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https://www.readbyqxmd.com/read/28210501/perioperative-concerns-for-profound-metabolic-alkalosis-during-kidney-transplantation-a-case-report
#1
Jung Ju Choi, Yong Beom Kim, Hong Soon Kim, Kyung Cheon Lee, Youn Yi Jo
INTRODUCTION: Profound metabolic alkalosis is an uncommon consideration for the anesthetic management of kidney transplantation. Serum total carbon dioxide content and complex electrolyte abnormalities might be important diagnostic clues for the presence of metabolic alkalosis in the absence of arterial blood gas analysis. CASE PRESENTATION: A 34-year-old female visited Gachon University Gil Medical Center, Incheon, South Korea during year 2015. She experienced aggravated renal function due to chronic hypokalemia and severe hypochloremic metabolic alkalosis, induced by laxative abuse, and underwent ABO incompatible kidney transplantation...
November 2016: Iranian Red Crescent Medical Journal
https://www.readbyqxmd.com/read/28190622/effect-of-carbon-dioxide-on-the-twinkling-artifact-in-ultrasound-imaging-of-kidney-stones-a-pilot-study
#2
Julianna C Simon, Yak-Nam Wang, Bryan W Cunitz, Jeffrey Thiel, Frank Starr, Ziyue Liu, Michael R Bailey
Bone demineralization, dehydration and stasis put astronauts at increased risk of forming kidney stones in space. The color-Doppler ultrasound "twinkling artifact," which highlights kidney stones with color, can make stones readily detectable with ultrasound; however, our previous results suggest twinkling is caused by microbubbles on the stone surface which could be affected by the elevated levels of carbon dioxide found on space vehicles. Four pigs were implanted with kidney stones and imaged with ultrasound while the anesthetic carrier gas oscillated between oxygen and air containing 0...
February 9, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28190546/sevoflurane-attenuates-ischemia-reperfusion-injury-in-a%C3%A2-rat%C3%A2-lung%C3%A2-transplantation-model
#3
Akihiro Ohsumi, Katherine Marseu, Peter Slinger, Karen McRae, Hyunhee Kim, Zehong Guan, David M Hwang, Mingyao Liu, Shaf Keshavjee, Marcelo Cypel
BACKGROUND: Sevoflurane is one of the most commonly used volatile anesthetic agents with the fastest onset and offset, replacing isoflurane in modern anesthesiology. Preconditioning and postconditioning using volatile anesthetics can attenuate ischemia-reperfusion injury (IRI). However, no previous studies have evaluated the effect of sevoflurane in lung transplantation after cold ischemic injury. We aimed to study the effects of donor and recipient treatment with sevoflurane in a rat lung transplantation model...
February 9, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28168839/histamine-h3-receptor-antagonist-prevents-memory-deficits-and-synaptic-plasticity-disruption-following-isoflurane-exposure
#4
Tao Luo, Ying Wang, Jian Qin, Zhi-Gang Liu, Min Liu
BACKGROUND: Exposure to pharmacological concentration of inhaled anesthetics such as isoflurane can cause short- or long-term cognitive impairments in preclinical studies. The selective antagonists of the histamine H3 receptors are considered as a promising group of novel therapeutic agents for the treatment of cognitive disorders. In this study, we investigated whether ciproxifan, a nonimidazole antagonist of H3 histamine receptors, could overcome the functional and electrophysiological sequela associated with isoflurane anesthesia...
February 6, 2017: CNS Neuroscience & Therapeutics
https://www.readbyqxmd.com/read/28160986/beat-to-beat-a-measured-look-at-the-history-of-pulse-oximetry
#5
REVIEW
Antoinette Van Meter, Uduak Williams, Acsa Zavala, Joshua Kee, Elizabeth Rebello, January Tsai, Ifeyinwa Ifeanyi, Joseph Ruiz, Jeffery Lim, Pascal Owusu-Agyemang
It can be argued that pulse oximetry is the most important technological advancement ever made in monitoring the well-being and safety of patients undergoing anesthesia. Before its development, the physical appearance of the patient and blood gas analysis were the only methods of assessing hypoxemia in patients. The disadvantages of blood gas analysis are that it is not without pain, complications, and most importantly does not provide continuous, real-time data. Although it has become de rigueur to use pulse oximetry for every anesthetic, the road leading to pulse oximetry began long ago...
