[Clinical use of conservative surgery in hypopharyngeal carcinomas]

Fifty-one cases of hypopharyngeal carcinoma treated with conservative hypopharyngectomy (CH) and 29 cases of total larygectomy hypopharyngectomy (the Control) were retrospectively analyzed. In patients with CH, laryngeal function restored completely in 36 cases, and partially in 15. Severe complication rate (including graft necrosis, fistulae and structure) was 23.5% (12/51). Successful deglutition rate was 98%; mean resumption of oral intake was 29 days (10-150 days) and mean hospitalization 40 days (16-160 days). Three-year survival rate was 58.8% and 5-year survival rate 49.0% (25/51). No significant difference was found between the patients with CH and the control in the aspects of severe complication rate, successful deglutition rate, mean resumption of oral intake, mean hospitalization and 5-year survival rate (P > 0.05).