Obstetric and Perinatal Outcomes of Pregnancies Resulting from Fresh Versus Frozen Embryo Transfer-a Sibling Cohort.

We aimed to compare obstetric and perinatal outcomes of in vitro fertilization (IVF) pregnancies following fresh and frozen embryo transfer (FET). This was a historic cohort of deliveries between November 2008 and January 2020 at a single university hospital, in which each fresh transfer IVF pregnancy was matched to a FET pregnancy by the same woman (1:1 ratio). We included live singleton deliveries (> 24 weeks of gestation) and excluded pregnancies following egg donation. The primary outcome was birthweight, and secondary outcomes were small for gestational age (SGA) neonates and preterm birth (PTB). A total of 107 fresh transfer pregnancies were matched to 107 FET pregnancies, in the same women. Mean maternal age was lower in the fresh transfer group compared to the FET group (30.4 vs. 32.5 years, p < 0.001). A higher rate of nulliparity was noted in fresh transfer pregnancies (64.5% vs. 12.1%, p < 0.001). Mean birthweight was non-significant between the groups (p = 0.13), and the rates of low birthweight and small for gestational age neonates did not differ between the groups. Preterm deliveries occurred in 10.3% and 9.3% of fresh transfer and FET pregnancies respectively, p = 0.79. On multivariate linear regression analysis, the type of embryo transfer-FET or fresh-was not independently associated with birthweight, after adjustment for women's age, nulliparity, and BMI. IVF pregnancies following fresh and FET entailed the same obstetric and perinatal outcomes when compared in the same women.

Placental disorders of pregnancy in subsequent IVF pregnancies - a sibling cohort.

RESEARCH QUESTION: To assess whether the incidence of placental disorders of pregnancy decreases with increasing parity in repeat IVF pregnancies, in the same way as natural pregnancies. DESIGN: This was a retrospective cohort of deliveries between November 2008 and January 2020, in a single university-affiliated medical centre. The study included women with only IVF-attained singleton pregnancies (no natural conception) with at least two deliveries, and compared the obstetric and perinatal outcomes between first, second and third deliveries. Each woman served as her own control. The primary outcome was the incidence of placental-related disorders of pregnancy, defined as small for gestational age (SGA) neonates and/or pre-eclampsia. RESULTS: A total of 307 first deliveries, 307 second deliveries and 49 third deliveries by the same women were compared. A trend for a decreased rate of pre-eclampsia was noted with increased parity (P = 0.06) and a significant decrease in the rate of SGA: 11.7% for first delivery, 7.8% for second delivery and 2.0% for third (P = 0.04). This difference in SGA incidence was maintained in a matched sub-analysis of the 49 women with three deliveries (P = 0.04), and after adjustment for fresh/frozen embryo transfer (P = 0.03). Although SGA and pre-eclampsia were generally more common in IVF than natural pregnancies, their decrease with increasing parity mimicked that in natural pregnancies. CONCLUSION: IVF pregnancies are associated with an increased risk of placental disorders of pregnancy. However, they exhibit a decrease in incidence with increasing parity.

Complications of the third stage of labor in in vitro fertilization pregnancies: an additional expression of abnormal placentation?

OBJECTIVE: To assess the correlation between in vitro fertilization (IVF) and complications of the third stage of labor. DESIGN: Retrospective cohort of vaginal deliveries from November 2008 to January 2020. Maternal and obstetric outcomes of singleton deliveries were compared between IVF and non-IVF pregnancies. SETTING: University hospital. PATIENT(S): Women with live singleton vaginal deliveries at >24 weeks of gestation. INTERVENTION(S): In vitro fertilization-attained pregnancies (compared with spontaneous ones). MAIN OUTCOME MEASURE(S): Complications of the third stage of labor, defined as manual placental removal (either entire removal due to nonseparation or exploration of the uterine cavity due to suspected retained products of conception). RESULT(S): Overall, 1,264 IVF pregnancies and 34,166 non-IVF pregnancies were included. Deliveries in the IVF group were characterized by an older maternal age, lower parity, higher rate of diabetes and hypertensive disorders, higher rate of placental abnormalities, earlier gestational age, higher rate of labor induction, chorioamnionitis, and instrumental delivery. Complications of the third stage of labor occurred in 5.9% of IVF deliveries and in 2.8% of controls, and blood transfusion was more prevalent in IVF deliveries. The rate of complications of the third stage were higher in both fresh and frozen transfer cycles as compared with spontaneous pregnancies (5.8%, 8.8%, and 2.8%, respectively), although no difference was noted between fresh and frozen transfers. In vitro fertilization was associated independently with complications of the third stage of labor after adjustment for potential confounders. CONCLUSION(S): In vitro fertilization is associated independently with an increased risk of complications of the third stage of labor.

Obstetric and perinatal outcomes of in vitro fertilization and natural pregnancies in the same mother.

