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Anaesthetics

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https://www.readbyqxmd.com/read/28214370/the-effect-of-pre-operative-submucosal-administration-of-tramadol-on-the-success-rate-of-inferior-alveolar-nerve-blocks-on-mandibular-molars-with-acute-irreversible-pulpitis-a-randomized-double-blind-clinical-trial
#1
A De Pedro-Muñoz, J Mena-Álvarez
AIM: This randomized, double-blind, placebo controlled, clinical trial was designed to improve the success of inferior alveolar nerve blocks (IANB) in mandibular molars with symptomatic irreversible pulpitis (SIP) by means of pre-operative submucosal administration of 50mg tramadol. METHODOLOGY: Forty-two patients with a mandibular molar diagnosed with symptomatic irreversible pulpitis took part in the trial. Patients were assigned randomly to one of two groups: tramadol group (n=21), who received 50mg tramadol in 1mL by mandibular infiltration, and a placebo group (n=21), who received 1 mL of normal saline administered to the affected tooth by the same means...
February 18, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28213155/high-frequency-stimulation-of-afferent-fibers-generates-asynchronous-firing-in-the-downstream-neurons-in-hippocampus-through-partial-block-of-axonal-conduction
#2
Zhouyan Feng, Zhaoxiang Wang, Zheshan Guo, Wenjie Zhou, Ziyan Cai, Dominique M Durand
Deep brain stimulation (DBS) is effective for treating neurological disorders in clinic. However, the therapeutic mechanisms of high-frequency stimulation (HFS) of DBS have not yet been elucidated. Previous studies have suggested that HFS-induced changes in axon conduction could have important contributions to the DBS effects and desiderate further studies. To investigate the effects of prolonged HFS of afferent axons on the firing of downstream neurons, HFS trains of 100 and 200 Hz were applied on the Schaffer collaterals of the hippocampal CA1 region in anaesthetized rats...
February 14, 2017: Brain Research
https://www.readbyqxmd.com/read/28212445/long-term-effects-of-fetal-undernutrition-on-rat-heart-role-of-hypertension-and-oxidative-stress
#3
Pilar Rodríguez-Rodríguez, Angel L López de Pablo, Concha F García-Prieto, Beatriz Somoza, Begoña Quintana-Villamandos, José J Gómez de Diego, Perla Y Gutierrez-Arzapalo, David Ramiro-Cortijo, M Carmen González, Silvia M Arribas
BACKGROUND AND AIMS: Fetal undernutrition is a risk factor for heart disease in both genders, despite the protection of women against hypertension development. Using a rat model of maternal undernutrition (MUN) we aimed to assess possible sex differences in the development of cardiac alterations and the implication of hypertension and cardiac oxidative stress. METHODS: Male and female offspring from rats fed ad libitum (control) or with 50% of the normal daily intake during the second half of gestation (MUN) were used...
2017: PloS One
https://www.readbyqxmd.com/read/28211640/complexation-of-oxethazaine-with-2-hydroxypropyl-%C3%AE-cyclodextrin-increased-drug-solubility-decreased-cytotoxicity-and-analgesia-at-inflamed-tissues
#4
Andressa R Prado, Fabiano Yokaichiya, Margareth Kazuyo Kobayashi Dias Franco, Camila Morais Gonçalves da Silva, Laura Oliveira-Nascimento, Michelle Franz-Montan, Maria C Volpato, Luís F Cabeça, Eneida de Paula
OBJECTIVES: Oxethazaine (OXZ) is one of the few local anaesthetics that provides analgesia at low pH, but presents poor solubility, cytotoxicity and no parenteral formulations. To address these issues, we aimed to prepare OXZ host-guest inclusion complex with hydroxypropyl-beta-cyclodextrin (HP-β-CD). METHODS: The inclusion complex was formed by co-solubilization, followed by a job plot analysis to determine stoichiometry of complexation and dialysis equilibrium analysis (based on UV/VIS absorption and fluorescence profiles of OXZ)...
