ESTRO 2025 - Abstract Book

S975

Clinical – Head & neck

ESTRO 2025

Figure 2 Probability of death from aspiration pneumonia according to the threshold of swallowing structures. AP, aspiration pneumonia. Dmean, mean dose.

Conclusion: Higher radiation doses to the swallowing structures was associated with increased mortality due to aspiration pneumonia. The threshold determined in this study may help lower the risk of death from aspiration pneumonia.

Keywords: Oral cavity cancer; Aspiration pneumonia

References: 1. O'Hare J, Maclean J, Szczesniak M, Gupta R, Wu P, Quon H et al. Laryngeal tumours and radiotherapy dose to the cricopharyngeus are predictive of death from aspiration pneumonia. Oral Oncol. 2017;64:9-14. 2. Gawryszuk A, Bijl HP, van der Schaaf A, Perdok N, Wedman J, Verdonck-de Leeuw IM et al. Relationship between videofluoroscopic and subjective (physician- and patient- rated) assessment of late swallowing dysfunction after (chemo) radiation: Results of a prospective observational study. Radiother Oncol. 2021;164:253-60.