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Anesthesia basics

Fauzia A Khan, Alan F Merry
The safety of anesthesia characteristic of high-income countries today is not matched in low-resource settings with poor infrastructure, shortages of anesthesia providers, essential drugs, equipment, and supplies. Health care is delivered through complex systems. Achieving sustainable widespread improvement globally will require an understanding of how to influence such systems. Health outcomes depend not only on a country's income, but also on how resources are allocated, and both vary substantially, between and within countries...
April 2018: Anesthesia and Analgesia
Maximilian Bielohuby, Martin Bidlingmaier, Uwe Schwahn
The measurement of circulating hormones by immunoassay remains a cornerstone in preclinical endocrine research. For scientists conducting and interpreting immunoassay measurements of rodent samples, the paramount aim usually is to obtain reliable and meaningful measurement data in order to draw conclusions on biological processes. However, the biological variability between samples is not the only variable affecting the readout of an immunoassay measurement and a considerable amount of unwanted or unintended variability can be quickly introduced during the pre-analytical and analytical phase...
March 14, 2018: Endocrine Connections
B J Wang, C Guo, C J Li, D L Mu
OBJECTIVE: To investigate the incidence of peri-anesthesia allergy in a tertiary teaching hospital. METHODS: This was a retrospective cohort study. Patients who received anesthesia in operation rooms at Peking University First Hospital from January 2012 to April 2017 were enrolled. Researchers reviewed all the patients' electronic records and screened suspect allergy cases. Allergy was diagnosed according to the definition in Consensus on Management of Perioperative Allergy (China) and Scandinavian Clinical Practice Guidelines on the Diagnosis, Management and Follow-up of Anaphylaxis during Anesthesia...
February 18, 2018: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Alireza Jalali, Ebrahim Nasiri, Mohsen Khoramian, Masood Saghafinia, Hasan Siamian
Introduction: Laryngoscopy and tracheal intubation are known to increase sympathetic activity that may be detrimental to patients with preexisting ischaemic or hypertensive heart disease. Aim: The aim of this study was to compare of intravenous and oropharyngeal spray of lidocaine and high dose of fentanyl on systolic and diastolic blood pressures and heart rate of patients over 65 years during tracheal intubation. Material and Methods: In this clinical trial, 160 patients over 65 yrs who were randomly divided into five groups of 32 patients...
December 2017: Medical Archives
Paul Muhle, Inga Claus, Thomas Marian, Jens B Schröder, Andreas Wollbrink, Christo Pantev, Tobias Warnecke, Rainer Dziewas, Sonja Suntrup-Krueger
BACKGROUND/AIMS: Performing neurophysiological and functional imaging studies in severely affected patients to investigate novel neurostimulation techniques for the treatment of neurogenic dysphagia is difficult. Therefore, basic research needs to be conducted in healthy subjects. Swallowing is a motor function highly dependent on sensory afferent input. Here we propose a virtual peripheral sensory lesion model to mimic pharyngeal sensory impairment, which is known as a major contributor to dysphagia in neurological disease...
January 25, 2018: Neuro-Signals
Stephen C Hanley, Oren Steinmetz, Eva S Mathieu, Daniel Obrand, Kent Mackenzie, Marc-Michel Corriveau, Cherrie Z Abraham, Heather L Gill
OBJECTIVE: The adoption of endovascular aneurysm repair (EVAR) during the past two decades has led to significantly shorter length of stay as well as lower hospital resource use. Currently, most patients are admitted to the hospital after EVAR; however, there are no standard observation periods, and timing of discharge is based on clinical judgment. The aim of this study was to confirm the safety and feasibility of performing EVAR as outpatient surgery. METHODS: We developed criteria to identify patients for potential same-day discharge (infrarenal aneurysm, low perioperative risk, to be accompanied for first 24 hours)...
January 31, 2018: Journal of Vascular Surgery
Kimiyasu Shiraki, Nozomu Toyama, Atsuko Shiraki, Misako Yajima
BACKGROUND: Varicella-zoster virus causes herpes zoster (HZ) along specific dermatomes, but the effects of age and sex on HZ distribution are unclear. OBJECTIVE: We investigated the age- and sex-dependent distribution characteristics of HZ. METHODS: Patients with HZ were monitored by members of the Miyazaki Dermatologist Society. Questionnaires containing information on age, sex, and dermatome distribution and lesion specimens from 2730 patients were collected, and 2508 PCR-diagnosed cases were analyzed...
