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hypothermia, anesthesia

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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/28417829/comparison-of-3-methods-for-preventing-perianesthetic-hypothermia-in-callimicos-callimico-goeldii
#2
Sathya K Chinnadurai James G Johnson Iii And Jennifer N Langan
Perianesthetic hypothermia is one of the most common complications in veterinary anesthesia, especially in small patients with a large body surface area to mass ratio. During anesthesia, body heat can be lost through 4 mechanisms-radiation, convection,conduction, and evaporation-but anesthetists frequently address only one mechanism at a time. Here we sought to evaluate 3 methods of preventing perianesthetic hypothermia in callimicos (Callimico goeldii). In our experience, these smallNHP routinely become hypothermic under even brief inhalant anesthesia...
April 17, 2017: Journal of the American Association for Laboratory Animal Science: JAALAS
https://www.readbyqxmd.com/read/28413524/perioperative-complications-in-endovascular-neurosurgery-anesthesiologist-s-perspective
#3
Megha U Sharma, Pragati Ganjoo, Daljit Singh, Monica S Tandon, Jyotsna Agarwal, Durga P Sharma, Anita Jagetia
BACKGROUND: Endovascular neurosurgery is known to be associated with potentially serious perioperative complications that can impact the course and outcome of anesthesia. We present here our institutional experience in the anesthetic management of various endovascular neurosurgical procedures and their related complications over a 10-year period. METHODS: Data was obtained in 240 patients pertaining to their preoperative status, details of anesthesia and surgery, perioperative course and surgery-related complications...
January 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28378266/comparison-of-forced-air-warming-systems-in-prevention-of-intraoperative-hypothermia
#4
Volkan Alparslan, Alparslan Kus, Tulay Hosten, Mehmet Ertargin, Dilek Ozdamar, Kamil Toker, Mine Solak
In this study, we aimed to compare the effects of forced-air warming upper body blankets and forced-air warming underbody blankets on intraoperative hypothermia in patients who were planned to undergo open abdominal surgical operations in which extensive heat loss occurs. This prospective and randomized study included 92 patients who would undergo lower abdominal surgery under general anesthesia. Patients were randomized by closed envelope method and divided into two groups. Group I (n:46) included the patients who would receive warming with forced-air warming upper body blanket, and Group II (n:46) consisted of the patients who received warming with forced-air warming underbody blanket...
April 4, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28378088/central-activation-of-the-a1-adenosine-receptor-in-fed-mice-recapitulates-only-some-of-the-attributes-of-daily-torpor
#5
Maria A Vicent, Ethan D Borre, Steven J Swoap
Mice enter bouts of daily torpor, drastically reducing metabolic rate, core body temperature (T b), and heart rate (HR), in response to reduced caloric intake. Because central adenosine activation has been shown to induce a torpor-like state in the arctic ground squirrel, and blocking the adenosine-1 (A1) receptor prevents daily torpor, we hypothesized that central activation of the A1 adenosine receptors would induce a bout of natural torpor in mice. To test the hypothesis, mice were subjected to four different hypothermia bouts: natural torpor, forced hypothermia (FH), isoflurane-anesthesia, and an intracerebroventricular injection of the selective A1 receptor agonist N(6-)cyclohexyladenosine (CHA)...
April 4, 2017: Journal of Comparative Physiology. B, Biochemical, Systemic, and Environmental Physiology
https://www.readbyqxmd.com/read/28372696/effectiveness-of-active-and-passive-warming-for-the-prevention-of-inadvertent-hypothermia-in-patients-receiving-neuraxial-anesthesia-a-systematic-review-and-meta-analysis-of-randomized-controlled-trials
#6
Clarissa A Shaw, Victoria M Steelman, Jennifer DeBerg, Marin L Schweizer
OBJECTIVE: Perioperative hypothermia is a common complication of anesthesia that can result in negative outcomes. The purpose of this review is to answer the question: Does the type of warming intervention influence the frequency or severity of inadvertent perioperative hypothermia (IPH) in surgical patients receiving neuraxial anesthesia? DESIGN: Systematic review and meta-analysis. SETTING: Perioperative care areas. PATIENTS: Adults undergoing surgery with neuraxial anesthesia...
