TY - JOUR
T1 - Comparison of the prognostic value of assessing tumor diameter versus tumor volume at diagnosis or in response to initial chemotherapy in rhabdomyosarcoma
AU - Ferrari, Andrea
AU - Miceli, Rosalba
AU - Meazza, Cristina
AU - Casanova, Michela
AU - Favini, Francesca
AU - Morosi, Carlo
AU - Trecate, Giovanna
AU - Marchianò, Alfonso
AU - Luksch, Roberto
AU - Cefalo, Graziella
AU - Terenziani, Monica
AU - Spreafico, Filippo
AU - Polastri, Daniela
AU - Podda, Marta
AU - Catania, Serena
AU - Schiavello, Elisabetta
AU - Giannatempo, Patrizia
AU - Gandola, Lorenza
AU - Massimino, Maura
AU - Mariani, Luigi
PY - 2010/3/10
Y1 - 2010/3/10
N2 - Purpose: In this study on a series of 205 patients with rhabdomyosarcoma, we investigated whether the prognostic effect of tumor size, at diagnosis or in terms of tumor response after induction chemotherapy, differed when tumor diameter or tumor volume were considered. Patients and Methods: Tumor size was assessed radiologically at diagnosis and, for the 108 patients with measurable disease, after three courses of chemotherapy. The analysis was based on multivariable models (linear for association between size and patient/tumor characteristics, Cox for association with survival). The predictive performance of the Cox model (estimated by V measure) was compared for the tumor's diameter and volume. Results: Initial tumor size was significantly larger in male or older patients and in T2 or alveolar tumors, but was not associated with the achievement of complete surgical resection. Initial tumor size significantly influenced overall survival. The risk of death was comparable for tumors 10 cm in maximum diameter and 194.0 cm3 in volume. The predictive performance of the Cox model was much the same when the tumor's diameter or volume was considered. Tumor response was a significant predictor of survival, again irrespective of the type of tumor measurement considered. Conclusion: In our analysis, initial tumor size and tumor response were significant prognostic factors in rhabdomyosarcoma, regardless of whether tumor diameter or volume was considered. Three-dimensional tumor assessment was of no greater prognostic value than one-dimensional assessment, neither initially nor after induction treatment.
AB - Purpose: In this study on a series of 205 patients with rhabdomyosarcoma, we investigated whether the prognostic effect of tumor size, at diagnosis or in terms of tumor response after induction chemotherapy, differed when tumor diameter or tumor volume were considered. Patients and Methods: Tumor size was assessed radiologically at diagnosis and, for the 108 patients with measurable disease, after three courses of chemotherapy. The analysis was based on multivariable models (linear for association between size and patient/tumor characteristics, Cox for association with survival). The predictive performance of the Cox model (estimated by V measure) was compared for the tumor's diameter and volume. Results: Initial tumor size was significantly larger in male or older patients and in T2 or alveolar tumors, but was not associated with the achievement of complete surgical resection. Initial tumor size significantly influenced overall survival. The risk of death was comparable for tumors 10 cm in maximum diameter and 194.0 cm3 in volume. The predictive performance of the Cox model was much the same when the tumor's diameter or volume was considered. Tumor response was a significant predictor of survival, again irrespective of the type of tumor measurement considered. Conclusion: In our analysis, initial tumor size and tumor response were significant prognostic factors in rhabdomyosarcoma, regardless of whether tumor diameter or volume was considered. Three-dimensional tumor assessment was of no greater prognostic value than one-dimensional assessment, neither initially nor after induction treatment.
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U2 - 10.1200/JCO.2009.25.0803
DO - 10.1200/JCO.2009.25.0803
M3 - Article
C2 - 20124176
AN - SCOPUS:77950472843
VL - 28
SP - 1322
EP - 1328
JO - Journal of Clinical Oncology
JF - Journal of Clinical Oncology
SN - 0732-183X
IS - 8
ER -