January 31, 2018: Journal of Dermatological Science
Andria Pelentritou, Levin Kuhlmann, John Cormack, Will Woods, Jamie Sleigh, David Liley
Anesthesia arguably provides one of the only systematic ways to study the neural correlates of global consciousness/unconsciousness. However to date most neuroimaging or neurophysiological investigations in humans have been confined to the study of γ-Amino-Butyric-Acid-(GABA)-receptor-agonist-based anesthetics, while the effects of dissociative N-Methyl-D-Aspartate-(NMDA)-receptor-antagonist-based anesthetics ketamine, nitrous oxide (N2O) and xenon (Xe) are largely unknown. This paper describes the methods underlying the simultaneous recording of magnetoencephalography (MEG) and electroencephalography (EEG) from healthy males during inhalation of the gaseous anesthetic agents N2O and Xe...
January 13, 2018: Journal of Visualized Experiments: JoVE
Massimiliano Meineri, Gregory L Bryson, Ramiro Arellano, Nikolaos Skubas
Point-of-care ultrasound (POCUS) is becoming an integral part of anesthesia practice throughout the world. Despite the growing interest in POCUS among trainees and faculty, POCUS training is variable among universities across Canada. This suggests a need for curriculum development and standardization. International guidelines for Emergency Medicine and Critical Care have common frameworks and may be used as a reference to model anesthesia-specific curricula. The Royal College of Anaesthetists of the United Kingdom currently offers the only nationally approved POCUS curriculum for anesthesia and critical care trainees...
January 16, 2018: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
Ya Hong Gong, Wei Jia Wang, Wei Wei, Yu Guang Huang
Objective To identify factors influencing regional cerebral oxygen saturation (rScO2 ) during one-lung ventilation (OLV) in thoracic surgery. Methods Totally 33 patients with an ASA physical status of 1-3 scheduled for elective thoracic surgery with one-lung ventilation under general anesthesia were recruited. After anesthesia was induced with propofol,fentanyl/sufentanil,and rocuronium. All patients received balanced anesthesia using sevoflurane. During OLV,volume-controlled ventilation was used with a tidal volume of 6-7 ml/kg and an inspiration:expiration ratio of 1:1...
December 20, 2017: Zhongguo Yi Xue Ke Xue Yuan Xue Bao. Acta Academiae Medicinae Sinicae
Lars Petter Bjørnsen, Andrea Marie Solheim, Oddvar Uleberg, Eirik Skogvoll
OBJECTIVE: The "National Standard Requirements for Helicopter Emergency Medicine Services Physicians" gives recommendations on medical requirements for flight physicians. This study describes the level of formal competence, experience, and guideline compliance of Norwegian helicopter emergency medical service (HEMS) physicians. METHODS: In May 2013, all HEMS physicians with full-time engagement at Norwegian HEMS bases were invited to participate in a cross-sectional survey using a structured, Web-based questionnaire...
January 2018: Air Medical Journal
Tsai-Sheng Fu, Yun-Da Li
OBJECTIVE For symptomatic loosened pedicle screws and instrumentation-associated vertebral fracture, extensive surgery to remove the pedicle screws and extend the instrumentation, along with the reinsertion of more pedicle screws, is usually the treatment of choice. After such a surgery, however, similar complications will still be encountered. In this study the authors propose minimally invasive percutaneous cement augmentation under fluoroscopic guidance as a salvage procedure that eliminates the inherent risks of conventional extensive surgery...
January 12, 2018: Journal of Neurosurgery. Spine
Jeron Zerillo, Bryan Hill, Sang Kim, Samuel DeMaria, M Susan Mandell
STUDY OBJECTIVE: Describe transesophageal echocardiography (TEE) use, preparatory training and opinions about clinical importance, and future training pathways in a sample of liver transplant anesthesiologists. DESIGN: Online survey questionnaire. SETTING: Liver Transplant Centers in the United States. PARTICIPANTS: Director of Liver Transplant Anesthesia or designated alternate respondent. RESULTS: A total of 79 Directors or alternates from 111 (71%) centers were identified...
