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https://www.readbyqxmd.com/read/29756058/pupillary-dilation-reflex-and-pupillary-pain-index-evaluation-during-general-anaesthesia-a-pilot-study
#1
Davina Wildemeersch, Michiel Baeten, Natasja Peeters, Vera Saldien, Marcel Vercauteren, Guy Hans
Background: Pupillary response by pupillary dilatation reflex (PDR) is a robust reflex, even measurable during general anaesthesia. However, the ability of infrared pupillometry to detect PDR differences obtained by intraoperative opioid administration in anaesthesized patients remains largely unknown. We analyzed the performance of automated infrared pupillometry in detecting differences in pupillary dilatation reflex response by a inbuilt standardized nociceptive stimulation program in patients under general anesthesia with a standardized propofol/fentanyl scheme...
April 2018: Romanian Journal of Anaesthesia and Intensive Care
https://www.readbyqxmd.com/read/29671874/pain-assessment-by-pupil-dilation-reflex-in-response-to-noxious-stimulation-in-anaesthetized-adults
#2
D Wildemeersch, N Peeters, V Saldien, M Vercauteren, G Hans
BACKGROUND: In response to noxious stimulation, pupillary dilation reflex (PDR) occurs even in anaesthetized patients. The aim of the study was to evaluate the ability of pupillometry with an automated increasing stimulus intensity to monitor intraoperative opioid administration. METHODS: Thirty-four patients undergoing elective surgery were enrolled. Induction by propofol anaesthesia was increased progressively until the sedation depth criteria (SeD) were attained...
April 19, 2018: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/29643549/low-flow-anaesthesia-underused-mode-towards-sustainable-anaesthesia
#3
REVIEW
Madhusudan Upadya, P J Saneesh
Any technique that employs a fresh gas flow that is less than the alveolar ventilation can be classified as low-flow anaesthesia. The complexities involved in the calculation of uptake of anaesthetic agents during the closed-circuit anaesthesia made this technique less popular. However, the awareness of the dangers of theatre pollution with trace amounts of the anaesthetic agents and the prohibitively high cost of the new inhalational agents, have helped in the rediscovery of low-flow anaesthesia. Moreover, the time has arrived for each of us, the practicing anaesthesiologists, to move towards the practice of low-flow anaesthesia, to achieve lesser theatre and environmental pollution and also to make anaesthesia more economical...
March 2018: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/29373334/comparison-of-double-intravenous-vasopressor-automated-system-using-nexfin-versus-manual-vasopressor-bolus-administration-for-maintenance-of-haemodynamic-stability-during-spinal-anaesthesia-for-caesarean-delivery-a-randomised-double-blind-controlled-trial
#4
Ban Leong Sng, Wei Du, Man Xin Lee, Farida Ithnin, Deepak Mathur, Wan Ling Leong, Rehena Sultana, Nian-Lin R Han, Alex Tiong Heng Sia
BACKGROUND: Hypotension is a common side effect of spinal anaesthesia during caesarean delivery and is associated with maternal and foetal adverse effects. We developed an updated double intravenous vasopressor automated (DIVA) system that administers phenylephrine or ephedrine based on continuous noninvasive haemodynamic monitoring using the Nexfin device. OBJECTIVE: The aim of our present study is to compare the performance and reliability of the DIVA system against Manual Vasopressor Bolus administration...
May 2018: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29210845/does-a-hypnosis-session-reduce-the-required-propofol-dose-during-closed-loop-anaesthesia-induction-a-randomised-controlled-trial
#5
Aurélien Bataille, Avit Guirimand, Barbara Szekely, Mireille Michel-Cherqui, Virginie Dumans, Ngai Liu, Thierry Chazot, Marc Fischler, Morgan Le Guen
BACKGROUND: Hypnosis has a positive effect on peri-operative anxiety and pain. OBJECTIVE: The objective of this study was to assess the impact of a formal deep hypnosis session on the consumption of propofol for anaesthetic induction using automated administration of propofol guided by the bispectral index (BIS) in a closed loop. DESIGN: A 1 : 1 randomised, usual-care-controlled, single-centre trial. SETTING: Tertiary care centre in France from April 2014 to December 2015...
