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Propofol monitoring

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https://www.readbyqxmd.com/read/29671874/pain-assessment-by-pupil-dilation-reflex-in-response-to-noxious-stimulation-in-anaesthetized-adults
#1
D Wildemeersch, N Peeters, V Saldien, M Vercauteren, G Hans
BACKGROUND: In response to noxious stimulation, pupillary dilation reflex (PDR) occurs even in anaesthetized patients. The aim of the study was to evaluate the ability of pupillometry with an automated increasing stimulus intensity to monitor intraoperative opioid administration. METHODS: Thirty-four patients undergoing elective surgery were enrolled. Induction by propofol anaesthesia was increased progressively until the sedation depth criteria (SeD) were attained...
April 19, 2018: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29662089/time-rescaling-reproduces-eeg-behavior-during-transition-from-propofol-anesthesia-induced-unconsciousness-to-consciousness
#2
S Boussen, A Spiegler, C Benar, M Carrère, F Bartolomei, P Metellus, R Voituriez, L Velly, N Bruder, A Trébuchon
General anesthesia (GA) is a reversible manipulation of consciousness whose mechanism is mysterious at the level of neural networks leaving space for several competing hypotheses. We recorded electrocorticography (ECoG) signals in patients who underwent intracranial monitoring during awake surgery for the treatment of cerebral tumors in functional areas of the brain. Therefore, we recorded the transition from unconsciousness to consciousness directly on the brain surface. Using frequency resolved interferometry; we studied the intermediate ECoG frequencies (4-40 Hz)...
April 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29661242/use-applicability-and-reliability-of-depth-of-hypnosis-monitors-in-children-a-survey-among-members-of-the-european-society-for-paediatric-anaesthesiology
#3
Yuen Man Cheung, Gail Scoones, Robert Jan Stolker, Frank Weber
BACKGROUND: To assess the thoughts of practicing anaesthesiologists about the use of depth of hypnosis monitors in children. METHODS: Members of the European Society for Paediatric Anaesthesiology were invited to participate in an online survey about their thoughts regarding the use, applicability and reliability of hypnosis monitoring in children. RESULTS: The survey achieved a response rate of 30% (N = 168). A total of 138 completed surveys were included for further analysis...
April 16, 2018: BMC Anesthesiology
https://www.readbyqxmd.com/read/29655977/dexmedetomidine-or-fentanyl-cardiovascular-stability-and-analgesia-during-propofol-ketamine-total-intravenous-anaesthesia-in-experimental-pigs
#4
Andreas Lervik, Joanna Raszplewicz, Birgit Ranheim, Susanna Solbak, Simen F Toverud, Henning A Haga
OBJECTIVE: To compare cardiovascular function and response to nociception during total intravenous anaesthesia in pigs with propofol, ketamine and either dexmedetomidine or fentanyl administered as a continuous infusion. STUDY DESIGN: Blinded, randomized, balanced, crossover study ANIMALS: Eight immunocastrated male, mixed breed pigs with a mean ± standard deviation body weight of 26.4 ± 1.9 kg for dexmedetomidine and 27.5 ± 3.8 kg for fentanyl treatment...
December 5, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/29628562/comparative-study-between-propofol-and-dexmedetomidine-for-conscious-sedation-in-patients-undergoing-outpatient-colonoscopy
#5
Harish Karanth, Sumesh Murali, Reshma Koteshwar, Vasanth Shetty, Karunakara Adappa
Introduction: Colonoscopy is a mildly painful procedure requiring conscious sedation. Though propofol is a widely used anesthetic agent in day-care procedures due to its rapid onset and quick recovery has a drawback of requiring resuscitation maneuvers more often than the conventional methods. Dexmedetomidine, a newly introduced, highly selective α2 -adrenergic receptor agonist possessing hypnotic, sedative, anxiolytic, sympatholytic, and analgesic properties with impressive safety margin, needs to be explored for use in conscious sedation for colonoscopy procedure among South Indian population...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29626346/propofol-for-implantable-cardioverter-defibrillator-implantation-in-patients-with-brugada-syndrome
#6
Hye-Mee Kw On, Sung-Hoon Kim, Se-Ung Pa Rk, Jin-Ho Rh Im, Hee-Su N Park, Wook-Jong Kim, Gi-Byou Ng Nam
AIMS: Avoiding propofol in patients with Brugada syndrome has been suggested because of the theoretical risk of provoking ventricular arrhythmias, although propofol may be selected for conscious sedation during electrophysiological procedures in catheterization laboratories. This study aimed to document peri-procedural electrocardiographic changes and adverse events in patients with Brugada syndrome undergoing implantable cardioverter defibrillator (ICD) implantation using propofol sedation...
