Sentinel Lymph Node Biopsy

NEO-NAUTILUS is a prospective, multicenter, randomized phase III clinical trial to evaluate whether omitting axillary lymph node surgery (ALND or SLNB) in clinically lymph node-negative breast cancer patients after neoadjuvant chemotherapy is non-inferior to performing SLNB in terms of 5-year disease-free survival.

This single-center randomized controlled trial evaluates whether detecting the first lymph node at the axillary entrance with ultrasound guidance, followed by a targeted axillary incision over the pencil-marked projection, improves sentinel lymph node identification compared to the conventional axillary hairline landmark. The study hypothesizes that this technique enables a smaller incision, minimizes tissue dissection, and reduces operative time.

The aim of this study is to reduce the need for colectomy and its' associated morbidity and mortality in patients with pT1-2 colon carcinoma after endoscopic resection and an estimated lymph node metastasis (LNM) risk of \>15%, or with macroscopically suspected T1 tumors, by performing an endoscopic-assisted laparoscopic/robotic wedge resection of the tumor or scar, along with sentinel node (SLN) biopsy using indocyanine green (ICG). This intervention will be compared to the standard-of-care segmental resection using a partially randomized patient preference design. The primary outcome is the 3-year recurrence rate.

The goal of this clinical trial is to compare the survival outcomes, morbidity and cost-effectiveness of sentinel node biopsy versus limited elective neck dissection in node-negative early oral cancers. The main questions it aims to answer are: * Survival outcomes * Morbidity outcomes * Cost-effectiveness Participants will either undergo sentinel node biopsy followed by completion neck dissection if sentinel node is reported to be metastatic (SNB) or limited elective neck dissection where level IIb will be cleared only if level IIa is metastatic (limited END). The study will compare the outcomes in the two cohorts.

The aim of this study is to compare two types of lymphadenectomy (transperitoneal vs. paracervical) during the lymphadenectomy phase of endometrial cancer staging surgery performed using V-NOTES, a new and advanced technique. This study seeks to optimize the V-NOTES technique for endometrial cancer staging. This randomized, prospective, controlled study will include patients diagnosed with endometrial cancer via histology, following physical examination and imaging, and who are electively scheduled for the V-NOTES endometrial cancer staging procedure. Patients will be randomized into two groups: the transvaginal paracervical lymphadenectomy group and the transperitoneal lymphadenectomy group. The parameters related with surgical and functional outcomes will be compared in both groups.

SLNB has been recommended by domestic and foreign guidelines for patients with initial cN1 and NAC descending to ycN0. However, the best technical path is still not very clear at present, and the long-term tumor safety data is still insufficient. Therefore, it is necessary to further explore the optimal technical pathway and long-term tumor safety for SLNB in patients with initial cN1 and NAC downgrading to ycN0 in the real world.This study will evaluate the optimized technical pathway and long-term tumor safety of SLNB in patients with initial cN1 and NAC downgrading to ycN0 in real-world studies.

The role of small-volume lymph node disease (ITC and micro metastases) among patients with endometrial or cervical cancer submitted to sentinel node (SLN) procedure is not clearly defined. This study was designed to create a dataset of patients with lymph nodal disease. Data on type and volume of lymph nodal disease, therapeutic choices and oncological outcomes (DFS, OS, recurrence rate) will be collected and analyzed. This will allow to define the groups of patients who may need or for whom it can be avoided any adjuvant treatment on the basis of lymph node status.