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Journal of anesthesia · Oct 2012
Peribulbar block in patients scheduled for eye procedures and treated with clopidogrel.
- Emile Calenda, Olivier Genevois, Marc Muraine, Laure Lamothe, and Annie Cardon.
- Département d'Anesthésie Réanimation, Rouen University Hospital, Centre Hospitalier Universitaire de Rouen, 1 rue de Germont, 76031, Rouen cedex, France. emile.calenda@chu-rouen.fr
- J Anesth. 2012 Oct 1;26(5):779-82.
AbstractOur hypothesis was that the continuation of clopidogrel does not increase the risk of eye hemorrhage, compared to patients not treated with clopidogrel, when a peribulbar anesthesia is required. Our prospective case-control study enrolled two groups of 1,000 patients scheduled for intraocular eye surgery requiring a peribulbar block. Patients treated with clopidogrel were included in group A (1,000 patients). Patients who had never been treated with clopidogrel constituted the control group (group B, 1,000 patients). Hemorrhages were graded as follows: 1 = spot ecchymosis of eyelid and or subconjunctival hemorrhage; 2 = eyelid ecchymosis involving half the lid surface area; 3 = eyelid ecchymosis all around the eye, no increase in intraocular pressure; 4 = retrobulbar hemorrhage with increased intraocular pressure. Grade 1 hemorrhages were observed in 30 patients (3.0 %) in group A and in 20 patients (2.0 %) in group B. No grade 2, 3, or 4 hemorrhage was encountered. There was no significant difference in the grading of hemorrhage between the groups (p = 0.017). Clopidogrel was not associated with a significant increase in potentially sight-threatening local anesthetic complications.
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