April 6, 2018: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/29624011/comparison-of-the-cardiovascular-and-respiratory-effects-and-sevoflurane-requirement-in-dogs-premedicated-with-two-doses-of-medetomidine-and-butorphanol-undergoing-surgical-sterilization
#7
D Juodzente, A Macas, B Karveliene, S Petkevicius, V Riskeviciene
The aim of this study was to compare the cardiovascular and respiratory effects and sevoflurane requirement in dogs premedicated with two doses of medetomidine and butorphanol undergoing surgical sterilization. The dogs were randomly assigned to two different groups: group 1 received a lower dose of medetomidine (0.014 mg/kg) and butorphanol (0.14 mg/kg) and group 2 received a higher dose of medetomidine (0.024 mg/kg) and butorphanol (0.24 mg/kg). Anesthesia was induced with intravenous propofol and maintained with sevoflurane 2% in pure oxygen...
March 2018: Polish Journal of Veterinary Sciences
https://www.readbyqxmd.com/read/29611112/sedation-practices-in-gastrointestinal-endoscopy-a-survey-from-southern-india
#8
Prakash Zacharias, Shibi Mathew, John Mathews, Aby Somu, Maya Peethambaran, Menon Prashanth, Mathew Philip
Gastrointestinal endoscopies can cause an unpleasant experience for the patient. In India, most endoscopists follow a common institutional policy for sedation. The aim of this study was to analyze the sedation practices in various endoscopy centers across southern India. Data were collected with the help of a structured questionnaire given to a senior endoscopist of the center. Data from the completed questionnaire were later analyzed. Data were obtained from 19 centers across southern India. All endoscopy suites had central oxygen supply and emergency cart...
April 3, 2018: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/29610953/judicial-precedent-based-clinical-practice-guidelines-of-propofol-in-sedative-esthetic-surgery
#9
Duk Hee Lee, Joo Hyun Woo, Seung Eun Hong
BACKGROUND: Propofol is has been widely used for sedation in the field of esthetic surgery because of its favorable pharmacokinetic profile. Propofol sedation-induced side effects are rare. However, when present, they can be serious. The number of malpractice claims associated with propofol sedation has increased in recent years. This study aims to show which procedures lead to the most claims in the field of esthetic surgery through a review of Korean precedents. METHODS: Thirteen precedent cases of propofol sedation in the field of esthetic surgery were collected between 2000 and 2016...
April 2, 2018: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/29606730/effect-of-different-analgesic-techniques-on-hemodynamic-variables-recorded-with-an-esophageal-doppler-monitor-during-ovariohysterectomy-in-dogs
#10
Ignacio Sández, María Soto, Daniel Torralbo, Eva Rioja
This study compared the efficacy of intravenous (IV) fentanyl and ketamine with lumbosacral epidural lidocaine in dogs undergoing ovariohysterectomy. Dogs with esophageal Doppler monitoring ( n = 112) were included in this retrospective study. All dogs were premedicated with dexmedetomidine and methadone, induced with IV propofol or alfaxalone and maintained using isoflurane and IV fentanyl, IV ketamine, or epidural lidocaine. Heart rate (HR), mean arterial pressure (MAP), expired fraction of isoflurane (ETIso), stroke distance (SD), minute distance (MD), peak velocity (PV) and mean acceleration (MA) were recorded before and after ligation of the ovarian pedicle (OvP)...
April 2018: Canadian Veterinary Journal. la Revue Vétérinaire Canadienne
https://www.readbyqxmd.com/read/29605483/severe-opioid-withdrawal-precipitated-by-vivitrol%C3%A2
#11
R S Wightman, L S Nelson, J D Lee, L M Fox, S W Smith
The risk of severe precipitated opioid withdrawal (POW) is amplified when precipitated by a long-acting opioid antagonist. IM extended release naltrexone (XRNTX;Vivitrol®) is an FDA approved therapy to prevent relapse of opioid and alcohol abuse. Two cases of precipitated opioid withdrawal from XRNTX are presented that illustrate different patient reactions to POW. A 56-year-old woman developed a hypertensive emergency and required continuous intravenous vasodilator, clonidine, and intensive care monitoring after re-initiation of XRNTX following opioid relapse...