January 1, 2018: Seminars in Cardiothoracic and Vascular Anesthesia
Joho Yun, Jinhwan Kim, Jong-Hyun Lee
We have introduced a fabrication method for electrical impedance spectroscopy (EIS)-on-a-needle (EoN: EIS-on-a-needle) to locate target tissues in the body by measuring and analyzing differences in the electrical impedance between dissimilar biotissues. This paper describes the fabrication method of fine interdigitated electrodes (IDEs) at the tip of a hypodermic needle using a photoresist spray coating and flexible film photomask in the photolithography process. A polyethylene terephthalate (PET) heat shrink tube (HST) with a wall thickness of 25 µm is employed as the insulation and passivation layer...
November 28, 2017: Journal of Visualized Experiments: JoVE
Akshaya N Shetti, Shivanand L Karigar, Rachita G Mustilwar, D Roshan Singh, Kusha Nag
It is not uncommon to see in developing and underdeveloped countries, where the anesthesiologist who is untrained in cardiac specialty takes care of cardiac catheterization centers. The service in cardiac catheterization laboratories (CCL) in developed countries and some of the developing countries is mainly provided by the cardiac anesthesiologists. The scenario is not same in some part of developing countries or in underdeveloped countries which are mainly due to increase in number of CCL (catheterization laboratory) when compared to the number of cardiac anesthesiologists working outside the operation theater...
October 2017: Anesthesia, Essays and Researches
Getúlio Rodrigues de Oliveira Filho, Francisco de Assis Caire Mettrau
BACKGROUND: Proficiency in needle-to-ultrasound beam alignment and accurate approach to structures are pivotal for ultrasound-guided regional anesthesia. This study evaluated the effects of high-frequency, structured expert feedback on simulation training of such abilities. METHODS: Forty-two subjects randomly allocated as controls or intervention participated in two 25-trial experiments. Experiment 1 consisted of inserting a needle into a bovine muscular phantom parallel to the ultrasound beam while maintaining full imaging of the needle...
December 19, 2017: Anesthesia and Analgesia
Janny Xue Chen Ke
No abstract text is available yet for this article.
December 12, 2017: Canadian Journal of Anaesthesia, Journal Canadien D'anesthésie
Jordan B Simpson, Vijai S Thomas, Sabir K Ismaily, Pavel I Muradov, Philip C Noble, Stephen J Incavo
BACKGROUND: Total joint patients are particularly vulnerable to perioperative hypothermia (PH) (combined effects of anesthesia, radiation, and convective heat loss from exposed skin surfaces and cool temperatures in the operating room). There are limited studies on PH in these patients. METHODS: In a retrospective review of 204 patients undergoing primary hip and 179 undergoing primary knee replacement surgeries, time and temperature parameters were collected from the electronic health records from preoperative and postoperative recovery room nursing assessments, intraoperative anesthesia records, and floor nursing notes...
November 8, 2017: Journal of Arthroplasty
Philipp Lirk, Markus W Hollmann, Gary Strichartz
Local anesthetics have been used clinically for more than a century, but new insights into their mechanisms of action and their interaction with biological systems continue to surprise researchers and clinicians alike. Next to their classic action on voltage-gated sodium channels, local anesthetics interact with calcium, potassium, and hyperpolarization-gated ion channels, ligand-gated channels, and G protein-coupled receptors. They activate numerous downstream pathways in neurons, and affect the structure and function of many types of membranes...
April 2018: Anesthesia and Analgesia
Patrick Schober, Sebastiaan M Bossers, Phi-Vu Dong, Christa Boer, Lothar A Schwarte
Background: Statistical methods form the basis for clinical decision-making in evidence-based anesthesia. Data on the knowledge of anesthesiologists about statistics are lacking. This pilot study aims to provide a first impression of the anesthesiologists' understanding of commonly used concepts in statistics. Methods: A cross-sectional pilot survey was performed at a major international anesthesia conference. The questionnaire consisted of three basic multiple-choice questions on the topics "p value," "confidence interval," and "correlation...
2017: Anesthesiology Research and Practice
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