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https://www.readbyqxmd.com/read/29352445/effect-of-sevoflurane-anesthesia-on-brain-is-mediated-by-lncrna-hotair
#1
Jian-Yue Wang, Yong Feng, Yan-Hong Fu, Guang-Li Liu
Postoperative cognitive dysfunction in elderly patients has been related to neurodegenerative disorders and mortality. Sevoflurane anesthesia has been implicated in both postoperative cognitive dysfunction and neurotoxicity. Given the advantages of using inhaled anesthetics like sevoflurane, it is important to understand how their usage results in neurotoxicity and subsequently devise ways to circumvent or attenuate the anesthetic-mediated induction in neurotoxicity. Long noncoding RNAs (LncRNAs) are a group of > 200 bp long RNAs and show specific spatiotemporal expression profiles...
January 19, 2018: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/29344658/microrna-188-3p-is-involved-in-sevoflurane-anesthesia-induced-neuroapoptosis-by-targeting-mdm2
#2
Lei Wang, Mengliang Zheng, Shuishui Wu, Zhiqiang Niu
Sevoflurane is a commonly used inhalation anesthetic. Sevoflurane-induced neuroapoptosis and cognitive impairments in animals are widely reported, however, the underlying molecular mechanisms remain largely unknown. The results of the present study demonstrated that sevoflurane anesthesia induced spatial memory impairments in rats, as determined by the Morris water maze test. Mechanistically, the current study demonstrated that sevoflurane administration significantly enhanced the expression of microRNA (miR)‑188‑3p...
January 16, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29343232/intravenous-dexmedetomidine-pre-medication-reduces-the-required-minimum-alveolar-concentration-of-sevoflurane-for-smooth-tracheal-extubation-in-anesthetized-children-a-randomized-clinical-trial
#3
Meiqin Di, Zhuqing Yang, Dansi Qi, Hongyan Lai, Junzheng Wu, Huacheng Liu, Xuefei Ye, Wangning ShangGuan, Qingquan Lian, Jun Li
BACKGROUND: It has been known that Dexmedetomidine pre-medication enhances the effects of volatile anesthetics, reduces the need of sevoflurane, and facilitates smooth extubation in anesthetized children. This present study was designed to determine the effects of different doses of intravenous dexmedetomidine pre-medication on minimum alveolar concentration of sevoflurane for smooth tracheal extubation (MACEX) in anesthetized children. METHODS: A total of seventy-five pediatric patients, aged 3-7 years, ASA physical status I and II, and undergoing tonsillectomy were randomized to receive intravenous saline (Group D0), dexmedetomidine 1 μg∙kg-1 (Group D1), or dexmedetomidine 2 μg∙kg-1 (Group D2) approximately 10 min before anesthesia start...
January 17, 2018: BMC Anesthesiology
https://www.readbyqxmd.com/read/29341401/the-prediction-probabilities-for-emergence-from-sevoflurane-anesthesia-in-children-a-comparison-of-the-perfusion-index-and-the-bispectral-index
#4
Pei-Pei Liu, Chi Wu, Jun-Zheng Wu, Ma-Zhong Zhang, Ji-Jian Zheng, Yang Shen, Pan He, Ying Sun
BACKGROUND: Predicting recovery of consciousness is one of the most essential functions of anesthesia depth monitors in anesthesia practice. Perfusion index and bispectral index are 2 indicators of the anesthesia depth monitoring with different working principles. The progression of the anesthesia emergence stages reflected by those monitors has not been well understood, especially in pediatric patients. The goals of this study were to compare the prediction probabilities of perfusion index and bispectral index in predicting awakening and in differentiating the different levels of arousal during emergence after sevoflurane anesthesia in children undergoing open inguinal hernia repairs...
January 17, 2018: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29338821/factors-influencing-regional-cerebral-oxygen-saturation-during-one-lung-ventilation-in-thoracic-surgery
#5
Ya Hong Gong, Wei Jia Wang, Wei Wei, Yu Guang Huang
Objective To identify factors influencing regional cerebral oxygen saturation (rScO2) during one-lung ventilation (OLV) in thoracic surgery. Methods Totally 33 patients with an ASA physical status of 1-3 scheduled for elective thoracic surgery with one-lung ventilation under general anesthesia were recruited. After anesthesia was induced with propofol,fentanyl/sufentanil,and rocuronium. All patients received balanced anesthesia using sevoflurane. During OLV,volume-controlled ventilation was used with a tidal volume of 6-7 ml/kg and an inspiration:expiration ratio of 1:1...
