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https://www.readbyqxmd.com/read/28428483/a-retrospective-study-of-anesthesia-for-subcutaneous-ureteral-bypass-placement-in-cats-27-cases
#1
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/28427082/perioperative-outcomes-and-safety-of-atrial-fibrillation-catheter-ablation-in-octogenarians-a-retrospective-study-and-review-of-the-benefits-of-rhythm-control
#2
Stephanie Hakimian, Juan C Camacho, Edwin Grajeda Silvestri, Farid AbdelMalak, Elie Donath, Robert Chait
OBJECTIVES: Catheter ablation for rhythm control has emerged as a successful therapeutic option for the treatment of atrial fibrillation (AF), though it has not been well studied in octogenarians. This study evaluates its safety in octogenarians in a community hospital and reviews the benefits of rhythm control. METHODS: Among 1,592 patients undergoing AF ablation, 84 octogenarian were identified. The primary outcome was normal sinus rhythm (NSR) on electrocardiogram at discharge...
April 21, 2017: Cardiology
https://www.readbyqxmd.com/read/28424310/heart-rate-regulation-in-diving-sea-lions-the-vagus-nerve-rules
#3
REVIEW
Paul J Ponganis, Birgitte I McDonald, Michael S Tift, Cassondra L Williams
Recent publications have emphasized the potential generation of morbid cardiac arrhythmias secondary to autonomic conflict in diving marine mammals. Such conflict, as typified by cardiovascular responses to cold water immersion in humans, has been proposed to result from exercise-related activation of cardiac sympathetic fibers to increase heart rate, combined with depth-related changes in parasympathetic tone to decrease heart rate. After reviewing the marine mammal literature and evaluating heart rate profiles of diving California sea lions (Zalophus californianus), we present an alternative interpretation of heart rate regulation that de-emphasizes the concept of autonomic conflict and the risk of morbid arrhythmias in marine mammals...
April 15, 2017: Journal of Experimental Biology
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
#4
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/28400936/clinical-profile-and-management-of-poisoning-with-suicide-tree-an-observational-study
#5
M Suraj Menon, Prasantha Kumar, C I Jayachandran
INTRODUCTION: The clinical features, management, and the associations of dosage in poisoning with the cardiotoxic plant Cerbera odollam (suicide tree), responsible for more than half of plant poisoning deaths in the South Indian State of Kerala alone, have not been evaluated. There are only few studies on its clinical features and none on the usage of cardiac pacing in its management, given its rarity in the Western world. We depend on data for similar toxins to form our management protocols...
October 2016: Heart Views: the Official Journal of the Gulf Heart Association
https://www.readbyqxmd.com/read/28386925/vagus-nerve-stimulation-surgical-technique-of-implantation-and-revision-and-related-morbidity
#6
Flavio Giordano, Anna Zicca, Carmen Barba, Renzo Guerrini, Lorenzo Genitori
Indications for vagus nerve stimulation (VNS) therapy include focal, multifocal epilepsy, drop attacks (tonic/atonic seizures), Lennox-Gastaut syndrome, tuberous sclerosis complex (TSC)-related multifocal epilepsy, and unsuccessful resective surgery. Surgical outcome is about 50-60% for seizures control, and may also improve mood, cognition, and memory. On this basis, VNS has also been proposed for the treatment of major depression and Alzheimer's' disease. The vagus nerve stimulator must be implanted with blunt technique on the left side to avoid cardiac side effects through the classic approach for anterior cervical discectomy...
April 2017: Epilepsia
https://www.readbyqxmd.com/read/28381749/systemic-air-embolism-following-diagnostic-bronchoscopy
#7
Taisuke Tsuji, Shoko Sonobe, Taro Koba, Toshiya Maekura, Naoko Takeuchi, Kazunobu Tachibana
A 51-year-old man was admitted to have a nodule evaluated using chest computed tomography (CT). Shortly after curetting and transbronchial biopsies via bronchoscopy, hypotension, bradycardia, unconsciousness, and left hemiplegia appeared and resolved within one hour. Head CT showed cerebral air embolism. The following day, lower left quadrant pain developed. Pneumatosis intestinalis on abdominal CT and elevation of creatine kinase and troponin T levels indicated air embolism in the mesenteric and coronary arteries...
2017: Internal Medicine
https://www.readbyqxmd.com/read/28379176/ostreolysin-a-pleurotolysin-b-and-equinatoxins-structure-function-and-pathophysiological-effects-of-these-pore-forming-proteins
#8
REVIEW
Robert Frangež, Dušan Šuput, Jordi Molgó, Evelyne Benoit
Acidic ostreolysin A/pleurotolysin B (OlyA/PlyB, formerly known as ostreolysin (Oly), and basic 20 kDa equinatoxins (EqTs) are cytolytic proteins isolated from the edible mushroom Pleurotus ostreatus and the sea anemone Actinia equina, respectively. Both toxins, although from different sources, share many similar biological activities: (i) colloid-osmotic shock by forming pores in cellular and artificial membranes enriched in cholesterol and sphingomyelin; (ii) increased vascular endothelial wall permeability in vivo and perivascular oedema; (iii) dose-dependent contraction of coronary vessels; (iv) haemolysis with pronounced hyperkalaemia in vivo; (v) bradycardia, myocardial ischemia and ventricular extrasystoles accompanied by progressive fall of arterial blood pressure and respiratory arrest in rodents...