January 2017: Journal of Anesthesia History
https://www.readbyqxmd.com/read/28160984/the-2016-lewis-h-wright-memorial-lecture-america-s-doctor-anaesthetists-1862-1936-turning-a-tide-of-asphyxiating-waves
#6
George S Bause
Laughing-gas showman G.Q. Colton franchised dental extraction under 100% nitrous oxide in many large American cities before popularizing the practice with French Imperial Court dentist T.W. Evans in France and then England. Chicago dentist Z. Rogers helped surgeon E. Andrews oxygenate nitrous oxide, with neither man changing significantly the clinical practices of others. London's F.W. Hewitt and Pittsburgh's S.J. Hayes oxygenated anesthetics with greater clinical impact. By 1920, E.I. McKesson had publicized his practice of secondary saturation with bursts of 100% nitrous oxide to relax musculature in anesthetized patients...
January 2017: Journal of Anesthesia History
https://www.readbyqxmd.com/read/28154466/nasopharyngeal-temperature-measurement-in-sheep-during-general-anesthesia
#7
Tabita Tan, Jonathon Tuke, Gabrielle C Musk
The aim of this study was to compare nasopharyngeal and esophageal temperature measurements in anesthetized sheep with a range of fresh gas flows (1 to 6 L/min) through the breathing system. Data were compared using a Bland-Altman plot and correlation coefficients, and error measures were calculated. One hundred and ninety-five sets of data were collected from 20 sheep weighing 41 kg (31 to 51.5 kg). The bias (95% limit of agreement), correlation coefficient, and absolute error for nasopharyngeal compared to esophageal temperature were 0...
January 2017: Canadian Journal of Veterinary Research, Revue Canadienne de Recherche Vétérinaire
https://www.readbyqxmd.com/read/28152199/investigation-of-perioperative-and-anesthetic-variables-affecting-short-term-survival-of-horses-with-small-intestinal-strangulating-lesions
#8
Pablo Espinosa, Sarah S Le Jeune, Alessia Cenani, Philip H Kass, Robert J Brosnan
OBJECTIVE: To determine if preoperative and intraoperative physiologic variables, and surgical factors correlate with survival to anesthetic recovery or hospital discharge, repeat celiotomy, and postoperative nasogastric intubation (NGT) in horses undergoing exploratory celiotomy for small intestinal (SI) strangulating lesions. STUDY DESIGN: Retrospective case series. ANIMALS: Horses that had surgical correction of SI strangulating lesions (n = 258)...
February 2, 2017: Veterinary Surgery: VS
https://www.readbyqxmd.com/read/28107080/the-influence-of-a-combined-butorphanol-and-midazolam-premedication-on-anesthesia-in-psittacid-species
#9
Marie Kubiak, Louise Roach, Kevin Eatwell
Premedication is considered routine for domestic animal and human anesthesia but is rarely applied to avian patients, and few controlled studies exist to document effects of premedication in avian species. To determine the effects of a butorphanol and midazolam premedication on general anesthesia and quality of induction and recovery phases in psittacid species, 17 clinically healthy birds undergoing anesthesia were randomly allocated into either a premedicated or control group. Anesthetic parameters were subsequently compared...
December 2016: Journal of Avian Medicine and Surgery
https://www.readbyqxmd.com/read/28103806/the-effect-of-fresh-gas-flow-rate-and-type-of-anesthesia-machine-on-time-to-reach-target-sevoflurane-concentration
#10
Hye Won Shin, Hae Na Yu, Go Eun Bae, Hyub Huh, Ji Yong Park, Ji Young Kim
BACKGROUND: Anesthesia machines have been developed by the application of new technology for rapid and easier control of anesthetic concentration. In this study, we used a test lung to investigate whether the time taken to reach the target sevoflurane concentration varies with the rate of fresh gas flow (FGF) and type of anesthesia machine (AM). METHODS: We measured the times taken to reach the target sevoflurane concentration (2 minimum alveolar concentration = 4%) at variable rates of FGF (0...
