Functional evaluation of the ileocolic sphincter transplanted to the neck using microsurgery technique: a manometric study in dogs

The usefulness of ileocolic sphincter (ICS) transplantation to the neck after a total laryngopharyngectomy was investigated in 12 mongrel dogs. The authors aimed to evaluate the influence of the transplantation on ICS pressure amplitude and ICS length, and on ICS resistance to intracecal pressure increase. Electromanometric measurements showed that ICS pressure amplitude and length presented no changes after the procedure. Also, there was no significant change in ICS resistance. However, long‐term follow‐up studies are needed to determine whether the ileocolic transition maintains the properties observed in the immediate post‐operative period.