keyword
MENU ▼
Read by QxMD icon Read
search

oxygen concentration during anesthesia

keyword
https://www.readbyqxmd.com/read/28620251/physiological-alteration-quality-of-anesthesia-and-economy-of-isoflurane-in-domestic-chickens-gallus-domesticus
#1
Parag Deori, Kushal Konwar Sarma, Parsha Jyoti Nath, Chandan Kumar Singh, Rita Nath
AIM: Aim of the study was to evaluate the effect of isoflurane anesthesia on physiological parameters, assessment of anesthetic qualities, and economy of use of isoflurane in domestic chickens (Gallus domesticus). MATERIALS AND METHODS: In this study, 18 apparently healthy adult domestic chickens were selected randomly and divided into three groups. The birds were anesthetized by masked induction with isoflurane at a dose rate of 3.5%, 4%, and 5% and were maintained with 1...
May 2017: Veterinary World
https://www.readbyqxmd.com/read/28614132/the-effect-of-chronic-opioid-use-on-end-tidal-concentration-of-sevoflurane-necessary-to-maintain-a-bispectral-index-below-50-a-prospective-single-blind-study
#2
Tak Kyu Oh, Woosik Eom, Jiyeon Yim, Namwoo Kim, Kyungho Kwon, Seong-Eun Kim, Dae Hyun Kim
BACKGROUND: Opioid analgesics decrease the minimum alveolar concentration of inhalation agents during the acute phase response. However, the effect of chronic opioid exposure on minimum alveolar concentration of inhalation agents remains unknown. This study aimed to determine the concentration of sevoflurane necessary to maintain a bispectral index (BIS) <50 (SEVOBIS50) in patients with chronic opioid use compared with those naïve to opioid use. METHODS: We included chronic opioid users who received a stable dose of oral morphine of at least 60 mg/d according to the morphine equivalent daily dose for at least 4 weeks and opioid-naïve patients...
July 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28599888/cardiopulmonary-effects-of-pleural-insufflation-with-co2-during-two-lung-ventilation-in-dorsally-recumbent-anesthetized-horses
#3
Kaylee S Bohaychuk-Preuss, M Valentina Carrozzo, Tanya Duke-Novakovski
OBJECTIVE: To record the cardiopulmonary effects of pleural CO2 positive pressure insufflation in anesthetized horses. STUDY DESIGN: Prospective study. ANIMALS: Seven horses (mean ± standard deviation, 530.9 ± 68.1 kg) undergoing terminal surgery. METHODS: Horses were sedated with xylazine. Anesthesia was induced with ketamine-propofol and maintained with isoflurane, positive pressure ventilation, detomidine infusion, and butorphanol with the horses in dorsal recumbency...
January 10, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28506542/coronary-sinus-isoflurane-concentration-in-cardiac-surgery
#4
Ka Ting Ng, R Peter Alston, George Just, Chris McKenzie
OBJECTIVE: Volatile anesthetic agents such as isoflurane may be associated with fewer adverse myocardial events compared with total intravenous anesthesia in cardiac surgery. The authors aimed to determine whether reasonable isoflurane concentrations at tissue level were being achieved to protect the myocardium using this agent. The isoflurane concentration in myocardium has never been measured. The primary aim was to sample coronary sinus (CS) blood and measure its isoflurane concentration...
March 9, 2017: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/28484741/effects-of-clove-oil-and-lidocaine-hcl-anesthesia-on-water-parameter-during-simulated-transportation-in-the-marine-medaka-oryzias-dancena
#5
In-Seok Park, Hyun Woo Gil, Tae Ho Lee, Yoon Kwon Nam, Sang Gu Lim, Dong Soo Kim
Optimum concentrations of anesthetic clove oil and anesthetic lidocaine-HCl were determined for a species of adult marine medaka, Oryzias dancena, over a range of salinity conditions, and investigated in a transport simulation experiment by analyzing various water and physiological parameters. Research indicated that the higher the concentration of anesthetic at each salinity, the shorter the anesthesia time at each salinity. At each concentration, fish were anesthetized slower at water salinities over 10 ppt (P<0...
