DIGEST Scale Predictis More Quality of Life Than PAS: the Residue Influence on Supracricoid Laryngectomy

Introduction Supracricoid laryngectomy (SCL CHEP) removes ∼ 70% of the larynx, resulting in structural rearrangement and modification of the swallowing mechanism, promoting chronic dysphagia. One of the consequences of this new physiology is the formation of pharyngeal residues that can increase the possibility of aspiration. The formation of residues after SCL CHEP, its functional consequences, and its influence on quality of life (QOL) is still poorly described in the literature. Objective To investigate and compare the association between self-reported QoL and objective assessments of swallowing function in patients undergoing SCL CHEP. Methods A cross-sectional study was performed from 2018 to 2020 in a reference service for head and neck surgery in Brazil. A total of 860 swallowing videofluoroscopy images were evaluated using the Penetration and Aspiration Scale (PAS) and Dynamic Imaging Grade of Swallowing Toxicity (DIGEST). Results In a group of 86 patients, there was a significant relationship between oncological staging and the global (p < 0.001) and total (p = 0.002) QoL domains. There was a negative correlation between the DIGEST scale and the emotional domain of the QoL protocol (p = 0.045). The swallowing function proved to be relevant for QoL. Conclusion The PAS scale did not show any correlation with QoL. The functional performance of swallowing according to the DIGEST scale was coherent with the QOL scores. It is suggested that the residue may be a more relevant aspect for QoL than the aspiration, making DIGEST a promising tool in the assessment of dysphagic patients.