Subdural Effusion in Dengue Patient as A Late Neurological Complication: A Rare Case Report

Dengue is the most common and widespread arthropod borne arboviral infection in the world today. Recent observations indicate that the clinical profile of dengue fever is changing with neurological manifestations being reported more frequently. A 50-year-old male patient was admitted with fever and thrombocytopenia. He was diagnosed as dengue fever with positive IgM dengue serology. Patient was managed medically in the ward for seven days and observed for any complications. Fever subsided since third day of admission and platelet count started to improve; he had no complication of dengue fever and was discharged in stable condition. However, patient again came back to emergency with two episodes of generalized tonic clonic seizures followed by altered sensorium. Emergency NCCT head and later MRI brain revealed bilateral subdural effusion. Patient was managed with antiepileptic drugs and anti-oedema measures were taken. Patient showed improvement in sensorium after 48 hours of admission. Later after six weeks NCCT and MRI brain revealed complete resolution of subdural effusion.