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Sub-Tenon's block

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https://www.readbyqxmd.com/read/27162743/ultrasound-comparison-of-diffusion-of-local-anesthetic-solution-after-a-peribulbar-and-a-sub-tenon-s-block-a-pilot-study
#1
Emile Calenda, Marc Muraine
No abstract text is available yet for this article.
2016: International Journal of Ophthalmology
https://www.readbyqxmd.com/read/27162452/comparison-of-peribulbar-with-posterior-sub-tenon-s-anesthesia-in-cataract-surgery-among-nigerians
#2
Ogbonnaya N Iganga, Oluyemi Fasina, Charles O Bekibele, Benedictus G K Ajayi, Ayobade O Ogundipe
PURPOSE: To compare the akinetic and the analgesic effects of peribulbar and posterior sub-Tenon's anesthesia in patients undergoing cataract surgery. METHODS: In a hospital-based randomized comparative interventional study, patients aged 50 years and above who underwent elective surgery for uncomplicated cataract were randomized to receive either peribulbar block or posterior sub-Tenon block. Pain during injection, surgery, and after surgery was assessed using numerical reporting scale (NRS)...
April 2016: Middle East African Journal of Ophthalmology
https://www.readbyqxmd.com/read/26363691/-effectiveness-of-sub-tenon-s-block-in-pediatric-strabismus-surgery
#3
Kasim Tuzcu, Mesut Coskun, Esra Ayhan Tuzcu, Murat Karcioglu, Isil Davarci, Sedat Hakimoglu, Suzan Aydın, Selim Turhanoglu
BACKGROUND AND OBJECTIVES: Strabismus surgery is a frequently performed pediatric ocular procedure. A frequently occurring major problem in patients receiving this treatment involves the oculocardiac reflex. This reflex is associated with an increased incidence of postoperative nausea, vomiting, and pain. The aim of this study was to investigate the effects of a sub-Tenon's block on the oculocardiac reflex, pain, and postoperative nausea and vomiting. METHODS: 40 patients aged 5-16 years with American Society of Anesthesiologists status I-II undergoing elective strabismus surgery were included in this study...
September 2015: Revista Brasileira de Anestesiologia
https://www.readbyqxmd.com/read/26323732/effectiveness-of-sub-tenon-s-block-in-pediatric-strabismus-surgery
#4
Kasim Tuzcu, Mesut Coskun, Esra Ayhan Tuzcu, Murat Karcioglu, Isil Davarci, Sedat Hakimoglu, Suzan Aydın, Selim Turhanoglu
BACKGROUND AND OBJECTIVES: Strabismus surgery is a frequently performed pediatric ocular procedure. A frequently occurring major problem in patients receiving this treatment involves the oculocardiac reflex. This reflex is associated with an increased incidence of postoperative nausea, vomiting, and pain. The aim of this study was to investigate the effects of a sub-Tenon's block on the oculocardiac reflex, pain, and postoperative nausea and vomiting. METHODS: Forty patients aged 5-16 years with American Society of Anesthesiologists status I-II undergoing elective strabismus surgery were included in this study...
September 2015: Brazilian Journal of Anesthesiology
https://www.readbyqxmd.com/read/26316814/ophthalmic-regional-blocks-management-challenges-and-solutions
#5
REVIEW
Howard D Palte
In the past decade ophthalmic anesthesia has witnessed a major transformation. The sun has set on the landscape of ophthalmic procedures performed under general anesthesia at in-hospital settings. In its place a new dawn has ushered in the panorama of eye surgeries conducted under regional and topical anesthesia at specialty eye care centers. The impact of the burgeoning geriatric population is that an increasing number of elderly patients will present for eye surgery. In order to accommodate increased patient volumes and simultaneously satisfy administrative initiatives directed at economic frugality, administrators will seek assistance from anesthesia providers in adopting measures that enhance operating room efficiency...
2015: Local and Regional Anesthesia
https://www.readbyqxmd.com/read/26273747/the-effect-of-low-dose-dexmedetomidine-as-an-adjuvant-to-levobupivacaine-in-patients-undergoing-vitreoretinal-surgery-under-sub-tenon-s-block-anesthesia
#6
RANDOMIZED CONTROLLED TRIAL
Ashraf M Ghali, Amir M Shabana, Ashraf M El Btarny
BACKGROUND: This study evaluated the motor and sensory block durations and the postoperative analgesic effects of adding dexmedetomidine to levobupivacaine for sub-Tenon's block anesthesia in patients undergoing vitreoretinal surgery. Motor and sensory block durations were considered as a primary end point. METHODS: Sixty ASA physical status I to III patients subjected to vitreoretinal surgery under sub-Tenon's block anesthesia were randomly divided equally into 2 groups, depending on the local anesthesia solution used, to receive 4 mL of 0...