November 27, 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/29136561/calibrated-automated-thrombogram-values-in-infants-with-cardiac-surgery-before-and-after-cardiopulmonary-bypass
#6
Alessandra Rizza, Giovina Di Felice, Rosa Luciano, Ottavia Porzio, Ombretta Panizzon, Maurizio Muraca, Paola Cogo
INTRODUCTION: Impaired thrombin generation has been associated to increase bleeding after cardiac surgery with cardiopulmonary bypass (CPB), especially in children. The aim of this study was to evaluate standard coagulation assay, thrombin generation by calibrated automated thrombogram (CAT), thromboelastography (TEG) and procoagulant phospholipids (PPL) activity in infants undergoing cardiac surgery with CPB. MATERIALS AND METHODS: Prospective observational study performed in children aged <24months undergoing cardiac surgery with CPB...
December 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28970631/cardiomyopathies-and-anaesthesia
#7
REVIEW
Rajiv Juneja, Prajeesh M Nambiar
Cardiomyopathy is considered as a heart muscle disease of multiple aetiologies, unlike other cardiac diseases related to a definitive pathophysiology. With more and more research and with the advent of genetic analysis pin pointing the disease causing mutations, causative factors have been defined and classifications and definitions have changed over time. Patients with these conditions present to anaesthesiologists in elective and emergency situations, placement of automated internal cardioverter defibrillator (AICD) devices or biventricular pacing but may also be diagnosed at anaesthetic pre-assessment...
September 2017: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/28574663/a-novel-method-for-treatment-of-chronic-anal-fissure-adipose-derived-regenerative-cells-a-pilot-study
#8
K Andjelkov, M Sforza, G Barisic, I Soldatovic, A Hiranyakas, Z Krivokapic
AIM: The purpose of this study was to investigate the safety and feasibility of autologous adipose-derived regenerative cells (ADRC) in the treatment of chronic anal fissure. METHOD: A prospective pilot study was conducted in six patients with chronic anal fissures at the First Surgical Clinic, Clinical Center of Serbia and at the BelPrime Clinic, Belgrade, Serbia. All patients were candidates for surgical treatment. The average duration of symptoms was 24 months...
June 2017: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/28495814/automated-control-of-mechanical-ventilation-during-general-anaesthesia-study-protocol-of-a-bicentric-observational-study-avas
#9
MULTICENTER STUDY
Dirk Schädler, Georg Miestinger, Tobias Becher, Inéz Frerichs, Norbert Weiler, Christoph Hörmann
INTRODUCTION: Automated control of mechanical ventilation during general anaesthesia is not common. A novel system for automated control of most of the ventilator settings was designed and is available on an anaesthesia machine. METHODS AND ANALYSIS: The 'Automated control of mechanical ventilation during general anesthesia study' (AVAS) is an international investigator-initiated bicentric observational study designed to examine safety and efficacy of the system during general anaesthesia...
May 10, 2017: BMJ Open
https://www.readbyqxmd.com/read/28277383/the-use-of-vasopressors-during-spinal-anaesthesia-for-caesarean-section
#10
REVIEW
Warwick D Ngan Kee
PURPOSE OF REVIEW: Hypotension remains one of the most researched subjects in obstetric anaesthesia. The purpose of this study is to review the most recent published articles on the use of vasopressors during spinal anaesthesia for caesarean section. RECENT FINDINGS: Despite continued research indicating advantages of phenylephrine over ephedrine, practitioners in some countries continue to favour ephedrine. Recent research has continued to compare the two drugs with some work emerging on high-risk patients...
