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Sociodemographic and Clinico-laboratory Profile of Expanded Dengue Syndrome: Experience from a Tertiary Hospital of Dhaka, Bangladesh.

Dengue is endemic in more than a hundred countries throughout the tropics. The classic presentation of dengue fever has expanded its horizon by involving different organ systems, and these system-specific presentations pose a diagnostic dilemma. The objective of this prospective observational study was to evaluate the sociodemographic, and clinical profile of expanded dengue syndrome (EDS) patients admitted to a tertiary hospital in Dhaka, Bangladesh. Data were collected from all admitted patients from April 2019 to September 2019 and diagnosed with dengue. The patients with dengue having EDS were followed up till discharge. Of 4200 dengue cases admitted during this period, 108 patients (2.57%) were diagnosed with EDS. Among the EDS cases, 94% were from Dhaka city, and 6% were outside Dhaka city; 66% of the patients were male. Gastrointestinal (GI) manifestations were the most common (87%) type of EDS, and among the GI presentations, acute acalculous cholecystitis (38.3%), acute pancreatitis (30.85%), acute hepatitis (21.27%) were the most frequent. Among the EDS cases, 5.55% had a central nervous system (CNS), 4.6% cardiovascular (CVS), and 1.88% had renal complications; 0.93% presented with myositis. The majority (90.74%) of the patients recovered with conservative management, 10 (9.26%) died. This study shows that expanded dengue syndrome (EDS) is not uncommon in Bangladesh's dengue viral infection. A high degree of clinical suspicion is the key to early diagnosis and treatment.