March 2017: Balsaeng'gwa Saengsig
https://www.readbyqxmd.com/read/28467526/centers-for-disease-control-and-prevention-guideline-for-the-prevention-of-surgical-site-infection-2017
#6
Sandra I Berríos-Torres, Craig A Umscheid, Dale W Bratzler, Brian Leas, Erin C Stone, Rachel R Kelz, Caroline E Reinke, Sherry Morgan, Joseph S Solomkin, John E Mazuski, E Patchen Dellinger, Kamal M F Itani, Elie F Berbari, John Segreti, Javad Parvizi, Joan Blanchard, George Allen, Jan A J W Kluytmans, Rodney Donlan, William P Schecter
Importance: The human and financial costs of treating surgical site infections (SSIs) are increasing. The number of surgical procedures performed in the United States continues to rise, and surgical patients are initially seen with increasingly complex comorbidities. It is estimated that approximately half of SSIs are deemed preventable using evidence-based strategies. Objective: To provide new and updated evidence-based recommendations for the prevention of SSI...
May 3, 2017: JAMA Surgery
https://www.readbyqxmd.com/read/28441420/mapping-of-the-brain-hemodynamic-responses-to-sensorimotor-stimulation-in-a-rodent-model-a-bold-fmri-study
#7
Salem Boussida, Amidou S Traoré, Franck Durif
Blood Oxygenation Level Dependent functional MRI (BOLD fMRI) during electrical paw stimulation has been widely used in studies aimed at the understanding of the somatosensory network in rats. However, despite the well-established anatomical connections between cortical and subcortical structures of the sensorimotor system, most of these functional studies have been concentrated on the cortical effects of sensory electrical stimulation. BOLD fMRI study of the integration of a sensorimotor input across the sensorimotor network requires an appropriate methodology to elicit functional activation in cortical and subcortical areas owing to the regional differences in both neuronal and vascular architectures between these brain regions...
2017: PloS One
https://www.readbyqxmd.com/read/28231032/effects-of-live-trapping-and-isoflurane-anesthesia-on-free-ranging-american-martens-martes-americana
#8
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, US 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...
July 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28214930/investigation-of-optical-neuro-monitoring-technique-for-detection-of-maintenance-and-emergence-states-during-general-anesthesia
#9
Gabriela Hernandez-Meza, Meltem Izzetoglu, Mary Osbakken, Michael Green, Hawa Abubakar, Kurtulus Izzetoglu
The American Society of Anesthesiologist recommends peripheral physiological monitoring during general anesthesia, which offers no information regarding the effects of anesthetics on the brain. Since no "gold standard" method exists for this evaluation, such a technique is needed to ensure patient comfort, procedure quality and safety. In this study we investigated functional near infrared spectroscopy (fNIRS) as possible monitor of anesthetic effects on the prefrontal cortex. Anesthetic drugs, such as sevoflurane, suppress the cerebral metabolism and alter the cerebral blood flow...
February 18, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28178175/the-effect-of-nicardipine-on-the-surgical-pleth-index-during-thyroidectomy-under-general-anesthesia-a-prospective-double-blind-randomized-controlled-trial
#10
RANDOMIZED CONTROLLED TRIAL
Young Ju Won, Byung Gun Lim, Gwi Eun Yeo, Min Ki Lee, Dong Kyu Lee, Heezoo Kim, Il Ok Lee, Myoung Hoon Kong
BACKGROUND: The effectiveness of surgical pleth index (SPI) for managing nociception-antinociception balance during general anesthesia with vasodilators, including nicardipine has not been demonstrated. We aimed to compare the time course during surgery in SPI values in patients receiving nicardipine or remifentanil infusion during thyroidectomy. METHODS: Forty patients undergoing thyroidectomy were randomly assigned to receive nicardipine (group N; n = 19) or remifentanil (group R; n = 21) along with induction (propofol, fentanyl, and rocuronium) and maintenance (50% desflurane/nitrous oxide in oxygen) anesthesia (goal bispectral index [BIS] ∼50)...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28177176/electroencephalographic-discontinuity-during-sevoflurane-anesthesia-in-infants-and-children
#11
Laura Cornelissen, Ann M Bergin, Kimberly Lobo, Carolina Donado, Janet S Soul, Charles B Berde
BACKGROUND: Deep anesthesia in adults may be associated with electroencephalographic (EEG) suppression and higher rates of postoperative complications. Little is known about the impact of anesthetic depth on short- or long-term outcomes in pediatrics. Brain activity monitoring may complement clinical signs of anesthetic depth. This prospective observational study aimed to assess the frequency and degree of profound EEG suppression using multichannel EEG in children during sevoflurane general anesthesia...
