Our experience in the management of petrous bone cholesteatoma

Karine Aubry1, Lana Kovac, Elisabeth Sauvaget

  • 1ENT Department, Assistance Publique des Hôpitaux de Paris (AP-HP), Lariboisière Hospital (AP-HP), Paris, France.

Insights

Management of petrous bone cholesteatomas in 28 patients revealed varied surgical approaches and outcomes. Endoscopic techniques offer minimal morbidity for petrous apex cholesteatomas, with good lesion control.

Area of Science:

  • Neurosurgery
  • Otolaryngology
  • Skull Base Surgery

Background:

  • Petrous bone cholesteatomas are rare, challenging lesions requiring specialized surgical management.
  • Both congenital and acquired cholesteatomas can lead to significant complications, including hearing loss and facial nerve palsy.

Purpose of the Study:

  • To analyze the surgical management, outcomes, and recurrence rates of petrous bone cholesteatomas.
  • To evaluate the effectiveness of different surgical approaches, including traditional and endoscopic techniques.

Main Methods:

  • Retrospective analysis of 28 patients with petrous bone cholesteatoma treated between 1991 and 2008.
  • Surgical approaches included lateral transtemporal, middle fossa, and endoscopic transsphenoidal routes.
  • Outcomes assessed included age, complications, and recurrence rates with a mean follow-up of 5 years.

Main Results:

  • 96% of patients presented with hearing loss and 37.5% with facial nerve palsy.
  • Postoperative complications included facial nerve palsy, cranial nerve paresis (XII, X), and deafness.
  • Twenty patients (71%) had no long-term recurrence; endoscopic transsphenoidal approach showed minimal morbidity for petrous apex cholesteatomas.

Conclusions:

  • Petrous bone cholesteatoma surgery is complex, with varied approaches based on lesion classification.
  • Traditional lateral transtemporal and middle fossa approaches remain relevant.
  • Endoscopic transsphenoidal surgery represents a minimally invasive option for petrous apex cholesteatomas, offering satisfactory control with reduced morbidity.

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