The Impact of Nasogastric Feeding Tube on Physiologic Swallow in Head and Neck Cancer Patients: A Multidisciplinary Clinical Trial

Abstract

<h3>Purpose/Objective(s)</h3> Nasogastric feeding tubes (NGT) are ubiquitous within the head and neck (H&N) cancer patient population. NGT are often placed in post-surgical H&N cancer patients to allow for healing of suture lines in oral cavity and oropharyngeal free flap patients and are also used in transoral robotic surgery (TORS) patients. Despite their widespread use, the impact of NGT on the physiologic swallow of H&N cancer patients remains unknown. In the neurology literature, there is data demonstrating alterations in the functional swallow of elderly post-stroke patients with NGTs. This showed significant differences in pharyngeal transit time of an ingested barium bolus, with increased barium residue in the vallecula and pyriform sinus with the NGT in place, suggesting the NGT itself plays a role in altering physiologic swallow. The goals of the present study are twofold: 1: Determine the effects of an indwelling NGT on swallowing function in head and neck surgery patients. We hypothesize that the NGT will impair the physiologic swallow function resulting in a higher likelihood of laryngeal penetration and aspiration. 2: Determine the effect of an NGT on head and neck surgery patients perceived ability to swallow. We hypothesize that the presence of the NGT will negatively affect participants perception of their own ability to swallow. <h3>Materials/Methods</h3> This study was approved by our institutional review board (clinical trial VICC HN 2102). A multidisciplinary team involving H&N surgeons, speech language pathologists, and radiologists were critical in the development of this project. This is a crossover trial in which participants serve as their own control. Inclusion criteria include adult patients who underwent oral cavity or oropharyngeal cancer surgery including TORS and received an NGT as part of their standard of care. Exclusion criteria included altered mental status, need for long-term enteral feeding (i.e. NGT could not be safely removed to allow the patient to receive all nutrition via oral intake) and total or partial laryngectomy. Participants will complete two surveys about their subjective swallow, the Sydney Swallow Questionnaire and a 5-question supplemental survey utilizing a visual analog scale. They will undergo a video fluoroscopic swallow study (VFSS) with the NGT in place with thin and thick barium consistencies. The NGT is then removed and the two surveys and VFSS are repeated without the NGT in place. Objective measurements collected during the VFSS include oral, pharyngeal, and esophageal transit times and the penetration-aspiration scale scores. Ten of planned forty participants have been enrolled in the study. <h3>Results</h3> TBD <h3>Conclusion</h3> TBD