February 17, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28210271/the-effect-of-obesity-and-increased-waist-circumference-on-the-outcome-of-laparoscopic-nephrectomy
#5
D B Hennessey, E M Bolton, A Z Thomas, R P Manecksha, T H Lynch
Introduction. The prevalence of obesity is increasing worldwide. Obesity can be determined by body mass index (BMI); however waist circumference (WC) is a better measure of central obesity. This study evaluates the outcome of laparoscopic nephrectomy on patients with an abnormal WC. Methods. A WC of >88 cm for women and >102 cm for men was defined as obese. Data collected included age, gender, American Society of Anaesthesiologists (ASA) score, renal function, anaesthetic duration, surgery duration, blood loss, complications, and duration of hospital stay...
2017: Advances in Urology
https://www.readbyqxmd.com/read/28208979/evaluation-of-the-efficacy-of-bupivacaine-0-5-alone-or-with-clonidine-1%C3%AE-g-kg-versus-control-in-a-single-level-paravertebral-blockin-patients-undergoing-pcnl-procedure
#6
Trupti S Kamble, Charulata Mahesh Deshpande
INTRODUCTION: Percutaneous Nephrolithotomy (PCNL) is a widely used procedure to remove complex upper tract renal calculi by means of a nephroscope. Although less invasive, PCNL is associated with significant pain owing to soft tissue injury. Most of these patients have mild to moderately compromised renal function. An anaesthesia plan that reduces intraoperative requirement of anaesthetics, analgesics, muscle relaxants and postoperative requirement of systemic analgesics is essential...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208976/dexamethasone-as-an-adjuvant-to-bupivacaine-in-supraclavicular-brachial-plexus-block-in-paediatrics-for-post-operative-analgesia
#7
Karl Sa Ribeiro, Anjali Ollapally, Julie Misquith
INTRODUCTION: Sensory blockade of the brachial plexus with local anaesthetics for perioperative analgesia leads to stable haemodynamics intraoperatively, smoother emergence from general anaesthesia and decreased need for supplemental analgesics or suppositories in the Post-operative period. However, increasing the duration of local anaesthetic action is often desirable because it prolongs surgical anaesthesia and analgesia. Various studies in adults prove that steroids increase the duration of action of local anaesthetics when used as adjuncts...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208971/a-rare-association-of-pentalogy-of-fallot-with-situs-inversus-totalis-complicated-by-brain-abscess-in-an-adolescent-case-report
#8
Muhammed Basheer, Sunil Kumar Agarwalla
Tetralogy of Fallot (TOF) is the most frequently diagnosed congenital cyanotic heart disease. It is often associated with additional findings, such as atrial septal defect (i.e., pentalogy of Fallot) or right sided aortic arch. Association of this pentalogy of Fallot with situs inversus totalis is rarely reported in paediatric literature and it can cause technical challenges to intracardiac repair. We report the case of pentalogy of Fallot with dextrocardia and situs inversus presenting as parieto-occipital abscess in a 12-year-old child...
December 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28208270/ceramic-based-multisite-platinum-microelectrode-arrays-morphological-characteristics-and-electrochemical-performance-for-extracellular-oxygen-measurements-in-brain-tissue
#9
Ana Ledo, Cátia F Lourenço, João Laranjinha, Christopher M A Brett, Greg A Gerhardt, Rui M Barbosa
Ceramic-based multisite Pt microelectrode arrays (MEAs) were characterized for their basic electrochemical characteristics and used for in vivo measurements of oxygen with high resolution in the brain extracellular space. The microelectrode array sites showed a very smooth surface mainly composed of thin-film polycrystalline Pt, with some apparent nanoscale roughness that was not translated into an increased electrochemical active surface area. The electrochemical cyclic voltammetric behavior was characteristic of bulk Pt in both acidic and neutral media...
February 7, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28203730/influence-of-head-and-neck-position-on-ventilation-using-the-air-q%C3%A2-sp-airway-in-anaesthetized-paralysed-patients-a-prospective-randomized-crossover-study
#10
H J Kim, K Lee, S Bai, M H Kim, E Oh, Y C Yoo
No abstract text is available yet for this article.
