Utility of video fluoroscopic swallow study in advancing oral diet post TORS for oropharyngeal malignancies

Abstract

Objective: TORS is a minimally invasive surgical alternative to chemoradiotherapy for oropharyngeal malignancies. While early postoperative oropharyngeal dysphagia is linked to TORS, this study explores both subjective and objective swallowing outcomes.

Study design: Retrospective and prospective review of the patients who underwent TORS for oropharyngeal malignancy from 2018 to 2023.

Setting: Single tertiary referral center.

Methods: Postoperative transnasal feeding tubes were administered to 142 patients undergoing TORS. Data on oncological, clinical, surgical, and pathological parameters, including VFSS records, pain with swallow, and feeding tube removal timing, were collected. Clinical swallow exam (CSE) was conducted on POD-1, with a formal swallow study pursued if inconclusive. Once a safe swallow was confirmed, oral diets were initiated, and the feeding tube removed, with most patients discharged on POD-2.

Results: At an average age of 59.3 years on the day of operation, the palatine tonsil (N = 101) was the predominant subsite. A dobhoff feeding tube was intraoperatively placed in 98 % of patients (N = 139). On POD-1, CSE was conducted in 119 patients, with 26 % (37/119) cleared for total oral diet (NOMS ≥ 4). Additionally, 30 out of 73 VFSS patients were cleared for total oral diet. A total of 54.9 % (78/142) had the feeding tube removed before discharge on POD-2, with a mean time of 6.5 ± 6.6 days. Overall, 71.1 % (101/142) achieved a total oral diet within one week after TORS.

Conclusion: Early post-TORS swallowing is vital for oropharyngeal malignancies. VFSS assesses post-operative swallowing safety, allowing most patients to resume total oral nutrition shortly after TORS.

Keywords: Difficult airway; Feeding tube; Head and neck cancer; Transoral robotic surgery.