May 2017: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/28330928/surgery-for-cancer-a-trigger-for-metastases
#7
REVIEW
Samer Tohme, Richard L Simmons, Allan Tsung
Surgery is a crucial intervention and provides a chance of cure for patients with cancer. The perioperative period is characterized by an increased risk for accelerated growth of micrometastatic disease and increased formation of new metastatic foci. The true impact for cancer patients remains unclear. This review summarizes the often fragmentary clinical and experimental evidence supporting the role of surgery and inflammation as potential triggers for disease recurrence. Surgery induces increased shedding of cancer cells into the circulation, suppresses antitumor immunity allowing circulating cells to survive, upregulates adhesion molecules in target organs, recruits immune cells capable of entrapping tumor cells, and induces changes in the target tissue and in the cancer cells themselves to enhance migration and invasion to establish at the target site...
April 1, 2017: Cancer Research
https://www.readbyqxmd.com/read/28248539/in-vivo-recording-of-nerve-conduction-velocity-of-spinal-cns-fibers-in-the-mouse
#8
P Dibaj, E D Schomburg
Anesthetic and surgical procedures and an electrophysiological method were developed for recording nerve conduction velocity (NCV) of CNS fibers in the murine spinal cord. Under intravenous anesthesia and artificial ventilation the lumbar spinal cord segments L1 to L4 and dorsal roots L3 to L5 on the left side were exposed by laminectomy. After stimulation of the dorsal root L4, a compound action potential (CAP) was recorded at the ipsilateral left fasciculus gracilis at the spinal cord level L1. The latency from stimulation to the CAP together with the measured distance between the electrodes was used for the determination of the NCV...
February 28, 2017: Physiological Research
https://www.readbyqxmd.com/read/28231032/effects-of-live-trapping-and-isoflurane-anesthesia-on-free-ranging-american-martens-martes-americana
#9
Maria C Spriggs, Lisa I Muller, Paul Keenlance, Robert L Sanders, Jill C Witt, Debra L Miller
Seventy-two free-ranging American martens ( Martes americana ) in Michigan were immobilized using isoflurane from 2011 to 2015. In total, 129 anesthetic procedures were performed with no mortalities. Hypothermia and hyperthermia were the most common anesthetic complications, and the mean rectal temperatures were significantly higher during summer than in winter. Dental abnormalities were common; the majority of abnormal findings were broken or discolored teeth attributed to previous dental trauma and were not trap-induced...
February 23, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28228717/mild-hypothermia-attenuates-the-anesthetic-isoflurane-induced-cytotoxicity
#10
Cheng Li, Yuanlin Dong, Dan Chen, Zhongcong Xie, Yiying Zhang
The commonly used inhalation anesthetic isoflurane has been reported to induce DNA damage and cytotoxicity. However, the methods to attenuate these effects remain largely to be determined. Mild hypothermia has neuroprotective effects. We therefore set out to assess whether mild hypothermia could protect the isoflurane-induced DNA damage and cytotoxicity. Moreover, we investigated the underlying mechanisms by assessing the effects of mild hypothermia on the isoflurane-induced changes in ATP levels. H4 human neuroglioma cells were treated with 2% isoflurane for 3 or 6 h with and without mild hypothermia (35°C)...
2017: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/28216687/effect-of-pre-warming-on-perioperative-hypothermia-and-anesthetic-recovery-in-small-breed-dogs-undergoing-ovariohysterectomy
#11
Turi K Aarnes, Richard M Bednarski, Phillip Lerche, John A E Hubbell
This study compared perianesthetic body temperatures and times to recovery from general anesthesia in small dogs that were either warmed for 20 minutes prior to anesthesia or not warmed. Twenty-eight client-owned dogs that were presented for ovariohysterectomy were included in the study. Small (<10 kg body weight) dogs with normal circulatory status were randomly assigned to receive pre-warming for 20 minutes or no treatment. Body temperature was measured during the procedure using a calibrated rectal probe...