April 5, 2017: Toxins
https://www.readbyqxmd.com/read/28373132/development-and-validation-of-a-dual-sensing-scheme-to-improve-accuracy-of-bradycardia-and-pause-detection-in-an-insertable-cardiac-monitor
#9
Rod S Passman, John D Rogers, Shantanu Sarkar, Jerry Reiland, Erin Reisfeld, Jodi Koehler, Suneet Mittal
BACKGROUND: Under-sensing of premature ventricular beats and low amplitude R-waves are primary causes for inappropriate bradycardia and pause detection in insertable cardiac monitors (ICM). OBJECTIVE: Development of an enhanced algorithm to reduce inappropriately detected bradycardia and pause episodes. METHODS: Independent datasets to develop and validate the enhanced algorithm were derived from a database of ICM detected bradycardia and pause episodes in de-identified patients monitored for unexplained syncope...
March 31, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28352237/reduced-freezing-in-posttraumatic-stress-disorder-patients-while-watching-affective-pictures
#10
Iro Fragkaki, Karin Roelofs, John Stins, Ruud A Jongedijk, Muriel A Hagenaars
Besides fight and flight responses, animals and humans may respond to threat with freezing, a response characterized by bradycardia and physical immobility. Risk assessment is proposed to be enhanced during freezing to promote optimal decision making. Indeed, healthy participants showed freezing-like responses to threat cues. Posttraumatic stress disorder (PTSD) patients are characterized by hypervigilance and increased threat responsiveness. We propose that threat responses will be characterized by decreased freezing in PTSD, eliminating possibilities for rejecting cognitive distortions, such as harm expectancy, and thereby contributing to the maintenance of the disorder...
2017: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/28341362/sinus-bradycardia-in-habitual-cocaine-users
#11
Sona M Franklin, Sudarone Thihalolipavan, John M Fontaine
Common physiological manifestations of cocaine are related to its adrenergic effects, due to inhibition of dopamine and norepinephrine uptake at the postsynaptic terminal. Few studies have documented bradycardia secondary to cocaine use, representing the antithesis of its adrenergic effects. We assessed the prevalence of sinus bradycardia (SB) in habitual cocaine users and postulated a mechanism for this effect. One hundred sixty-two patients with a history of cocaine use were analyzed and compared with age- and gender-matched controls...
March 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28333936/adenosine-for-postoperative-analgesia-a-systematic-review-and-meta-analysis
#12
Xin Jin, Weidong Mi
PURPOSE: Perioperative infusion of adenosine has been suggested to reduce the requirement for inhalation anesthetics, without causing serious adverse effects in humans. We conducted a meta-analysis of randomized controlled trials evaluating the effect of adenosine on postoperative analgesia. METHODS: We retrieved articles in computerized searches of Scopus, Web of Science, PubMed, EMBASE, and Cochrane Library databases, up to July 2016. We used adenosine, postoperative analgesia, and postoperative pain(s) as key words, with humans, RCT, and CCT as filters...
2017: PloS One
https://www.readbyqxmd.com/read/28320892/sepiapterin-reductase-gene-disrupted-mice-suffer-from-hypertension-with-fluctuation-and-bradycardia
#13
Chiho Sumi-Ichinose, Yui Suganuma, Taiki Kano, Noriko Ihira, Hiroko Nomura, Kazuhisa Ikemoto, Tadayoshi Hata, Setsuko Katoh, Hiroshi Ichinose, Kazunao Kondo
(6R)-l-erythro-5,6,7,8-Tetrahydrobiopterin (BH4) is an essential cofactor for monoamine and nitric oxide (NO) production. Sepiapterin reductase (SPR) catalyzes the final step in BH4 biosynthesis. We analyzed the cardiovascular function of adult Spr gene-disrupted (Spr(-/-)) mice for the first time. After weaning, Spr(-/-) mice suffered from hypertension with fluctuation and bradycardia, while the monoamine contents in these mice were less than 10% of those in the wild-type mice as a result of BH4 depletion...
March 2017: Physiological Reports
https://www.readbyqxmd.com/read/28302610/selective-versus-standard-poststent-dilation-for-carotid-artery-disease-a-systematic-review-and-meta-analysis
#14
O Petr, W Brinjikji, M H Murad, B Glodny, G Lanzino
BACKROUND: The safety and efficacy of standard poststent angioplasty in patients undergoing carotid artery stent placement have not been well-established. PURPOSE: We conducted a systematic review of the literature to evaluate the safety and efficacy of carotid artery stent placement and analyzed outcomes of standard-versus-selective poststent angioplasty. DATA SOURCES: A systematic search of MEDLINE, EMBASE, Scopus, and the Web of Science was performed for studies published between January 2000 and January 2015...
