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Propofol analysis

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https://www.readbyqxmd.com/read/27903341/-the-application-of-conscious-sedation-with-a-small-dose-of-dexmedetomidine-and-sufentanil-in-elderly-patients-undergoing-multiple-intestinal-polyps-resection
#1
C M Shi, Y D Zhou, M Xu, X D Wang, L M Meng, X J Liu, X Y Guo
Objective: To explore the effectiveness and feasibility of conscious sedation with a low dose of dexmedetomidine and sufentanil during multiple intestinal polyps resection in elderly patients. Methods: Sixty elderly patients who underwent multiple intestinal polyps resection in Peking University Third Hospital from Janurary to May 2016 were randomly divided into dexmedetomidine group (D group, n=30) and propofol group (P group, n=30). There were 28 males and 32 females with a mean age of (70.4±4.5) years old (range: 65-80 years old)...
November 22, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/27885537/safety-analysis-of-bariatric-patients-undergoing-outpatient-upper-endoscopy-with-non-anesthesia-administered-propofol-sedation
#2
Tyler McVay, John C Fang, Linda Taylor, Alexander Au, Wesley Williams, Angela P Presson, Ragheed Al-Dulaimi, Eric Volckmann, Anna Ibele
BACKGROUND: Non-anesthesia administered propofol (NAAP) has been shown to be a safe and effective method of sedation for patients undergoing gastrointestinal endoscopy. Bariatric surgery patients are potentially at a higher risk for sedation-related complications due to co-morbidities including obstructive sleep apnea. The outcomes of NAAP in bariatric patients have not been previously reported. METHODS: In this retrospective cohort study, severely obese patients undergoing pre-surgical outpatient esophagogastroduodenoscopy (EGD) were compared to non-obese control patients (BMI ≤ 25 kg/m(2)) undergoing diagnostic EGD at our institution from March 2011-September 2015 using our endoscopy database...
November 24, 2016: Obesity Surgery
https://www.readbyqxmd.com/read/27885426/prospective-cohort-study-assessing-chronic-pain-in-patients-following-minor-surgery-for-breast-cancer
#3
Régis Fuzier, Floriane Puel, Philippe Izard, Agnès Sommet, Sébastien Pierre
PURPOSE: Pain after tumorectomy and sentinel lymph node dissection is poorly reported in the literature. We carried out a prospective survey aimed at assessing pain three months after such minor surgery for breast cancer. METHODS: The study was approved by the local ethics committee. Most surgeries followed a standard protocol involving general anesthesia with no regional analgesia technique, laryngeal mask, sufentanil and propofol for induction, and multimodal analgesia during the postoperative period...
November 24, 2016: Journal of Anesthesia
https://www.readbyqxmd.com/read/27873001/1-2-dimethylimidazole-4-sulfonyl-chloride-dmisc-a-novel-derivatization-strategy-for-the-analysis-of-propofol-by-lc-esi-ms-ms
#4
Alexandra Maas, Christoph Maier, Beate Michel-Lauter, Burkhard Madea, Cornelius Hess
Analysis of the anesthetic agent propofol in biological samples by LC-MS/MS is a great challenge due to weak fragmentation and poor ionization efficacy of propofol resulting in weak signal intensities. Improvements of the ionization and fragmentation efficacy can be achieved by conversion of propofol to its dimethylimidazolesulfonyl (DMIS) derivative by a derivatization reaction using 1,2-dimethylimidazole-4-sulfonyl chloride (DMISC). This DMIS derivative produced intense [M + H](+) ions in positive-ion LC-ESI-MS/MS with the dimethylimidazole moieties representing the most abundant product ions...
November 21, 2016: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/27871584/a-comparison-of-3-ventilation-strategies-in-children-younger-than-1-year-using-a-proseal-laryngeal-mask-airway-a-randomized-controlled-trial
#5
T Wesley Templeton, Lauren K Hoke, Leah B Templeton, Douglas G Ririe, Danielle M Rose, Yvon F Bryan
STUDY OBJECTIVE: To determine quantitative differences in several routinely measured ventilation parameters using a standardized anesthetic technique and 3 different ventilation modalities in patients younger than 1 year with a ProSeal laryngeal mask airway (PLMA). DESIGN: Randomized prospective study. SETTING: Tertiary care pediatric hospital. PATIENTS: Thirty-nine American Society Anesthesiologists classifications 1 to 2, pediatric patients younger than 1 year...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27871556/an-analysis-of-green-discoloration-of-urine-caused-by-propofol-infusion
#6
Keiko Fujii-Abe, Hiroshi Kawahara, Haruhisa Fukayama
BACKGROUND: Propofol is a short-acting, intravenous sedative-hypnotic agent that is widely used for the induction and maintenance of general anesthesia and sedation. An uncommon adverse effect of propofol is green discoloration of the urine, which has been reported not only under general anesthesia but also with sedation. Although it is assumed that the phenolic derivatives of propofol can cause green discoloration of the urine, the actual origin remains unknown. The aim of this report was to identify the origin of the green discoloration of the urine using liquid chromatography-mass spectrometry (LC-MS)...
