Published in:
01-03-2008 | Original Article
Standardized uptake value in para-aortic lymph nodes is a significant prognostic factor in patients with primary advanced squamous cervical cancer
Authors:
Tzu-Chen Yen, Lai-Chu See, Chyong-Huey Lai, Chien-Sheng Tsai, Angel Chao, Swei Hsueh, Ji-Hong Hong, Ting-Chang Chang, Koon-Kwan Ng
Published in:
European Journal of Nuclear Medicine and Molecular Imaging
|
Issue 3/2008
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Abstract
Purpose
We sought to identify prognostic factors—including positron emission tomography (PET) parameters—in patients with previously untreated squamous carcinoma of the uterine cervix and MRI- or CT-defined pelvic or para-aortic lymph node (PLN or PALN) metastasis.
Materials and methods
Patients with untreated squamous cell cervical cancer and PLN or PALN metastasis detected by CT/MRI were enrolled. FDG-PET scans were performed for primary staging. Prognostic variables were investigated by univariate and multivariate analyses. Five-year recurrence-free and 5-year overall survivals (RFS and OS) were evaluated using the Kaplan–Meier method.
Results
A total of 70 patients [54 patients with International Federation of Gynecology and Obstetrics (FIGO) stage I or II, and 16 patients with stage III or IV] were eligible. Follow-up ranged from 26.1 to 71.6 months. In multivariate analysis, FIGO stage ≥III (5-year RFS, p = 0.008; 5-year OS, p = 0.008) was a significant prognostic factor for both RFS and OS. In addition, SUVmax for PALN (dichotomized by 3.3) was significantly associated with OS (p = 0.012) and marginally with RFS (p = 0.078). The presence of SUVmax ≥ 3.3 at PALN or FIGO stage ≥III were significantly associated with both recurrence [5-year RFS; HR = 4.52, 95% confidence interval (CI) = 1.73–11.80] and death (5-year OS; HR = 6.04, 95% CI = 1.97–18.57).
Conclusion
SUVmax ≥ 3.3 for PALN and FIGO stage ≥III were significant adverse factors in patients with primary squamous cervical carcinoma and PLN or PALN metastasis detected by CT/MRI.