Interpreting Mortality in COVID Associated Mucormycosis (CAM) : A Learning Experience from a Tertiary Care Centre

Mucormycosis has emerged as an important fungal infection with high associated mortality rates. Mucormycosis causes devastating angio-invasive fungal infections, primarily in patients with underlying risk factors. The prevalence of mortality associated with invasive Mucormycosis is high (>30-50%), with 90% mortality contributed by disseminated disease. Sudden rise in Mucormycosis cases during the COVID-19 pandemic came as a surprise to all. Lowered immunity due to COVID and associated conditions like diabetes, made the population susceptible to this dreaded disease. This disease led to both increase in morbidity and mortality among the general population. Aim of the Study : To interpret in detail the causes of mortality of patients presenting with COVID Associated Mucormycosis (CAM-19) at AIIMS Patna between May-November, 2021. Materials and Methods : An observational study of all patients who were treated for mucormycosis during the period of May 2021-Nov 2021 in ENT Department, AIIMS, Patna. During the period of study, 219 patients of RhinoOrbital-Cerebral Mucormycosis (ROCM) were admitted for treatment. Five patients had gone on Leave Against Medical Advice (LAMA). So, 214 patients were included in the study. Results : Among the 214 patients, 165 patients were treated surgically through both endoscopic and open approaches along with antifungal therapy management. 41 patients died during the hospital course of the treatment. The mortality rate of ROCM stood at 19.15% in our series. Pulmonary Mucormycosis had high mortality (100%). Diabetes is the most common risk factor. Multiple co-morbidities and extensive intracranial involvement had a strong association with mortality. Conclusion : The advanced stage of ROCM was associated with more deaths. Our series mortality rate of 19.15% is lower than most of the other documented mortality rates. Our results support that early aggressive surgical approach, antifungal therapy and multidisciplinary approach has reduced the mortality