A 40-year-old previously healthy man was treated for dengue haemorrhagic fever (DHF), with a positive NS1 antigen test on day 2 of fever and sonographic evidence of fluid leakage into the hepatorenal pouch on day 6. A routine ECG done during the peak of the febrile phase of the DHF showed “coved” ST segment elevations in lead V1 which is characteristic of type 1 Brugada syndrome (Figure 1 and Figure 2A). However, the patient did not have any cardiac symptoms, nor did he report any personal or family history of premature cardiac events. His echocardiogram, serum troponin I and electrolytes were normal. The ST segment elevation on ECG completely resolved parallel to the resolution of fever (Figure 1 and Figures 2B and 2C).
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