Ju Eun Jeong

Measurement of endometrial and uterine vascularity by transvaginal ultrasonography in predicting pregnancy outcome during frozen-thawed embryo transfer cycles.

An appropriate endometrial condition and vascular supply are usually considered essential for implantation of an embryo. This study was performed to assess the role of endometrial and uterine vascularity status measurement in predicting pregnancy outcome during frozen–thawed embryo transfer cycles.

Fetomaternal hemorrhage caused by an intraplacental choriocarcinoma

Intraplacental choriocarcinoma is rare, and occasionally results in massive feto-maternal hemorrhage. We describe a case of an intraplacental choriocarcinoma diagnosed postpartum after a preterm cesarean delivery of a severely anemic newborn. The microscopic examination showed that clusters of malignant trophoblasts arose from residual normal chorionic villi and infi ltrat ed into the intervillous spaces, confirmed as intraplacental choriocarcinoma. Fetomaternal hemorrhage is a rare complication of choriocarcinoma but its presence should always warrant detailed examination of placenta, mother, and infant.

Clinicopathologic review of extrapelvic endometriosis

Results There were 30 patients who were diagnosed extrapelvic endometriosis surgically with a mean age of 38 years. The main symptom was palpable mass with pain, noncyclic (33%, n=9), or cyclic (67%, n=21). Fifteen endometriomas were found in the previous scar of cesarean section and laparoscopic surgery. Three endometriomas were noted in episiotomy site and ten were in cervix. Inguinal and vaginal endometriosis, one case was investigated, respectively.

Vitrification solution without sucrose for cryopreservation in mouse blastocysts

Objective This study was designed to investigate the survival rate of vitrified mouse blastocysts depending on the presence or absence of sucrose in vitrification solution. Methods Mouse two-cell embryos were collected and cultured to blastocysts. Two vitrification solutions were prepared. The control solution was composed of 25% glycerol, 25% ethylene glycol, and 0.5 M sucrose (G25E250.5S) containing 2.5 mL glycerol, 2.5 mL ethylene glycol, 2 mL SSS, and 0.855 g sucrose in 5 mL PB1. The experimental solution was composed of 25% glycerol and 25% ethylene glycol (G25E25) and contained 2.5 mL glycerol and 2.5 mL ethylene glycol in 5 mL PB1. Artificial shrinkage was conducted by aspirating the blastocoelic fluid using an ICSI pipette. To examine the effect of sucrose in the vitrification solution on the survival rate of mouse blastocysts, the shrunken-equilibrated blastocysts were rehydrated or vitrified after being exposed to one of the two vitrification solutions. After exposure and the vitrification-thawing process, the re-expansion rate and hatching rate were evaluated after 6 hours of in vitro culture. Results The re-expansion rate of mouse blastocysts exposed to vitrification solution with and without sucrose were not different in the experimental solution (without sucrose) (98%) and the control solution (with sucrose) (92%) (p>0.05). The hatching rate was higher in the experimental solution (95%) than in the control solution (88%), but did not differ across two treatments (p>0.05). The re-expansion rate of mouse blastocysts vitrified in the control solution was 92% and 94%, respectively (p>0.05), and the hatching rate was higher in the experimental solution (90%) than in the control solution (74%) (p<0.05). Conclusion Sucrose need not be added in vitrification solution for freezing of artificially shrunken mouse blastocysts.