February 2017: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/28196356/therapeutic-hypothermia-provides-variable-protection-against-behavioral-deficits-after-neonatal-hypoxia-ischemia-a-potential-role-for-brain-derived-neurotrophic-factor
#12
Johana Diaz, Suleiman Abiola, Nancy Kim, Oliver Avaritt, Debra Flock, Jenny Yu, Frances J Northington, Raul Chavez-Valdez
BACKGROUND: Despite treatment with therapeutic hypothermia (TH), infants who survive hypoxic ischemic (HI) encephalopathy (HIE) have persistent neurological abnormalities at school age. Protection by TH against HI brain injury is variable in both humans and animal models. Our current preclinical model of hypoxia-ischemia (HI) and TH displays this variability of outcomes in neuropathological and neuroimaging end points with some sexual dimorphism. The detailed behavioral phenotype of this model is unknown...
February 15, 2017: Developmental Neuroscience
https://www.readbyqxmd.com/read/28122159/hypothermia-and-targeted-temperature-management-in-cats-and-dogs
#13
Andrea Brodeur, Annie Wright, Yonaira Cortes
OBJECTIVE: To review current knowledge surrounding the effects, treatment, and prognosis of hypothermia in people, dogs, and cats, as well as the application of therapeutic hypothermia in clinical medicine. ETIOLOGY: Hypothermia may be a primary or secondary condition, and may be due to environmental exposure, illness, medications, anesthesia, or trauma. Hypothermia has been applied therapeutically in human medicine for a variety of conditions, including postcardiac arrest...
January 25, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28118390/anesthesia-induced-hypothermia-attenuates-early-phase-blood-brain-barrier-disruption-but-not-infarct-volume-following-cerebral-ischemia
#14
Yu-Cheng Liu, Yu-Da Lee, Hwai-Lee Wang, Kate Hsiurong Liao, Kuen-Bao Chen, Kin-Shing Poon, Yu-Ling Pan, Ted Weita Lai
Blood-brain barrier (BBB) disruption is thought to facilitate the development of cerebral infarction after a stroke. In a typical stroke model (such as the one used in this study), the early phase of BBB disruption reaches a peak 6 h post-ischemia and largely recovers after 8-24 h, whereas the late phase of BBB disruption begins 48-58 h post-ischemia. Because cerebral infarct develops within 24 h after the onset of ischemia, and several therapeutic agents have been shown to reduce the infarct volume when administered at 6 h post-ischemia, we hypothesized that attenuating BBB disruption at its peak (6 h post-ischemia) can also decrease the infarct volume measured at 24 h...
2017: PloS One
https://www.readbyqxmd.com/read/28070632/-prevention-of-perioperative-hypothermia-implementation-of-the-s3-guideline
#15
E-P Horn, E Klar, J Höcker, A Bräuer, B Bein, H Wulf, A Torossian
To improve perioperative quality and patient safety, the German S3 guideline should be consistently implemented to avoid perioperative hypothermia. Perioperative normothermia is a quality indicator and should be achieved by anesthesiologists and surgeons. To detect hypothermia early during the perioperative process, measuring body temperature should be started 1-2 h preoperatively. Patients should be actively warmed for 20-30 min before starting anesthesia. Prewarming is most effective and should be included in the preoperative process...
January 9, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28002714/hypothermia-for-neuroprotection-in-convulsive-status-epilepticus
#16
RANDOMIZED CONTROLLED TRIAL
Stephane Legriel, Virginie Lemiale, Maleka Schenck, Jonathan Chelly, Virginie Laurent, Fabrice Daviaud, Mohamed Srairi, Aicha Hamdi, Guillaume Geri, Thomas Rossignol, Julia Hilly-Ginoux, Julie Boisramé-Helms, Benjamin Louart, Isabelle Malissin, Nicolas Mongardon, Benjamin Planquette, Marina Thirion, Sybille Merceron, Emmanuel Canet, Fernando Pico, Yves-Roger Tran-Dinh, Jean-Pierre Bedos, Elie Azoulay, Matthieu Resche-Rigon, Alain Cariou
BACKGROUND: Convulsive status epilepticus often results in permanent neurologic impairment. We evaluated the effect of induced hypothermia on neurologic outcomes in patients with convulsive status epilepticus. METHODS: In a multicenter trial, we randomly assigned 270 critically ill patients with convulsive status epilepticus who were receiving mechanical ventilation to hypothermia (32 to 34°C for 24 hours) in addition to standard care or to standard care alone; 268 patients were included in the analysis...