January 19, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28100177/effect-of-desflurane-remifentanil-vs-propofol-remifentanil-anesthesia-on-arterial-oxygenation-during-one-lung-ventilation-for-thoracoscopic-surgery-a-prospective-randomized-trial
#11
Youn Joung Cho, Tae Kyong Kim, Deok Man Hong, Jeong-Hwa Seo, Jae-Hyon Bahk, Yunseok Jeon
BACKGROUND: One-lung ventilation during thoracic surgery frequently disturbs normal systemic oxygenation. However, the effect of anesthetics on arterial oxygenation during one-lung ventilation has not been well established in human study. In this clinical trial, we investigated whether a difference between desflurane-remifentanil and propofol-remifentanil anesthesia can be observed with regard to oxygenation during one-lung ventilation for thoracoscopic surgery. METHODS: Adult patients with lung cancer, scheduled for video-assisted thoracoscopic lobectomy without preoperative oxygen support, were screened and randomized to receive desflurane or propofol, with remifentanil continuous infusion in both groups...
January 18, 2017: BMC Anesthesiology
https://www.readbyqxmd.com/read/28097611/assessing-nitrous-oxide-effect-using-electroencephalographically-based-depth-of-anesthesia-measures-cortical-state-and-cortical-input
#12
Levin Kuhlmann, David T J Liley
Existing electroencephalography (EEG) based depth of anesthesia monitors cannot reliably track sedative or anesthetic states during n-methyl-D-aspartate (NMDA) receptor antagonist based anesthesia with ketamine or nitrous oxide (N2O). Here, a physiologically-motivated depth of anesthesia monitoring algorithm based on autoregressive-moving-average (ARMA) modeling and derivative measures of interest, Cortical State (CS) and Cortical Input (CI), is retrospectively applied in an exploratory manner to the NMDA receptor antagonist N2O, an adjuvant anesthetic gas used in clinical practice...
January 17, 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/28096575/the-effect-of-epidural-dexmedetomidine-on-oxygenation-and-shunt-fraction-in-patients-undergoing-thoracotomy-and-one-lung-ventilation-a-randomized-controlled-study
#13
Prachi Kar, Padmaja Durga, Ramachandran Gopinath
BACKGROUND AND AIMS: Role of epidural dexmedetomidine in providing analgesia is well documented, but its effect on oxygenation and shunt fraction is not well established. We studied the hypothesis that epidural dexmedetomidine may improve oxygenation and shunt fraction during one-lung ventilation (OLV). MATERIAL AND METHODS: After taking Institutional Ethics Committee approval, sixty patients undergoing thoracotomy and OLV were randomized to receive epidural ropivacaine with saline (RS group) or epidural ropivacaine with dexmedetomidine (RD group)...
October 2016: Journal of Anaesthesiology, Clinical Pharmacology
https://www.readbyqxmd.com/read/28092273/in-vivo-testing-of-extracorporeal-membrane-ventilators-ila-activve%C3%A2-vs-prototype-i-lung%C3%A2
#14
Sabine Kischkel, Stefan Bergt, Beate Brock, Johan von Grönheim, Anne Herbst, Marc-Jonas Epping, Georg Matheis, Esther Novosel, Joerg Schneider, Philipp Warnke, Andreas Podbielski, Jan P Roesner, Peter I Lelkes, Brigitte Vollmar
A side-by-side comparison of the decarboxylation efficacy of two pump-driven veno-venous extracorporeal lung assist devices, i.e. a first prototype of the new miniaturized ambulatory extracorporeal membrane ventilator, I-lung® versus the commercial system iLA-activve® over a period of 72 hours in a large animal model.Fifteen German Landrace pigs were anesthetized and underwent mechanical hypoventilation to induce severe hypercapnia. Decarboxylation was accomplished by either the I-lung® or the iLA-activve® via a double lumen catheter in the jugular vein...
January 4, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28065636/neuroprotection-and-neurotoxicity-in-the-developing-brain-an-update-on-the-effects-of-dexmedetomidine-and-xenon
#15
Azeem Alam, Ka Chun Suen, Zac Hana, Robert D Sanders, Mervyn Maze, Daqing Ma
Growing and consistent preclinical evidence, combined with early clinical epidemiological observations, suggest potentially neurotoxic effects of commonly used anesthetic agents in the developing brain. This has prompted the FDA to issue a safety warning for all sedatives and anesthetics approved for use in children under three years of age. Recent studies have identified dexmedetomidine, the potent α2-adrenoceptor agonist, and xenon, the noble gas, as effective anesthetic adjuvants that are both less neurotoxic to the developing brain, and also possess neuroprotective properties in neonatal and other settings of acute ongoing neurologic injury...
