[Dengue caused life-threatening arrhythmia]

Dengue is a mosquito-borne viral disease found in tropical and sub-tropical climates worldwide. Due to globalization and climate change dengue is an increasing global concern. Symptoms typically appear 3-14 days after inoculation by the Aedes mosquito and most commonly manifests as a self-limiting febrile illness. However, in severe dengue, plasma leakage may be profound and result in hemorrhage, disseminated intravascular coagulation and circulatory collapse. The dengue virus may also cause organ dysfunction. Cases of myocarditis, myocardial dysfunction and arrhythmias including atrioventricular block have been reported. The atrioventricular block often resolves spontaneously but pharmacological and pacing support may be required. We report a case of dengue in a patient who was admitted to a Swedish hospital after visiting India. In this case total atrioventricular block without ventricular escape rhythm resolved spontaneously and no pacemaker was necessary.