Volume 100, Issue 1
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645



Chagas disease (CD), caused by infection with the parasite , leads to severe cardiomyopathy in 20–30% of patients, whereas the remainder may stay asymptomatic and never develop cardiomyopathy or other clinical manifestations. The underlying cause for this variable outcome is not fully characterized, although previous studies have found high levels of circulating mannose-binding lectin (MBL) to be associated with cardiac failure echocardiographic changes. We report three indeterminate (asymptomatic) chronic Chagas patients who were followed up for 10 years. Two of these patients developed chronic chagasic cardiomyopathy (CCC) during this follow-up period and, when genotyped, were found to be carriers of the high MBL producer / genotype, suggesting that genetically determined high MBL serum might be associated with the risk of CCC development. These results suggest the use of MBL quantification and genotyping as tools for clinical assessment in patients with chronic CD.


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  • Received : 06 Sep 2017
  • Accepted : 13 Apr 2018
  • Published online : 03 Dec 2018

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