Robotic surgery in Gynecology: the present and the future.

Since its introduction, laparoscopic surgery has been often preferred over open surgery in obstetrics and gynecology due to its advantages, such as less bleeding, lower incidence of adhesions, reduced postoperative pain, short hospital stay, and quick return to daily life. However, in the case of complex surgeries, laparoscopy presented some limitations. Nonetheless, since the 1980s, medical robots have been introduced to overcome the technical limitations of laparoscopy and start a new age for minimally invasive surgery. In this review, we explore the indications and advantages and disadvantages of robotic surgery in the field of gynecology, and try to assess the recent trend of robotic surgery.

An Application of Machine Learning That Uses the Magnetic Resonance Imaging Metric, Mean Apparent Diffusion Coefficient, to Differentiate between the Histological Types of Ovarian Cancer.

This retrospective single-center study included patients diagnosed with epithelial ovarian cancer (EOC) using preoperative pelvic magnetic resonance imaging (MRI). The apparent diffusion coefficient (ADC) of the axial MRI maps that included the largest solid portion of the ovarian mass was analysed. The mean ADC values (ADCmean) were derived from the regions of interest (ROIs) of each largest solid portion. Logistic regression and three types of machine learning (ML) applications were used to analyse the ADCs and clinical factors. Of the 200 patients, 103 had high-grade serous ovarian cancer (HGSOC), and 97 had non-HGSOC (endometrioid carcinoma, clear cell carcinoma, mucinous carcinoma, and low-grade serous ovarian cancer). The median ADCmean of patients with HGSOC was significantly lower than that of patients without HGSOCs. Low ADCmean and CA 19-9 levels were independent predictors for HGSOC over non-HGSOC. Compared to stage I disease, stage III disease was associated with HGSOC. Gradient boosting machine and extreme gradient boosting machine showed the highest accuracy in distinguishing between the histological findings of HGSOC versus non-HGSOC and between the five histological types of EOC. In conclusion, ADCmean, disease stage at diagnosis, and CA 19-9 level were significant factors for differentiating between EOC histological types.

Pregnancy and neonatal outcomes of women with disabilities: a nationwide population-based study in South Korea.

We investigated (1) pregnancy and neonatal outcomes in women with and without disabilities, (2) time trends in deliveries, and (3) risks of pregnancy and neonatal complications among women with various disability types and severity. This was a nationwide population-based study merging the database of the Korea National Health Insurance claims, National Health Screening Program for Infants and Children, and Disability Registration System to compare perinatal outcomes in women with and without disabilities. Pregnancy and neonatal outcomes were analyzed during 2007 and 2015, as were time trends of deliveries. Multivariate logistic regression was used to evaluate risk of perinatal outcomes among women with various disability types and severities. Women with disabilities showed higher rates of cesarean section (aOR, 1.73; 95% CI, 1.69-1.77), hypertensive disorders (aOR, 1.74; 95% CI, 1.63-1.86), placenta abruption (aOR, 1.27; 95% CI, 1.12-1.45), placenta previa (aOR, 1.14; 95% CI, 1.05-1.24), stillbirths (aOR, 1.30; 95% CI, 1.17-1.45), preterm births (aOR, 1.67; 95% CI, 1.57-1.78), and LBW (aOR, 1.87; 95% CI, 1.78-1.97) than those without disabilities. From 2007 to 2015, although delivery rate in women with disabilities decreased steeply compared with that in women without disabilities, the rate of cesarean section increased in women with disabilities. Women with intellectual disability and those with vision impairment had the highest number of perinatal complications among women with various types of disabilities. Women with disability had more adverse pregnancy and neonatal outcomes than those without disabilities. Specific disability types & severities are more vulnerable to specific perinatal complications.

Effect of maternal age on emergency cesarean section.

Objectives: This study aims to investigate the independent influence of maternal age on the risk of emergency cesarean section (CS) due to nonreassuring fetal heart rate or arrest disorder.Methods: This was a cross-sectional study on women with nulliparous pregnancies, who are attempting vaginal delivery at term and have a cephalic presentation without the indication of elective CS at the onset of labor. The primary outcome was the rate of emergency CS. Independent risk factors were elucidated using multivariate logistic regression analysis.Results: Of 3513 women, 541 (15.4%) delivered by emergency CS during a trial of vaginal delivery, with theses being due to nonreassuring fetal heart rate (N = 150) or arrest disorder (N = 391). In univariate analysis, both individual CS rate due to nonreassuring fetal heart rate or arrest disorder and total emergent CS rate increased with maternal age. The risk of emergency CS was also significantly higher when labor induction was performed (odds ratio (OR) 2.489, 95% confidence interval (CI) 2.043-3.033), while fetal weight was heavier (neonatal weight ≥3.5 kg; OR 2.396, 95% CI 1.956-2.934), and maternal BMI was higher (before pregnancy ≥25 kg/m2; OR 2.751, 95% CI 1.980-3.823, at delivery ≥28 kg/m2; OR 2.375 95% CI 1.915-2.946). Multivariate stepwise regression analysis showed a statistically significant increase in the risk of total emergency CS in mothers over 35 years of age, compared to that in women less than 30 years old (35-39 years group; adjusted OR 1.805 95% CI 1.347-2.418, ≥40 years group; adjusted OR 4.659 95% CI 2.709-8.013). CS due to nonreassuring fetal heart rate increased in mothers over 40 years of age (adjusted OR 5.354, 95% CI 2.386-12.017) and CS due to arrest disorder was also increased in mothers over 30 years of age (30-34 years group; adjusted OR 1.343, 95% CI 1.010-1.785, 35-39 years group; adjusted OR 1.906, 95% CI 1.357-2.679, ≥40 years group; adjusted OR 4.663, 95% CI 2.480-8.768). Similar to the result of univariate analysis, labor induction increased the risk of emergency CS (adjusted OR 2.241, 95% CI 1.828-2.747).Conclusions: Advanced maternal age is an independent risk factor of emergency CS due to nonreassuring fetal heart rate or arrest disorder during the trial of vaginal delivery. The risk of emergency CS was also increased when labor induction was performed. Therefore, the risk of emergency CS needs to be considered, especially when the labor induction is planned, in women aged 40 or more.