OBJECTIVE: To compare obstetric and perinatal outcomes between pregnancies conceived using in vitro fertilization (IVF) and natural pregnancies of the same women. DESIGN: This was a case-control study of deliveries between November 2008 and January 2020 in which each IVF pregnancy was matched to a natural pregnancy of the same woman (1:1 ratio). SETTING: University hospital. PATIENT(S): We included women with consecutive live singleton deliveries (>24 weeks of gestation) at the Edith Wolfson Medical Center. We excluded IVF pregnancies attained using egg donation. INTERVENTION(S): In vitro fertilization-attained pregnancies (as compared with natural ones). MAIN OUTCOME MEASURE(S): Primary outcome: preterm birth (PTB). SECONDARY OUTCOMES: small for gestational age (SGA) neonates and pregnancy-induced hypertension (PIH; gestational hypertension or pre-eclampsia). RESULT(S): A total of 544 IVF pregnancies were matched to 544 natural pregnancies, each in the same woman. In 292 women (53.7%), the natural pregnancy preceded the IVF pregnancy. Maternal age was significantly higher in IVF deliveries. Gestational age at delivery and the rates of PTB, PIH, instrumental delivery, cesarean delivery, and SGA neonates were comparable between IVF and natural pregnancies. Birth weight was slightly lower in IVF pregnancies. On multivariate analysis, IVF was not independently associated with PTB, SGA, or PIH after adjustment for confounders. CONCLUSION(S): When compared in a cohort of the same women, natural and IVF-attained pregnancies did not differ with regard to obstetric and perinatal outcomes.

Menopausal hormone therapy for BRCA-mutation carriers: attitudes of Israeli healthcare providers before and after a brief educational intervention.

OBJECTIVE: BRCA-mutation carriers are offered risk-reducing bilateral salpingo-oophorectomy (RRBSO) at age 35 to 40 years, leading to major life-quality and health-related issues associated with early menopause. Hormone therapy (HT) may significantly alleviate menopausal symptoms without increasing breast or ovarian cancer risk in BRCA carriers. We investigated attitudes of Israeli healthcare providers to HT post-RRBSO in BRCA carriers, before and after a brief educational intervention. METHODS: In this pre-post survey of gynecologic departments in Israel, healthcare providers were given questionnaires (based on scores of 1-4) assessing attitudes to prescribing HT in different clinical scenarios, before and after an educational intervention on current knowledge about HT in BRCA-mutation carriers. Higher scores indicated higher tendency to prescribe HT. Mean and median scores were calculated for each scenario, and the association between scores and various healthcare providers' characteristics were assessed. The change in attitude pre versus postintervention was evaluated, and the Cohen's d effect size was calculated. RESULTS: Of the 200 healthcare providers who were offered participation, 162 responded. Of them, 25.3% were obstetricians, 13.6% gynecologists, 5.55% gynecologic-oncologists, 8% medical oncologists, 38.9% obstetrics-gynecology residents, and 8.6% were nurses. Median age was 44 (interquartile range 36-58); 42.6% were males. Higher score correlated weakly with older age, but did not correlate with gender or personal HT/menopause experience. Significantly higher mean and median preintervention scores were obtained by gynecologists (3.2±0.96; 4 [2.25-4]) and gynecologic-oncologists (3.6 ±â€Š0.78; 4 [3.6-4.0]) than by medical oncologists (2.6 ±â€Š1.06; 2.13 [1.88-3.81]), obstetricians (2.7 ±â€Š1.09; 2.25 [1.88-4.0]), residents (2.48 ±â€Š0.99; 2 [1.69-3.56]) or nurses (2.2 ±â€Š0.92; 2 [1.5-2.69]). Overall scores were higher postintervention (P < 0.001, effect size d = 0.901). The change in scores postintervention was most prominent among younger participants and nurses. CONCLUSIONS: In Israel, it is acceptable to offer HT post-RRBSO to healthy BRCA-mutation carriers. Younger healthcare workers and nurses tend to be more hesitant, yet they are more likely to adopt a pro-HT attitude after an educational intervention. Such intervention is likely to improve overall care for BRCA-mutation carriers.

Effect of Left Atrial Enlargement on Success Rates of Catheter Ablation of Atrial Fibrillation in Women.

BACKGROUND: Catheter ablation (CA) is a well-established therapeutic option for patients with recurrent symptomatic atrial fibrillation (AF). Data on gender-related differences are limited with regard to baseline characteristics and long-term success rates of catheter ablation for AF. METHODS: We analyzed a cohort of 251 consecutive patients who underwent a first catheter ablation for AF in our institute during the period 2008 through 2015. All patients were followed by regular annual clinic visits, electrocardiograms, periodic 24-48 hour Holter monitoring, and loop recorders. The primary endpoint was first recurrence of AF during 1 year of follow-up. RESULTS: The cohort comprised 26% women (n=65), who were older (62.1 ± 9.6 vs. 54.4 ± 11.3 years, P < 0.01) and had a higher proportion of diabetes mellitus (23.1 vs. 5.4%, P < 0.001) than male patients. No other significant differences were evident. At 1 year follow-up, the cumulative survival free of AF was significantly higher in women compared with men (83% vs. 66%, respectively, log rank P value = 0.021). Subgroup analysis showed an interaction between female and small indexed left atrial diameter (LADi < 23 mm/m2). CONCLUSIONS: Our findings suggest that women experience a significantly lower rate of AF recurrence post-CA compared with men. This gender-related advantage appears to be restricted to women without significant left atrial enlargement. It further implies that left atrial enlargement has a stronger negative impact on post-CA AF recurrence in females than in males. Due to the relatively small sample number of females further research is warranted to validate our conclusions.