June 2017: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/28095847/the-biomedical-piglet-establishing-reference-intervals-for-haematology-and-clinical-chemistry-parameters-of-two-age-groups-with-and-without-iron-supplementation
#11
Domenico Ventrella, Francesco Dondi, Francesca Barone, Federica Serafini, Alberto Elmi, Massimo Giunti, Noemi Romagnoli, Monica Forni, Maria L Bacci
BACKGROUND: The similarities between swine and humans in physiological and genomic patterns, and the great correlation in size and anatomy, make pigs extremely useful in preclinical studies. New-born piglets can represent a model for congenital and genetic diseases in new-born children. It is known that piglets may have significant differences in clinicopathological results compared to adult pigs. Therefore, adult laboratory reference intervals cannot be applied to piglets. The aim of this study was to compare haematological and chemical variables in piglets of two ages and determinate age-related reference intervals for commercial hybrid young pigs...
January 17, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/27995430/eeg-artifacts-reduction-by-multivariate-empirical-mode-decomposition-and-multiscale-entropy-for-monitoring-depth-of-anaesthesia-during-surgery
#12
Quan Liu, Yi-Feng Chen, Shou-Zen Fan, Maysam F Abbod, Jiann-Shing Shieh
Electroencephalography (EEG) has been widely utilized to measure the depth of anaesthesia (DOA) during operation. However, the EEG signals are usually contaminated by artifacts which have a consequence on the measured DOA accuracy. In this study, an effective and useful filtering algorithm based on multivariate empirical mode decomposition and multiscale entropy (MSE) is proposed to measure DOA. Mean entropy of MSE is used as an index to find artifacts-free intrinsic mode functions. The effect of different levels of artifacts on the performances of the proposed filtering is analysed using simulated data...
August 2017: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/27797094/comparison-of-the-techniques-for-the-identification-of-the-epidural-space-using-the-loss-of-resistance-technique-or-an-automated-syringe-results-of-a-randomized-double-blind-study
#13
RANDOMIZED CONTROLLED TRIAL
Larysa Duniec, Piotr Nowakowski, Jakub Sieczko, Marcin Chlebus, Tomasz Łazowski
BACKGROUND: The conventional, loss of resistance technique for identification of the epidural space is highly dependent on the anaesthetist's personal experience and is susceptible to technical errors. Therefore, an alternative, automated technique was devised to overcome the drawbacks of the traditional method. The aim of the study was to compare the efficacy of epidural space identification and the complication rate between the two groups - the automatic syringe and conventional loss of resistance methods...
2016: Anaesthesiology Intensive Therapy
https://www.readbyqxmd.com/read/27583446/evaluation-of-using-behavioural-changes-to-assess-post-operative-pain-in-the-guinea-pig-cavia-porcellus
#14
Yvette Ellen, Paul Flecknell, Matt Leach
To manage pain effectively in people and animals, it is essential to recognise when pain is present and to assess its intensity. Currently there is very little information regarding the signs of post-surgical pain or its management in guinea pigs. Studies from other rodent species indicate that behaviour-based scoring systems can be used successfully to detect pain and evaluate analgesic efficacy. This preliminary study aimed to establish whether behaviour-based scoring systems could be developed to assess post-surgical pain in guinea pigs...
2016: PloS One
https://www.readbyqxmd.com/read/27565801/automated-double-cone-beam-ct-fusion-technique-enhanced-evaluation-of-glue-distribution-in-cases-of-spinal-dural-arteriovenous-fistula-sdavf-embolisation
#15
Giuseppe Faragò, V Caldiera, C Antozzi, A Bellino, A Innocenti, E Ciceri
OBJECTIVES: Spinal dural arteriovenous fistulas (SDAVFs) are acquired diseases that represent the majority of all arteriovenous spinal shunts, leading to progressive and disabling myelopathy. Treatment is focused on accurately disconnecting the fistula point. We present our experience with the double-cone-beam CT fusion technique successfully applied to evaluate treatment results in a series of SDAVFs. METHODS: Between November 2011 and December 2015 we performed double-DynaCT acquisition (pre- and post-embolisation) in 12 cases of SDAVF...
