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Propofol monitoring

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https://www.readbyqxmd.com/read/28622355/anesthetic-action-on-the-transmission-delay-between-cortex-and-thalamus-explains-the-beta-buzz-observed-under-propofol-anesthesia
#1
Meysam Hashemi, Axel Hutt, Darren Hight, Jamie Sleigh
In recent years, more and more surgeries under general anesthesia have been performed with the assistance of electroencephalogram (EEG) monitors. An increase in anesthetic concentration leads to characteristic changes in the power spectra of the EEG. Although tracking the anesthetic-induced changes in EEG rhythms can be employed to estimate the depth of anesthesia, their precise underlying mechanisms are still unknown. A prominent feature in the EEG of some patients is the emergence of a strong power peak in the β-frequency band, which moves to the α-frequency band while increasing the anesthetic concentration...
2017: PloS One
https://www.readbyqxmd.com/read/28621182/-non-intubated-uniportal-video-assisted-thoracic-surgery-vats-lobectomy-as-a-new-procedure-in-our-department
#2
József Furák, Zsolt Szabó, Theodor Horváth, Tibor Géczi, Balázs Pécsy, Tibor Németh, Aurél Ottlakán, Zsolt Molnár, György Lázár
AIM: Due to the emerging experience in VATS (video assisted thoracic surgery) lobectomies, in some centers the so called "non-intubated" VATS lobectomies (NITS - non-intubated thoracic surgery) gained increased authority, during which endotracheal intubation and muscle relaxation of the patient is not carried out, thus surgery is being performed with the patient breathing spontaneously. The recent study deals with our initial experience gained during uniportal NITS VATS lobectomies. PATIENTS AND METHOD: Between 24...
June 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28589067/intraoperative-dexmedetomidine-induced-polyuric-syndrome
#3
Shannon Granger, David Ninan
A 23-year-old male trauma patient with a cervical spine fracture underwent an anterior and posterior discectomy and spinal fusion surgery. The patient presented to the operating room with a stabilizing halo fixation device in place, and a fiberoptic intubation was performed with dexmedetomidine for sedation. During the surgical procedure, general anesthesia was maintained with a propofol and remifentanil infusion as the patient was monitored using somatosensory and motor evoked potentials. The patient's urine output increased gradually during the nine-hour surgical procedure from 150 mL/hour to over 700 mL/hour in the eighth hour of the procedure, where it remained until the end of the procedure...
May 3, 2017: Curēus
https://www.readbyqxmd.com/read/28586054/propofol-reduces-hypoxia%C3%A2-induced-autophagic-cell-death-through-downregulating-hif-1%C3%AE-in-alveolar-epithelial-type-ii-cells-of-rats
#4
Hui-Jie Ning, Hong-Bin Yuan, Hai-Tao Xu, Xing-Ying He
Propofol (2,6‑diisopropylphenol) exerts protective effects on alveolar epithelial type II (ATII) cells, partly through attenuating hypoxia‑induced apoptosis. Autophagy is involved in the activation of apoptosis. Therefore, the present study investigated the modulating effect of propofol against autophagy in ATII cells under hypoxia. Western blot analysis was performed to detect the protein expression of the autophagy molecular marker, microtubule‑associated protein 1 light chain 3 (LC3)‑II, under various conditions...
June 6, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28584353/lactate-pyruvate-monitoring-during-carotid-endarterectomy-under-general-anaesthesia-versus-cervical-plexus-block-a-randomised-controlled-study
#5
Gomaa Z Hussien, Ahmed M Elbadawy, Hossam A Elshamaa
BACKGROUND AND AIMS: Carotid endarterectomy (CEA) reduces the risk of stroke in patients with significant carotid stenosis and may be performed under general anaesthesia (GA) or regional anaesthesia (RA). This study aimed to compare RA and GA with regard the jugular venous bulb blood lactate and pyruvate levels. METHODS: This randomised-controlled trial was done between October-2013 and September-2015. Thirty-six patients were randomised into either GA or RA groups, with six excluded after randomisation...
