 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28699049/the-target-of-vasovagal-syncope-is-hemostasis-and-not-heart-protection
#15
EDITORIAL
Rolf R Diehl
No abstract text is available yet for this article.
August 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
https://www.readbyqxmd.com/read/28685699/pharmacological-treatment-of-vagal-hyperactivity-a-rare-but-potentially-fatal-cause-of-sudden-cardiac-death
#16
Pier Paolo Bassareo, Daniele Cocco, Valentina Bassareo, Stefano Bandino, Giuseppe Mercuro
Vasovagal reaction, resulting in bradycardia and/or hypotension in response to a number of stimuli, is usually self limitant, but potentially life-threatening exceptions have been described. Pharmacological treatment of proven efficacy is still lacking and the administered compounds are often chosen on the basis of either case reports or outdated small studies with a short-term follow up. In refractory cases, pacemaker implantation may be considered, although no responder patients represent a severe challenge for clinicians...
July 7, 2017: Mini Reviews in Medicinal Chemistry
https://www.readbyqxmd.com/read/28681121/indexes-of-cerebral-autoregulation-do-not-reflect-impairment-in-syncope-insights-from-head-up-tilt-test-of-vasovagal-and-autonomic-failure-subjects
#17
Pedro Castro, João Freitas, Rosa Santos, Ronney Panerai, Elsa Azevedo
PURPOSE: The study of dynamic cerebral autoregulation (CA), which adapts cerebral blood flow to arterial blood pressure (ABP) fluctuations, has been limited in orthostatic intolerance syndromes, mainly due to its stationary prerequisites hardly to meet during maneuvers to provoke syncope itself. New techniques of continuous estimates of CA could overcome this pitfall. We aimed to evaluate CA during head-up tilt test in common conditions causing syncope. METHODS: We compared three groups: eight controls; eight patients with autonomic failure due to familial amyloidotic polyneuropathy; eight patients with vasovagal syncope (VVS)...
July 5, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/28674967/adverse-events-during-ct-colonography-for-screening-diagnosis-and-preoperative-staging-of-colorectal-cancer-a-japanese-national-survey
#18
Koichi Nagata, Ken Takabayashi, Takaaki Yasuda, Michiaki Hirayama, Shungo Endo, Ryoichi Nozaki, Takenobu Shimada, Hidenori Kanazawa, Masanori Fujiwara, Norihito Shimizu, Tatema Iwatsuki, Teruaki Iwano, Hiroshi Saito
OBJECTIVES: To retrospectively evaluate the frequencies and magnitudes of adverse events associated with computed tomographic colonography (CTC) for screening, diagnosis and preoperative staging of colorectal cancer. METHODS: A Japanese national survey on CTC was administered by use of an online survey tool in the form of a questionnaire. The questions covered mortality, colorectal perforation, vasovagal reaction, total number of examinations, and examination procedures...
July 3, 2017: European Radiology
https://www.readbyqxmd.com/read/28674628/syndromes-of-orthostatic-intolerance-and-syncope-in-young-adults
#19
Viktor Hamrefors, Jasmina Medic Spahic, David Nilsson, Martin Senneby, Richard Sutton, Olle Melander, Artur Fedorowski
OBJECTIVE: To explore the clinical and neuroendocrine characteristics of syndromes of orthostatic intolerance and syncope in young adults. METHODS: Two hundred and thirty-six patients aged 18-40 years with orthostatic intolerance and/or syncope were examined by head-up tilt test (HUT). Plasma levels of epinephrine, norepinephrine, renin, C-terminal-pro-arginine-vasopressin (CT-proAVP), C-terminal-endothelin-1 and mid-regional-fragment of pro-atrial-natriuretic-peptide (MR-proANP) were analysed...
2017: Open Heart
https://www.readbyqxmd.com/read/28669088/vasovagal-syncope-with-asystole-the-role-of-cardiac-pacing
#20
REVIEW
Michele Brignole, Marco Tomaino, Alessio Gargaro
Whereas cardiac pacing has a very limited role overall in patients with vasovagal syncope (VVS), there are three reasons which support pacing efficacy in tilt-induced asystolic VVS. These are: (1) contrary to mixed and vasodepressor forms, an asystolic tilt response is specific, i.e., diagnostic, of VVS and is unlikely to occur in control patients without history of syncope and in patients with cardiac syncope; (2) contrary to mixed and vasodepressor forms, an asystolic tilt response predicts a similar asystolic event during prolonged ECG monitoring with a positive predictive value of 86%; (3) the available evidence from trials supports the efficacy of dual-chamber pacing with a low recurrence rate of syncope after pacing ranging from 6% up to 23% during 3 years of follow-up...
August 2017: Clinical Autonomic Research: Official Journal of the Clinical Autonomic Research Society
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