December 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
https://www.readbyqxmd.com/read/29336388/assessment-the-effect-of-dexmedetomidine-on-incidence-of-paradoxical-hypertension-after-surgical-repair-of-aortic-coarctation-in-pediatric-patients
#6
Rabie Soliman, Dalia Saad
OBJECTIVE: The aim of the study was to assess the effect of dexmedetomidine on the incidence of paradoxical hypertension in patients undergoing aortic coarctation repair. DESIGN: Randomized observational study. SETTING: University hospital and cardiac center. PATIENTS: The study included 108 pediatric patients with isolated aortic coarctation. METHODS: The patients were classified into two groups (each = 54): Group D: the patients received dexmedetomidine as a loading dose of 0...
January 2018: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/29332488/role-of-the-hippocampal-5-ht1a-receptor-mediated-camp-pka-signalling-pathway-in-sevoflurane-induced-cognitivedysfunction-in-aged-rats
#7
Yi Qiu, Ying Wang, Xiaodong Wang, Caixia Wang, Zhong-Yuan Xia
Objective This study aimed to evaluate the role of the hippocampal 5-hydroxytryptamine-1A (5-HT1A)-mediated cyclic adenosine monophosphate/protein kinase A (cAMP/PKA) signalling pathway in sevoflurane-induced cognitive dysfunction in aged rats. Methods Sixty 18-month-old Sprague-Dawley rats were divided into the control (n = 30) and experimental (Sev, n = 30) groups. The experimental group inhaled 50% air/oxygen mixture (2 L/min) and 2% sevoflurane for 4 hours. The control group inhaled 50% air/oxygen mixture (2 L/min) for 4 hours...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29331922/minimum-alveolar-concentration-key-concepts-and-a-review-of-its-pharmacological-reduction-in-dogs-part-1
#8
REVIEW
Rachel Reed, Thomas Doherty
OBJECTIVE: To outline the major components of the minimum alveolar concentration (MAC) and review the literature in regard to pharmacological manipulation of the MAC of halothane, isoflurane, sevoflurane, enflurane, and desflurane in dogs. The pharmacologic agents included are alpha-2 agonists, benzodiazepines, propofol, maropitant, opioids, lidocaine, acepromazine, non-steroidal anti-inflammatory agents, and NMDA antagonists. Part 1 will focus on summarizing the relevance, measurement, and mechanisms of MAC and review the effects of alpha-2 agonists, benzodiazepines, and propofol on MAC...
January 9, 2018: Research in Veterinary Science
https://www.readbyqxmd.com/read/29316032/optimum-time-for-intravenous-cannulation-after-induction-with-sevoflurane-oxygen-and-nitrous-oxide-in-children-without-any-premedication
#9
Abm Kamrul Hasan, Raman Sivasankar, Salil G Nair, Wamia U Hasan, Zulaidi Latif
BACKGROUND: Intravenous cannulation is usually done in children after inhalational induction with volatile anesthetic agents. The optimum time for safe intravenous cannulation after induction with sevoflurane, oxygen, and nitrous oxide has been studied in premedicated children, but there is no information for the optimum time for cannulation with inhalational induction in children without premedication. AIMS: The aim of this study was to determine the optimum time for intravenous cannulation after the induction of anesthesia with sevoflurane, oxygen, and nitrous oxide in children without any premedication...
February 2018: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29316010/volatile-anesthesia-for-a-pediatric-patient-with-very-long-chain-acyl-coenzyme-a-dehydrogenase-deficiency-a-case-report
#10
Aaron S Hess, Gregory M Rice, John D Jochman, Bridget L Muldowney
We report the case of a 3-year-old boy with very long-chain acyl-coenzyme A dehydrogenase deficiency presenting for adenotonsillectomy who was successfully and safely managed with a balanced anesthetic including sevoflurane. The anesthetic management is described, and the controversy surrounding volatile anesthetics in these patients is discussed.