November 2015: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/26220299/effects-of-scleral-cross-linking-using-genipin-on-the-process-of-form-deprivation-myopia-in-the-guinea-pig-a-randomized-controlled-experimental-study
#7
Mengmeng Wang, Christine Carole C Corpuz
BACKGROUND: Scleral cross-linking (CXL) is a novel attempt to slow down the axial elongation process in animal eyes. As a natural CXL reagent, genipin would be also effective for the prevention of myopia process. Thus, the present study was designed to evaluate the effects of scleral cross-linking using genipin on the form-deprivation (FD) myopia process of guinea pigs. METHODS: Twenty-seven 3-week-old pigmented guinea pigs were randomly divided into three groups...
July 29, 2015: BMC Ophthalmology
https://www.readbyqxmd.com/read/25639036/-diagnostic-evaluation-of-sarcoid-choroidal-granuloma-using-high-penetration-optical-coherence-tomography
#8
Mayuri Ohtsuka, Noriyasu Hashida, Kenta Hozumi, Kohji Nishida
OBJECTIVES: We report a case of sarcoidosis that manifested as choroidal granuloma. We followed the treatment-associated changes in the granulomatous lesion by serial examinations using high-penetration optical coherence tomography (HP-OCT). CASE: A 77-year-old woman, who was referred to our clinic with granulomatous uveitis, presented initially with a yellowish-white subretinal granuloma formation surrounding the left optic disk. On presentation, diffuse keratic precipitates, anterior chamber inflammation and snowball-like vitreous opacity were observed...
December 2014: Nippon Ganka Gakkai Zasshi
https://www.readbyqxmd.com/read/25328382/challenges-for-the-cataract-surgeon-treating-people-with-dementia-a-qualitative-study-exploring-anesthetic-choices
#9
Joanna Mary Jefferis, Michael Patrick Clarke, John-Paul Taylor, Katie Rhian Brittain
BACKGROUND: In light of the growing number of people with dementia and age-related cataract, as well as changing anesthetic practices for cataract surgery, this study aimed to explore the experiences of cataract surgeons in managing patients with dementia and making anesthetic decisions. METHODS: This was a qualitative study using semistructured interviews with senior cataract surgeons from two centers in England. Fourteen surgeons were interviewed, and a thematic approach informed by grounded theory was used for the analysis...
2014: Clinical Ophthalmology
https://www.readbyqxmd.com/read/24767218/effects-of-sub-tenon-s-anaesthesia-on-ocular-hemodynamics
#10
Mesut Coşkun, Mutlu Cihan Dağlioğlu, Ramazan Davran, Nilüfer Ilhan, Ozgür Ilhan, Esra Ayhan Tuzcu, Emre Ayintap, Uğurcan Keskin, Huseyin Oksüz
OBJECTIVE: To research the effects of sub-Tenon's anaesthesia (STA) on ocular hemodynamics in patients with cataract using colour Doppler imaging (CDI). DESIGN: Prospective clinical study. PARTICIPANTS: Thirty-four eyes of 34 patients with age-related cataract. METHODS: Peak systolic velocity (PSV), end-diastolic velocity (EDV), and resistive index (RI) values of the ophthalmic artery (OA), central retinal artery, and central retinal vein were measured by CDI before and immediately after performing sub-Tenon block using 2 mL of 2% lidocaine with adrenaline (1:200 000)...
April 2014: Canadian Journal of Ophthalmology. Journal Canadien D'ophtalmologie
https://www.readbyqxmd.com/read/24619855/sub-tenon-block-does-not-provide-superior-postoperative-analgesia-vs-intravenous-fentanyl-in-pediatric-squint-surgery
#11
RANDOMIZED CONTROLLED TRIAL
Rashmi Ramachandran, Vimi Rewari, C Chandralekha, Renu Sinha, Anjan Trikha, Pradeep Sharma
PURPOSE: We evaluated the efficacy of sub-Tenon block in decreasing perioperative pain, incidence of intraoperative oculocardiac reflex (OCR), and postoperative nausea and vomiting (PONV) in pediatric squint surgery. METHODS: A total of 67 children age 2-12 years, American Society of Anesthesiologists Physical Status 1 and 2, were randomized to receive either sub-Tenon block (ST) in the operative eye or 2 mcg/kg of intravenous fentanyl (F) for squint surgery after induction of general anesthesia in this double-blind study...
September 2014: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/23817441/chemosis-secondary-to-anterograde-episcleral-sub-tenon-spread-of-local-anesthetic-during-retrobulbar-eye-block
#12
Howard D Palte, Steven Gayer
No abstract text is available yet for this article.
October 2014: Anesthesiology
https://www.readbyqxmd.com/read/23638286/teaching-corner-regional-anaesthesia-for-ophthalmic-surgery
#13
R Tighe, P I Burgess, G Msukwa
Performing safe and effective regional anaesthesia for ophthalmic surgery is an important skill for anaesthetic and ophthalmologic practitioners. Akinetic sharp-needle blocks are generally safe but rare, sight and life threatening complications occur. Sub-Tenon's block using a blunt canula provides akinesa and is a safer alternative but serious complications have been reported. This review provides an introduction to the relevant anatomy, local anaesthetic drugs and commonly used techniques and a practical guide to their safe performance...