December 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27869199/ion-mobility-spectrometry-as-a-simple-and-rapid-method-to-measure-the-plasma-propofol-concentrations-for-intravenous-anaesthesia-monitoring
#7
Xin Wang, Qinghua Zhou, Dandan Jiang, Yulei Gong, Enyou Li, Haiyang Li
The plasma propofol concentration is important information for anaesthetists to monitor and adjust the anaesthesia depth for patients during a surgery operation. In this paper, a stand-alone ion mobility spectrometer (IMS) was constructed for the rapid measurement of the plasma propofol concentrations. Without any sample pre-treatment, the plasma samples were dropped on a piece of glass microfiber paper and then introduced into the IMS cell by the thermal desorption directly. Each individual measurement could be accomplished within 1 min...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27855373/effects-of-propofol-on-several-membrane-characteristics-of-cervical-cancer-cell-lines
#8
Fan Zhang, Changsong Wang, Yinghua Cui, Shuping Li, Yuanfei Yao, Yanpeng Ci, Jinghe Wang, Wei Hou, Anqi Wu, Enyou Li
BACKGROUND: Although significant advances have been made toward understanding the molecular mechanisms underlying the effect of propofol on tumor cell metastasis, less is known regarding how cell membrane and cytoskeletal ultrastructure are affected in this process. Here, we investigated the relationship between cell morphology and cell size, which are features mainly defined by the cytoskeleton. METHODS: To confirm the effects of propofol on the migratory ability of human cervical carcinoma cells, cell migration and invasion were examined through scratch wound healing and transwell membrane assays...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27833478/comparison-of-rocuronium-at-two-different-doses-and-succinylcholine-for-endotracheal-intubation-in-adult-patients-for-elective-surgeries
#9
S G Chavan, S Gangadharan, A K Gopakumar
BACKGROUND: The effects of rocuronium at two different doses, that is, 0.6 mg/kg (2 × ED95) and 0.9 mg/kg (3 × ED95), were compared with succinylcholine (2 mg/kg) when used for endotracheal intubation in adult patients for elective surgeries under general anesthesia. MATERIALS AND METHODS: Ninety patients were divided into three groups of 30 each. Groups A, B received injection rocuronium at 0.6 mg/kg, 0.9 mg/kg respectively and Group C received succinylcholine at 2 mg/kg...
October 2016: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/27831999/safety-of-propofol-for-oxygenator-exchange-in-extracorporeal-membrane-oxygenation
#10
Benjamin Hohlfelder, Paul M Szumita, Susan Lagambina, Gerald Weinhouse, Jeremy R DeGrado
The purpose of this analysis is to describe the safety of propofol administration in adult ECMO patients. We performed a prospective cohort analysis of patients utilizing ECMO at Brigham and Women's Hospital between February 2013 and October 2015. Patients were included if they utilized ECMO for at least 48 hours. The major endpoint of the analysis was the median oxygenator lifespan. Oxygenator exchanges were analyzed by the number of patients requiring an oxygenator exchange and the number of oxygenator exchanges per ECMO day...
November 9, 2016: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/27828800/safety-and-efficacy-of-volatile-anesthetic-agents-compared-with-standard-intravenous-midazolam-propofol-sedation-in-ventilated-critical-care-patients-a-meta-analysis-and-systematic-review-of-prospective-trials
#11
Angela Jerath, Jonathan Panckhurst, Matteo Parotto, Nicholas Lightfoot, Marcin Wasowicz, Niall D Ferguson, Andrew Steel, W Scott Beattie
BACKGROUND: Inhalation agents are being used in place of intravenous agents to provide sedation in some intensive care units. We performed a systematic review and meta-analysis of prospective randomized controlled trials, which compared the use of volatile agents versus intravenous midazolam or propofol in critical care units. METHODS: A search was conducted using MEDLINE (1946-2015), EMBASE (1947-2015), Web of Science index (1900-2015), and Cochrane Central Register of Controlled Trials...
