The patient was brought back to surgery post op day 3 to have seeg electrodes replaced due to increasing artifact occurring on the eeg tracing.These artifacts started occurring on post op day 1.A total of 8 electrodes were replaced, four 8 contact and four 12 contact electrodes.Specific lot numbers for each electrode were not tracked, but electrodes from the following lots were removed.Lot numbers for the 8 contact electrodes were 0156088807808809, 0156892810811812, 0156947810811812, lot numbers for the 12 contact electrodes were 0155369804805806, 0155859804805806, 0157433810811812, 0159437819820821, 0159595819820821.
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