NDLI: Local Anesthesia With Blunt Sub-Tenon's Cannula Versus Sharp Retrobulbar Needle for Vitreoretinal Surgery: A Retrospective, Comparative Study.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Reichstein, David A. Warren, Clinton C. Han, Dennis P. Wirostko, William J.
Abstract	BACKGROUND AND OBJECTIVE: To evaluate the safety and efficacy of a blunt sub-Tenon's cannula for local anesthesia before vitreoretinal surgery compared to a sharp retrobulbar needle. PATIENTS AND METHODS: Retrospective, comparative study of all patients undergoing vitreoretinal surgery at the Medical College of Wisconsin between August 2009 and November 2013. Institutional review board approval was obtained. RESULTS: Of 940 surgeries performed with a sub-Tenon's cannula, 99% (938 of 940) were completed. Of the 771 surgeries performed with a sharp retrobulbar needle, 99% (770 of 771) were completed. Factors associated with use of a sharp retrobulbar needle over sub-Tenon's cannula were presence of prior scleral buckle (P < .01) and inclusion of scleral buckle placement in the procedure (P < .01). No case of globe perforation, severe retrobulbar hemorrhage, or severe conjunctival chemosis was observed in either group. CONCLUSION: Blunt sub-Tenon's cannula appears as effective and safe as a sharp retrobulbar needle for local anesthesia during vitreoretinal surgery. Vitreoretinal surgeons may wish to consider a blunt sub-Tenon's cannula for local surgical anesthesia.
File Format	HTM / HTML
ISSN	23258160
Issue Number	1
Volume Number	47
e-ISSN	23258179
Journal	Ophthalmic Surgery, Lasers and Imaging Retina
Language	English
Publisher	Healio
Publisher Date	2016-01-01
Publisher Place	United States
Access Restriction	Subscribed
Subject Keyword	Discipline Ophthalmology Discipline Surgery Anesthesia, Local Instrumentation Anesthetics, Local Administration & Dosage Catheters Needles Vitreoretinal Surgery Adolescent Adult Aged Aged, 80 And Over Methods Female Humans Lidocaine Male Middle Aged Retrospective Studies Tenon Capsule Drug Effects Young Adult Comparative Study Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Ophthalmology Surgery

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