March 21, 2018: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29587188/nonconvulsive-status-epilepticus-after-cessation-of-convulsive-status-epilepticus-in-pediatric-intensive-care-unit-patients
#12
Jin Chen, Lingling Xie, Yue Hu, Xinghui Lan, Li Jiang
Little is known about pediatric patients suffering from nonconvulsive status epilepticus (NCSE) after convulsive status epilepticus (CSE) cessation. The aim of this study was to identify in pediatric patients the clinical characteristics of NCSE after CSE cessation and the factors that contribute to patient outcomes. Data from clinical features, electroencephalography (EEG) characteristics, neuroimaging findings, treatments, and prognosis were systematically summarized, and the associations between clinical characteristics and prognosis were quantified...
March 24, 2018: Epilepsy & Behavior: E&B
https://www.readbyqxmd.com/read/29579636/determination-of-dexmedetomidine-by-uhplc-ms-ms-and-its-application-to-evaluate-the-effect-of-dexmedetomidine-concentration-on-the-target-controlled-infusion-concentration-of-propofol
#13
Zhuoling Zheng, Shuyu Zhang, Wudi Ma, Lingyi Zhang, Ling Huang, Wenqi Huang, Min Huang, Zhongxing Wang, Jiali Li
The combination of dexmedetomidine (DEX) and propofol (PPF) is extensively used in the field of anaesthesiology. This study aimed to develop and validate a rapid, simple and sensitive ultra high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for the determination of DEX in human plasma. The method was applied to evaluate the effect of DEX concentration on the target-controlled infusion (TCI) concentration of PPF. Analytes were separated on a Waters XTERRA® MS C18 column with a mobile phase of acetonitrile-methanol-water containing 0...
May 30, 2018: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/29579581/midazolam-addition-to-analgosedation-for-pulmonary-vein-isolation-may-increase-risk-of-hypercapnia-and-acidosis
#14
Bernhard M Kaess, Florian Feurich, Gerd Bürkle, Joachim R Ehrlich
BACKGROUND: Pulmonary vein isolation (PVI) is generally performed under analgosedation, but sedation protocols vary and no optimal protocol has been defined. We investigated procedural, respiratory and hemodynamic parameters in patients undergoing PVI using analgosedation either with or without midazolam. METHODS: In a prospective observational study, we compared n = 43 consecutive patients (54% male, mean age 62 years) undergoing PVI using analgosedation either with or without midazolam added to propofol and fentanyl...
May 15, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29578350/severe-cardiorespiratory-complications-derived-from-propofol-sedation-monitored-by-an-endoscopist
#15
Sergio Maestro Antolín, Bruno Antonio Moreira Da Silva, Fernando Santos Santamarta, Arantza Germade, Laura Pérez Citores, Ana Santamaría, Rocío Bonoso Criado, Rosa Eva Madrigal, Esther Saracibar, Javier Barcenilla Laguna, Francisco Igea Arisqueta, Antonio Germán Pérez-Millán
INTRODUCTION: deep sedation with propofol monitored by an endoscopist in different endoscopy units is a controversial subject and the source of conflicts of interest between the various scientific societies of Anesthesiology and Gastroenterology. Many studies have already demonstrated the efficacy, efficiency and low incidence of complications associated with sedation when under the control of a trained endoscopist vs an anesthesiologist. MATERIAL AND METHODS: the rate of severe cardiorespiratory complications during various endoscopic examinations (gastroscopy, colonoscopy, endoscopic retrograde cholangiopancreatography [ERCP] and endoscopic ultrasound [EUS]) where sedation was controlled by an endoscopist within our unit, from 2011 to 2016, was reviewed...
