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Outcome Of Total Surgical Debridement Of Covid Associated Skull base Mucormycosis Based on a New Surgical Staging System: Evidence From A Cohort Study.

Kurup, L. R.; Singh, H.; Sharma, S.; Dehgani-Mobaraki, P.; Zaidi, A. K.; Janakiram, T. N.

2022-11-10 otolaryngology
10.1101/2022.11.04.22281828 medRxiv
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PurposeTo propose a surgical staging system with management protocol for post-covid Rhino-Orbito-Cerebral Mucormycosis (ROCM) with central skull base osteomyelitis. MethodsA prospective cohort study of post-covid ROCM patients between May 2021 and January 2022. Patients were assessed radiologically and staged from I to V. Follow up period was 6 to 18 months and the surgical outcome was assessed. ResultsTotal of 193 patients (129 primary and 64 revision). Maxilla was found to be the epicenter of anterior disease (69.3%) and pterygoid wedge, the epicenter of posterior disease (85.6%). More than 65% of our patients, at the time of presentation, presented with ROCM with involvement of the central skull base. Intracranial disease was noted in 13.9% of patients and the mortality rate was 6.2 %. ConclusionThis staging system provides a systematic step-by-step protocol for the management of ROCM, with emphasis on meticulous disease clearance at the central skull base.

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