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A randomised controlled trial of periconal eye blockade with or without ultrasound guidance
Author(s) -
Najman I. E.,
Meirelles R.,
Ramos L. B.,
Guimarães T. C. F.,
Nascimento P.
Publication year - 2015
Publication title -
anaesthesia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.839
H-Index - 117
eISSN - 1365-2044
pISSN - 0003-2409
DOI - 10.1111/anae.12976
Subject(s) - medicine , ultrasound , blockade , randomized controlled trial , complication , surgery , significant difference , ophthalmology , radiology , receptor
Summary We randomly allocated 129 participants with normal eyes to periconal blockade with (n = 69) or without (n = 60) ultrasound guidance before cataract surgery. There was no difference in the rates of complication, 1/69 and 0/60, respectively, p = 1.0. The rate of intraconal needle placement was 1/69 with ultrasound and 12/60 without ultrasound, a relative risk (95% CI) of 0.07 (0.01–0.55), p < 0.0001.