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4 result(s) for "Leufflen, Lea"
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Photodynamic diagnosis with methyl-5-aminolevulinate in squamous intraepithelial lesions of the vulva: Experimental research
The incidence of the High-grade Squamous Intraepithelial Lesion of the vulva, formerly vulvar intra-epithelial neoplasia is progressively increasing. Today, an early detection and a precise localization of vulvar lesions are still problematic issues, due to the lack of accuracy of the available diagnostic tool. A new approach is the photodynamic diagnosis based on the fluorescence detection of protoporphyrin IX (PpIX) in cancer cells after topical application of a cream of methyl amino-levulinic acid. This study aimed to evaluate the effectiveness of photodiagnosis in order to discriminate the intensity of PpIX fluorescence between vulvar tumor and healthy skin. After topical application of the cream, the fluorescence on xenografted A431 tumor and adjacent skin was non-invasively measured with optical fiber. The tumor to skin fluorescence ratios were 1.38 and 1.41 at respectively 3h and 6h after application, which were significantly higher compared to those observed before application. PpIX accumulation at different depths of the tumor was investigated by spectrofluorimetry after PpIX chemical extraction from tumor sections at 3h and 6h post-application. It was noticed at both application times that the concentration of PpIX within the tumor progressively decreased. However PpIX fluorescence was always detectable up to 2.5 mm, a depth equivalent to more than three quarters of the tumor. The tumor to exposed skin ratios of PpIX fluorescence showed a good selectivity up to1mm depth at 3h post-application and up to 1.5mm at 6h post-m-ALA. Thus, the photodynamic diagnosis using in vivo topical methyl amino-levulinic acid appears to be a promising way to detect the intraepithelial lesions of the vulva. Our results open the possibility for implementation of topical methyl amino-levulinic acid in clinical settings for recognition of vulvar high-grade squamous intraepithelial lesions.
Evaluation of Pre-Therapeutic Assessment in Endometrial Cancer Staging
Objective: The aim of this retrospective cohort study is to evaluate the concordance between the preoperative MRI and histology data with the final histopathological examination. Method: This is a retrospective observational study of 183 patients operated for endometrioid cancer between January 2009 and December 2019 in the surgical oncology department of the Lorraine Cancer Institute (ICL) in Vandœuvre-lès-Nancy. The patients included are all women operated on for endometrioid-type endometrial cancer over this period. The exclusion criteria are patients for whom the pre-therapy check-up does not include pelvic MRI and those who have not had first-line surgery. The final anatomopathological results were compared with preoperative imaging data and with endometrial biopsy data. Results: For the myometrial infiltration, the sensitivity of MRI was of 37% and the specificity of 54%. To detect nodal metastases, the sensitivity of MRI was of 21% and the specificity of 93%. We observed an under estimation of the FIGO classification (p = 0.001) with the MRI in 42.7% of cases (n = 76) and an overestimation in 24.2% of cases (n = 43). There was a concordance in 33.1% of cases (n = 59). We had a poor agreement between the MRI and final histopathological examination with an adjusted kappa (κ) of 0.12 [95% IC (0.02; 0.24)]. There was a moderate concordance on the grade between the pretherapeutic biopsy and the final histopathological examination on excised tissue with an adjusted kappa of 0.52 [95% IC 0.42–0.62)]. Endometrial biopsy underestimated the tumor grade in 28.9% of cases (n = 50) (p < 0.001), overestimated the tumor grade in 6.9% of cases (n = 12) and we observed a concordance in 64.2% of cases (n = 111). Conclusion: The pre-operative assessment of endometrial cancer is inconsistent with the results obtained on final histopathological examination. A study with a systematic review should be done to assess the performance of MRI, only in expert centers, in order to consider a a specific care management for endometrial cancer patients: patients who have had an MRI in an outpatient center should have their imaging systematically reviewed, with the possibility of a new examination in case of incomplete sequences, by expert radiologists, and discussed in multidisciplinary concertation meeting in expert centers, before any therapeutic decision. The sentinel node biopsy must be used for low and intermediate risk endometrial cancer.
