Abstract 2149: A New Epidemic of Myocarditis. Acute Chagas Disease due to Oral Infection in a Major Latin America City. Electrocardiographic Changes in 121 Cases
Chagas disease affects more than 20 million people in Latin America most of them poor. Even some decrease in transmission has been achieved in most of the LA countries, recently acute cases especially by oral transmission has been reported. To the best of our knowledge this is the major report of acute Chagas disease due to oral transmission reported until the date. To present the largest outbreak of acute Chagas disease due to oral transmission ever recorded with emphasis on ECG changes Analysis of a consecutive series of 121 cases of acute Chagas disease that occurred in Caracas in December 2007. Acute Chagas disease was confirmed by IgG,IGM determination. ECG patterns were analyzed in each patient. Results were analyzed using descriptive statistics. 65% of the population are younger than 18 years old (average 9,5years) 24% older than 18 years old (average 44,23 y). Of the 121ECG , 51 (44%) were normal, 66 (56%) have some abnormalities and 4 (4%) were not available. The abnormalities presented were: ST-T wave alterations 67%.Fascicular block 9%, AV Block 3%, Supraventricular arrhythmias 8%, ventricular arrhythmias 3%, low voltage 7%, QT prolongation 3% Acute Chagas disease produces ECG changes in 56 % of the patients. The most frequent alteration was ST-T wave abnormalities. These alterations have not been previously reported and may represent an hyperacute phase of Chagas disease.