Clinical outcome following total laryngectomy for cancer

Patients with advanced cancers of the larynx and hypopharynx have been treated with total laryngectomy at the Department of Head and Neck Surgery, Royal Prince Alfred Hospital, Sydney in the past. Increasingly, these patients are being managed with organ-sparing protocols using chemo-therapy and radiotherapy. The aim of the present study was to review complication, recurrence and survival rates following total laryngectomy.

Patients who had total laryngectomy for squamous carcinomas of the larynx or hypopharynx between 1987 and 1998 and whose clinicopathological data had been prospectively accessioned onto the computerized database of the Department of Head and Neck Surgery, Royal Prince Alfred Hospital, were reviewed. Patients whose laryngectomy was a salvage procedure for failed previous treatment were included.

A total of 147 patients met the inclusion criteria for the study, including 128 men and 19 women with a median age of 63 years. Primary cancers involved the larynx in 90 patients and hypopharynx in 57. There were 30 patients who had recurrent (n = 24) or persistent disease (n = 6) after previous treatment with radiotherapy (26 larynx cases and four hypopharynx cases). Pharyngo-cutaneous fistulas occurred in 26 cases (17.7%) and, using multivariate analysis, the incidence did not correlate with T stage, previous treatment or concomitant neck dissection. Local control rates were 86% for the larynx and 77% for the hypo-pharynx groups and neck control was 84% and 75%, respectively. Five-year survival for the larynx cancer group was 67% and this was significantly influenced by T stage and clinical and pathological N stage. Survival in the hypopharynx group was 37% at 5 years and this did not significantly correlate with T or N stage. There was a non-significant trend to improved survival among previously treated patients whose laryngectomy was a salvage procedure.

Patients with cancer of the larynx had a significantly better survival following total laryngectomy than patients with hypopharyngeal cancer. Those whose laryngectomy was carried out as a salvage procedure following failed previous treatment did not have a worse outcome than previously untreated patients.