Megaesófago como complicación de acalasia: reporte de caso y revisión narrativa de la literatura

Megaesophagus occurs in between 5% and 20% of patients with achalasia. It is a primary esophageal motordisorder that has been known for more than 300 years. It should be considered in all patients with dysphagiathat is not explained by an obstructive or inflammatory process after a detailed endoscopic study. The following is the case of a patient with progressive dysphagia, in whom megaesophagus was documented as acomplication of untreated, long-standing achalasia. Chagas disease was ruled out by enzyme immunoassay(ELISA) and indirect immunofluorescence (IF), as recommended by current guidelines. Given the low frequency of this entity in our environment and the therapeutic implications for patients with achalasia, a narrative literature review was carried out to describe its diagnosis and treatment alternatives.