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Vascular anaesthesia

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https://www.readbyqxmd.com/read/28710899/effects-of-dobutamine-dopamine-phenylephrine-and-noradrenaline-on-systemic-haemodynamics-and-intestinal-perfusion-in-isoflurane-anaesthetised-horses
#1
C Dancker, K Hopster, K Rohn, S B Kästner
BACKGROUND: In the horse, effects of cardiovascular-active drugs on local perfusion of the gastrointestinal tract are poorly understood. OBJECTIVES: To determine the effect of drugs commonly used to support blood pressure, on local intestinal blood flow and tissue oxygenation under isoflurane anaesthesia. STUDY DESIGN: In vivo randomised crossover experiment METHODS: Ten horses were anaesthetised with isoflurane. After 90 minutes of equilibration three doses (μg/kg bwt/min) of dobutamine (DOB 0...
July 15, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28495814/automated-control-of-mechanical-ventilation-during-general-anaesthesia-study-protocol-of-a-bicentric-observational-study-avas
#2
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/28479769/analysis-of-outcome-of-end-to-end-and-end-to-side-internal-iliac-artery-anastomosis-in-renal-transplantation-our-initial-experience-with-a-case-series
#3
Dilip Kumar Pal, Prakash Kumar Sanki, Sayak Roy
INTRODUCTION: In renal transplantation, there is end-to-side anastomosis of renal artery to external iliac artery and end-to-end anastomosis of renal artery to internal iliac artery. The end-to-end internal iliac artery anastomosis can be associated with complications due to compromised distal vascular supply to limbs and penile erectile tissue. A method of end-to-side anastomosis can overcome them. Till date, there is no case series or trial that has studied the effect of end-to-side anastomosis...
April 2017: Urology Annals
https://www.readbyqxmd.com/read/28431821/near-infrared-spectroscopy-as-a-predictor-for-shunt-requirement-during-carotid-endarterectomy
#4
M Jonsson, D Lindström, A Wanhainen, K Djavani Gidlund, P Gillgren
OBJECTIVE/BACKGROUND: Near infrared spectroscopy (NIRS) continuously monitors regional cerebral oxygenation (rSO2) in the frontal lobes. This method may be used in patients during carotid endarterectomy to indicate the need for shunting. The aim of the study was to evaluate the value of NIRS in determining the need for selective shunting during CEA. A secondary aim was to compare NIRS with stump pressure. METHODS: Between January 2013 and October 2016, 185 patients from two vascular units, undergoing CEA under local anaesthesia were prospectively included...
April 18, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28413903/digital-revascularization-and-replantation-using-the-wide-awake-hand-surgery-technique
#5
Jkf Wong, C H Lin, N J Chang, H C Chen, Y T Lin, C C Hsu
The use of local anaesthesia and adrenaline for hand surgery is gaining popularity; however, where vascularity is impaired, wide-awake surgery is considered a contraindication. We present our case series of five digital devascularizations and eight amputations that underwent surgery using the 'wide-awake' anaesthetic technique. A temporary digital tourniquet (< 20 min) was used in three cases to identify structures quickly. The anastomoses were performed under local anaesthesia without a tourniquet. All cases had successful re-establishment of blood flow with good perfusion to the digital tips; no cases were re-explored because of vascular crisis...
April 1, 2017: Journal of Hand Surgery, European Volume
https://www.readbyqxmd.com/read/28389252/the-impact-of-patient-demographics-anatomy-comorbidities-and-peri-operative-planning-on-the-primary-functional-maturation-of-autogenous-radiocephalic-arteriovenous-fistula
#6
A Kordzadeh, A Askari, M Hoff, V Smith, Y Panayiotopoulos
OBJECTIVES: The aim of this study was to evaluate the collective and/or independent impact of patient demographics, comorbidities, anatomical factors, and peri-operative parameters on the primary functional maturation of RCAVFs. This study also aimed to identify the range and best cut off value for each variable and evaluate the likelihood, significance and percentage of primary functional maturation of RCAVFs. METHODS: This was a prospective consecutive single centre cohort study over a 4 year period; it was conducted on patients with the intention-to-treat using a radiocephalic arteriovenous fistula (RCAVF) (Brescia-Cimino)...
