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Vascular anaesthesia

A S Vidane, A O Pinheiro, J B Casals, D Passarelli, McFns Hage, R S Bueno, D S Martins, C E Ambrósio
Chronic kidney disease (CKD) is a common clinical condition in domestic cats, characterized by tubulointerstitial, vascular and glomerular inflammation and severe fibrosis. Studies in rodent model of induced CKD have shown a decrease and stabilization of the clinical condition. In this study was evaluated the safety and effect of intrarenal and intravenous infusion of allogeneic mesenchymal stem cells (AMSCs) derived from feline amniotic membrane in cats with naturally occurring CKD. Cat AMSCs were harvested after mechanical and enzymatic digestion of amnion...
October 23, 2016: Reproduction in Domestic Animals, Zuchthygiene
Georges Daccache, Edouard Caspersen, Michel Pegoix, Kelly Monthé-Sagan, Ludovic Berger, Dominique Fletcher, Jean-Luc Hanouz
BACKGROUND: The intraoperative modulation of opioids continues to be based on clinical signs. This may result in adverse events such as sympathetic reactivity or opioid induced hyperalgesia. Recently, the Analgesia/Nociception Index (ANI), a non-invasive 0-100 index derived from heart rate variability analysis, has been proposed for nociception assessment. However, the ability of the ANI to adequately guide intraoperative opioid administration has never been demonstrated. We designed a prospective study to evaluate the ability of the ANI to guide remifentanil administration in vascular surgery...
October 12, 2016: Anaesthesia, Critical Care & Pain Medicine
R Dandriyal, S Pachauri, K Y Giri, S Rastogi, N I B Prasad, S Agarwal, H P Singh
Our aim was to evaluate the efficacy of clonidine with lidocaine as a local anaesthetic agent for inferior alveolar mandibular nerve blocks for dental extraction. We studied 200 patients who required extraction of mandibular teeth and divided them into two groups of 100 each, the first of which was given lidocaine and adrenaline (12.5μg/ml) and the second lidocaine and clonidine (15μg/ml). Cardiovascular vascular variables (blood pressure, heart rate, and mean arterial pressure) were assessed before, during, and after extraction, and postoperative pain was measured on a visual analogue scale...
October 3, 2016: British Journal of Oral & Maxillofacial Surgery
I Schulze, E M Poos, H Meyer, A K List, S B R Kaestner, J Rehage
The aim of this study was to examine the effects of preoperative carprofen on the cardiorespiratory, hormonal and metabolic stress response during umbilical surgery under isoflurane anaesthesia combined with local anaesthesia, in calves. A randomised, blinded experimental study was conducted in 24 calves. Carprofen (n = 12; 1.4 mg/kg) or physiological saline solution (controls; n = 12) was administered 1 h prior to surgery. Anaesthesia was induced with xylazine (0.1 mg/kg, IM) and, after the onset of sedation (i...
October 2016: Veterinary Journal
E Pesonen, J Keski-Nisula, S Andersson, R Palo, J Salminen, P K Suominen
BACKGROUND: Corticosteroids are used in paediatric heart surgery to attenuate systemic inflammatory response. Glycocalyx regulates vascular permeability, shear stress and cell adhesion on the endothelium. Syndecan-1 serves as a biomarker of glycocalyx degradation. Hydrocortisone decreased endothelial glycocalyx degradation in an experimental model. Our hypothesis was that high-dose methylprednisolone decreases glycocalyx degradation as measured by plasma sydecan-1 concentration in children undergoing cardiac surgery...
November 2016: Acta Anaesthesiologica Scandinavica
Ki Jinn Chin, Javier E Cubillos, Husni Alakkad
BACKGROUND: Regional anaesthesia comprising axillary block of the brachial plexus is a common anaesthetic technique for distal upper limb surgery. This is an update of a review first published in 2006 and previously updated in 2011 and 2013. OBJECTIVES: To compare the relative effects (benefits and harms) of three injection techniques (single, double and multiple) of axillary block of the brachial plexus for distal upper extremity surgery. We considered these effects primarily in terms of anaesthetic effectiveness; the complication rate (neurological and vascular); and pain and discomfort caused by performance of the block...