March 1, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28203025/-trigemino-cardiac-reflex-in-skull-base-surgery
#11
H Z Duan, Y Zhang, L Li, J Y Zhang, Z Q Yi, S D Bao
OBJECTIVE: To explore the mechanism, clinical features, and prognosis of Trigemino-cardiac reflex (TCR) during skull base operations. METHODS: A retrospective analysis was performed on 291 patients with skull base disease from Jan. 2009 to Oct. 2015 in Peking University First Hospital. By reviewing the patients' operative data and anaesthetic electrical record, and we picked out all the patients who suffered from TCR during the operation and analyzed their surgical procedures, clinical features, influence factors, and prognosis...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28198170/antibacterial-effect-of-sevoflurane-and-isoflurane
#12
M Martínez-Serrano, M Gerónimo-Pardo, A Martínez-Monsalve, M D Crespo-Sánchez
OBJECTIVE: Multidrug resistant bacteria are increasing worldwide and therapeutic options are limited. Some anaesthetics have shown antibacterial activity before. In this study, we have investigated the antibacterial effect of the halogenated anaesthetic agents sevoflurane and isoflurane against a range of resistant pathogens. METHODS: Two experiments were conducted. In the first, bacterial suspensions of both ATCC and resistant strains of Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa were exposed to liquid sevoflurane and isoflurane during 15, 30 and 60 minutes...
February 15, 2017: Revista Española de Quimioterapia: Publicación Oficial de la Sociedad Española de Quimioterapia
https://www.readbyqxmd.com/read/28190788/a-comparison-of-cardiopulmonary-effects-and-anaesthetic-requirements-of-two-dexmedetomidine-continuous-rate-infusions-in-alfaxalone-anaesthetized-greyhounds
#13
Setefilla Quirós-Carmona, Rocío Navarrete, Juan M Domínguez, María Del Mar Granados, Rafael J Gómez-Villamandos, Pilar Muñoz-Rascón, Daniel Aguilar, Francisco J Funes, Juan Morgaz
OBJECTIVE: To determine the effects of two dexmedetomidine continuous rate infusions on the minimum infusion rate of alfaxalone for total intravenous anaesthesia (TIVA), and subsequent haemodynamic and recovery effects in Greyhounds undergoing laparoscopic ovariohysterectomy. STUDY DESIGN: Prospective, randomized and blinded clinical study. ANIMALS: Twenty-four female Greyhounds. METHODS: Dogs were premedicated with dexmedetomidine 3 μg kg(-1) and methadone 0...
January 11, 2017: Veterinary Anaesthesia and Analgesia
https://www.readbyqxmd.com/read/28188621/the-analgesic-efficacy-of-pre-operative-bilateral-erector-spinae-plane-esp-blocks-in-patients-having-ventral-hernia-repair
#14
K J Chin, S Adhikary, N Sarwani, M Forero
Laparoscopic ventral hernia repair is an operation associated with significant postoperative pain, and regional anaesthetic techniques are of potential benefit. The erector spinae plane (ESP) block performed at the level of the T5 transverse process has recently been described for thoracic surgery, and we hypothesised that performing the ESP block at a lower vertebral level would provide effective abdominal analgesia. We performed pre-operative bilateral ESP blocks with 20-30 ml ropivacaine 0.5% at the level of the T7 transverse process in four patients undergoing laparoscopic ventral hernia repair...
February 11, 2017: Anaesthesia
https://www.readbyqxmd.com/read/28187154/comparison-of-different-inspiratory-triggering-settings-in-automated-ventilators-during-cardiopulmonary-resuscitation-in-a-porcine-model
#15
Dingyu Tan, Jun Xu, Shihuan Shao, Yangyang Fu, Feng Sun, Yazhi Zhang, Yingying Hu, Joseph Walline, Huadong Zhu, Xuezhong Yu
BACKGROUND: Mechanical ventilation via automated in-hospital ventilators is quite common during cardiopulmonary resuscitation. It is not known whether different inspiratory triggering sensitivity settings of ordinary ventilators have different effects on actual ventilation, gas exchange and hemodynamics during resuscitation. METHODS: 18 pigs enrolled in this study were anaesthetized and intubated. Continuous chest compressions and mechanical ventilation (volume-controlled mode, 100% O2, respiratory rate 10/min, and tidal volumes 10ml/kg) were performed after 3 minutes of ventricular fibrillation...
