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ophthalmic anaesthesia

Awy Chua, M J Chua, Pca Kam
Significant surgical advances have been made recently in corneal transplantation. Penetrating keratoplasty was the dominant method from 1905, until selective lamellar keratoplasty emerged as the preferred technique over the last 20 years. Advanced techniques such as corneal limbal stem cell transplant and keratoprosthesis are also available. The major surgical complications of corneal transplantation are extrusion of ocular content and expulsive choroidal haemorrhage. It is essential for an ophthalmic anaesthetist to have a good understanding of these new surgical procedures so as to provide optimal surgical conditions...
March 2018: Anaesthesia and Intensive Care
Heinrich Rüschen, Kavitha Aravinth, Catey Bunce, Desta Bokre
BACKGROUND: Hyaluronidase has been used over many decades as an adjunct to local anaesthetic solution to improve the speed of onset of eye blocks and to provide better akinesia and analgesia. With the evolution of modern eye surgery techniques, fast onset and akinesia are not essential requirements anymore. The assumption that the addition of hyaluronidase to local anaesthetic injections confers better analgesia for the patient needs to be examined. There has been no recent systematic review to provide evidence that hyaluronidase actually improves analgesia...
March 2, 2018: Cochrane Database of Systematic Reviews
Alain Regnier, Iris Berton, Didier Concordet, Jean-Yves Douet
OBJECTIVE: To assess the degree and duration of corneal anaesthesia provided by topical application of a non-ophthalmic 2% lidocaine gel in horses. STUDY DESIGN: Experimental, 'blinded', randomized prospective study. ANIMALS: Twelve adult horses without relevant ocular abnormalities. METHODS: Baseline corneal touch threshold (CTT) measurements were obtained bilaterally by use of a Cochet-Bonnet aesthesiometer just prior to topical treatment...
March 2018: Veterinary Anaesthesia and Analgesia
Stefania Scarabelli, Dorina Timofte, Fernando Malalana, David Bardell
OBJECTIVE: To evaluate the incidence of corneal abrasions/ulceration and microbial contamination in horses undergoing general anaesthesia. STUDY DESIGN: Prospective, observational, clinical study. ANIMALS: A total of 40 client-owned healthy horses scheduled for elective non-ophthalmic procedures. METHODS: Conjunctival sac swabs were taken, fluorescein dye applied and digital images recorded from both eyes of the horses after preanaesthetic medication and 24 hours after recovery from general anaesthesia...
January 9, 2018: Veterinary Anaesthesia and Analgesia
A El-Khayat, M Wakefield, P Boddy, J Prydal
No abstract text is available yet for this article.
January 5, 2018: Eye
A Schwartz, D Kaplan, V Rosenzweig, M Klein, B F Gruenbaum, S E Gruenbaum, M Boyko, A Zlotnik, E Brotfain
BACKGROUND: Inadvertent hyperthermia during anaesthesia is a rare but life-threatening complication. We have encountered several cases of severe hyperthermia in paediatric patients undergoing anaesthesia for cochlear implantation. METHODS: This study aimed to describe the clinical characteristics of children who developed hyperthermia while undergoing cochlear implantation, and to explore possible mechanisms and predisposing factors. The anaesthetic charts of all patients aged under 18 years who underwent cochlear implantation, or mastoid or ophthalmic surgery, between 1 January 2006 and 31 December 2009, at Soroka Medical Center in Beer Sheva, Israel, were reviewed...
October 2017: Journal of Laryngology and Otology
A M de Carvalho Mendes Castenheira, P Pujol Vives, M Asaad Ammaar
INTRODUCTION: Familial amyloidotic polyneuropathy is a disease related to amyloid material deposits in the extracellular matrix that can affect many tissues, including the eye. CASE REPORT: This case includes clinical data, a full corneal study report, and histopathological findings, as well as the treatment and follow up of bilateral neurotrophic keratopathy in a 33 year-old patient with familial amyloidotic polyneuropathy. DISCUSSION: Although amyloidotic deposits were also found in the conjunctival tissue, this is not a typical form of ophthalmic amyloidosis...
June 8, 2017: Archivos de la Sociedad Española de Oftalmología
Amy Mh Chan, Geok Koon Tan, Huey Peng Loh, Sock Huang Lim, Audrey Wl Chia
INTRODUCTION: Chloral hydrate (CH) sedation is routinely used in paediatric ophthalmic examination in Singapore as an alternative to examination under general anaesthesia. Despite CH's traditionally high success rates and relatively low rate of adverse events, there is little data on its safety and efficacy as a sedative for ophthalmic procedures in an Asian population. MATERIALS AND METHODS: A retrospective chart review was performed, including children who underwent CH sedation at the Singapore National Eye Centre from January 2012 to January 2015...
April 2017: Annals of the Academy of Medicine, Singapore
Jennifer W H Shum, Janice J C Cheung, Monica M N Lee, Oscar G W Wong, Kenneth K W Li
Purpose. To study whether nurse led same-day review (SDR) after uneventful phacoemulsification can replace next-day review (NDR) in terms of safety and efficacy. Setting. Patients are recruited from an ophthalmology outpatient clinic in Hong Kong. Design. A prospective, randomized crossover study conducted from November 2012 to 2014. Methods. Inclusion criteria include cataract surgery naïve patients undergoing phacoemulsification under local anaesthesia. All patients were seen by our ophthalmic nurse 2 hours after surgery...
2017: Journal of Ophthalmology
Nitin Bhorkar, Tasneem Dhansura, Urmila Tarawade, Sanchita Mahajan
No abstract text is available yet for this article.