Pre-operative axillary ultrasound with fine-needle aspiration cytology performance and predictive factors of false negatives in axillary lymph node involvement in early breast cancer
Purpose Breast cancer is the most common cancer among females worldwide. Axillary lymph node involvement is an important prognostic factor in pre-operative evaluation. The aim of this study was to evaluate the sensitivity and accuracy of AUS during the initial breast cancer diagnosis and the contribution of ultrasound with guided FNAC (AUS + FNAC) in cases of suspicious node. Methods A retrospective study was conducted at the Lorraine Cancer Institute between 1 January and 31 December 2015. It included patients with early breast cancer, all of whom received AUS. If axillary node involvement was suspected, FNAC was performed. Sentinel lymph node biopsy (SLNB) and/or axillary lymph node dissection (ALND) were performed depending on FNAC results. Results In total, 292 patients were included. 88 patients (30.1%) had a suspicious lymph node on ultrasound and had FNAC, of whom 53 tested positive for axillary node involvement (60.2%). Among the 35 patients who tested negative with FNAC, 15 had axillary metastatic involvement. Performance of AUS + FNAC was better than that of AUS alone, with sensitivity, specificity, positive predictive and negative predictive values of approximately 44.5%, 100%, 100% and 72.4%, respectively, and accuracy of approximately 77.4%. Luminal A subgroup, axillary involvement of less than two positive nodes or nodal tumor of less than 7 mm are independent factors of false negative rate. Conclusions AUS performance would seem to be improved by FNAC, with a false negative rate of approximately 26%. It may be possible to reduce the false negative rate of AUS if its contributing factors are taken into consideration, along with the impact of specific echographic signs as revealed by experienced radiologists.
2022-RA-156-ESGO Minimally invasive versus open abdominal approaches for early-stage cervical and endometrial cancer: a meta-analysis of prospective randomised controlled trials (RCTs)
Introduction/BackgroundTo investigate if minimally invasive surgical techniques lead to higher disease-specific mortality and all-cause mortality at 4.5 years for patients with early-stage cervical and endometrial cancer.MethodologyPubMed/Medline and EMBASE were searched for results from inception to 2021. Prospective randomised controlled trials reporting disease-specific mortality and all-cause mortality at 4.5 years for patients who had minimally invasive or open procedures for early-stage cervical cancer (< II) or endometrial cancer (< III) were selected. Stata 17 was used to conduct a random-effects meta-analysis generating relative risk estimates, odds ratios and 95% CIs. Heterogeneity was examined, small-study effects (Egger’s test), publication bias and study quality (RoB2) assessments were performed.ResultsSeven randomised clinical trials between 2001 and 2020 including 4320 patients from 7 countries were included. Two RCTs for cervical cancer and five RCTs for endometrial cancer were selected. Of these, 2584 (60%) patients had minimally invasive surgery, and 1736 (40%) patients had open abdominal surgery. The non-statistically significant risk of all-cause mortality was 18% higher (RR 1.18, 95% CI 0.80, 1.76, I250.5%) and of disease-specific mortality was 26% higher for patients who underwent minimally invasive surgery compared to open abdominal surgery (RR 1.26, 95% CI 0.83, 1.89, I221.4%). However, p = 0.403 (all-cause mortality) and p = 0.265 (disease-specific mortality) indicated little evidence against the null hypothesis. There were no small study effects, little evidence of publication bias and study quality was generally high.ConclusionBased on a systematic review of the literature and meta-analysis of prospective randomised-controlled trials for patients with early-stage cervical and endometrial cancer, minimally invasive surgery could be associated with a non-significant higher risk of all-cause mortality (18%) and disease-specific mortality (26%) at 4.5 years compared to open abdominal surgery. However, as p > 0.05 and the CI included 1, this meta-analysis was inconclusive.