January 5, 2017: Neurotoxicology and Teratology
https://www.readbyqxmd.com/read/28057819/a-new-method-to-evaluate-macaque-health-using-exhaled-breath-a-case-study-of-m-tuberculosis-in-a-bsl-3-setting
#16
Theodore R Mellors, Lionel Blanchet, JoAnne L Flynn, Jaime Tomko, Melanie O'Malley, Charles A Scanga, Philana L Lin, Jane E Hill
Breath is hypothesized to contain clinically relevant information, useful for the diagnosis and monitoring of disease, as well as understanding underlying pathogenesis. Non-human primates, such as the cynomolgus macaque, serve as an important model for the study of human disease, including over 70 different human infections. In this feasibility study, exhaled breath was successfully collected in less than five minutes under Biosafety Level 3 conditions from five anesthetized, intubated cynomolgus and rhesus macaques, before and after lung infection with M...
January 5, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28049865/adherence-of-volatile-propofol-to-various-types-of-plastic-tubing
#17
F Maurer, D J Lorenz, G Pielsticker, T Volk, D I Sessler, J I Baumbach, S Kreuer
Propofol is an intravenous anesthetic. Currently, it is not possible to routinely measure blood concentration of the drug in real time. However, multi-capillary column ion-mobility spectrometry of exhaled gas can estimate blood propofol concentration. Unfortunately, adhesion of volatile propofol on plastic materials complicates measurements. Therefore, it is necessary to consider the extent to which volatile propofol adheres to various plastics used in sampling tubing. Perfluoralkoxy (PFA), polytetrafluorethylene (PTFE), polyurethane (PUR), silicone, and Tygon tubing were investigated in an experimental setting using a calibration gas generator (HovaCAL)...
January 23, 2017: Journal of Breath Research
https://www.readbyqxmd.com/read/28033203/outcomes-of-extracorporeal-life-support-during-surgery-for-the-critical-airway-stenosis
#18
Seon Hee Kim, Seunghwan Song, Yeong Dae Kim, Hoseok I, Jeong Su Cho, Hyo Yeong Ahn, Jonggeun Lee, Do Hyung Kim, Bong Soo Son
Anesthetic management of critical airway stenosis is often very challenging. Extracorporeal membrane oxygenation (ECMO) may provide adequate respiratory support when conventional approaches fail. We report our experience of ECMO support for critical airway surgery. Between April 2012 and March 2015, nine patients underwent ECMO-supported airway operation. The reason for surgery was tracheal stenosis in nine patients, and tracheomalacia, tracheal tumor, and external tracheal compression by mediastinal mass in one patient each...
January 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28032570/hypokalemia-during-acute-metabolic-acidosis-on-hemodilution-with-succinylated-gelatin-in-rats
#19
Johanna K Teloh, Ricarda Rohrig, Indra N Waack, Herbert de Groot
BACKGROUND: Extracellular metabolic acidosis of mineral origin is commonly associated with plasma hyperkalemia. Nevertheless, in previous experiments, animals subjected to acute metabolic acidosis induced by normovolemic hemodilution using a colloidal volume replacement solution containing succinylated gelatin (gelafundin), developed a hypokalemic state with concomitant marked increases in diuresis and renal potassium excretion. In the present study, the succinylated gelatin's impact on diuresis and consequently potassium excretion was studied...
October 4, 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27998860/-anesthetic-effect-and-safety-of-ultrasound-guided-thoracic-paravertebral-blockade-in-sympathectomy-for-palmar-hyperhidrosis-a-randomized-controlled-trial
#20
Jin-Dong Xu, Li-Na Yu, Da-Qiang Zhao, Liang Xie, Hai-Yu Zhou, Sheng Wang
OBJECTIVE: To explore the anesthetic effect and safety of ultrasound-guided thoracic paravertebral blockade in video-assisted thoracoscopic sympathectomy for treatment of palmar hyperhidrosis. METHODS: A total of 120 patients undergoing video-assisted thoracoscopic sympathectomy for moderate or severe hyperhidrosis were randomized to receive ultrasound-guided thoracic paravertebral blockade (group A, n=60) or general anesthesia with tracheal intubation (group B, n=60)...
December 20, 2016: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
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