May 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28295944/paracentral-acute-middle-maculopathy-as-a-finding-in-patients-with-severe-vision-loss-following-phacoemulsification-cataract-surgery
#7
Katarina Creese, Daini Ong, Sukhpal S Sandhu, David Ware, C Alex Harper, Salmaan H Al-Qureshi, Sanjeewa S Wickremasinghe
IMPORTANCE: Paracentral acute middle maculopathy (PAMM) as diagnosed by spectral domain optical coherence tomography (SD-OCT) may be associated with "patch off" visual loss post cataract surgery. BACKGROUND: To report a case series of severe vision loss due to PAMM after cataract surgery DESIGN: Retrospective case series. PARTICIPANTS: Cases from five surgical centres (public and private) in Victoria, Australia. METHODS: Retrospective analysis of cases with unexplained "patch-off" vision loss post cataract surgery...
March 13, 2017: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/28285956/regional-versus-local-anaesthesia-for-haemodialysis-arteriovenous-fistula-formation-a-systematic-review-and-meta-analysis
#8
REVIEW
R Cerneviciute, S M Sahebally, K Ahmed, M Murphy, W Mahmood, S R Walsh
BACKGROUND: Arteriovenous fistula (AVF) formation is the most common vascular access procedure for patients requiring haemodialysis. However, it is associated with high failure rates, influenced by vessel diameter and arterial inflow. Mode of anaesthesia may affect these factors, and subsequently AVF maturation rates. OBJECTIVE: To perform a systematic review and meta-analysis to assess the effect of anaesthesia type for autologous primary radiocephalic or brachiocephalic AVF creation on subsequent fistula failure rates...
May 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28268070/post-carotid-endarterectomy-hypertension-part-1-association-with-pre-operative-clinical-imaging-and-physiological-parameters
#9
J E Newman, M J Bown, R D Sayers, J P Thompson, T G Robinson, B Williams, R Panerai, P Lacy, A R Naylor
OBJECTIVE/BACKGROUND: Post-endarterectomy hypertension (PEH) is a well recognised, but poorly understood, phenomenon after carotid endarterectomy (CEA) that is associated with post-operative intracranial haemorrhage, hyperperfusion syndrome, and cardiac complications. The aim of the current study was to identify pre-operative clinical, imaging, and physiological parameters associated with PEH. METHODS: In total, 106 CEA patients undergoing CEA under general anaesthesia underwent pre-operative evaluation of 24 hour ambulatory arterial blood pressure (BP), baroreceptor sensitivity, cerebral autoregulation, and transcranial Doppler measurement of cerebral blood flow velocity (CBFv) and pulsatility index...
March 3, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28258686/ischaemic-preconditioning-for-the-reduction-of-renal-ischaemia-reperfusion-injury
#10
REVIEW
Theo P Menting, Kimberley E Wever, Denise Md Ozdemir-van Brunschot, Daan Ja Van der Vliet, Maroeska M Rovers, Michiel C Warle
BACKGROUND: Ischaemia reperfusion injury can lead to kidney dysfunction or failure. Ischaemic preconditioning is a short period of deprivation of blood supply to particular organs or tissue, followed by a period of reperfusion. It has the potential to protect kidneys from ischaemia reperfusion injury. OBJECTIVES: This review aimed to look at the benefits and harms of local and remote ischaemic preconditioning to reduce ischaemia and reperfusion injury among people with renal ischaemia reperfusion injury...
