Anaesthetic challenges of coronavirus disease (COVID-19) associated mucormycosis: A case series

Abstract

During the second wave of COVID -19 Indian subcontinent suffered another pandemic of covid associated mucormycosis (CAM) which further burderned the already overexhausted health care infrastructure. To share our experience of anaesthetic management of eighteen patients with covid associated mucormycosis who underwent surgical resection of necrotized tissues at a tertiary care hospital of North India. : Eighteen patients with COVID-19 infection or previous history of COVID-19 infection based on RT-PCR and histopathologically proven rhino orbital mucormycosis, presented for endoscopic and open surgeries during May and June 2021. According to institutional protocol, institutional ethical committee clearance was not required for a case series. Data regarding the demographic details, clinical manifestations, COVID-19 course, laboratory parameters, imaging reports, pre-operative evaluation, airway management, intraoperative and postoperative management, and complications were collected. Out of eighteen patients 12(66.7%) were male and six (33.33%) were female, with a median age of 51 years. Six patients (33.33%) had a past history of COVID-19, twelve patients had concurrent COVID-19 (66.66%). Most of the patients presented with unilateral facial swelling, retro-orbital pain, ptosis and headache. Fifteen (83.33%) patients had high blood sugars, seven (46.66%) were known type 2 diabetics and eight (53.33%) developed new-onset diabetes after taking prolong systemic corticosteroids. All eighteen patients received antifungal treatment,eight (44.44%)patients had derranged renal function tests with raised serum creatininine (2.4-2.8) and normal blood urea nitrogen. Eight (44.44%) of them had difficult airway because of swelling on face and limited mouth opening, two patients were reoperated (n=2/18). Three (27.27%) patients deveoped arrythmias and ST changes intraoperatively, two(n=2/18) patients were extubated next day after surgery, one patient was tracheostomised in view of preoperative difficult airway and extensive surgery. One fiftyfive year old covid positive female patient died on fifth postoperative day. : In our case series, all 18 patients had covid associated rhino-orbital mucormycosis, most of them had diabetes and hypertension, cerebrovascular accident, coronary artery disease, asthma and post KTP status. Twelve patients were covid positive and 6 had recent history of covid. One patient developed hemiparesis and one patient died because of intracranial extension of mucormycosis. Disseminated or cerebral mucormycosis, severe covid, elderly age group, associated comorbidities like uncontrolled diabetes and renal failure have been found to increases mortality in CAM patients. : Physicians caring for covid associated mucormycosis patients must be aware of the severity of the covid-19 as well as mucormycosis, associated comorbidities and various side effects of the medications used for treatment. Early diagnosis and timely medical and surgical management are necessary to improve outcome in covid associated mucormycosis.