Circumferential petrosectomy for petrous apicitis and cranial base osteomyelitis

Area of Science:

• Otolaryngology
• Neurosurgery
• Infectious Diseases

Background:

• Petrous apicitis and cranial base osteomyelitis are severe infections requiring aggressive management.
• Surgical intervention is indicated for progressive disease, treatment failure, or impending complications.

Observation:

• A retrospective study of five patients with advanced petrositis or cranial base osteomyelitis was conducted.
• Patients underwent a modified circumferential petrosectomy, a technique designed to maximize infected temporal bone removal while preserving critical neural structures.

Findings:

• All five patients achieved complete disease resolution following surgery and culture-directed antibiotic therapy (6-10 weeks).
• Post-operative follow-up (at least 1 year for four patients) revealed no hearing loss or facial nerve dysfunction.
• Surgical modifications were tailored to individual disease extent, involving the petrous apex or jugular foramen.

Implications:

• Circumferential petrosectomy offers a viable surgical option for refractory petrositis and cranial base osteomyelitis.
• The procedure allows for extensive debridement of infected bone, crucial for eradicating life-threatening infections.
• Preservation of auditory and facial nerve function is achievable with this technique, improving patient outcomes.