February 8, 2017: Paediatric Anaesthesia
https://www.readbyqxmd.com/read/28099321/preoxygenation-physiologic-basis-benefits-and-potential-risks
#12
REVIEW
Usharani Nimmagadda, M Ramez Salem, George J Crystal
Preoxygenation before anesthetic induction and tracheal intubation is a widely accepted maneuver, designed to increase the body oxygen stores and thereby delay the onset of arterial hemoglobin desaturation during apnea. Because difficulties with ventilation and intubation are unpredictable, the need for preoxygenation is desirable in all patients. During emergence from anesthesia, residual effects of anesthetics and inadequate reversal of neuromuscular blockade can lead to hypoventilation, hypoxemia, and loss of airway patency...
February 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28051988/ultraportable-oxygen-concentrator-use-in-u-s-army-special-operations-forward-area-surgery-a-proof-of-concept-in-multiple-environments
#13
Michael Rybak, Lynn C Huffman, Richard Nahouraii, John Loden, Marcos Gonzalez, Ramey Wilson, Paul D Danielson
INTRODUCTION: A limitation to surgical care in an austere environment is the supply of oxygen to support mechanical ventilation and general anesthesia. Portable oxygen concentrators (OCs) offer an alternative to traditional compressed oxygen tanks. OBJECTIVES: We set out to demonstrate that a low-pressure OC system could supply the mechanical ventilation needs in an austere operating environment. METHODS: An ultraportable OC (SAROS Model 3000, SeQual Technologies, Ball Ground, Georgia) was paired with an Impact 754 ventilator (Impact Instrumentation, West Caldwell, New Jersey) to evaluate the delivered fraction of inspired oxygen (FiO2) to a test lung across a range of minute ventilations and at altitudes of 1,200 and 6,500 feet above sea level...
January 2017: Military Medicine
https://www.readbyqxmd.com/read/28006942/propofol-induced-mitochondrial-and-contractile-dysfunction-of-the-rat-ventricular-myocardium
#14
M Grundmanová, D Jarkovská, A Süß, Z Tůma, M Marková, Z Grundman, A El-Kadi, M Čedíková, M Štengl, J Kuncová
Propofol is a short-acting hypnotic agent used in human medicine for sedation and general anesthesia. Its administration can be associated with serious cardiovascular side-effects that include decrease in arterial blood pressure and cardiac output. The aim of the present study was to evaluate propofol effects on mitochondrial respiration, myocardial contractility and electrophysiology in the same samples isolated from the heart ventricles of adult rats. Mitochondrial oxygen consumption was measured in permeabilized samples dissected from free walls of both ventricles using high-resolution respirometry...
December 22, 2016: Physiological Research
https://www.readbyqxmd.com/read/27916222/acute-amiodarone-pulmonary-toxicity-after-surgical-procedures
#15
REVIEW
Jirapat Teerakanok, Pakpoom Tantrachoti, Phumpattra Chariyawong, Kenneth Nugent
Amiodarone can cause toxicity in several organs, including amiodarone-induced pulmonary toxicity which is a subacute or chronic complication. Amiodarone-induced acute respiratory distress syndrome (ARDS) in postoperative patients is a rare acute complication. The PubMed and Google Scholar databases were searched. Seven retrospective and prospective case series and 10 case reports of amiodarone-induced postoperative ARDS were reviewed. All patients received amiodarone chronically or during the perioperative period...
December 2016: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/27890467/use-of-hyperbaric-oxygen-therapy-and-pegylated-carboxyhemoglobin-bovine-in-a-jehovah-s-witness-with-life-threatening-anemia-following-postpartum-hemorrhage
#16
K Thenuwara, J Thomas, M Ibsen, U Ituk, K Choi, E Nickel, M J Goodheart
We present a case of a Jehovah's Witness patient who refused blood products, with the exception of albumin and clotting factors, and underwent cesarean section under spinal anesthesia complicated by postpartum hemorrhage. She was fluid resuscitated and treated with multiple uterotonics and internal iliac artery embolization. Because of agitation she required emergency tracheal intubation. Her hemoglobin concentration dropped from a preoperative value of 12mg/dL to 3mg/dL on postoperative day one. She was acidotic, requiring vasopressors for hemodynamic stability and remained ventilated and sedated...
