1992
DOI: 10.1590/s0037-86821992000400002
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Estudo radiológico longitudinal do esôfago, em área endêmica de doença de Chagas, em um período de seis anos

Abstract: Foi realizado estudo longitudinal de seis anos através do esofagograma, em 494 pessoas do projeto Mambaí, das quais 212 (43%) eram soropositivas. O estudo realizado em 1975176 e 1980/82 constou em ambas as ocasiões, de duas abreugrafias do esôfago: a prim eira, imediatamente após a ingestão de 75ml de solução baritada e outra 60 segundos após. Entre as 201 pessoas soropositivas normais no primeiro estudo, foram encontrados 4 (2%) casos novos de megaesôfago do Grupo I , e entre as 11 com megaesôfago, 2 dos Grup… Show more

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Cited by 12 publications
(5 citation statements)
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“…Megaesophagus is one of the clinical manifestations of the digestive form of Chagas disease, occurring in some 2% to 8.8% of patients in the chronic phase in Central Brazil 66 , developing in patients infected with T. cruzi clones that present preferential tropism for esophageal tissue muscle cells. One of the serious late consequences of megaesophagus is the increased risk of these patients developing esophageal carcinoma 49 .…”
Section: Chagas Disease Megaesophagus and Its Association With Esophamentioning
confidence: 99%
“…Megaesophagus is one of the clinical manifestations of the digestive form of Chagas disease, occurring in some 2% to 8.8% of patients in the chronic phase in Central Brazil 66 , developing in patients infected with T. cruzi clones that present preferential tropism for esophageal tissue muscle cells. One of the serious late consequences of megaesophagus is the increased risk of these patients developing esophageal carcinoma 49 .…”
Section: Chagas Disease Megaesophagus and Its Association With Esophamentioning
confidence: 99%
“…The digestive form seems to be absent from certain countries, such as Panama and Venezuela, 1,2 whereas in central Brazil, 2-8.8% of patients have megaesophagus. [3][4][5][6] The pathogenesis of chagasic megaesophagus may be related to host characteristics as well as to different strains of the parasite Trypanosoma cruzi. 7 One of the most important factors that determines both symptoms and complications of this clinical form is the denervation of the smooth muscle of the esophagus 8,9 causing several morphological and motor changes, according to which megaesophagi are classified by Grades I-IV.…”
Section: Introductionmentioning
confidence: 99%
“…The speed at which the disease progresses is variable (6,7) . In Brazil, Chagas disease is the main cause of achalasia, which affects 7-10% of individuals infected with T. cruzi (8) .…”
Section: Discussionmentioning
confidence: 99%
“…In both entities, the esophagus can present density in its vertical soft tissues, located along its right paramediastinal border, in frontal views (6,7,9,11) . In some cases, an air-fluid level or food residue can be observed within the esophagus.…”
Section: Discussionmentioning
confidence: 99%