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Lower esophageal sphincter pressure in Chagas' disease

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Abstract

It is known that lower esophageal sphincter (LES) pressure in patients with idiopathic achalasia is higher than in normal subjects, but in patients with Chagas' disease, who have esophageal disease with similar clinical, manometric, and radiologic results, studies of LES pressure show contradictory findings. We measured the LES pressure in 118 patients with chronic Chagas' disease, 14 patients with idiopathic achalasia, and 50 control subjects using a perfused catheter and the stationary pull-through (SPT) technique. The patients with Chagas' disease had normal esophageal radiologic examination (group A, N=50), delay in esophageal clearance without dilatation (group B, N=41), or delay in esophageal clearance with dilatation (group C, N=27). The LES pressure of Chagas' disease patients of group A (18.6 ±9.1 mm Hg, mean ±SD), group B (17.8 ±9.7mm Hg), and group C (21.6 ±10.1 mm Hg) was lower (P<0.001) than the LES pressure of the controls (24.9 ±10.2 mm Hg). In patients with idiopathic achalasia, the LES pressure (40.7 ±17.8 mm Hg) was higher than in control subjects (P<0.01) and Chagas' disease patients (P<0.001). We conclude that the LES pressure of patients with Chagas' disease tended to be lower than that of control subjects and achalasia patients.

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Authors and Affiliations

  1. Departamento de Clínica Médica, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo, Ribeirão Preto, 14049, São Paulo, Brazil

    Roberto O. Dantas MD, Renato A. Godoy MD, Ricardo B. Oliveira MD, Ulysses G. Meneghelli MD & Luiz E. A. Troncon MD

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  1. Roberto O. Dantas MD
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  2. Renato A. Godoy MD
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  3. Ricardo B. Oliveira MD
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  4. Ulysses G. Meneghelli MD
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  5. Luiz E. A. Troncon MD
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Dantas, R.O., Godoy, R.A., Oliveira, R.B. et al. Lower esophageal sphincter pressure in Chagas' disease. Digest Dis Sci 35, 508–512 (1990). https://doi.org/10.1007/BF01536927

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  • DOI: https://doi.org/10.1007/BF01536927

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