May 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28582801/emergency-airway-management-in-australian-and-new-zealand-emergency-departments-a-multicentre-descriptive-study-of-3710-emergency-intubations
#6
Hatem Alkhouri, John Vassiliadis, Matthew Murray, John Mackenzie, Alex Tzannes, Sally McCarthy, Toby Fogg
OBJECTIVE: The aim of this study was to describe the practice of endotracheal intubation across a range of Australasian EDs. METHODS: We established a multicentre airway registry (The Australian and New Zealand Emergency Department Airway Registry [ANZEDAR]) prospectively capturing intubations from 43 Australian and New Zealand EDs over 24 months using the ANZEDAR form. Information recorded included patient demographics, intubation indications, predicted difficulty, rapid sequence induction and endotracheal intubation preparation technique, induction drugs, airway adjuncts and complications...
June 5, 2017: Emergency Medicine Australasia: EMA
https://www.readbyqxmd.com/read/28574372/monitoring-the-depth-of-anesthesia-using-a-new-adaptive-neuro-fuzzy-system
#7
Ahmad Shalbaf, Mohsen Saffar, Jamie W Sleigh, Reza Shalbaf
Accurate and noninvasive monitoring of the depth of anesthesia (DoA) is highly desirable. Since the anesthetic drugs act mainly on the central nervous system, the analysis of brain activity using electroencephalogram (EEG) is very useful. This paper proposes a novel automated method for assessing the DoA using EEG. Firstly, 11 features including spectral, fractal and entropy are extracted from EEG signal and then, by applying an algorithm according to exhaustive search of all subsets of features, a combination of the best features (Beta-index, sample entropy, shannon permutation entropy and detrended fluctuation analysis) is selected...
May 29, 2017: IEEE Journal of Biomedical and Health Informatics
https://www.readbyqxmd.com/read/28562388/procedural-sedation-in-the-icu-and-emergency-department
#8
Nikhil Chawla, Adjoa Boateng, Ranjit Deshpande
PURPOSE OF REVIEW: Procedures are increasingly being performed in the acute care setting, outside of the operating rooms (OR). This article aims to review the current literature on out-of-OR procedural sedation with a focus on the ICU and emergency department, highlighting the following topics: multidisciplinary team approach, choice of pharmacologic agent, sedation scales, current safety guidelines, anticipating complications, appropriate monitoring and necessary resources. RECENT FINDINGS: Subjective assessment of sedation using sedation scales is controversial...
May 27, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28553135/impact-of-different-analgesic-depths-and-abdominal-trauma-of-different-severities-on-stress-and-recovery-of-rats-undergoing-total-intravenous-anesthesia
#9
Hai-Ming Huang, Jun Cao, Lin-Mei Zhu, Yu-Qing Chen, Fu-Ding Lu, Hong-Wei Cai
A number of animal models have been developed to examine the pathophysiological consequences of surgical procedures, but anesthetic methods, monitoring, and management measures in these models are very different from those used in humans. This study was designed to create a rat model of abdominal surgery using anesthetic methods and perioperative treatment similar to those used in the clinic and to investigate the effects of different injury severities and depths of anesthesia and analgesia on surgical stress and postoperative recovery...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28551058/-anesthesia-recovery-comparison-between-remifentanil-propofol-and-remifentanil-desflurane-guided-by-bispectral-index-%C3%A2-monitoring
#10
Raphael Grossi Rocha, Eduardo Giarola Almeida, Lara Moreira Mendes Carneiro, Natália Farias de Almeida, Walkíria Wingester Vilas Boas, Renato Santiago Gomez
BACKGROUND AND OBJECTIVES: There is a strong demand for fast and predictable anesthesia recovery with few side effects. Choice of the hypnotic agent could impact on that. This study investigated the differences between recoveries after remifentanil-propofol and remifentanil-desflurane anesthesias guided by bispectral index (BIS(®)). METHODS: Forty patients were randomly assigned into 2 groups according to the anesthesia technique applied: remifentanil-propofol (REM-PRO) and remifentanil-desflurane (REM-DES)...