February 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/27867719/monitoring-cerebral-oxygenation-and-local-field-potential-with-a-variation-of-isoflurane-concentration-in-a-rat-model
#17
Dong-Hyuk Choi, Teo Jeon Shin, Seonghyun Kim, Jayyoung Bae, Dongrae Cho, Jinsil Ham, Ji-Young Park, Hyoung-Ihl Kim, Seongwook Jeong, Boreom Lee, Jae Gwan Kim
We aimed to investigate experimentally how anesthetic levels affect cerebral metabolism measured by near-infrared spectroscopy (NIRS) and to identify a robust marker among NIRS parameters to discriminate various stages of anesthetic depth in rats under isoflurane anesthesia. In order to record the hemodynamic changes and local field potential (LFP) in the brain, fiber-optic cannulae and custom-made microelectrodes were implanted in the frontal cortex of the skull. The NIRS and LFP signals were continuously monitored before, during and after isoflurane anesthesia...
October 1, 2016: Biomedical Optics Express
https://www.readbyqxmd.com/read/27771984/the-effects-of-adding-ischemic-preconditioning-during-desflurane-inhalation-anesthesia-or-propofol-total-intravenous-anesthesia-on-pneumoperitoneum-induced-oxidative-stress
#18
RANDOMIZED CONTROLLED TRIAL
Safinaz Karabayirli, Onder Surgit, Hulya Kasikara, Cemile Koca Bicer, Merve Ergin, Ruveyda Irem Demircioglu, Bunyamin Muslu
BACKGROUND: The aim of the study was to explore the differences in oxidative stress during anesthesia with desflurane/N2O or propofol/remifentanil in patients undergoing laparoscopic cholecystectomy and additionally to evaluate the differential effects of desflurane and propofol on ischemic preconditioning (IP). MATERIALS AND METHODS: One hundred patients were randomly allocated to four groups. For anesthesia maintenance, the inhalation group (Group I) and the inhalation plus IP group (Group IIP) received desflurane at an end-tidal concentration of 4-6 vol% in oxygen/N2O, and the TIVA group (Group T) and TIVA plus IP group (Group TIP) received infusions of propofol and remifentanil...
February 2017: Acta Chirurgica Belgica
https://www.readbyqxmd.com/read/27725946/design-of-multichannel-functional-near-infrared-spectroscopy-system-with-application-to-propofol-and-sevoflurane-anesthesia-monitoring
#19
Zhenhu Liang, Yue Gu, Xuejing Duan, Lei Cheng, Shujuan Liang, Yunjie Tong, Xiaoli Li
Monitoring the changes of cerebral hemodynamics and the state of consciousness during general anesthesia (GA) is clinically important. There is a great need for developing advanced detectors to investigate the physiological processes of the brain during GA. We developed a multichanneled, functional near-infrared spectroscopy (fNIRS) system device and applied it to GA operation monitoring. The cerebral hemodynamic data from the forehead of 11 patients undergoing propofol and sevoflurane anesthesia were analyzed...
October 2016: Neurophotonics
https://www.readbyqxmd.com/read/27725350/cardiorespiratory-effects-of-isoflurane-in-asiatic-black-bears-ursus-thibetanus-anesthetized-with-intramuscular-medetomidine-and-zolazepam-tiletamine
#20
Dong-Hyuk Jeong, Jeong-Jin Yang, Seong-Hoon Seok, Dong-Joo Song, Seong-Chan Yeon
The objective of this study was to determine the dose-dependent effects of isoflurane on various cardiovascular parameters and the stable range of isoflurane concentrations in Asiatic black bears (Ursus thibetanus). Seven Asiatic black bears were intramuscularly injected with medetomidine, zolazepam and tiletamine (MZT) to induce anesthesia, and anesthesia was maintained by administering isoflurane in 100% oxygen (4 l/min) without mechanical ventilation. Several cardiovascular parameters were measured at five end-tidal isoflurane concentrations (0...
January 20, 2017: Journal of Veterinary Medical Science
keyword
keyword
79552
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"