Resumen

SAKATE, Makoto et al. A new method for evaluating the esophageal transit time with external approach by ultrasonography. Radiol Bras [online]. 2008, vol.41, n.5, pp. 309-312. ISSN 0100-3984.  http://dx.doi.org/10.1590/S0100-39842008000500008.

OBJECTIVE: To utilize ultrasonography for evaluating the esophageal transit time as well as the esophagus capability of differentiating among non-solid substances ingested (water and yoghurt). MATERIALS AND METHODS: Twenty-two young adults of both sexes with no gastric or esophageal complaint were evaluated, with a B-mode 3.5 MHz, convex transducer placed over the epigastric area. The esophageal transit time was determined by means of a chronometer activated when the deglutition was initiated (glottic movement), and stopped upon visualization of the bolus through the intra-abdominal esophagus. RESULTS: The mean esophageal transit time for water was 6.64 ± 1.83 sec, and 8.59 ± 2.70 sec for yoghurt. The comparative statistical analysis by a t-paired test has demonstrated statistically significant differences between the mean esophageal transit times for the two substances. CONCLUSION: This new experimental method for evaluating the esophageal transit time by ultrasonography demonstrates significant differences in the time required for a determined liquid or pasty food passing through the esophagus, elucidating clinical suspicions and allowing a more precise indication for further, more complex clinical studies.

Palabras llave : Ultrasonography; Esophageal transit time; Abdominal esophagus.