March 2017: Indian Journal of Anaesthesia
Asimina Mataftsi, Paraskevi Malamaki, Efthymia Prousali, Paraskevi Riga, Dimitrios Lathyris, Nikolaos T Chalvatzis, Anna-Bettina Haidich
PURPOSE: Although chloral hydrate (CH) has been used as a sedative for decades, it is not widely accepted as a valid choice for ophthalmic examinations in uncooperative children. This study aimed to systematically review the literature on the drug's safety and efficacy. METHODS: We searched PubMed, EMBASE, ISI Web of Science, Scopus, CENTRAL, Google Scholar and Trip database to 1 October 2015, using the keywords 'chloral hydrate', 'paediatric' and 'procedural sedation OR diagnostic sedation'...
October 2017: British Journal of Ophthalmology
A Mayordomo-Febrer, M Rubio, M Martínez-Gassent, M M López-Murcia
Intraocular pressure (IOP) and tear production are commonly affected by general anaesthesia. It is necessary to have a good control of both to guarantee successful ophthalmic surgery. The purpose of this research was to evaluate if the protocol based on the administration of morphine-alfaxalone-midazolam as premedication, alfaxalone as induction and sevoflurane as maintenance, can induce changes on IOP and Schirmer's tear test (STT-1) in healthy dogs. Twenty-two adult mixed-breed dogs scheduled for an ovariohysterectomy were enrolled for the study...
May 13, 2017: Veterinary Record
Ana Licina, Sharan Sidhu, Jing Xie, Crispin Wan
BACKGROUND: Vitrectomy surgery is one of the commonest ophthalmic procedures performed across the world. It may be performed using general or local anaesthesia encompassing regional or topical anaesthesia depending on a number of factors, including patient suitability, and patient, surgeon or anaesthetist preference. There have so far been no evidence-based recommendations on the best form of anaesthesia for this intervention. There is no clear collated evidence base as to the best type of anaesthesia to reduce harm, and provide best surgical conditions and optimal outcome for patients...
September 19, 2016: Cochrane Database of Systematic Reviews
Gökhan Peker, Suna Akın Takmaz, Bülent Baltacı, Hülya Başar, Mustafa Kotanoğlu
OBJECTIVE: The aim of this study was to compare insertion parameters of four different types of supraglottic airway devices (SGAD) (Classic LMA, I-gel LMA, Proseal LMA, Cobra PLA) in children undergoing ophthalmic surgery and to determine the effect on intra-ocular pressure (IOP) and haemodynamic responses during insertion. METHODS: Sixty American society of Anesthesiologists (ASA) I-II children aged 1-10 years undergoing extra-ocular ophthalmic surgery were randomly divided into four groups (Group LMA, Group I-gel LMA, Group PLMA and Group CPLA) in this prospective, randomised study...
October 2015: Turkish Journal of Anaesthesiology and Reanimation
W B Little, G St Jean, F Sithole, E Little, K Yvorchuk-St Jean
OBJECTIVES: The use of corneal anaesthesia is necessary for a range of clinical purposes. Therefore, we assessed and compared the efficacy of corneal anaesthesia after application of 0.4% oxybuprocaine hydrochloride and 0.5% proparacaine hydrochloride ophthalmic solution in clinically normal cattle. METHODS: The 24 clinically normal cows were allocated into two groups. Cows in group 1 (n = 12) received 0.2 mL of 0.4% oxybuprocaine hydrochloride with fluorescein ophthalmic solution in one eye and 0...
June 2016: Australian Veterinary Journal
Stephan Waxweiler
No abstract text is available yet for this article.
June 2016: Klinische Monatsblätter Für Augenheilkunde
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...
May 13, 2016: BMC Ophthalmology
Suman Shree Ramaswamy, B Parimala
BACKGROUND AND AIMS: Midazolam-fentanyl (MDZ:FEN) combination has been routinely used for intravenous sedation in ophthalmic surgeries. Dexmedetomidine (DEX), a recent α2 adrenoreceptor agonist indicated for sedation for ophthalmic use at a loading dose of 0.5 μg/kg over 10 min, can cause deeper plane of sedation and surgeon dissatisfaction. Therefore, we proposed to evaluate the efficacy and safety of two different loading doses of DEX. METHODS: In a prospective study, 60 patients aged 50-70 years, scheduled for retinal surgery under peribulbar block were divided equally to receive either MDZ:FEN or DEX 0...
February 2016: Indian Journal of Anaesthesia
Başak Altiparmak, Başak Akça, Aysun Ankay Yilbaş, Nalan Çelebi
Ketamine is a non-barbiturate cyclohexamine derivative which produces a state of sedation, immobility, analgesia, amnesia, and dissociation from the environment. One of the most important advantages of ketamine premedication is production of balanced sedation with less respiratory depression and less changes in blood pressure or heart rate. As its effects on intracranial pressure, the possible effect of ketamine on intraocular pressure has been controversial overtime. In this study, we aimed to demostrate all the advantages and possible side effects of ketamine premedication in 100 children with retinablastoma undergoing ophthalmic surgery...
2015: International Journal of Clinical and Experimental Medicine
Kyung Mi Kim, Ki Hwa Lee, Yong Han Kim, Myoung Jin Ko, Jae-Wook Jung, Eunsu Kang
OBJECTIVE: A prospective, double-blind, randomized controlled trial to compare the effect of preoperative midazolam or ketamine on the incidence of emergence agitation (EA) following sevoflurane anaesthesia in children. METHODS: Paediatric patients (2-6 years old) undergoing ophthalmic surgery were allocated to receive premedication with either 0.1 mg/kg midazolam or 1 mg/kg ketamine. Incidence of EA and postoperative pain scores were recorded at 10-min intervals in the postanaesthetic care unit (PACU)...
April 2016: Journal of International Medical Research
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