[Myocarditis in children affected by dengue hemorrhagic fever in a teaching hospital in Colombia].

Objective: To determining myocarditis frequency in children suffering from DHF in the Huila region of Colombia.
Methods: This was a descriptive and prospective study which was carried out between March 2005 and October 2005 involving 102 patients suffering from DHF, based on WHO criteria. These children were followed-up to identify signs of myocarditis.
Results: 10.7 % of the children had signs of myocarditis; one of them was classified as having dengue II and the other ten were classified as suffering form dengue III and IV. This difference was statistically significant (p=0.0004). 10 patients had fulminant myocarditis and required early inotropic support. Two patients had tachyarrythmias in the EKG (one SV and one ventricular); the others had sinusal bradichardia and low voltages. Echocardiograms were perfomed on 50 % of the children, revealing pericardial leakage grade I and II in two patients, one with very diminished EF and AF. Average hospital stay was 7 days. 10 had satisfactory outcome whereas one died.
Conclusion: This series of cases in children reinforces the association between myocarditis and dengue viral infection.