Assessment of sentinel Lymph node mapping with different volumes of Indocyanine green in early-stage ENdometrial cancer: the ALIEN study.

OBJECTIVE: To evaluate the impact of different volumes of indocyanine green (ICG) on the detection rate and bilateral mapping of sentinel lymph nodes in patients with apparent uterine-confined endometrial cancer. METHODS: All patients who underwent surgical staging with sentinel node mapping in six reference centers were included. Two different protocols of ICG intracervical injection were used: (1) 2 mL group: total volume of 2 mL injected superficially; (2) 4 mL group: total volume of 4 mL, 2 mL deeply and 2 mL superficially. Logistic regression was used to analyze factors that could influence dye migration and detection rates. A sensitivity analysis was carried out to determine how independent variables could affect the sentinel node detection rate. RESULTS: Of 442 eligible patients, 352 were analyzed (172 in the 2 mL group and 180 in the 4 mL group). The bilateral detection rates of the 2 mL and 4 mL groups were 84.9% and 86.1%, respectively (p=0.76). The overall detection rate was higher with a volume of 4 mL than with 2 mL (97.8% vs 92.4%, respectively; p=0.024). In the univariate analysis the rate of bilateral mapping fell from 87.5% to 73.5% when the International Federation of Gynecology and Obstetrics (FIGO) 2009 tumor stage was >IB (p=0.018). In the multivariate analysis, for both overall and bilateral detection rates a statistically significant difference emerged for the volume of ICG injected and FIGO 2009 stage >IB. Increasing body mass index was associated with worse overall detection rates on univariate analysis (p=0.0006), and significantly decreased from 97% to 91% when the body mass index exceeded 30 kg/m2 (p=0.05). CONCLUSIONS: In patients with early-stage endometrial cancer, a volume of 2 mL ICG does not seem to compromise the bilateral detection of sentinel lymph nodes. In women with obesity and FIGO 2009 stage >IB, a 4 mL injection should be preferred.

"Water or not water: That is the question." Analysis of costs and consumption of the operating theaters in a greener perspective.

OBJECTIVE: To compare the amounts of water and plastic used in surgical hand washing with medicated soaps and with alcohol-based products and to compare costs and consumption in a year, based on scheduled surgical activity. METHOD: This retrospective study was carried out at Udine's Gynecology Operating Block from October to November 2022. We estimated the average amount of water with a graduated cylinder and the total cost of water usage based on euros/m3 indicated by the supplier; for each antiseptic agent we collected the data relevant to wash time, amount of water and product used per scrub, number of handscrubs made with every 500 mL bottle and cost of a single bottle. We put data into two hypothetical contexts, namely WHO guidelines and manufacturers' recommendations. Data were subjected to statistical analysis. RESULTS: The daily amount of water using povidone-iodine, chlorhexidine-gluconate and alcohol-based antiseptic agents was 187.6, 140.7 and 0 L/day (P value = 0.001), respectively; A total of 69 000 L/year of water would be saved if alcohol-based products were routinely used. A single unit of an alcohol-based product allows three times as many handscrubs as any other product (P value = 0.001) with consequent reduction in plastic packaging. CONCLUSION: Despite the cost saving being negligible, choosing alcohol-based handrub over medicated soap handrub - on equal antiseptic efficacy grounds - could lead to a significant saving of water and plastic, thus making our operating theaters more environmentally friendly.

The impact of the type of nodal assessment on prognosis in patients with high-intermediate and high-risk ESMO/ESGO/ESTRO group endometrial cancer. A multicenter Italian study.

OBJECTIVES: The majority of endometrial cancers (EC) are discovered while the disease is confined to the uterine body. The presence of lymph nodes metastases impairs the prognosis. In this study, we evaluated the possible impact on survival of sentinel lymph node (SLN) mapping algorithm and selective lymphadenectomy (LD) in early stage EC, according to the ESMO-ESGO-ESTRO risk subgroup classification. METHODS: We retrospectively analyzed the database from two collaborative institutions including women with high-intermediate (HI) and high-risk (HR) ESMO/ESGO/ESTRO groups that underwent surgical staging with either SLN mapping, or selective LD. RESULTS: Two-hundred and sixty-six women were overall identified, 121 in HI and 145 in HR group, respectively. LD was performed in 139 patients (52.5%), whereas SLN mapping algorithm in 61 patients (23%). Sixty-six patients in Rome center were not staged (24.8%). Aortic dissection was performed in 29 women (10.9%). The 3-year comparison did not show a significant difference between strategy adopted for nodal staging (SLN mapping, LD, and SLN + LD) on both disease-free survival [HR: 0.82; 95% CI 0.53-1.28; p = 0.390], and overall survival [HR: 0.78; 95% CI 0.47-1.31; p = 0.355]. CONCLUSIONS: In this study focused on women in the HI and HR groups we did not find difference in the 3-years DFS and OS when comparing the SLN strategy with selective lymphadenectomy, or the SLN algorithm. The SLN strategy did not seem to not compromise the prognosis of high risk patients.