September 2, 2016: Cochrane Database of Systematic Reviews
V C So, C C M Poon
There has been a growing interest in using intraoperative neuromonitoring to reduce the incidence of stroke and paralysis in major vascular interventions. Electroencephalography, various neurophysiological evoked potential measurements, transcranial Doppler, and near-infrared spectroscopy are some of the modalities currently used to detect neural injuries. A good understanding of these modalities and their interactions with anaesthesia is important to maximize their value and to allow meaningful interpretation of their results...
September 2016: British Journal of Anaesthesia
S J Howell, J P Thompson, M G Irwin
No abstract text is available yet for this article.
September 2016: British Journal of Anaesthesia
Parvan P Voynov, Georgi T Tomov, Nonka G Mateva
INTRODUCTION: A venous lake (VL) is a vascular lesion with common occurrence in many patients, manifested as a dark blue-to-violet compressible papule, caused by dilation of venules. The main reasons for the treatment of VL are aesthetic. The haemorrhaging episodes or impairment of oral normal functions are also under considerations. Treatment of lip VL includes surgical excision, selective photocoagulation, cryotherapy, sclerotherapy and electrodessication. The high-intensity diode laser is an option...
April 2016: Folia Medica
Jochen Wöhrle, Birgid Gonska, Christoph Rodewald, Julia Seeger, Dominik Scharnbeck, Wolfgang Rottbauer
AIMS: The aim of the study was to evaluate the procedural and 30-day results for the repositionable Lotus valve in patients undergoing transfemoral aortic valve implantation in a single-centre experience. METHODS AND RESULTS: We prospectively enrolled 110 patients with severe symptomatic aortic stenosis (NCT02162069). All procedures were performed without general anaesthesia by the transfemoral approach. Patients were followed for 30 days. Patients received the 23 mm (n=20), 25 mm (n=43) or 27 mm (n=47) Lotus device...
August 20, 2016: EuroIntervention
Bożena Bądzyńska, Andrzej W Lipkowski, Krzysztof H Olszyński, Janusz Sadowski
Opioids interact with sympathetic and renin-angiotensin systems in control of mean arterial pressure (MAP). Our earlier finding that biphalin, a synthetic enkephalin analogue, decreased MAP in anaesthetized spontaneously hypertensive rats (SHR) prompted us to further explore this action, to get new insights into pathogenesis of various forms of hypertension. Biphalin effects were studied in SHR, uninephrectomized rats on a high-salt diet (HS/UNX), and rats with angiotensin-induced hypertension (Ang-iH). Besides MAP, renal and iliac blood flows (RBF, IBF) and vascular resistances were measured...
June 8, 2016: Canadian Journal of Physiology and Pharmacology
Emma Aitken, Andrew Jackson, Rachel Kearns, Mark Steven, John Kinsella, Marc Clancy, Alan Macfarlane
BACKGROUND: Arteriovenous fistulae are the optimum form of vascular access in end-stage renal failure. However, they have a high early failure rate. Regional compared with local anaesthesia results in greater vasodilatation and increases short-term blood flow. This study investigated whether regional compared with local anaesthesia improved medium-term arteriovenous fistula patency. METHODS: This observer-blinded, randomised controlled trial was done at three university hospitals in Glasgow, UK...
September 10, 2016: Lancet
S Scolletta, D Marianello, G Isgrò, A Dapoto, V Terranova, F Franchi, E Baryshnikova, C Carlucci, M Ranucci
BACKGROUND: The effects of cardiac surgery on the microcirculation of children are unknown. The aim of this study was to assess the microcirculatory changes in children undergoing surgery for correction of congenital heart disease. METHODS: We used a videomicroscope (Sidestream Dark Field, SDF) in a convenience sample of 24 children <five yr old. Total vascular density (TVD, vessels mm(-2)), microvascular flow index (MFI, arbitrary units), proportion of perfused small vessels (PPV, percentage), and perfused vessel density (PVD) were obtained after induction of anaesthesia (T1), at the end of the surgical procedure (T2), after intensive care unit (ICU) admission (T3), and at six h (T4) and 12h (T5) after ICU admission...
