[Surgical outcomes of petrous bone cholesteatoma]

The clinical data of petrous bone cholesteatoma (PBC) patients who underwent surgical treatment at Beijing Friendship Hospital, Capital Medical University, between January 2015 and December 2024 were retrospectively analyzed. A total of 45 patients aged (37.4±15.2) years were included, with 21 males and 24 females. Surgical approaches were selected according to Sanna classification and preoperative facial and auditory function. Facial nerve interventions were required in 34 cases, while hearing reconstruction was performed in six cases. The median (Q₁, Q₃) follow-up duration was 26 (12, 53) months, with seven cases of recurrence. Meanwhile, facial nerve function improved in six cases, hearing improvement was observed in four patients, and air conduction thresholds improved by 15-30 dB HL. The current article suggests that PBC presents with non-specific clinical manifestations. Selection of the surgical approach should be guided by the Sanna classification, aiming to completely remove the lesion while preserve facial and auditory function, and minimize postoperative complications and recurrence risk.