Research question Does a freeze-all strategy improve live birth rates in women of different age groups? Design Retrospective cohort study of 1882 first embryo transfer cycles, performed between January 2013 and December 2015. Reproductive outcomes between fresh (FRESH) or frozen (FROZEN) embryo transfers were compared in patients stratified by age: < 35, between 35 and 38, or > 38 years. Student's t test for independent samples and χ 2 analyses were used as needed. A multivariable logistic regression analysis was performed adjusting for age, triggering drug, number of retrieved oocytes, number of transferred embryos, and percentage of top-quality embryos. Main results and the role of chance Live birth rates (LBR) were significantly higher for FROZEN in the < 35 years group (43.7% vs 24%; p < 0.001). In both the 35-38 and > 38 years groups, LBR for FROZEN vs FRESH were not statistically different (30.9% in the FROZEN group vs 29.3% in the FRESH group, p = 0.70, and 19.8% in the FROZEN group vs 12.7% in the FRESH group, p = 0.07, respectively). The multivariate analysis found a significantly positive effect of performing FROZEN on LBR in the younger group (OR 2.46,; p = 0.005) but had no impact in women between 35 and 38 years (OR 1.01, 95% CI 0.55-1.83; p = 0.98) or older (OR 0.96, 95% CI 0.43-2.13; p = 0.92). Conclusions Performing a freeze-all strategy seems to result in better reproductive outcomes when compared with a fresh ET in women under 35 years, with no significant impact on older women.
Uterine fibroids (also known as leiomyomas or myomas) are the most common pelvic tumors, affecting more than 70% of women over 70 years of age and although most are asymptomatic, some women may experience symptoms, depending on their location and size, which can alter your quality of life, such as abnormal uterine bleeding, anemia, pelvic pain and pressure, dyspareunia, increased urinary frequency and constipation. Its relationship with infertility has been controversial and, although insignificant for subserous fibroids, it appears that submucosal and intramural fibroids that distort the endometrial cavity can affect embryo implantation and are associated with an increased risk of early pregnancy loss. Its treatment will depend on the patient’s symptoms, size, location, whether it is one or multiple, and whether or not she suffers from infertility. It is clear that submucosal fibroids have a negative impact on fertility and with respect to intramural fibroids it is known that fibroids larger than 4 cm alter the probability of pregnancy, however there are studies that show that even smaller or multiple fibroids could affect pregnancy rates. There are multiple options for the treatment of fibroids; however, patients who are candidates for expectant, medical or surgical management should be individualized, and especially if they are going to be taken to surgery, an excellent mapping of fibroids prior to surgical intervention is recommended. Minimally invasive surgery continues to be the approach of choice, it should be left for the open approach in cases in which Laparoscopy is contraindicated or the patient with multiple myomatosis.
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