March 16, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/28298760/the-effectiveness-of-intravenous-dexmedetomidine-on-perioperative-hemodynamics-analgesic-requirement-and-side-effects-profile-in-patients-undergoing-laparoscopic-surgery-under-general-anesthesia
#15
Vinayak Panchgar, Akshaya N Shetti, H B Sunitha, Vithal K Dhulkhed, A V Nadkarni
BACKGROUND: There is an upward surge in the use of laparoscopic surgeries due to various advantages when compared to open surgeries. Major advantages are, due to small incisions which are cosmetically acceptable and most of them are now daycare procedures. Problem of economic burden and hospital bed occupancy has been overcome with laparoscopic surgeries. All these advantages are not free from disadvantages, as hemodynamic changes such as hypertension; tachycardia and other surgical-related complications are commonly observed intraoperatively...
January 2017: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/28289401/sleep-disorders-is-the-trigemino-cardiac-reflex-a-missing-link
#16
REVIEW
Tumul Chowdhury, Barkha Bindu, Gyaninder Pal Singh, Bernhard Schaller
Trigeminal innervated areas in face, nasolacrimal, and nasal mucosa can produce a wide array of cardiorespiratory manifestations that include apnea, bradypnea, bradycardia, hypotension, and arrhythmias. This reflex is a well-known entity called "trigemino-cardiac reflex" (TCR). The role of TCR is investigated in various pathophysiological conditions especially in neurosurgical, but also skull base surgery procedures. Additionally, its significance in various sleep-related disorders has also been highlighted recently...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28286836/intravenous-amiodarone-versus-digoxin-in-atrial-fibrillation-rate-control-a-clinical-trial
#17
Majid Shojaee, Bahareh Feizi, Reza Miri, Jalil Etemadi, Amir Hossein Feizi
INTRODUCTION: Treatment of rapid ventricular response arterial fibrillation (rapid AF) varies depending on the decision of the in-charge physician, condition of the patient, availability of the drug, and the treatment protocol of the hospital. The present study was designed aiming to compare IV digoxin and amiodarone in controlling the heart rate of patients presenting to emergency department with rapid AF and relative contraindication for first line drug in this regard. METHOD: In the present clinical trial, patients presented to the ED with rapid AF and relative contraindication for calcium channel blockers and beta-blockers were treated with either IV amiodarone or IV digoxin and compared regarding success rate and complication using SPSS version 22...
2017: Emergency (Tehran, Iran)
https://www.readbyqxmd.com/read/28283018/tramadol-vs-dexmedetomidine-for-emergence-agitation-control-in-pediatric-patients-undergoing-adenotonsillectomy-with-sevoflurane-anesthesia-prospective-randomized-controlled-clinical-study
#18
Nurdan Bedirli, Mehmet Akçabay, Ulku Emik
BACKGROUND: This study was designed to compare the efficacy of an intraoperative single dose administration of tramadol and dexmedetomidine on hemodynamics and postoperative recovery profile including pain, sedation, emerge reactions in pediatric patients undergoing adenotonsillectomy with sevoflurane anesthesia. METHODS: Seventy-seven patient, aged 2-12, undergoing adenotonsillectomy with sevoflurane anesthesia was enrolled in this study. Patients were randomly assigned to receive either intravenous 2 mg/kg tramadol (Group T; n = 39) or 1 μg/kg dexmedetomidine (Group D; n = 38) after intubation...
March 11, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28270794/antagonistic-and-synergistic-activation-of-cardiovascular-vagal-and-sympathetic-motor-outflows-in-trigeminal-reflexes
#19
REVIEW
Bruno Buchholz, Jazmín Kelly, Eduardo A Bernatene, Nahuel Méndez Diodati, Ricardo J Gelpi
The trigeminal nerve and heart are strongly related through somato-autonomic nervous reflexes that induce rapid changes in cardiovascular function. Several trigeminal reflexes have been described, but the diving and trigeminocardiac reflexes are the most studied. The heart is a target organ dually innervated by the sympathetic and parasympathetic systems. Thus, how cardiac function is regulated during the trigeminal reflexes is the result of the combination of an increased parasympathetic response and increased, decreased, or unaltered sympathetic activity...
2017: Frontiers in Neurology
https://www.readbyqxmd.com/read/28243683/effect-of-alectinib-on-cardiac-electrophysiology-results-from-intensive-electrocardiogram-monitoring-from-the-pivotal-phase-ii-np28761-and-np28673-studies
#20
Peter N Morcos, Katrijn Bogman, Stanislas Hubeaux, Carolina Sturm-Pellanda, Thorsten Ruf, Walter Bordogna, Sophie Golding, Ali Zeaiter, Markus Abt, Bogdana Balas
PURPOSE: Alectinib, a central nervous system (CNS)-active ALK inhibitor, has demonstrated efficacy and safety in ALK+ non-small-cell lung cancer that has progressed following crizotinib treatment. Other ALK inhibitors have shown concentration-dependent QTc prolongation and treatment-related bradycardia. Therefore, this analysis evaluated alectinib safety in terms of electrophysiologic parameters. METHODS: Intensive triplicate centrally read electrocardiogram (ECG) and matched pharmacokinetic data were collected across two alectinib single-arm trials...
February 27, 2017: Cancer Chemotherapy and Pharmacology
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