Introduction: Transaminitis is a condition where serum aspartate transaminase and alanine transaminase increase indicating liver dysfunction. One such disease where liver involvement might be observed is dengue, which is a mosquito-borne viral infection. The aim of the study was to find out the prevalence of transaminitis among patients with dengue fever in a tertiary care centre.

Methods: A descriptive cross-sectional study was conducted in a tertiary care centre from 1 November 2022 to 31 March 2023 after obtaining ethical approval from the Institutional Review Committee. Informed written consent was taken before collecting the data. A rapid immunochromatography test was used to confirm dengue infection. Serum aspartate transaminase and alanine transaminase were measured through routine Reitman and Frankel's enzymatic method. Dengue-confirmed patients from the medical outpatient department, fever clinic, and medical ward of the centre were included in the study. Patients with known prior liver diseases or any other chronic diseases, pregnancy, and patients in the hospice unit were excluded. Convenience sampling method was used. The point estimate was calculated at a 95% Confidence Interval.

Results: Among 442 dengue infected patients, the prevalence of transaminitis was 188 (42.53%) (37.92-47.13, 95% Confidence Interval). The highest frequency of dengue positive was observed among the 18-35 years age group, which was 97 (51.59%) with male predominance 134 (71.27%).

Conclusions: The prevalence of transaminitis among patients with dengue fever in a tertiary care centre was found to be lower than other studies done in similar settings.

Keywords: alanine transaminase; aspartate transaminase; dengue.