March 4, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28146458/moderate-hyperoxia-induces-inflammation-apoptosis-and-necrosis-in-human-umbilical-vein-endothelial-cells-an-in-vitro-study
#11
Christina Hafner, Jing Wu, Lourdes Soto-Gonzalez, Christoph Kaun, Stefan Stojkovic, Johann Wojta, Verena Tretter, Klaus Markstaller, Klaus U Klein
BACKGROUND: Perioperative oxygen (O2) therapy can cause hyperoxia. Extreme hyperoxia can injure the cardiovascular system and remote organs. OBJECTIVE: Our primary objective was to test the hypothesis that exposure to moderate hyperoxia will induce injury to human umbilical vein endothelial cells (HUVECs), a model for studying the vascular endothelium under controlled conditions. DESIGN: In-vitro cell culture study. SETTING: Department of Anaesthesia, General Intensive Care and Pain Management, Medical University of Vienna, Austria...
March 2017: European Journal of Anaesthesiology
https://www.readbyqxmd.com/read/28122007/impact-of-stroke-therapy-academic-industry-roundtable-stair-guidelines-on-peri-anesthesia-care-for-rat-models-of-stroke-a-meta-analysis-comparing-the-years-2005-and-2015
#12
Aurelie Thomas, Johann Detilleux, Paul Flecknell, Charlotte Sandersen
Numerous studies using rats in stroke models have failed to translate into successful clinical trials in humans. The Stroke Therapy Academic Industry Roundtable (STAIR) has produced guidelines on the rodent stroke model for preclinical trials in order to promote the successful translation of animal to human studies. These guidelines also underline the importance of anaesthetic and monitoring techniques. The aim of this literature review is to document whether anaesthesia protocols (i.e., choice of agents, mode of ventilation, physiological support and monitoring) have been amended since the publication of the STAIR guidelines in 2009...
2017: PloS One
https://www.readbyqxmd.com/read/28119385/anaesthesia-modalities-during-laser-photocoagulation-for-retinopathy-of-prematurity-a-retrospective-longitudinal-study
#13
Jing-Bo Jiang, Randy Strauss, Xian-Qiong Luo, Chuan Nie, Yan-Li Wang, Jia-Wen Zhang, Zhi-Wei Zhang
OBJECTIVES: Laser photocoagulation surgery is a routine treatment for threshold retinopathy of prematurity (ROP). However, little is known about which anaesthesia protocols provide efficient pain control while minimising exposure risk to vulnerable infants. In this study, therefore, we assessed the efficacy and tolerability of multiple anaesthesia techniques used on premature infants during laser therapy. DESIGN AND MAIN OUTCOME MEASURES: Anaesthesia modalities consisted of topical eye drops anaesthesia, general anaesthesia and intravenous fentanyl sedation with mechanical ventilation...
January 24, 2017: BMJ Open
https://www.readbyqxmd.com/read/28078374/-anaesthesia-procedures-and-invasive-vascular-access-in-severely-injured-patients-at-trauma-room-admission-in-germany-an-online-survey
#14
M F Struck, P Hilbert-Carius, B Hossfeld, J Hinkelbein, M Bernhard, T Wurmb
BACKGROUND: The continuous monitoring of vital parameters and subsequent therapy belong to the core duties of anaesthetists during acute trauma resuscitation in the trauma room. Important procedures may include placement of arterial lines and central venous catheters (CVCs). Knowledge of indication, performance and localization of invasive catheterisation of trauma care in Germany is scarce. METHODS: After approval of the German Society of Anaesthesiology and Intensive Care Medicine we conducted an online survey about arterial and central venous catheterisation of severely injured patients with consideration of common practice used by anaesthetists in German trauma rooms...
February 2017: Der Anaesthesist
https://www.readbyqxmd.com/read/28003695/anaesthesia-for-foetoscopic-laser-ablation-a-retrospective-study
#15
Vaishali Kumbhar, M Radhika, Parameswara Gundappa, Jayashree Simha, Prathima Radhakrishnan
BACKGROUND AND AIMS: Twin pregnancy with monochorionic placenta may be associated with arteriovenous vascular anastomosis of the placental vessels resulting in twin-to-twin transfusion syndrome (TTTS) and twin reversed arterial perfusion syndrome (TRAP). Foetoscopic LASER ablation (FLA) is the treatment of choice in reducing foetal mortality related to this. METHODS: A retrospective review of medical records of 41 FLA procedures for TTTS and TRAP were analysed for anaesthetic management...
