To evaluate the incidence of endometriosis in polycystic ovary syndrome (PCOS) patients who did not present with any endometriosis symptoms and underwent laparoscopic ovarian drilling (LOD) for clomiphene citrate (CC) resistance, 225 and 630 women with CC-resistant PCOS without classic endometriosis symptoms were included in a retrospective study and a meta-analysis, respectively. All women underwent LOD. The main outcome parameter was the prevalence of incidental endometriosis. Laparoscopy revealed endometriosis in 38/225 (16.9%) women (revised American Fertility Society (rAFS) stage I: 33/38, 86.8%; rAFS stage II: 5/38, 13.2%). When women with CC-resistant PCOS without endometriosis were compared, lower body mass index (BMI) and lower 25-hydroxy-vitamin D levels were associated with the presence of endometriosis at laparoscopy (odds ratios (OR): 0.872, 95% confidence intervals (95%CI): 0.792–0.960; p = 0.005 and OR: 0.980, 95%CI: 0.962–0.999; p = 0.036; respectively). The inclusion criteria for the meta-analysis were fulfilled by 4/230 reports about LOD. After correction for study heterogeneity, the pooled prevalence of incidental endometriosis was 7.7% in women with CC-resistant PCOS. In conclusion, the rate of incidental endometriosis in women with CC-resistant PCOS might reflect the prevalence of asymptomatic endometriosis. All cases were affected by minimal or mild disease. Since the literature lacks reports on associated clinical outcomes, the relevance of this entity in such patients should be the subject of further studies.

To evaluate whether the presence of a visualizable "flow" effect in the fallopian tube ostia in hysteroscopy was predictive of tubal patency. Design: A prospective cohort study. Setting: In a prospective study, infertile women who underwent surgery because of infertility between March and November 2018 were included. The main outcome parameter was fallopian tube patency assessed by laparoscopic chromopertubation. The predictive parameter tested was the presence of hysteroscopic tube flow. Patients: Seventy-two infertile women. Interventions: Combined hysteroscopy and laparoscopy with chromopertubation. Results: One-hundred forty-four fallopian tubes were evaluated, with 88 (61.1%) patent tubes at laparoscopic chromopertubation. A positive hysteroscopic flow effect was recorded for 94 (65.3%) ostia and was accurate in predicting patency (p < .001), with a sensitivity of 85.3% (95% confidence interval [CI], 76.1−91.9) and a specificity of 66.1% (95% CI, 52.2−78.2). A multivariate binary regression model revealed that the presence of a hydrosalpinx (odds ratio = 8.216; 95% CI, 1.062−63.574; p = .044) and peritubal adhesions (odds ratio = 3.439; 95% CI, 1.142−10.353; p = .028) were associated with a false-normal flow result. A hazy hysteroscopic picture was found in 15 of 21 (71.4%) and 5 of 51 (9.8%) cases with and without bilateral tubal occlusion, respectively (p < .001, sensitivity = 71.4% [95% CI, 47.8−88.7], specificity = 90.2% [95% CI, 78.6−96.7]). Conclusions: The presence of hysteroscopic tubal flow was a reliable indicator of tubal patency. A hydrosalpinx or peritubal adhesions increase the risk for a false-normal result. A hazy hysteroscopic picture suggests bilateral tubal occlusion. Using the hysteroscopic flow effect, one can provide additional information for the patient.

Background: The use of different definitions and diagnostic approaches of polycystic ovary syndrome (PCOS) and recurrent miscarriage (RM) has led to a wide range of prevalence rates in the literature. Despite the persistent controversy about the factual prevalence of PCOS in RM, a vast number of studies have revealed evidence about their association with each other. The goals of this study were to evaluate the prevalence of polycystic ovarian morphology and PCOS within the RM population, performing meta-analyses with the obtained data from this study, together with previous reports on this topic and evaluating reproductive outcome in women with RM and PCOS. Methods: A retrospective cohort study with 452 women with RM and a meta-analysis were conducted. The main outcome parameter was the prevalence of PCOS in RM patients. Results: In the retrospective study, the prevalence of PCOS in RM was 9.5%. Negative results for the selected risk factors for RM were present in 283 patients (62.6%). From all evaluated possible underlying causes for RM, only the presence of thrombophilic disorders was significantly associated with PCOS (PCOS: 20.9% versus no PCOS: 7.8%, p = 0.010). In the meta-analysis of three studies on PCOS in RM patients, which used the revised Rotterdam criteria for defining PCOS, an estimated pooled prevalence of 14.3% (95% CI: 6.2–24.9) was found. In the retrospective data set, women in the PCOS group revealed significantly higher luteinizing hormone (LH), testosterone, and Anti-Mullerian hormone (AMH) levels than age- and body mass index (BMI)-matched controls with RM negative for the selected risk facotrs (p < 0.05). The rate of further miscarriages was significantly higher in PCOS women than in controls (71.4% versus 53.6%, respectively; p = 0.031). Conclusions: The prevalence of PCOS seems slightly increased in women with RM. Women with PCOS suffering from RM showed a significantly higher risk for further miscarriage and decreased chances of having a life birth of about 18% which did not reach statistical significance. Therefore, we assume that PCOS plays a moderate role in RM.

The relevance of diagnostic hysteroscopy, especially when performed in an outpatient “office” setting, in the evaluation process of infertility has increased within the last few years. Notably, several articles on a possible role for diagnostic hysteroscopy in the assessment of Fallopian tube patency have been published recently. Three relevant articles were identified. Visualizing a “flow effect” or air bubbles dispersing through the ostia, sonographically assessed shifts in cul de sac volume, and selective Fallopian tubal cannulation are reportedly promising hysteroscopic techniques. In this review, an overview of hysteroscopy, details about diagnostic reliability, and considerations with regard to ease of use and difficulties are summarized. Based on these articles, hysteroscopic evaluation of tubal patency seems to be a promising, clinically relevant field for future clinical research.