December 22, 2016: New England Journal of Medicine
https://www.readbyqxmd.com/read/27976517/warmed-humidified-co2-insufflation-benefits-intraoperative-core-temperature-during-laparoscopic-surgery-a-meta-analysis
#17
Meara Dean, Robert Ramsay, Alexander Heriot, John Mackay, Richard Hiscock, A Craig Lynch
BACKGROUND: Intraoperative hypothermia is linked to postoperative adverse events. The use of warmed, humidified CO2 to establish pneumoperitoneum during laparoscopy has been associated with reduced incidence of intraoperative hypothermia. However, the small number and variable quality of published studies have caused uncertainty about the potential benefit of this therapy. This meta-analysis was conducted to specifically evaluate the effects of warmed, humidified CO2 during laparoscopy...
December 14, 2016: Asian Journal of Endoscopic Surgery
https://www.readbyqxmd.com/read/27871559/quality-of-recovery-from-anesthesia-of-patients-undergoing-balanced-or-total-intravenous-general-anesthesia-prospective-randomized-clinical-trial
#18
Eduardo Toshiyuki Moro, Fábio Caetano Oliveira Leme, Bernardo Roveda Noronha, Gustavo Farinha Pinto Saraiva, Nathália Vianna de Matos Leite, Laís Helena Camacho Navarro
STUDY OBJECTIVES: The aim of the present study was to assess the quality of recovery from anesthesia of patients subjected to otorhinolaryngological (ORL) surgery under balanced or total intravenous general anesthesia by means of Quality of Recovery-40 (QoR-40) questionnaire. DESIGN: Prospective randomized clinical trial. SETTING: The setting is at an operating room, a postoperative recovery area, and a hospital ward. PATIENTS: One-hundred thirty American Society of Anesthesiologists physical status I or II patients scheduled to undergo general anesthesia for ORL interventions under remifentanil, in combination with sevoflurane (balanced technique) or propofol (total intravenous anesthesia)...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27856137/therapeutic-hypothermia-and-inhalation-anesthesia-in-a-patient-with-severe-pneumococcal-meningitis-and-secondary-cardiac-arrest
#19
Nejc Bukovnik, Andrej Markota, Tomaž Velnar, Janez Rebol, Andreja Sinkovič
Therapeutic hypothermia was associated with increased mortality in patients with severe bacterial meningitis in a large randomized trial. It still remains a treatment strategy for comatose survivors of cardiac arrest. There are several potential advantages of inhalational anesthetics as long-term sedation agents compared to intravenous sedation, however, uncontrollable increases of intracranial pressure were observed in neurocritical patients. Here we present a patient with severe bacterial meningitis and secondary cardiac arrest where therapeutic hypothermia and inhalational anesthesia were successfully used...
April 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/27849437/optimum-temperature-of-oxygen-for-transpulmonary-hypothermia-with-cooled-oxygen-inhalation-a-preliminary-study-in-a-rat-model
#20
Banu Karakus Yilmaz, Hatice Topcu, Yahya A Acar, Duygu Sultan Oran, Sule Ozsoy, Erdem Çevik, Aylin Hakligor, Orhan Çinar
Cooled oxygen inhalation was hypothesized as a novel hypothermia technique in a previous study. In the current study, we aimed to determine the optimal temperature of oxygen for this method. This is a prospective, randomized, controlled, examiner-blinded experimental study conducted with 45 healthy, adult, Wistar Hannover male rats. Rats were randomly divided into five groups; group 1: +4°C intubated group (n = 7), group 2: +4°C nonintubated group (n = 9), group 3: +8°C intubated group (n = 9), group 4: +8°C nonintubated group (n = 9), and group 5: control group (n = 9)...
November 16, 2016: Therapeutic Hypothermia and Temperature Management
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