OMMAYA RESERVOIR

Description of Event or Problem

THE NEUROSURGERY RESIDENT ACCESSED THE OMMAYA RESERVOIR WITH A 25-GAUGE BUTTERFLY NEEDLE USING STERILE TECHNIQUE. APPROXIMATELY 2 ML OF CLEAR FLUID WAS REMOVED, THE NEEDLE WAS WITHDRAWN, AND PRESSURE WAS MAINTAINED FOR 3 MINUTES. NO FLUID LEAKAGE WAS OBSERVED AFTERWARDS. UPON COMPLETION OF THE PROCEDURE, THE OMMAYA RESERVOIR COULD NOT BE PALPATED. A CT OF THE HEAD WAS OBTAINED AND IT FOUND THE RESERVOIR WAS NOW LOCATED WITHIN THE VENTRICLE.