A long-term follow-up study after split-course irradiation with concurrent chemotherapy (carboplatin) for locally advanced head and neck cancer and a review of the literature.
BACKGROUND
Radiotherapy is often the primary treatment for advanced head and neck cancer, but the rates of locoregional recurrence are high and survival is poor. The purpose of this study was to evaluate the efficacy and toxicity of split-course radiotherapy combined with concurrent carboplatin chemotherapy after long-term follow-up.


METHODS
From August 1987 to May 1994, 66 patients (54 males, 12 females, mean age 58 years) with advanced inoperable oropharynx cancer were treated at the University of Göttingen, Göttingen, Germany. Tumour localization in the oropharynx was: tonsil (n = 33), base of tongue (n = 28), soft palate (n = 2) and posterior pharyngeal wall (n = 3). Forty-nine patients presented with a T(4) tumour, 15 were T(3) and 2 were T(2). The nodal status was distributed as follows: N0 (n = 7), N1 (n = 5), N2 (n = 28) and N3 (n = 26). A total radiation dose of 5,670 cGy was applied in 6 weeks as a split-course regimen (2 x 2.1 Gy/day, 4 times a week, weeks 1 and 2 and weeks 5 and 6). Concomitant carboplatin chemotherapy was given each radiotherapy day before irradiation (50 mg/m(2)).


RESULTS
In December 2003, 12 patients were still alive. Survivors have reached a maximum follow-up of 170.5 months (median 14.3 months). Two- and 5-year overall survival was 32 and 18%, 2-year disease-free survival 27%. Therapy was tolerated moderately (19% grade 3 skin reaction, 26% grade 3 mucositis, 23% grade 3 xerostomia, 20% grade 3 leucopenia, 8% grade 3 thrombopenia and 25% grade 3 anaemia).


CONCLUSIONS
Split-course radiotherapy and concomitant carboplatin chemotherapy can be carried out in inoperable head and neck cancer without severe toxicity. After long-term follow-up, survival rates are unfavourable in this poor prognostic group of patients.
Pradier
Olivier
O
Department of Radiotherapy, University of Gottingen, Gottingen, Germany. opradie@gwdg.de
Christiansen
Hans
H
Ambrosch
Petra
P
Kron
Martina
M
Schmidberger
Heinz
H
Hess
Clemens F
CF
D000328:Adult; D000368:Aged; D000970:Antineoplastic Agents / Q000009:adverse effects / Q000627:therapeutic use*; D016190:Carboplatin / Q000009:adverse effects / Q000627:therapeutic use*; D002294:Carcinoma, Squamous Cell / Q000628:therapy*; D017024:Chemotherapy, Adjuvant / Q000379:methods; D018572:Disease-Free Survival; D005260:Female; D005500:Follow-Up Studies; D006258:Head and Neck Neoplasms / Q000628:therapy*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D018714:Radiotherapy, Adjuvant / Q000379:methods; D016896:Treatment Outcome
D000970:Antineoplastic Agents; D016190:Carboplatin