May 2017: European Radiology
https://www.readbyqxmd.com/read/27547957/use-of-advanced-technologies-across-the-wound-care-spectrum-prologue
#16
Robert S Kirsner, Marco Romanelli
The growing trends of ageing populations and increasing prevalence of diabetes have given rise to an expanding number of problematic acute and chronic wounds. Over the past two decades, the use of negative pressure wound therapy (NPWT) with and without instillation of topical wound solutions has expanded to include treatment of a large variety of wounds. Additionally, the use of NPWT specifically designed for use over closed surgical incisions has been associated with favourable results. The recent introduction of an automated epidermal harvesting system, which neither creates a donor site wound nor requires the use of a surgeon, operating room or anaesthesia, has facilitated the use of epidermal grafting...
September 2016: International Wound Journal
https://www.readbyqxmd.com/read/27543528/pilot-study-of-closed-loop-anaesthesia-for-liver-transplantation
#17
A Restoux, S Grassin-Delyle, N Liu, C Paugam-Burtz, J Mantz, M Le Guen
BACKGROUND: Automated titration of propofol and remifentanil guided by the bispectral index (BIS) has been used for numerous surgical procedures. Orthotopic liver transplantation (OLT) uniquely combines major changes in circulating volume, an anhepatic phase, and ischaemia-reperfusion syndrome. We assessed the behaviour of this automated controller during OLT. METHODS: Adult patients undergoing OLT were included in this pilot study. Consumption of propofol and remifentanil was calculated for each surgery period (dissection, anhepatic, and liver reperfusion phases)...
September 2016: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/27437227/study-of-twenty-one-cases-of-red-cell-exchange-in-a-tertiary-care-hospital-in-southern-india
#18
M Joshua Daniel, Prakash H Muddegowda, Chezhiansubash, Jyothi B Lingegowda, Niranjan Gopal, Krishna Prasad
INTRODUCTION: Red Cell Exchange (RCE) is removal of a patient's red blood cells while replacing with donor red blood cells either manually or using automated systems. RCE is beneficial in patients with Sickle Cell Disease (SCD) either during sickling crisis or prior to major surgical procedures to bring down the sickling percentage as high sickling percentage during prolonged anaesthesia may lead to vaso-occlusive crisis. It is also employed in patients infested with malaria and babesiosis where parasitic index remain high despite medical management...
May 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27312841/automated-continuous-and-non-invasive-assessment-of-pulse-pressure-variations-using-cnap-%C3%A2-system
#19
Matthieu Biais, Laurent Stecken, Aurélie Martin, Stéphanie Roullet, Alice Quinart, François Sztark
Non-invasive respiratory variations in arterial pulse pressure using infrared-plethysmography (PPVCNAP) are able to predict fluid responsiveness in mechanically ventilated patients. However, they cannot be continuously monitored. The present study evaluated a new algorithm allowing continuous measurements of PPVCNAP (PPVCNAPauto) (CNSystem, Graz, Austria). Thirty-five patients undergoing vascular surgery were studied after induction of general anaesthesia. Stroke volume was measured using the Vigileo(TM)/FloTrac(TM)...
August 2017: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/27071886/automated-data-aggregation-for-time-series-analysis-study-case-on-anaesthesia-data-warehouse
#20
Antoine Lamer, Mathieu Jeanne, Grégoire Ficheur, Romaric Marcilly
Data stored in operational databases are not reusable directly. Aggregation modules are necessary to facilitate secondary use. They decrease volume of data while increasing the number of available information. In this paper, we present four automated engines of aggregation, integrated into an anaesthesia data warehouse. Four instances of clinical questions illustrate the use of those engines for various improvements of quality of care: duration of procedure, drug administration, assessment of hypotension and its related treatment...
2016: Studies in Health Technology and Informatics
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