Salvage surgery for recurrent advanced stage head and neck squamous cell carcinoma (HNSCC) is known to result in poor prognosis. As there are only small and heterogeneous studies available with wide variety in outcome measures, our purpose was to select and pool literature according to specific criteria.
Salvage surgery for recurrent advanced stage head and neck squamous cell carcinoma after primary (chemo)radiotherapy is a good last resort curative treatment option, resulting in 37% overall survival at 5 years. As data from advanced stage non-laryngeal tumors were sparse, no solid conclusions can be drawn with regard to outcome differences between tumor subsites.
Systematic review and meta-analysis of clinical outcome after salvage surgery for recurrent advanced stage HNSCC following primary radiotherapy or chemoradiation.
16 of 3956 screened studies were included for analysis (729 patients). Pooled 5-year OS was 37% (95% CI 30-45%, 12 studies, 17 outcome measurements, 540 patients). Outcome was presented for larynx (6 studies, 397 patients), hypopharynx (2 studies, 47 patients), larynx and hypopharynx combined (3 studies, 69 patients) or separately (1 study, 134 patients), oral cavity (1 study, 11 patients), oropharynx (1 study, 34 patients) and multiple subsites combined (2 studies, 37 patients). There was no significant difference in survival outcome between subsites (pheterogeneity = 0.8116). The pooled tumor-positive resection margin rate was 32% and pooled re-operation rate 17%. Complication rates from the pooled data were: fistulas 33%, wound infections 24% and flap failure 3%. Treatment-related mortality rate was 1% and mean hospital stay was 23 days.
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