Post-operative small pelvic intensity-modulated radiation therapy for early-stage cervical cancer with intermediate-risk factors: efficacy and toxicity

Author(s):  
Guangyu Zhang ◽  
Fangfang He ◽  
Li Miao ◽  
Haijian Wu ◽  
Youzhong Zhang ◽  
...  

Abstract Objective The aim of the present study was to retrospectively evaluate the toxicity and efficacy of post-operative small pelvic intensity-modulated radiotherapy in early-stage cervical cancer patients with intermediate-risk factors. Methods Between 2012 and 2016, 151 patients who had cervical cancer (International Federation of Gynecology and Obstetrics stage I–IIA) with intermediate-risk factors were treated with post-operative small pelvic intensity-modulated radiotherapy. The median dose of 50.4 Gy in 28 fractions with small pelvic intensity-modulated radiotherapy was prescribed to the planning target volume. The intensity-modulated radiotherapy technique used was conventional fixed-field intensity-modulated radiotherapy or helical tomotherapy. Results The median follow-up was 37 months. The 3-year disease-free survival and overall survival rates were 89 and 96%, respectively. A total of 144 patients (95.3%) were alive at the last follow-up. In total, 6 patients (3.9%) had recurrence: locoregional recurrence in 3 patients (2%), distant metastasis in 2 (1.3%), and both in 1 (0.6%). Diarrhoea was the most common acute toxicity. There were no patients suffering from acute or late grade ≥ 3 toxicity. Only 4 patients (2.6%) had late grade 2 toxicities. Conclusions For early-stage cervical cancer patients with intermediate-risk factors, post-operative small pelvic intensity-modulated radiotherapy was safe and well tolerated. The rates of acute and late toxicities were quite satisfactory.

2019 ◽  
Vol 49 (8) ◽  
pp. 714-718
Author(s):  
Hao Yu ◽  
Linlin Zhang ◽  
Dapeng Li ◽  
Naifu Liu ◽  
Yueju Yin ◽  
...  

Abstract Objectives The current study was aimed to evaluate the efficacy and toxicity of postoperative adjuvant chemotherapy (CT) combined with intracavitary brachytherapy (ICRT) in cervical cancer patients with intermediate-risk. Methods We analyzed the medical records of 558 patients who were submitted to radical surgery for Stage IB-IIA cervical cancer. A total of 172 of those 558 patients were considered intermediate-risk according to the GOG criteria. Among those 172 patients, 102 were subjected to CT combined with ICRT (CT+ICRT) and the remaining 70 patients were treated with concurrent chemoradiation (CCRT). The 3-year disease free survival (DFS), overall survival (OS), and complications of each group were evaluated and analyzed. Results No significant difference was observed in 3-year DFS or OS of the patients submitted to CT+ICRT and CCRT. Importantly, the frequencies of grade III to IV acute complications were significantly higher in patients submitted to CCRT than in those treated with CT+ICRT (Hematologic, P = 0.016; Gastrointestinal, P = 0.041; Genitourinary, P = 0.019). Moreover, the frequencies of grade III–IV late complications in patients treated with CCRT were significantly higher compared with CT+ICRT-treated patients (Gastrointestinal, P = 0.026; Genitourinary, P = 0.026; Lower extremity edema, P = 0.008). Conclusions Postoperative adjuvant CT+ICRT treatment achieved equivalent 3-year DFS and OS but low complication rate compared to CCRT treatment in early stage cervical cancer patients with intermediate-risk.


Author(s):  
Ru-ru Zheng ◽  
Meng-ting Cai ◽  
Li Lan ◽  
Xiao Wan Huang ◽  
Yun Jun Yang ◽  
...  

Objectives: To investigate the prognostic role of Magnetic Resonance Imaging (MRI) based radiomics signature and clinical characteristics for overall survival (OS) and disease-free survival (DFS) in the early-stage cervical cancer. Methods: A total of 207 cervical cancer patients (training cohort: n = 144; validation cohort: n = 63) were enrolled. 792 radiomics features were extracted from T2-weighted (T2W) and diffusion weighted imaging (DWI). 19 clinicopathological parameters were collected from the electronic medical record system. Least absolute shrinkage and selection operator (LASSO) regression analysis was used to select significant features to construct prognostic model for OS and DFS. Kaplan-Meier (KM) analysis and log-rank test were applied to identify the association between the radiomics score (Rad-score) and survival time. Nomogram discrimination and calibration were evaluated as well. Associations between radiomics features and clinical parameters were investigated by heatmaps. Results: A radiomics signature derived from joint T2W and DWI images showed better prognostic performance than that from either T2W or DWI image alone. Higher Rad-score was associated with worse OS (p < 0.05) and DFS (p < 0.05) in the training and validation set. The joint models outperformed both radiomics model and clinicopathological model alone for 3 year OS and DFS estimation. The calibration curves reached an agreement. Heatmap analysis demonstrated significant associations between radiomics features and clinical characteristics. Conclusions: The MRI-based radiomics nomogram showed a good performance on survival prediction for the OS and DFS in the early-stage cervical cancer. The prediction of the prognostic models could be improved by combining with clinical characteristics, suggesting its potential for clinical application. Advances in knowledge: This is the first study to build the radiomics-derived models based on T2W and DWI images for the prediction of survival outcomes on the early stage cervical cancer patients, and further construct a combined risk scoring system incorporating the clinical features.