August 2016: British Journal of Anaesthesia
Aleksandra Biedrzycka, Maciej Kowalik, Rafał Pawlaczyk, Dariusz Jagielak, Dariusz Świetlik, Wiktor Szymanowicz, Romuald Lango
OBJECTIVES: The purpose of the present study was to assess, by near-infrared spectroscopy with an INVOS oximeter during the vascular occlusion test (VOT), the influence of cardiopulmonary bypass (CPB) on tissue saturation in the thenar muscle. The secondary aim was to compare the effects of propofol and sevoflurane anaesthesia on tissue saturation. METHODS: This was a prospective, randomized, open-label study. Sixty cardiac surgery patients received either propofol or sevoflurane anaesthesia...
July 8, 2016: Interactive Cardiovascular and Thoracic Surgery
Thomas F Bendtsen, Stephen Haskins, Jens Aage Kølsen Petersen, Jens Børglum
It has been suggested for many years that regional anaesthesia is advantageous in high-risk patients, either as the sole anaesthetic or in combination with general anaesthesia. Regional techniques are safe and even more so when guided by ultrasound. In the high-risk patient population, ultrasound-guided regional anaesthesia (UGRA) can help decrease risk of perioperative morbidity and improve short-term as well as long-term outcomes, particularly in the orthopaedic, vascular, oncologic and chronic pain patient populations...
June 2016: Best Practice & Research. Clinical Anaesthesiology
Rafael Badenes, María L García-Pérez, Federico Bilotta
PURPOSE OF REVIEW: This review reports recent evidence on intraoperative monitoring of cerebral oximetry and depth of anaesthesia during neuroanaesthesia procedures. RECENT FINDINGS: The clinical benefits of intraoperative monitoring with cerebral oximetry [near infrared spectroscopy (NIRS) and brain tissue oxygenation monitoring (brptiO2)] and depth of anaesthesia with bispectral index (BIS) have recently been studied in surgical (carotid endarterectomy, cerebral arteriovenous malformations resection and brain tumour resections) and neuroradiological vascular procedures...
October 2016: Current Opinion in Anaesthesiology
Mehmet Ali Erdoğan, Muharrem Uçar, Ahmet Selim Özkan, Ülkü Özgül, Mahmut Durmuş
Phaeochromocytoma is a catecholamine-secreting vascular tumour that is derived from chromaffin cell. Lethal cardiovascular complications, such as serious hypertension, myocardial infarction and aortic dissection, may occur because of uncontrolled catecholamine release. Each stage of anaesthesia management has vital importance because of this destructive catecholamine secretion that may occur during induction, perioperative stage and surgical manipulation. In this study, we report regarding the preoperative preparation and severe, persistent hypertension attack management with a combination of α-adrenergic blockade, β-adrenergic blockade, sodium nitroprusside and remifentanil in a patient who underwent laparoscopic surgery for phaeochromocytoma...
February 2016: Turkish Journal of Anaesthesiology and Reanimation
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)...
June 16, 2016: Journal of Clinical Monitoring and Computing
Ambadas Kulkarni, Soumithran Chandrasala, Basavaraj Nimbeni, Praveesh Vishnudas, Arul Dev
Penetrating craniofacial trauma, although uncommon, has a high potential for death or catastrophic consequences from head injury or vital neurovascular injuries. The foreign body may cause significant challenge, especially when it is a large one. Airway obstruction, vascular injuries, intracranial communication, ocular injury and injuries to any other adjacent vital structures when involved may change the treatment objectives from simple foreign body retrieval to a comprehensive multidisciplinary approach to stabilize the patient...
April 2016: Journal of Clinical and Diagnostic Research: JCDR
Neharika Sharma, Stephen O'Hagan, Gael Phillips
BACKGROUND: Conjunctival myxomas are rare, benign, connective tissue tumours that classically present as slow-growing, painless, well-circumscribed masses (Arch Ophthalmol 124:735-8, 2006; Case Rep Ophthalmol 3:145-50, 2012). There have been 29 cases reported in the literature (Arch Ophthalmol 124:735-8, 2006; Malays J Med Sci 20(1):92-4, 2013; Case Rep Ophthalmol 3:145-50, 2012; Middle East Afr J Ophthalmol 19(3):353-3, 2012). We present a case with atypical features, and emphasize the importance of excisional biopsies for diagnosing indeterminate conjunctival lesions...
2016: BMC Ophthalmology
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