Key result
Conservative management achieves spontaneous resolution of dengue-induced Mobitz type I AV block by day 4.
Why the study?
Dengue fever may cause cardiac manifestations including transient ECG abnormalities, but atrioventricular conduction disturbances are rarely reported in children.
Case Report (n=1)
No
This case report demonstrates that dengue fever in children can cause transient AV conduction abnormalities, including Mobitz type I second-degree AV block and junctional rhythm, which can resolve spontaneously and be safely tracked with conservative management and serial ECG monitoring.
Answers are grounded in this paper and cite their sources.
May support serial ECG monitoring for transient dengue AV block in children; hypothesis-generating, requiring prospective validation before practice change.
Background: Dengue fever may cause cardiac manifestations, including transient electrocardiographic (ECG) abnormalities.Atrioventricular (AV) conduction disturbances are rarely reported in children.Case Report: An 8-year-old boy with dengue fever and thrombocytopenia presented with an irregular cardiac rhythm.ECG revealed AV conduction delay, intermittent Mobitz type I second-degree AV block, and junctional rhythm.He remained hemodynamically stable and was managed conservatively with serial ECG monitoring.The abnormalities progressively resolved by day 4, and followup at 6 months showed normal sinus rhythm without residual conduction defects.Conclusion: Dengue fever may cause transient AV conduction abnormalities in children.This case highlights the importance of ECG assessment and serial monitoring to identify cardiac involvement and document recovery.
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N et al. (2026) conducted a case report in Dengue fever with transient atrioventricular conduction defects (n=1). Conservative management with serial ECG monitoring was evaluated on Resolution of atrioventricular conduction abnormalities. Conservative management with serial ECG monitoring in an 8-year-old boy with dengue-associated Mobitz type I AV block documented spontaneous resolution by day 4 and normal sinus rhythm at 6 months.
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