November 8, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27826892/the-effect-of-ugt1a9-cyp2b6-and-cyp2c9-genes-polymorphism-on-individual-differences-in-propofol-pharmacokinetics-among-polish-patients-undergoing-general-anaesthesia
#12
Adam Mikstacki, Oliwia Zakerska-Banaszak, Marzena Skrzypczak-Zielinska, Barbara Tamowicz, Michał Prendecki, Jolanta Dorszewska, Marta Molinska-Glura, Malgorzata Waszak, Ryszard Slomski
Propofol (2,6-diisopropylphenol) is one of the safest and most commonly used anaesthetic agents for intravenous general anaesthesia. However, in clinical practice, a large inter-individual variability in response to propofol is observed. To limit the risk of adverse effects, pharmacogenetic investigations are recommended. The aim of our study was to verify the impact of genetic changes c.516G>T in the CYP2B6, c.98T>C in the UGT1A9 and c.1075A>C in the CYP2C9 genes on the individual propofol pharmacokinetic profile in the Polish patients undergoing general anaesthesia...
November 8, 2016: Journal of Applied Genetics
https://www.readbyqxmd.com/read/27825646/the-risk-of-postoperative-nausea-and-vomiting-between-surgical-patients-received-propofol-and-sevoflurane-anesthesia-a-matched-study
#13
Hideki Matsuura, Satoki Inoue, Masahiko Kawaguchi
OBJECTIVES: The current consensus guidelines for managing postoperative nausea and vomiting (PONV) suggest that one of anesthetic risk factors is the use of volatile anesthetics. However, in clinical settings, it is rare to perceive propofol to be superior to volatile anesthetics for the prevention of PONV. To assess whether PONV is related to the type of anesthetic delivered, we compared the incidence and duration of PONV between propofol anesthesia and sevoflurane anesthesia. METHODS: We performed a retrospective review of an institutional registry containing 21606 general anesthesia cases conducted following ethics board approval...
November 4, 2016: Acta Anaesthesiologica Taiwanica: Official Journal of the Taiwan Society of Anesthesiologists
https://www.readbyqxmd.com/read/27823709/the-utility-of-perioperative-polygraphy-in-the-diagnosis-of-obstructive-sleep-apnea
#14
Ivan Cundrle, Milos Belehrad, Milan Jelinek, Lyle J Olson, Ondrej Ludka, Vladimir Sramek
OBJECTIVE/BACKGROUND: Obstructive sleep apnea (OSA) is highly prevalent and often undiagnosed in surgical patients. The aim of this study was to compare polygraphy (PG) performed on sedated patients during surgery to overnight polysomnography (PSG). It was hypothesized that perioperative PG may be used to diagnose OSA. PATIENTS/METHODS: Overnight PSG was performed three days prior to surgery. For surgery, spinal anesthesia and sedation with propofol infusion were used...
September 2016: Sleep Medicine
https://www.readbyqxmd.com/read/27815997/rapid-and-efficient-crossing-blood-brain-barrier-hydrophobic-drug-delivery-system-based-on-propionylated-amylose-helix-nanoclusters
#15
Wei Gao, Yongchun Liu, Guixia Jing, Ke Li, Yuan Zhao, Baoyong Sha, Qiang Wang, Daocheng Wu
A novel strategy of rapid transport across the blood-brain barrier (BBB) via phosphatidylethanolamine-triggered release is developed through both molecular dynamics (MD) simulation and experiments. Hydrophobic drugs, namely, propofol, iodine, and 1,1'-dioctadecyltetramethyl indotricarbocyanine iodide, were loaded with propionylated amylose helix (HLPAH) nanoclusters to form PLPAH, ILPAH, and DLPAH nanoclusters, respectively. These clusters were subjected to MD simulation, structure measurement, in vitro triggered study, in vivo DLPAH imaging, and analysis of PLPAH sedative effects on rabbits...