December 2016: Indian Journal of Anaesthesia
https://www.readbyqxmd.com/read/27974158/clinicopathological-features-of-cardiac-glycolipid-storage-disease-in-an-adult-pug
#16
J N S N Tran, K J Ash, S V Seshan, K M Kelly
A 12-year-old neutered male pug suffered cardiac arrest and died under general anaesthesia during diagnostic imaging for evaluation of exercise intolerance and respiratory crisis. Histopathological evaluation revealed two types of storage material, glycolipid and lipopigment, having differential distributions in multiple organs. The heart was most strikingly affected and other less affected tissues included the liver, brain, kidneys and skin. Cardiomyocytes were swollen with extensive sarcoplasmic vacuolation together with coalescing areas of myocardial fibrosis...
February 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/27932686/computed-tomography-based-survey-of-the-vascular-anatomy-of-the-juvenile-g%C3%A3-ttingen-minipig
#17
J Siefert, K H Hillebrandt, M Kluge, D Geisel, P Podrabsky, T Denecke, M Nösser, J Gassner, A Reutzel-Selke, B Strücker, M H Morgul, S Guel-Klein, J K Unger, A Reske, J Pratschke, I M Sauer, N Raschzok
Over the past 50 years, image-guided procedures have been established for a wide range of applications. The development and clinical translation of new treatment regimens necessitate the availability of suitable animal models. The juvenile Göttingen minipig presents a favourable profile as a model for human infants. However, no information can be found regarding the vascular system of juvenile minipigs in the literature. Such information is imperative for planning the accessibility of target structures by catheterization...
December 8, 2016: Laboratory Animals
https://www.readbyqxmd.com/read/27916016/penetrating-neck-trauma-and-the-need-for-surgical-exploration-six-year-experience-within-a-regional-trauma-centre
#18
A V Kasbekar, E J Combellack, S G Derbyshire, A C Swift
BACKGROUND: There has been a shift towards conservative management of penetrating neck trauma in selected patients. METHODS: A retrospective case note review of the management of penetrating neck trauma (2007-2013) was undertaken at our large teaching hospital and compared against best-evidenced practice. RESULTS: Sixty-three patients were admitted over six years. The incidence of penetrating neck trauma is reducing, contrary to our belief...
January 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/27909609/emergency-difficult-airway-management-in-a-patient-with-severe-epidermolysis-bullosa
#19
Ahmet Selim Özkan, Gülay Erdoğan Kayhan, Sedat Akbaş, Osman Kaçmaz, Mahmut Durmuş
Epidermolysis bullosa (EB) is a rare disease characterised by vesiculobullous lesions with minimal trauma to the skin and mucous membranes. Bleeding, scar tissue, contractures, oedema and lesions that can spread throughout the body can cause a difficult airway and vascular access in patients with EB. Therefore, anaesthetic management in patients with EB is a major problem even for experienced anaesthesiologists. Herein, we report a case of difficult airway management in a patient diagnosed with severe EB who presented for emergency tracheostomy because of respiratory failure under general anaesthesia...
October 2016: Turkish Journal of Anaesthesiology and Reanimation
https://www.readbyqxmd.com/read/27891584/an-observational-study-of-the-macro-and-micro-haemodynamic-implications-of-epidural-anaesthesia-in-children
#20
L Triffterer, P Marhofer, G Lechner, T C Marksz, O Kimberger, W Schmid, D Marhofer
The haemodynamic implications of epidural anaesthesia in children are poorly documented. We report macro- and micro-haemodynamic data from an observational study of 25 children ranging from neonates to six-years old, who underwent surgery conducted with a specific combination of monitoring systems. We analysed 90 min of study-related monitoring after epidural catheterisation, with skin incision taking place after around 30 min. We recorded macrohaemodynamic parameters (monitored using LiDCOrapid) including heart rate, mean arterial pressure, cardiac output, stroke volume, systemic vascular resistance and stroke volume variation...
April 2017: Anaesthesia
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