December 2012: Malawi Medical Journal: the Journal of Medical Association of Malawi
https://www.readbyqxmd.com/read/23245364/posterior-capsule-rupture-rate-with-akinetic-and%C3%A2-kinetic-block-anesthetic-techniques
#14
REVIEW
Richard M H Lee, Barny Foot, Tom Eke
A systematic literature search was performed to identify prospective randomized studies comparing akinetic (sub-Tenon, peribulbar, or retrobulbar) and kinetic (topical or topical and intracameral) local anesthesia for phacoemulsification surgery. Only studies that stated the rate of posterior capsule rupture or that stated without qualification that there were no intraoperative complications were included. Of the initial 3182 articles, 15 papers met the inclusion criteria. The number of eyes ranged between 26 and 282 per group (mean 95...
January 2013: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/22915900/sub-tenon-s-anesthesia-an-update
#15
Philip Guise
Sub-Tenon's block has become the most common technique of orbital regional anesthesia in many centers. It provides effective anesthesia to the orbit with a lower incidence of sight-threatening complications than sharp needle techniques. This article will discuss the relevant anatomy, finer points of sub-Tenon's block technique, and the evidence supporting its safety.
2012: Local and Regional Anesthesia
https://www.readbyqxmd.com/read/22814045/comparison-of-metal-and-flexible-sub-tenon-cannulas
#16
RANDOMIZED CONTROLLED TRIAL
Waleed Riad, Nauman Ahmad, Chandra M Kumar
PURPOSE: To compare metal posterior, flexible posterior, and flexible medium sub-Tenon cannulas for akinesia and anesthesia. SETTING: King Khaled Specialist Eye Hospital, Riyadh, Saudi Arabia. DESIGN: Prospective blind randomized comparison. METHOD: Patients having cataract surgery under sub-Tenon block received a mixture of bupivacaine and lidocaine with hyaluronidase. The patients were divided into 3 groups based on whether a metal posterior sub-Tenon cannula, flexible posterior sub-Tenon cannula, or flexible medium sub-Tenon cannula was used...
August 2012: Journal of Cataract and Refractive Surgery
https://www.readbyqxmd.com/read/22712486/hyaluronidase-toxicity-a-possible-cause-of-postoperative-periorbital-inflammation
#17
Katherine Zamora-Alejo, Sacha Moore, Brian Leatherbarrow, Jonathan H Norris, Damien B Lake, Raman Malhotra, Dinesh Selva, Michael Goggin
BACKGROUND: Periorbital inflammation following regional anaesthesia is commonly attributed to hyaluronidase allergy. This case series suggests an alternative explanation in some patients. DESIGN: Retrospective case series. PARTICIPANTS: Seven patients presenting with postoperative non-infectious periorbital inflammation following peribulbar or sub-tenons anaesthesia, presenting at four different institutions, are described. METHODS: Data on patient demographics, operative data, clinical presentation, treatment and allergy testing were collected among the four institutions...
March 2013: Clinical & Experimental Ophthalmology
https://www.readbyqxmd.com/read/22350117/diplopia-following-sub-tenon-s-anaesthesia-an-unusual-complication
#18
Robert A Blum, Lik Thai Lim, Clifford R Weir
Diplopia is a rare but well recognised complication following retrobulbar and peribulbar local anaesthesia but it has not been widely reported following sub-tenon's local anaesthesia (STLA). We report on a 76-year-old woman who developed vertical diplopia after left phacoemulsification. She had received a STLA. She had left hypotropia measuring 30 prism diopters for near and distance. She was managed with occlusion but there was no improvement in her findings over 6 months. Ocular motility opinion was then sought and a presumptive diagnosis of inferior rectus fibrosis was made...
April 2012: International Ophthalmology
https://www.readbyqxmd.com/read/22320415/staggered-sub-tenon-s-blocks-a-novel-anesthetic-approach-for-bilateral-strabismus-surgery
#19
Shashi B Vohra
Bilateral strabismus surgery is usually performed under general anesthesia. However, sometimes general anesthesia is not in the best interest of patients presenting with advanced multiple comorbidities. These patients are best treated with local anesthesia instead. However, the bilateral nature of the surgery becomes an issue because bilateral akinetic needle blocks for ophthalmic surgery have not been described before. This article describes a novel approach for bilateral eye surgery in three patients who were at high risk from general anesthesia but needed to have the surgery performed in the same sitting...
May 2012: Ophthalmic Surgery, Lasers & Imaging
https://www.readbyqxmd.com/read/22185610/a-review-of-directions-of-gaze-during-intraocular-anesthetic-blocks
#20
REVIEW
Shashi B Vohra
Safety of orbital blocks depends on operator and patient factors. Among the patient factors, the direction of gaze is important. Certain ocular structures move when the gaze is shifted. These may veer into the path of the needle, setting the stage for injury. The optic nerve with its accompanying artery swerves medially during abduction, direct up gaze, and superolateral and inferolateral gazes. These gazes are therefore risky for medial compartment blocks. In a superomedial gaze, the optic nerve shifts down and out and is likely to be injured during inferolateral needle blocks...
March 2012: Ophthalmic Surgery, Lasers & Imaging
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