Orbital Complications of Acute Invasive Fungal Rhinosinusitis: A New Challenge in the COVID-19 Convalescent Patients

Abstract

Purpose: Increased incidence of acute invasive fungal rhinosinusitis (AIFR) in the setting of COVID-19 is undeniable. This can be attributed to its effect on innate immunity and extensive use of corticosteroids. The goal of our study was to assess the orbital complications of AIFR and its management in the COVID-19 convalescent patients. Methods: Our longitudinal prospective study included 45 patients with orbital complications of AIFR in recently recovered COVID-19 patients. We performed otorhinolaryngological, ophthalmological, and neurological examinations to monitor the manifestations of the disease. Computed tomography and contrast enhanced magnetic resonance imaging were performed to detect the extent of infection. Antifungal medications, surgical intervention, and general condition management were all provided to all the patients. Results: We reported pre-septal cellulitis, orbital cellulitis, and orbital apex syndrome in 18, 13, and 10 patients, respectively. Four patients had cavernous sinus thrombosis. Mucormycosis and Aspergillus species were detected in 80% and 11.11% of our patients, respectively, while the mixed infection was found in 8.88% of our patients. Diabetes mellitus was the most common cause of immunocompromise (95.55% of our patients). Orbital pain and ophthalmoplegia were the most common ocular manifestations, followed by proptosis and relative afferent pupillary defect. All patients underwent surgical intervention, except for one patient who was unfit for surgery. One patient had orbital exenteration. The ophthalmological manifestations were reversible in cases of orbital and pre-septal cellulitis. The overall survival rate was 66.67%. Conclusion: Early diagnosis and treatment of AIFR can decrease the morbidity and mortality rate of affected patients.