A Brainstem Anesthesia after Retrobulbar Block Case Report and Review of Literature

Abstract

BACKGROUND: Retro-bulbar anesthesia is one of the most common regional blocks used forintraocular surgeries. Complications associated with regional blocks may be limited to the eye or may besystemic.CASE REPORT: After a retro-bulbar block for glaucoma surgery, a 60-year-old man developed loss ofconsciousness, apnea with hypotension and bradycardia-features of brainstem anesthesia. We presentthe clinical features, treatment and comments on how to prevent the problem as well as a review of theliterature on reported cases.CONCLUSION: Although it is rare, treating physicians should be aware of the potentially lethalconsequences of retro-bulbar block, understand measures to reduce the risks and early recognition andtreatment. Facilities where ophthalmic surgeries are performed under local anesthesia should beproperly equipped and staffed for advanced resuscitation.