April 2018: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/29570974/online-monitoring-of-intraoperative-exhaled-propofol-by-acetone-assisted-negative-photoionization-ion-mobility-spectrometry-coupled-with-time-resolved-purge-introduction
#16
Dandan Jiang, Enyou Li, Qinghua Zhou, Xin Wang, Hanwei Li, Bangyu Ju, Lei Guo, Desheng Liu, Haiyang Li
Online monitoring of exhaled propofol concentration is important for anesthetists to provide adequate anesthesia as propofol concentrations in plasma and breath are correlated reasonably well. Exhaled propofol could be detected by 63Ni ion mobility spectrometry in negative ion mode, however, the radioactivity of 63Ni source restricts its clinical application due to safety, environmental, and regulatory concerns. An acetone-assisted negative photoionization ion mobility spectrometer (AANP-IMS) using a side-mounted vacuum ultraviolet (VUV) lamp in the unidirectional (UD) flow mode was developed for sensitively measurement of exhaled propofol by producing high percentage of O2-(H2O)n...
March 23, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29543212/-effectiveness-of-intraoperative-monitoring-of-motor-evoked-potentials-for-predicting-changes-in-the-neurological-status-of-patients-with-cervical-spinal-cord-tumors-in-the-early-postoperative-period
#17
V S Klimov, V V Kel'makov, N V Chishchina, A V Evsyukov
AIM: The study aim was to evaluate the effectiveness of intraoperative monitoring of motor evoked potentials (MEPs) for predicting changes in the neurological status of patients with cervical spinal cord tumors in the early postoperative period. MATERIAL AND METHODS: The study included 74 patients with intradural cervical spinal cord tumors who were operated on using motor evoked potential monitoring in the period from 2013 to 2016. There were 29 (39%) males and 46 (61%) females...
2018: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/29536783/effects-of-remifentanil-and-dexmedetomidine-on-the-mother-s-awareness-and-neonatal-apgar-scores-in-caesarean-section-under-general-anaesthesia
#18
Kenan Kart, Ayse Hanci
Objective This study aimed to compare the effects of remifentanil and dexmedetomidine on awareness during the induction of general anaesthesia. Material and Methods Ninety patients scheduled for elective caesarean section under general anaesthesia were included and randomly divided into three anaesthesia groups: 2 mg/kg propofol (control group); 2 mg/kg propofol and 1 µg/kg dexmedetomidine (dexmedetomidine group); and 2 mg/kg propofol and 1 µg/kg remifentanil (remifentanil group). All patients received routine monitoring, and Apgar scores at 1 and 5 minutes were recorded...
January 1, 2018: Journal of International Medical Research
https://www.readbyqxmd.com/read/29534398/-the-application-of-cortical-and-subcortical-stimulation-threshold-in-identifying-the-motor-pathway-and-guiding-the-resection-of-gliomas-in-the-functional-areas
#19
X H Ren, X C Yang, W Huang, K Y Yang, L Liu, H Qiao, L J Guo, Y Cui, S Lin
Objective: This study aimed to analyze the application of cortical and subcortical stimulation threshold in identifying the motor pathway and guiding the resection of gliomas in the functional area, and to illustrate the minimal safe threshold by ROC method. Methods: Fifty-seven patients with gliomas in the functional areas were enrolled in the study at Beijing Tiantan Hospital from 2015 to 2017. Anesthesia was maintained intravenously with propofol 10% and remifentanil. Throughout the resection process, cortical or subcortical stimulation threshold was determined along tumor border using monopolar or bipolar electrodes...
March 6, 2018: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29520678/intraoperative-feasibility-of-bulbocavernosus-reflex-monitoring-during-untethering-surgery-in-infants-and-children
#20
Takeaki Shinjo, Hironobu Hayashi, Tsunenori Takatani, Eishu Boku, Hiroyuki Nakase, Masahiko Kawaguchi
Bulbocavernosus reflex (BCR) monitoring is used to assess the integrity of urinary and bowel function. In this study, we evaluated the feasibility of BCR monitoring during untethering surgery in infants and children to predict postoperative urinary and bowel dysfunction. The records of 22 patients ranging from 4 days to 10 years old (mean 2.7 ± 3.3 years) were reviewed. Anesthesia was maintained by propofol or sevoflurane/opioid without neuromuscular blockade. BCR waveforms induced by electrical stimulation (20-40 mA, train-of-four pulses with 500 Hz) to the penis or clitoris were recorded from bilateral external anal sphincters...
March 8, 2018: Journal of Clinical Monitoring and Computing
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