Tonoli S, Magrini SM, Costa L, Paiar F, Simontacchi G, Scotti V, Pasinetti N, Barca R, Barbieri D, De Stefani A, Cellai E, Buglione M, Biti G. A benchmark study on 883 nasopharyngeal cancer patients treated in two Italian centres from 1977 to 2000. Part I: Evolving technical choices and survival.
Radiol Med 2011;
117:690-714. [PMID:
22095424 DOI:
10.1007/s11547-011-0755-9]
[Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2011] [Accepted: 05/06/2011] [Indexed: 11/25/2022]
Abstract
PURPOSE
The authors sought to define treatment results according to the different accrual periods and clinical-therapeutic features in a large series of nasopharyngeal cancer (NPC) patients treated in two Italian centres over more than two decades.
MATERIALS AND METHODS
A total of 883 patients consecutively treated with radiotherapy between 1977 and 2000 at the Florence (FLO) and Brescia (IRA) Radiation Oncology centres were studied. Five-year overall (OS) and disease-specific (DSS) actuarial survival rates in the different pathological, clinical and therapeutic subgroups were calculated, along with the actuarial local-regional control (LRC) probability.
RESULTS
At univariate analysis, survival and local control rates were significantly better in the more recent accrual periods and in the more favourable disease presentations; treatment-related parameters mainly affect LRC. At multivariate analysis, patient- and disease-related factors had a more evident prognostic effect than did therapeutic factors, although dose to the nasopharynx and treatment technique had a marginally significant impact on DSS and OS.
CONCLUSIONS
Results of this benchmark study may be useful for understanding the development of new radio-therapy techniques for NPC, such as three-dimensional conformal radiotherapy (3D-CRT) and particularly intensity-modulated radiotherapy (IMRT).
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