May 25, 2017: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/28545733/simultaneous-on-line-monitoring-of-propofol-and-sevoflurane-in-balanced-anesthesia-by-direct-resistive-heating-gas-chromatography
#11
Hao Dong, Feng Jiang Zhang, Fu Yuan Wang, Ying Ying Wang, Jing Guo, G M Kanhar, Jing Chen, Jun Liu, Chen Zhou, Min Yan, Xing Chen
In balanced anesthesia, sevoflurane and propofol are often used in combination to achieve a better anesthetic effect. However, methods for on-line monitoring of concentrations of the two anesthetics in patients are still rare in clinical. This study proposed a non-invasive method utilizing a fast gas chromatograph combined with a surface acoustic wave sensor (Fast GC-SAW) to simultaneously on-line monitor sevoflurane and propofol in patients' exhaled gas. By using the direct resistive heating capillary column, the single detection time of Fast GC-SAW system was significantly shortened to 90s, as well as the size reduced to (40cm×30cm×20cm)...
May 2, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/28514284/comparison-in-anesthetic-effects-of-propofol-among-patients-with-different-abo-blood-groups
#12
COMPARATIVE STUDY
Yiri Du, Haixia Shi, Jianshe Yu
Our study was aimed to investigate anesthetic effects of propofol in patients with different blood groups.A total of 72 participants were enrolled from patients arranged for surgeries of cholecystectomy, tonsillectomy, and spinal operation. Each blood group (A, B, AB, and O) contained 18 participants. Mean arterial pressure (MAP), heart rate (HR), and bispectral index (BIS) were assayed with Philips monitor. These indexes were observed before propofol anesthesia (T0), and then were recorded when concentration of propofol was 1 μg/mL (T1), 2 μg/mL (T2), 3 μg/mL (T3), and 4 μg/mL (T4)...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28509772/safety-of-deep-sedation-in-the-endoscopy-suite
#13
Megan L Allen
PURPOSE OF REVIEW: As the complexity of endoscopic procedures increases, the use of propofol and the desire for deep sedation are becoming more common in the endoscopy suite. This review explores sedation depth, agents used for sedation, recommended monitoring, and adverse event risks that occur during sedation for endoscopy. RECENT FINDINGS: The sedation provider for endoscopy varies by practice location and with regulatory requirements. As increasingly deep levels of sedation are used in this setting, the need for all providers to have training in the ability to rescue patients from sedation-related side effects is paramount...
May 15, 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28506550/cardioprotective-efficacy-of-sevoflurane-vs-propofol-during-induction-and-or-maintenance-in-patients-undergoing-coronary-artery-revascularization-surgery-without-pump-a-randomized-trial
#14
J L Guerrero Orriach, M Galán Ortega, A Ramirez Fernandez, M Ramirez Aliaga, M I Moreno Cortes, D Ariza Villanueva, A Florez Vela, J Alcaide Torres, C Santiago Fernandez, E Matute Gonzalez, E Alsina Marcos, J J Escalona Belmonte, M Rubio Navarro, L Garrido Sanchez, J Cruz Mañas
PURPOSE: Pre and post-operative administration of sevoflurane in myocardial revascularization surgery provides enhanced cardioprotective effects exerted by pharmacologic pre- and post-conditioning, as compared to propofol. The identification of the enzymes involved in conditioning mechanisms is crucial to the understanding of the effects of sevoflurane in cardiac surgery patients. The impact of sevoflurane on another crucial target organ-the kidney-was also assessed. METHODS: Ninety patients undergoing off-pump myocardial revascularization surgery were allocated to receive either intra- and postoperative sevoflurane (SS), intraoperative sevoflurane and postoperative propofol (SP), or intra- and postoperative propofol (PP))...
May 3, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28489614/validation-of-innovative-techniques-for-monitoring-nociception-during-general-anesthesia-a-clinical-study-using-tetanic-and-intracutaneous-electrical-stimulation
#15
Sandra Funcke, Sven Sauerlaender, Hans O Pinnschmidt, Bernd C Saugel, Kai Bremer, Daniel A Reuter, Rainer Nitzschke
BACKGROUND: This study compares the analgesic indices Analgesia Nociception Index (heart rate variability), Surgical Pleth Index (photoplethysmography), and pupillary dilatation, to heart rate, mean arterial pressure, and bispectral index, with regard to diagnostic accuracy and prediction probability for nociceptive response. The primary endpoint was the correlation between Δ values and the remifentanil dose administered. METHODS: We anesthetized 38 patients with propofol and increasing doses of remifentanil and applied standardized tetanic and intracutaneous electrical painful stimulations on each analgesic level...
