Best original research presented at the 24th European Congress on Gynaecological Oncology-Best of ESGO 2023.

The 'Best of ESGO 2023' manuscript comprises a compilation of the best original research presented during the European Society of Gynaecologic Oncology annual congress held in Istanbul between September 28 and October 1, 2023. Out of 1030 submitted abstracts, 33 studies presented during the Best Oral Sessions, Mini Oral Sessions, and Young Investigator Session were selected by the ESGO Abstract Committee and the European Network of Young Gynae Oncologists (ENYGO) authors. There was a strong focus on surgical de-escalation, immunotherapy, maintenance therapy, and molecular profiling in gynecologic oncology. With this manuscript, ENYGO and ESGO aim to disseminate the valuable research results to readers interested in our field.

Best original research presented at the 25th European Congress on Gynaecological Oncology: best of ESGO 2024.

The 'Best of ESGO 2024' article includes a selection of the most highly rated original research presented during the 25th Annual Congress of the European Society of Gynaecologic Oncology (ESGO), held in Barcelona, Spain, March 7-10, 2024. Of 1218 asbtracts submitted, 35 studies presented during the best oral sessions, mini oral sessions, best three minute presentations session, and young investigator session were selected by the ESGO abstract committee and the authors of the European Network of Young Gynae Oncologists (ENYGO). There was a strong focus on the surgical treatment of early stage cervical cancer and the management of advanced or recurrent gynecological cancers using induction therapy, immunotherapy, and maintenance therapy. With this work, ENYGO and ESGO aim to focus the attention of clinicians, scientists, patients, and all stakeholders interested in gynecologic oncology on research advances in the field.

Uterine pseudoaneurysm on the basis of deep infiltrating endometriosis during pregnancy-a case report.

BACKGROUND: Pseudoaneurysm of the uterine artery (UPA) is a rare cause of potentially life-threatening hemorrhage during pregnancy and puerperium. It is an uncommon condition that mainly occurs after traumatic injury to a vessel following pelvic surgical intervention, but also has been reported based on underlying endometriosis. There is an increased risk of developing UPA during pregnancy. Diagnosis includes clinical symptoms, with severe abdominal pain and is confirmed by sonographic or magnetic resonance imaging (MRI). Due to its potential risk of rupture, with a subsequent hypovolemic maternal shock and high fetal mortality, an interdisciplinary treatment should be considered expeditiously. CASE PRESENTATION: We present the case of a 34-year old pregnant symptomatic patient, where a large UPA was detected at 26 weeks, based on deep infiltrating endometriosis (DIE). The UPA was successfully treated by selective arterial embolization. After embolization, the pain decreased but the woman still required intravenous analgesics during follow-up. At 37 weeks she developed a sepsis from the intravenous catheter which led to a cesarean section and delivery of a healthy boy. She was discharged 10 days postpartum. CONCLUSIONS: UPA should be considered in pregnant women with severe abdominal and pelvic pain, once other obstetrical factors have been excluded. DIE might be the underlying diagnosis. It is a rare but potentially life-threatening condition for mother and fetus.

A laparoscopic study investigating 3D vs 2D imaging systems using a pelvitrainer model with experts, non-experts, and students.

BACKGROUND: Vision is an essential element of laparoscopic surgery that defines the outcome of an operation in regards to time, mistakes and precision. A 3-dimensional (3D) perspective may improve vision during an operation. Therefore, this study was designed to compare 3D versus 2-dimensional (2D) perspectives using a pelvitrainer model. METHODS: Fifty candidates were divided into 3 categories based on different experience levels. The candidates were randomised into two groups, with each group performing the same 4 standardised tasks. Group A approached the tasks first with 3D high definition and in a second turn with 2D high definition. Group B carried out the tasks with the systems in reverse order. Task completion time and the number of mistakes made for each task were recorded. After completing the tasks, participants answered questions concerning the two systems. RESULTS: Group A was, on average, 20% faster at all four tasks and made approximately 18% fewer mistakes in two of the tasks in comparison to group B. The experts significantly benefited from the 3D system in terms of accuracy compared to non-experts and students. The students demonstrated a significantly greater benefit from the 3D system when performing non-linear, continuous movements. Loss of concentration occurred at the same rate for subjects using the 2D and 3D systems. Nausea and dizziness were reported only when working with the 3D system. 91% found the 3D system advantageous for accomplishing the tasks. CONCLUSIONS: Irrespective of experience level, 3D laparoscopy shows advantages in saving time, increasing accuracy and reducing mistakes. These benefits were also accompanied by subjective advantages that were noted by the participants. However, the more complex the task, the less significant the benefit of the 3D system and some people feel handicapped by the eyewear.

The adaption of the bony microstructure of the human glenoid cavity as a result of long-term biomechanical loading.

Structural arrangements of the bony microstructure of a joint through adaptational processes are thought to be determined by the biomechanical demands and its changes. Pursuing this theory of "form follows the biomechanical function", the load distribution of the glenoid cavity, as it is mirrored in its mineralization pattern, should link not only to its thickness distribution, but also will have an impact onto the trabecular network below. To prove and confirm this hypothesis, we analysed the mineral distribution in correlation to the subchondral bone plates thickness and the distribution of architectural parameters of the trabecular network below. Our findings clearly state an inhomogeneous but regular and reproducible mineral distribution pattern in respect to the biomechanical demands and a thickness of the subchondral bone plate which shows a significant correlation (78-93%). As for the trabecular network below, the distribution of the analysed parameters also revealed an inhomogeneous distribution with a regular pattern in correlation to the biomechanical impact. We found distinctive maxima of material distribution and stability (bone volume 79%, plate-like architecture 77%) situated below areas of high long-term load intake. With increasing depth, the trabecular network administers the expression of each structural parameter following the fact that the strain energy gets more and more evenly distributed and changes from a high degree of differentiation just beneath the SBP to a more equal distribution within the deeper areas. After all, the biomechanical situation of a joint directly influences the bony formation of the subchondral bone plate and the trabecular network below.