This study evaluated the motility of interposition in patients with esophageal carcinoma after different reconstructive operations of the esophagus using an esophageal radionuclide transit test. A modified standard method was used to calculate total mean transit time (MTT), residual fraction (RF), and retrograde index (RI) in the supine position at least 6 months after the reconstructive operations of the esophagus. Eleven patients with esophagogastrostomy (EG), 7 patients with esophagoiliocolostomy (EIC), and 25 normal volunteers with a similar distribution of ages were included in this study for comparison. The values of the scintigraphic parameters in patients with esophageal reconstruction were significantly worse than in normal volunteers (P 0.05). In addition, the MTT and RF in patients with EG were higher than in patients with EIC (P 0.05), but no significant difference in RI was demonstrated. In conclusion, the motility of interposition became worse after reconstructive operations, but reconstruction with the colon can preserve better motility than with the stomach
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