January 9, 2018: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29316004/comparison-of-intubation-conditions-with-cmac-miller-videolaryngoscope-and-conventional-miller-laryngoscope-in-lateral-position-in-infants-a-prospective-randomized-trial
#11
Divya Jain, Swati Mehta, Komal Gandhi, Suman Arora, Badal Parikh, Muneer Abas
BACKGROUND: Endotracheal intubation in lateral position in infants is a challenge. This difficulty may be surmounted to some extent by using videolaryngoscopes but the routine use of these devices as a tool to secure the airway in lateral position remains unevaluated. Therefore, we conducted a prospective, randomized controlled trial to compare the intubation conditions achieved with the CMAC videolaryngoscope and the Miller Laryngoscope in lateral position in infants. We hypothesized that CMAC videolaryngoscope would provide a better laryngoscopic view and reduce the time to intubation compared to the Miller blade...
January 9, 2018: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/29315308/mac-sparing-effect-of-nitrous-oxide-in-sevoflurane-anesthetized-sheep-and-its-reversal-with-systemic-atipamezole-administration
#12
Lauren Duffee, Nicolò Columbano, Antonio Scanu, Valentino Melosu, Giovanni Mario Careddu, Giovanni Sotgiu, Bernd Driessen
INTRODUCTION: Nitrous oxide (N2O) is an anesthetic gas with antinociceptive properties and reduces the minimum alveolar concentration (MAC) for volatile anesthetic agents, potentially through mechanisms involving central alpha2-adrenoceptors. We hypothesized that 70% N2O in the inspired gas will significantly reduce the MAC of sevoflurane (MACSEVO) in sheep, and that this effect can be reversed by systemic atipamezole. MATERIALS AND METHODS: Animals were initially anesthetized with SEVO in oxygen (O2) and exposed to an electrical current as supramaximal noxious stimulus in order to determine MACSEVO (in duplicates)...
2018: PloS One
https://www.readbyqxmd.com/read/29310813/effect-of-sevoflurane-on-the-atpase-activity-of-hippocampal-neurons-in-a-rat-model-of-cerebral-ischemia-reperfusion-injury-via-the-camp-pka-signaling-pathway
#13
Tie-Jun Liu, Jin-Cun Zhang, Xiao-Zeng Gao, Zhi-Bin Tan, Jian-Jun Wang, Pan-Pan Zhang, Ai-Bin Cheng, Shu-Bo Zhang
We aim to investigate the effects of sevoflurane on the ATPase activity of the hippocampal neurons in rats with cerebral ischemia-reperfusion injury (IRI) via the cyclic adenosine monophosphate (cAMP) and protein kinase A (PKA) signaling pathway. Sixty rats were assigned into the normal, model and sevoflurane groups (n = 20, the latter two groups were established as focal cerebral IRI models). The ATPase activity was detected using an ultramicro Na (+)-K (+)-ATP enzyme kit. Immunohistochemical staining was used to detect the positive protein expression of cAMP and PKA...
January 2018: Kaohsiung Journal of Medical Sciences
https://www.readbyqxmd.com/read/29304735/effect-of-single-dose-dexmedetomidine-on-postoperative-recovery-after-ambulatory-ureteroscopy-and-ureteric-stenting-a-double-blind-randomized-controlled-study
#14
I I Shariffuddin, W H Teoh, S Wahab, C Y Wang
BACKGROUND: Ambulatory surgery has recently gain popularity, as it is a good method of optimizinghospital resources utilization. To support ambulatory surgery, anaesthetic goals nowrevolve around patients' early recovery with minimal pain and nausea, expedientdischarge home and prompt resumption of activities of daily living. In this study, weevaluated the effect of a single pre-induction dose of dexmedetomidine on anaestheticrequirements, postoperative pain and clinical recovery after ambulatory ureteroscopy andureteric stenting under general anaesthesia...
January 5, 2018: BMC Anesthesiology
https://www.readbyqxmd.com/read/29303789/sevoflurane-blocks-the-induction-of-long-term-potentiation-when-present-during-but-not-when-present-only-before-the-high-frequency-stimulation
#15
Jinyang Liu, Lie Yang, Daisy Lin, James E Cottrell, Ira S Kass
BACKGROUND: This study tests the hypothesis that sevoflurane blocks long-term potentiation only if it is present during the high-frequency stimulation that induces long-term potentiation. METHODS: Long-term potentiation, an electrophysiologic correlate of memory, was induced by high-frequency stimulation and measured as a persistent increase in the field excitatory postsynaptic potential slope in the CA1 region. RESULTS: Long-term potentiation was induced in the no sevoflurane group (171 ± 58% vs...
