Does a labyrinthine fistula in cholesteatoma surgery lead to hearing loss?

Thirty-five patients with labyrinthine fistula related to cholesteatoma were studied retrospectively. All patients underwent CT scans and preoperative hearing tests 1-2 weeks prior to surgery (averaged at 0.5, 1, 2, 3, 4, 8 kHz). All 35 patients underwent mastoid surgery,...