Effects of Chin-Down Maneuver on the Parameters of Swallowing Function After Esophagectomy With 3-Field Lymphadenectomy Examined by Videofluoroscopy

Abstract Objectives To determine the effect of the chin-down maneuver after esophagectomy with 3-field lymphadenectomy (3FL) on pharyngeal residue, upper esophageal sphincter (UES) opening, and laryngeal closure. Design Prospective data were collected from a pharyngeal videofluoroscopic swallowing study. Setting Dysphagia clinics. Participants Patients selected according to the inclusion criteria (N=14; mean age, 65.9y) from a total of 43 patients who underwent esophagectomy with 3FL from May to December 2014 were enrolled. Interventions Videofluoroscopy was conducted in head-neutral and chin-down positions to measure the pharyngeal constriction ratio (PCR), amount of residue in the vallecula and pyriform sinus after the first swallow, UES opening diameter, duration of UES opening, and duration of laryngeal vestibule closure. Main Outcome Measures The aforementioned parameters were compared statistically between the head-neutral and chin-down positions. Results In comparison with the neutral group, the PCR and residue in the pyriform sinus were significantly smaller in the chin-down group ( P