October 28, 2016: Biomaterials
https://www.readbyqxmd.com/read/27815834/preventing-emergence-agitation-using-ancillary-drugs-with-sevoflurane-for-pediatric-anesthesia-a-network-meta-analysis
#16
Xin Wang, Qi Deng, Bin Liu, Xiangdi Yu
Using sevoflurane for pediatric anesthesia plays a pivotal role in surgeries. Emergence agitation (EA) is a major adverse event accompanied with pediatric anesthesia. Other anesthetic adjuvants can be combined with sevoflurane in clinical practices for different purposes. However, it is uncertain that such a practice may have substantial influence on the risk of EA. We conducted a literature search in online databases, including PubMed, Embase, Cochrane Library, and Clinical Trials. Key data were extracted from eligible randomized control trials (RCTs)...
November 4, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27790356/moderate-hypothermia-and-its-effects-in-reducing-the-applied-dose-of-anesthetics-for-patients-with-opium-dependence-in-cardiac-surgery-a-randomized-controlled-trial
#17
Reza Jalaian Taghadomi, Ebrahim Golmakani, Kambiz Alizadeh, Behrooz Mottahedi, Ali Rahdari, Shima Sheybani
BACKGROUND: An increasing number of patients addicted to opium are experiencing awareness during coronary artery bypass surgery (CABG) as a result of tolerance to anesthetics. OBJECTIVES: This research was primarily intended to determine the potential diminishing effects of moderate hypothermia on anesthetic dosage and recall of anesthesia during the procedure. METHODS: In this double-blind randomized controlled trial, a total of 80 CABG candidates with known addiction to opium were divided into two groups: one normothermic (N) and the other moderately hypothermic (H), both undergoing induction as well as close monitoring from September 2014 to January 2016...
September 2016: Electronic Physician
https://www.readbyqxmd.com/read/27788177/the-effect-of-propofol-on-mitochondrial-fission-during-oxygen-glucose-deprivation-and-reperfusion-injury-in-rat-hippocampal-neurons
#18
Haibin Wang, Shengfa Zheng, Maodong Liu, Changxin Jia, Shilei Wang, Xue Wang, Sha Xue, Yunliang Guo
The neuroprotective role of propofol in transient global and focal cerebral ischemia reperfusion (I/R) animal model has recently been highlighted. However, no studies have conducted to explore the relationship between mitochondrial fission/fusion and I/R injury under the intervention of propofol. Moreover, neuroprotective mechanism of propofol is yet unclear. Culturing primary hippocampal cells were subjected to oxygen-glucose deprivation and re-oxygenation (OGD/R) model, as a model of cerebral I/R in vitro...
2016: PloS One
https://www.readbyqxmd.com/read/27782948/sevoflurane-abolishes-oxygenation-impairment-in-a-long-term-rat-model-of-acute-lung-injury
#19
Patrick Kellner, Mattia Müller, Tobias Piegeler, Philipp Eugster, Christa Booy, Martin Schläpfer, Beatrice Beck-Schimmer
BACKGROUND: Patients experiencing acute lung injury (ALI) often need mechanical ventilation for which sedation may be required. In such patients, usually the first choice an intravenously administered drug. However, growing evidence suggests that volatile anesthetics such as sevoflurane are a valuable alternative. In this study, we evaluate pulmonary and systemic effects of long-term (24-hour) sedation with sevoflurane compared with propofol in an in vivo animal model of ALI. METHODS: Adult male Wistar rats were subjected to ALI by intratracheal lipopolysaccharide (LPS) application, mechanically ventilated and sedated for varying intervals up to 24 hours with either sevoflurane or propofol...
October 24, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27766525/comparison-of-the-qcon-and-qnox-indices-for-the-assessment-of-unconsciousness-level-and-noxious-stimulation-response-during-surgery
#20
Umberto Melia, Eva Gabarron, Mercé Agustí, Nuria Souto, Patricia Pineda, Joan Fontanet, Montserrat Vallverdu, Erik Weber Jensen, Pedro Gambus
The objective of this work is to compare the performances of two electroencephalogram based indices for detecting loss of consciousness and loss of response to nociceptive stimulation. Specifically, their behaviour after drug induction and during recovery of consciousness was pointed out. Data was recorded from 140 patients scheduled for general anaesthesia with a combination of propofol and remifentanil. The qCON 2000 monitor (Quantium Medical, Barcelona, Spain) was used to calculate the qCON and qNOX. Loss of response to verbal command and loss of eye-lash reflex were assessed during the transition from awake to anesthetized, defining the state of loss of consciousness...
October 20, 2016: Journal of Clinical Monitoring and Computing
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