May 10, 2017: Anesthesiology
https://www.readbyqxmd.com/read/28485777/influences-of-cisatracurium-besylate-and-vecuronium-bromide-on-muscle-relaxant-effects-and-electromyography-of-tracheal-intubation-under-general-anesthesia
#16
D-J Yu, H-Y Gao
OBJECTIVE: To observe the influences of atracurium besylate and vecuronium bromide on muscle relaxant effects and electromyography of patients with tracheal intubation under general anesthesia in thyroid surgery. PATIENTS AND METHODS: 120 patients treated with thyroid surgery were randomly divided into group A and group V. Patients in group A were administered with cisatracurium besylate combined with propofol and fentanyl for induction of tracheal intubation under general anesthesia...
April 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28462732/anaesthesia-for-electroconvulsive-therapy-new-tricks-for-old-drugs-a-systematic-review
#17
Tobias Kvist Stripp, Martin Balslev Jorgensen, Niels Vidiendal Olsen
OBJECTIVE: The objective of this review is to investigate existing literature in order to delineate whether the use of anaesthesia and timing of seizure induction in a new and optimised way may improve the efficacy of electroconvulsive therapy (ECT). METHODS: PubMed/MEDLINE was searched for existing literature, last search on 24 June 2015. Relevant clinical studies on human subjects involving choice of anaesthetic, ventilation and bispectral index (BIS) monitoring in the ECT setting were considered...
May 2, 2017: Acta Neuropsychiatrica
https://www.readbyqxmd.com/read/28456907/bispectral-index-monitoring-in-cancer-patients-undergoing-palliative-sedation-a-preliminary-report
#18
Edith Monreal-Carrillo, Silvia Allende-Pérez, David Hui, Maria-Fernanda García-Salamanca, Eduardo Bruera, Emma Verástegui
INTRODUCTION: Continuous palliative sedation (PS) is currently titrated based on clinical observation; however, it is often unclear if patients are still aware of their suffering. The aim of this prospective study is to characterize the level of consciousness in patients undergoing PS using Bispectral Index (BIS) monitoring. PATIENTS AND METHODS: We enrolled consecutive patients with refractory symptoms requiring PS. We documented the level of sedation using Ramsay Sedation Scale (RSS) and BIS at 0, 2, 4, 6, 12, and 24 h during the first day of PS and examined their degree of association...
April 29, 2017: Supportive Care in Cancer: Official Journal of the Multinational Association of Supportive Care in Cancer
https://www.readbyqxmd.com/read/28424537/awake-craniotomy-anesthetic-management-using-dexmedetomidine-propofol-and-remifentanil
#19
Andrea Prontera, Stefano Baroni, Andrea Marudi, Franco Valzania, Alberto Feletti, Francesca Benuzzi, Elisabetta Bertellini, Giacomo Pavesi
INTRODUCTION: Awake craniotomy allows continuous monitoring of patients' neurological functions during open surgery. Anesthesiologists have to sedate patients in a way so that they are compliant throughout the whole surgical procedure, nevertheless maintaining adequate analgesia and anxiolysis. Currently, the use of α2-receptor agonist dexmedetomidine as the primary hypnotic-sedative medication is increasing. METHODS: Nine patients undergoing awake craniotomy were treated with refined monitored anesthesia care (MAC) protocol consisting of a combination of local anesthesia without scalp block, low-dose infusion of dexmedetomidine, propofol, and remifentanil, without the need of airways management...
2017: Drug Design, Development and Therapy
https://www.readbyqxmd.com/read/28422846/application-of-remifentanil-for-conscious-sedation-and-analgesia-in-short-term-ercp-and-est-surgery
#20
RANDOMIZED CONTROLLED TRIAL
Guo-Qiang Sun, Bao-Feng Gao, Guan-Jun Li, Yun-Long Lei, Jie Li
This study aims to observe and evaluate the use of remifentanil in conscious sedation and analgesia for the safety and comfort of patients undergoing short-term endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic sphincterotomy (EST).Sixty-eight patients who underwent ERCP and EST were randomly divided into two groups: research group and control group. Patients in the research group were intravenously injected with remifentanil (80-2/3* age) for 1 to 2 minutes, combined with the intravenous injection of propofol (20-30 mg) during the course of treatment...
April 2017: Medicine (Baltimore)
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