A retrospective study was performed to compare differences in hospital charges between monitored anesthesia care with retrobulbar block and general anesthesia among patients having vitrectomy. Of 128 consecutive patients undergoing vitrectomy between July 1996 and July 1997, group 1 received general anesthesia (n = 41), group 2 received monitored care anesthesia with retrobulbar block (n = 59),...

n engl j med 369;11 nejm.org september 12, 2013 1080 anticoagulants may prevent warfarin-induced skin necrosis but cannot be recommended yet. Finally, in reply to Grzybowski and Ascaso: the use of antithrombotic agents in ocular surgery remains highly controversial. The stated bleeding rate of 3% is excessive in modern cataract surgery. This avascular procedure, which is frequently performed wi...

Twelve thousand regional anaesthetics for cataract extraction and intraocular lens implantation surgery were administered by one anaesthetist over a period of 52 months in a free-standing outpatient surgical facility. The ophthalmologist, who did all the operations, assessed the quality of the blocks using an objective scoring system which is described. The first 3,595 patients had retrobulbar ...

Ten patients undergoing cataract surgery were given a local anaesthetic with lignocaine solution which was mixed with iohexol contrast medium. The location of the needle and the substance injected was determined by computerised tomography following retrobulbar or periocular anaesthesia. The retrobulbarly inserted needles were within the muscle cone, directed towards the optic foramen. The perio...

OBJECTIVE To compare the efficacy and efficiency of retrobulbar versus sub-Tenon's capsule injection of local anesthetic in vitreoretinal surgery. DESIGN Prospective, randomized, double-masked clinical trial. PARTICIPANTS AND INTERVENTION Sixty-four eyes from 61 patients undergoing vitreoretinal surgery were randomized to receive either retrobulbar or sub-Tenon's capsule injection of 5 ml o...

Posterior vitreous fluorophotometry measurements have been shown to be increased in patients with acute retrobulbar neuritis. We studied 12 patients who had optic neuropathy by posterior vitreous fluorophotometry, with and without correction for blood fluorescein concentration. Both uncorrected and corrected posterior vitreous measurements were increased in patients with inflammatory, obstructi...

BACKGROUND Peribulbar and retrobulbar anesthesia have long been opposed on the basis of the existence of an intermuscular membrane, which is supposed to separate the intraconal from the extraconal spaces in a water-tight fashion. A local anesthetic injected outside the cone should spread through this septum to reach the nerves to be blocked. The existence of this septum is questioned. The aim o...

OBJECTIVE To evaluate an indwelling temporary retrobulbar catheter for repeatable injections of local anesthetics for long-lasting and titratable retrobulbar anesthesia in intraocular surgery. PARTICIPANTS The prospective clinic-based study included 153 patients who underwent vitreoretinal surgery (n=111) or buckling procedures with cryocoagulation (n=34). The mean duration of surgery was 84....