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 6006-6006 ◽  
Author(s):  
Vincent Balaya ◽  
Benedetta Guani ◽  
Laurent Magaud ◽  
Bonsang-Kitzis Hélène ◽  
Charlotte Ngo ◽  
...  

6006 Background: The goal of this study was to assess disease-free survival (DFS) and disease-specific survival (DSS) in patients with early-stage cervical cancer who underwent bilateral sentinel lymph node (BSLN) biopsy alone versus bilateral pelvic lymphadenectomy (BPL). Methods: An ancillary analysis of two prospective multicentric trials on SLN biopsy for cervical cancer (SENTICOL I and II) was performed. All patients with early stage cervical cancer (IA to IIB FIGO stage), negative SLN after ultrastaging and negative non-SLN after final pathologic examination were included. Risk-factors of recurrency and disease-specific deaths were determined by Cox proportional hazard models. Kaplan-Meier survival curves were compared by applying log-rank test. Results: Between January 2005 and July 2012, 259 patients met the inclusion criteria: 85 patients underwent only bilateral SLN biopsy whereas 174 patients underwent BPL. None had positive SLN at ultrastaging or positive non-SLN at final pathologic examination. Between the both groups, there was no differences in histology, final FIGO stage and type of surgical approach. In the BPL group, patients had more frequently tumor size larger than 20 mm (22.9% vs 10.7%, p = 0.02) and postoperative radiochemotherapy (10.7% vs 1.6%, p = 0.01). The median follow-up was 47 months (4-127). During the follow-up, 21 patients (8.1%) experienced reccurencies, including 4 nodal recurrences (1.9%), and 9 patients (3.5%) died of cervical cancer. The 5-year DFS and the DSS were similar between BSLN and BPL groups, 94.1% vs 97.7%, p = 0.14 and 88.2% vs 93.7%, p = 0.14 respectively. After controlling for final FIGO stage and margin status, BSLN compared to BPL was not associated with DFS (HR = 1.76, 95%CI = [0.69 – 4.53], p = 0.24) and DSS (HR = 2.5, 95%CI = [0.64 – 9.83], p = 0.19). Only final FIGO stage was independent predictor of DSS. Conclusions: SLN biopsy alone is oncologically safe in early-stage cervical cancer. Full lymphadenectomy could be omitted in case of bilateral negative SLN. Worse prognosis was associated with higher FIGO stage disease.


Cancers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1061 ◽  
Author(s):  
Benedetta Guani ◽  
Vincent Balaya ◽  
Laurent Magaud ◽  
Fabrice Lecuru ◽  
Patrice Mathevet

Background: With the development of the sentinel node technique in early-stage cervical cancer, it is imperative to define the clinical significance of micrometastases (MICs) and isolated tumor cells (ITCs). Methods: We included all patients who participated in the Senticol 1 and Senticol 2 studies. We analyzed the factors associated with the presence of low-volume metastasis, the oncological outcomes of patients with MIC and ITC and the correlation of recurrences and risk factors. Results: Twenty-four patients (7.5%) had low-volume metastasis. The risk factors associated with the presence of low-volume metastasis were a higher stage (p = 0.02) and major stromal invasion (p = 0.01) in the univariate analysis. The maximum specificity and sensitivity were found at a cutoff of 8 mm of stromal invasion. In multivariate analysis, the higher stage (p = 0.02) and the positive lymphovascular space invasion (p = 0.02) were significantly associated with the MIC and ITC. Patients with low-volume metastasis had similar disease-free survival (DFS) (92.7%) to node-negative patients (93.6%). The addition of adjuvant treatment in presence of low-volume metastasis did not modify the DFS. Conclusions: These results confirm our previous analysis of Senticol 1: the presence of low-volume metastasis did not decrease the DFS in early-stage cervical cancer patients.


2009 ◽  
Vol 115 (3) ◽  
pp. 482-487 ◽  
Author(s):  
Seiji Mabuchi ◽  
Ken-ichirou Morishige ◽  
Fumiaki Isohashi ◽  
Yasuo Yoshioka ◽  
Takashi Takeda ◽  
...  

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