Mucormycosis in post-covid patients: An epidemic in pandemic

Rhino-orbitol-cerebral mucormycosis (ROCM) is seen as a common post-coronavirus disease (COVID-19) fungal infection in India. It is a lethal, opportunistic infection of the paranasal sinuses and brain caused by fungi of the Mucorales, most commonly with Rhizopus spp. Early diagnosis and timely management are essential. Other studies have shown high mortality up to 25-60%. However, in this study, the recovery rate is very high. We aimed to present six post-COVID mucor cases and to review the literature in terms of prevention, diagnosis, and management of this fatal infection. We carried out a retrospective case series of six patients with a confirmed diagnosis of ROCM presenting to a single tertiary-level hospital during the second wave of covid 19 pandemic. Clinical details for each case was obtained from the hospital information system. A total of six patients (five males and one female) were diagnosed with ROCM during this period. Out of six patients, four had diabetes mellitus and all were on steroid treatment during COVID-19 infection. The most common presenting features were headache (100%), facial pain (80%), orbital swelling (80%), and earache (20%). Most of the patients had sinusitis as a predominant finding in preop magnetic resonance imaging (MRI) at presentation. All patients received liposomal amphotericin B (LAmB) as the first line of treatment and subsequently shifted to posaconazole. The overall recovery rate was 100% and patients were discharged. ROCM infection is very hard to treat. The studies have shown cases with late presentation spreading beyond paranasal sinuses. Early intervention and treatment with antifungals and extensive surgical debridement resulted in the full recovery of all six cases.