Local Anesthesia With Blunt Sub-Tenon's Cannula Versus Sharp Retrobulbar Needle for Vitreoretinal Surgery: A Retrospective, Comparative Study. Ophthalmic Surg Lasers Imaging Retina 2016 Jan;47(1):55-9
Date
01/06/2016Pubmed ID
26731210DOI
10.3928/23258160-20151214-08Scopus ID
2-s2.0-84954226086 (requires institutional sign-in at Scopus site) 3 CitationsAbstract
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.
Author List
Reichstein DA, Warren CC, Han DP, Wirostko WJAuthor
William Wirostko MD Professor in the Ophthalmology and Visual Sciences department at Medical College of WisconsinMESH terms used to index this publication - Major topics in bold
AdolescentAdult
Aged
Aged, 80 and over
Anesthesia, Local
Anesthetics, Local
Catheters
Female
Humans
Lidocaine
Male
Middle Aged
Needles
Retrospective Studies
Tenon Capsule
Vitreoretinal Surgery
Young Adult