January 5, 2018: Anesthesiology
https://www.readbyqxmd.com/read/29302897/efficient-application-of-volatile-anaesthetics-total-rebreathing-or-specific-reflection
#16
REVIEW
Hagen Bomberg, Thomas Volk, Heinrich V Groesdonk, Andreas Meiser
The circle system has been in use for more than a 100 years, whereas the first clinical application of an anaesthetic reflector was reported just 15 years ago. Its functional basis relies on molecular sieves such as zeolite crystals or activated carbon. In a circle system, the breathing gas is rebreathed after carbon dioxide absorption; a reflector on the other hand specifically retains the anaesthetic during expiration and resupplies it during the next inspiration. Reflection systems can be used in conjunction with intensive care ventilators and do not need the permanent presence of trained qualified staff...
January 4, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29297803/sevoflurane-anesthesia-in-livingstone-s-fruit-bats-pteropus-livingstonii
#17
Alberto Rodriguez Barbon, Gale Glendewar, Aimee L Drane, Robert Shave, Andrew Routh
Fourteen captive Livingstone's fruit bats ( Pteropus livingstonii) were anesthetized for routine veterinary health checks, including echocardiography, using sevoflurane. In addition, three specimens suffering from cardiac disease and a pregnant specimen were anesthetized for clinical assessment. No anesthetic complications were observed in any of the specimens. Significant differences in the core body temperature were found between the esophageal and rectal measurements. A significant decrease in blood glucose was noted through the anesthesia, suspected to be related to an extended fasting period prior to the procedure...
December 2017: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/29287876/effect-of-preoperative-visiting-operation-room-on-emergence-agitation-in-preschool-children-under-sevoflurane-anesthesia
#18
Qiaosheng Zhong, Xianfeng Qu, Chuanhua Xu
BACKGROUND: Emergence agitation (EA) is a common complication in children during recovery from sevoflurane anesthesia with an high incidence. The main objective of this study was to compare the effects of preoperative visiting operation room (PVOR) to administration of propofol at the end of anesthesia on EA in preschool children under sevoflurane anesthesia. METHODS: Sixty-nine preschool children aged from 3 to 6 years scheduled for tonsillectomy under sevoflurane anesthesia were randomly allocated to one of the three groups to receive either PVOR (Group PV), routine preoperative visit (Group RV) or routine preoperative visit plus propofol (Group RP), 23 patients were included in each group...
January 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29287193/autophagy-induction-by-hispidulin-provides-protection-against-sevoflurane-induced-neuronal-apoptosis-in-aged-rats
#19
Lubin Huang, Kejing Huang, Hong Ning
AIM: Sevoflurane is a general anesthetic, which has been found to cause cognitive and memory deficit in elderly. This study is designed to explore the neuroprotective effect of hispidulin, a natural flavone compound, against sevoflurane-induced cognitive dysfunction in aged rats. MATERIALS AND METHODS: Human neuroglioma cell line H4 was used as cellular model in our study. The apoptosis of H4 cells was determined by DNA fragmentation and flow cytometry. The autophagy of H4 cells was determined by observing GFP-LC3 II puncta and flow cytometry...
December 26, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29284842/randomized-comparison-of-isoflurane-versus-sevoflurane-and-desflurane-for-maintenance-of-ambulatory-anesthesia
#20
Pranjali Kurhekar, Krishnagopal Vinod, J Shesha Dhiviya Krishna, M Sethuraman Raghuraman
Background: Ambulatory surgeries demand safe anesthesia with faster recovery which makes it expensive due to the cost of inhalational anesthetic agents such as sevoflurane and desflurane. Isoflurane is inexpensive agent but can cause delayed recovery. The aim of this study was to evaluate cost-benefit ratio of all three agent with respect to recovery and safety profile. Materials and Methods: Patients posted for elective ambulatory surgeries were divided into three groups...
October 2017: Anesthesia, Essays and Researches
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