2017: PloS One
https://www.readbyqxmd.com/read/28186425/influence-of-two-administration-rates-of-propofol-at-induction-of-anaesthesia-on-its-relative-potency-in-cats-a-pilot-study
#16
Sébastien H Bauquier, Wendy Bayldon, Leon N Warne, Jennifer E Carter, Thierry Beths
Objectives This was a randomised, blinded trial to investigate the influence of administration rate on the dose of propofol required for the orotracheal intubation of cats. Methods Twenty-four female domestic cats undergoing ovariohysterectomy were premedicated with oral tramadol (6 mg/kg) or intramuscular tramadol (4 mg/kg), and intramuscular dexmedetomidine (0.007 mg/kg). Oral or intramuscular (IM) tramadol was administered 60 or 30 mins prior to induction of anaesthesia, respectively. Dexmedetomidine was administered 30 mins prior to anaesthetic induction...
February 1, 2017: Journal of Feline Medicine and Surgery
https://www.readbyqxmd.com/read/28185260/a-comparison-of-sugammadex-and-neostigmine-for-reversal-of-rocuronium-induced-neuromuscular-blockade-in-children
#17
A S Ammar, K M Mahmoud, Z A Kasemy
BACKGROUND: Sugammadex is designed to be a reversal agent for steroidal muscle relaxants. The current trial was aimed to compare between sugammadex and neostigmine concerning the recovery time from neuromuscular blockade. We hypothesised that sugammadex might have shorter recovery time than neostigmine. METHODS: Sixty paediatric patients aged 2-10 years scheduled for lower abdominal surgeries were randomly assigned into two equal groups to receive 4 mg/kg sugammadex (Group S) or 0...
February 10, 2017: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/28182749/lack-of-desensitization-of-the-cough-reflex-in-ovalbumin-sensitized-rabbits-during-exercise
#18
Angelica Tiotiu, Bruno Chenuel, Laurent Foucaud, Bruno Demoulin, Silvia Demoulin-Alexikova, Christo Christov, Mathias Poussel
INTRODUCTION: Cough is a major symptom of asthma frequently experienced during exercise but little is known about interactions between cough and exercise. The goal of our study was to clarify the potential modulation of the cough reflex (CR) by exercise in a spontaneously breathing anaesthetized animal model of airway eosinophilic inflammation. MATERIALS & METHODS: Ten ovalbumin (OVA) sensitized adult rabbits and 8 controls were studied. The ventilatory response to direct tracheal stimulation, performed both at rest and during exercise was determined to quantify the incidence and the sensitivity of the CR...
2017: PloS One
https://www.readbyqxmd.com/read/28174153/a-prospective-randomised-double-masked-comparison-of-local-anaesthetic-agents-for-vitrectomy
#19
Ya-Li Zhou, Yao Tong, Yi-Xiao Wang, Pei-Quan Zhao, Zhao-Yang Wang
PURPOSE: To compare the intraoperative and postoperative clinical properties of 1% ropivacaine, 0.75% bupivacaine, 2% lidocaine and a mixture of 0.75% bupivacaine and 2% lidocaine (bupi+lido) administered for peribulbar anaesthesia during vitrectomy. METHODS: A total of 140 patients were randomly allocated to four groups. The time of onset of analgesia and akinesia was measured. The efficacy of anaesthesia, degree of postoperative pain and intraoperative and postoperative complications were recorded...
February 7, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/28173712/incidence-and-risk-factors-of-postoperative-sore-throat-after-endotracheal-intubation-in-korean-patients
#20
Jin Young Lee, Woo Seog Sim, Eun Sung Kim, Sangmin M Lee, Duk Kyung Kim, Yu Ri Na, Dahye Park, Hue Jung Park
Objective To investigate the incidence of postoperative sore throat (POST) in Korean patients undergoing general anaesthesia with endotracheal intubation and to assess potential risk factors. Methods This prospective study enrolled patients who underwent all types of elective surgical procedures with endotracheal intubation and general anaesthesia. The patients were categorized into group S (those with a POST) or group N (those without a POST). The demographic, clinical and anaesthetic characteristics of each group were compared...
January 1, 2017: Journal of International Medical Research
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