Robot-assisted hysterectomy for endometrial cancer: is there a correlation between uterine diameters, pelvic volume, and surgical outcomes?

Hysterectomy could be performed through a vaginal approach, laparotomy, or laparoscopy. Robotic surgery is a technique that can be defined as a particular type of laparoscopy, often used in interventions where microsurgery can help improve radicality and effectiveness. In choosing patients for the robotic technique, many characteristics could be studied to tailor the surgical choice. Our aim is to describe the anthropomorphic and radiological parameters linked to worse surgical outcomes for the potential stratification of patients in the preoperative decision about the type of surgery. In our center, the AOU Maggiore della Carità Hospital in Novara (Italy), 104 patients diagnosed with endometrial cancer and candidated for total hysterectomy, with various degrees of radicality, underwent robotic surgery. Patients' anthropomorphic parameters, such as body mass index, and radiological imaging such as uterine size and pelvis diameter, were compared with the surgical outcomes such as operating times, complications as blood loss, subsequent emergency room visits, and the possible need for laparotomy conversion. Our ratios between pelvic depth and uterine anteroposterior diameter (PD/UAP) and between uterine volume and pelvic volume index (UV/PCI) showed statistically significant correlations with surgical time.