Association of Percutaneous Endoscopic Gastrostomy (PEG) Tube Placement with Unplanned Hospitalization for Head and...

There is a varying need for nutritional support among head and neck cancer (HNC) patients. Unplanned hospitalization is frequent with definitive chemoradiation. However, the association of unplanned hospitalizations with cancer control outcomes and percutaneous endoscopic gastrostomy (PEG) tube placement is not well-understood. This study aims to evaluate the clinical outcomes stratified by unplanned hospitalizations and to identify the prognostic factors associated with unplanned hospitalizations.

This retrospective cohort study included 657 HNC patients treated with definitive chemoradiation at a single institution between 2007 and 2023. Relevant clinical data were evaluated for unplanned hospitalizations, prophylactic vs. therapeutic PEG tube placement, and clinical outcomes. Multivariable, subgroup, and matched-pair analyses were performed to account for potential confounding variables. The main outcomes and measures used are overall survival (OS), progression-free survival (PFS), locoregional failure (LRF), distant failure (DF), and incidence of unplanned hospitalization.

Unplanned hospitalizations occurred in 190 (29%) patients, which were associated with worse OS (adjusted hazards ratio [aHR] of 2.07, 95% confidence interval [CI] of 1.53-2.81, p < 0.001) and progression-free survival (aHR 1.83, 95% CI 1.38-2.41, p < 0.001). However, hospitalizations were not associated with LRF or DF outcomes. Similar findings were noted on 180 matched pairs as well as subgroups stratified by p16 status. In addition, when compared to patients with a prophylactic PEG tube, therapeutic PEG tube placement was associated with a higher risk of hospitalization (adjusted odds ratio [aOR] of 1.96, 95% CI 1.10-3.54, p = 0.02), while those without PEG tubes were less likely to be hospitalized (aOR 0.48, 95% CI 0.27-0.86, p = 0.01).

Unplanned hospitalization was an independent, adverse prognostic factor for poor survival, but not oncologic outcomes. Unplanned hospitalization incidence was largely driven by those who required a therapeutic PEG tube, while it was the lowest for those who never needed a PEG tube.