Search Results

You are looking at 1 - 10 of 19 items for :

  • "retrobulbar block" x
  • Refine by Access: All Content x
Clear All

is the inferotemporal retrobulbar block. 3 While technically simple, these procedures take skill to perform and do carry risk, albeit low. 4 Risks reported in physician literature include perforation of the globe, hemorrhage, nausea, respiratory

Free access
in Journal of the American Veterinary Medical Association

associated risks. 1 – 5 Retrobulbar injection or “retrobulbar block” (RB) performed via the supraorbital fossa is commonly cited as an effective locoregional technique in horses. 4 , 5 A previous study 6 showed that RB using 10 mL of 2% lidocaine

Restricted access
in Journal of the American Veterinary Medical Association

: 10.1111/vop.12652 10.1111/vop.12652 12. Schäffer DPH , da Silveira CPB , Nunes N , Selected ophthalmic and physiologic parameters in rabbits ( Oryctolagus cuniculus ) submitted to retrobulbar block with lidocaine, morphine or ketamine

Open access
in American Journal of Veterinary Research

Abstract

Objective—To use magnetic resonance (MR) imaging to describe and compare the anatomic distribution of a lipid contrast medium injected via the retrobulbar and Peterson nerve block techniques in heads of bovine cadavers.

Design—Original study.

Sample—5 grossly normal heads obtained from cattle at necropsy.

Procedure—Standardized techniques for the modified retrobulbar and Peterson nerve blocks were established. Each cadaver had 1 treatment performed on a randomly selected side of the head; the second treatment was performed on the alternate side of the head. Injections were performed with canola oil, which is an MR-positive contrast medium. Images of heads in the transverse and dorsal planes were obtained with a 3.0 Tesla short-bore MR system.

Results—The retrobulbar technique was characterized by widespread distribution of the contrast medium around the periorbital structures; further distribution of the medium was detected along the optic nerve and in the ethmoid turbinates and nasopharynx. After the Peterson nerve block technique, contrast medium was repeatedly located in the pterygopalatine fossa, but distribution to surrounding structures was minimal.

Conclusions and Clinical Relevance—Results indicate that the retrobulbar injection technique results in a greater distribution of contrast medium to the target nerves and surrounding structures, compared with that achieved via the Peterson nerve block technique. This may explain the previously reported clinical impression that the retrobulbar block is more reliable than the Peterson nerve block but is associated with a greater risk of complications. (J Am Vet Med Assoc 2003;223:852–855)

Full access
in Journal of the American Veterinary Medical Association

necessitate longer monitoring time in the recovery period and delay discharge from the hospital. 3 A retrobulbar block (ie, injection of local anesthetic in the retrobulbar space) is a simple, effective method of providing analgesia to the eye, which can

Full access
in Journal of the American Veterinary Medical Association

complications ( P = 0.007). The occurrence of postanesthetic colic was significantly associated with preoperative administration of fluconazole ( P ≤ 0.001) and with administration of ≥ 10 mL of 2% lidocaine when performing a retrobulbar block ( P = 0

Full access
in Journal of the American Veterinary Medical Association

, et al. Retrobulbar block in combination with general anesthesia for equine ophthalmic surgery . Vet Surg 1986 ; 15 : 139 – 141 . 10.1111/j.1532-950X.1986.tb00189.x 21. Ravan N Azari O Molaei M. Xylazine-lidocaine combination for

Full access
in American Journal of Veterinary Research

Greenbaum used in subtenoniana anesthesia technique can increase the cost of the procedure, which is high, compared with the cost of with peribulbar or retrobulbar blockade. 7 For a retrobulbar block, the anesthetic agent is administered within the

Full access
in American Journal of Veterinary Research

anesthetics administered as a preoperative retrobulbar block may be useful in preventing OCR during surgical manipulation of the eye and surrounding tissues in dogs. The authors further recommended that in the presence of an OCR, surgery is best halted until a

Full access
in Journal of the American Veterinary Medical Association

Ackerman N . Retrobulbar injections in the dog: a comparison of three techniques . J Am Anim Hosp Assoc 1978 ; 14 : 490 – 498 . 11. Pennsylvania Patient Safety Advisory . Complications of retrobulbar blocks . Available at

Full access
in Journal of the American Veterinary Medical Association