Ultra-Fast Vitrification: Minimizing the Toxicity of Cryoprotective Agents and Osmotic Stress in Mouse Oocyte Cryopreservation.

Globally, women have been adopting oocyte cryopreservation (OC) for fertility preservation for various reasons, such as inevitable gonadotoxic treatment for specific pathologic states and social preferences. While conventional vitrification (C-VIT) has improved the success rate of OC, challenges of possible toxicities of high-concentration cryoprotective agents and osmotic stress persist. To overcome these challenges, we evaluated the ultra-fast vitrification (UF-VIT) method, which reduces the equilibration solution stage exposure time compared to C-VIT by observing mouse oocyte intracellular organelles and embryonic development. Consequently, compared to fresh mouse oocytes, UF-VIT presented significant differences only in endoplasmic reticulum (ER) intensity and mitochondrial (MT) distribution. Meanwhile, C-VIT showed substantial differences in the survival rate, key ER and MT parameters, and embryonic development rate. UF-VIT exhibited considerably fewer negative effects on key MT parameters and resulted in a notably higher blastocyst formation rate than C-VIT. Meiotic spindle (spindle and chromosomes) morphology showed no significant changes between the groups during vitrification/warming (VW), suggesting that VW did not negatively affect the meiotic spindle of the oocytes. In conclusion, UF-VIT seems more effective in OC owing to efficient cytoplasmic water molecule extraction, osmotic stress reduction, and minimization of cell contraction and expansion amplitude, thus compensating for the drawbacks of C-VIT.

Assessment of transcranial Doppler indices after MgSO4 administration in severe preeclamptic women with neurologic symptoms.

PURPOSE: To investigate the effect of intravenous MgSO4 on maternal cerebral hemodynamics as well as the association between altered Doppler indices of the ophthalmic arteries and ocular lesions in patients with preeclampsia. METHODS: After each of the 15 included patients was diagnosed with preeclampsia, MgSO4 was infused followed by transcranial Doppler tests of the indices of the ophthalmic, anterior, middle, posterior cerebral, vertebral, and basilar arteries, followed by a second MgSO4 infusion. The peak, mean, diastolic velocity, and pulsatile and resistance indices of each artery were automatically measured during testing. Based on the emergent data, the cerebral perfusion pressure, resistance-area product, and cerebral flow index were calculated. RESULTS: The cerebral perfusion pressure of the posterior cerebral arteries significantly decreased following the infusion of MgSO4 (p < 0.05). Before the infusion of MgSO4, cerebral perfusion pressure and cerebral flow index of the ophthalmic arteries were significantly increased (p < 0.05) in the preeclamptic pregnant patients with ocular lesions compared those without ocular lesions. After the infusion of MgSO4, the cerebral perfusion pressure and cerebral flow index of both ophthalmic arteries were slightly decreased, but the difference was not significant. CONCLUSIONS: Altered Doppler indices following the infusion of MgSO4 suggest significant changes in the hemodynamics of the posterior cerebral and ophthalmic arteries that are particularly related to the neurological signs and symptoms of women with preeclampsia. These findings may improve the understanding of the mechanism of the cerebral complications of preeclampsia. Advancing comprehension of these underlying mechanisms is postulated to play a pivotal role in the mitigation of hypertensive encephalopathy associated with preeclampsia.

Correlation of Sarcopenic Obesity on Various Cardiometabolic Risk Factors and Fracture Risk in Mid-Aged Korean Women.

OBJECTIVES: This study aimed to investigate the correlation of sarcopenic obesity with various cardiometabolic risk factors and fracture risk in middle-aged Korean women. METHODS: In this cross-sectional study, the medical records of 1,775 women who had visited Pusan National University Hospital for routine health screenings from 2010 to 2016 were reviewed. The patients were divided into four groups as follows: group 1, nonsarcopenic, nonobese (NS-NO); group 2, nonsarcopenic, obese (NS-O); group 3, sarcopenic, nonobese (S-NO); and group 4, sarcopenic, obese (S-O). Each patient was assessed based on self-reported questionnaires and individual interviews with a healthcare provider. The Fracture Risk Assessment Tool (FRAX) was used to assess bone fracture risk. RESULTS: Postmenopausal women accounted for 68.5% of the total patient population. The proportion of each group was as follows: NS-NO, 71.2%; NS-O, 17.9%; S-NO, 10.2%; and S-O, 0.7%. Statistical analysis of various parameters associated with metabolic and cardiovascular risks revealed that the S-O group had more patients with hypertension, diabetes, osteopenia, and metabolic syndrome. The FRAX scores were significantly higher in the S-O group than in other groups. CONCLUSIONS: Middle-aged women with obesity and reduced muscle mass, known as sarcopenic obesity, are at increased risk of hypertension, diabetes, and metabolic syndrome. Furthermore, sarcopenic obesity, individual cardiometabolic risks, and menopause can increase the bone fracture risk.

Commentary on the new 2022 European Society of Human Reproduction and Embryology (ESHRE) endometriosis guidelines.

Endometriosis is a prevalent benign illness defined by the presence of endometrial glands and stroma outside of the uterine cavity, primarily on the ovary, pelvic peritoneum, and rectovaginal septum, resulting in a variety of symptoms, including dysmenorrhea and infertility. Traditionally, prolonged medical therapy has been needed in most cases since a conservative approach to surgery has usually been taken, especially in young women. In 2022, new European Society of Human Reproduction and Embryology (ESHRE) guidelines were published that present different directions for diagnosis and treatment from the past. Furthermore, the guidelines for the diagnosis and management of endometriosis are more precise and applicable than in previous editions. Thus, referring to the representative changes in the new guidelines and important updates will be beneficial for the diagnosis and management of endometriosis. This paper provides a brief overview of these developments.

Non-teratomatous ossification of the ovary, a rare entity: case report and review of the literature.

Ossification in non-teratomatous ovaries is extremely rare. This phenomenon may occur in various non-neoplastic or neoplastic ovarian diseases. A 34-year-old woman presented with lower abdominal pain of about 3 months. Transvaginal ultrasonography and plain abdominal radiography revealed an ovoid, calcified mass in left adnexa. Computed tomography (CT) demonstrated a well-defined cystic lesion measuring 7.7 × 5.1 cm with internal hemorrhage and peripheral curvilinear calcifications. The patient underwent laparoscopic surgery. The cut surface revealed a hemorrhagic cyst with a hardened wall and a muddy, yellow surface. Histologic examination revealed an ovarian hemorrhagic cyst with ossification. The authors present an unusual case of ossification in the ovary associated with an old hemorrhagic cyst and include a review of the literature.

Initial Experience of Laparoscopic Pectopexy for Apical Prolapse in South Korea.

Pelvic organ prolapse (POP) is the herniation or bulging of the pelvic organs to or beyond the vaginal introitus. POP is a common condition affecting more than half of parous women. We recently performed POP surgery and repair in 37 patients using laparoscopic pectopexy, a new technique for apical prolapse surgery, in women with advanced POP. The surgery was performed by a single surgeon at a single institute. The methods of operation were divided into total laparoscopic hysterectomy with pectopexy, supracervical hysterectomy with pectopexy or pectopexy alone, with additional anterior or posterior colporrhaphy selectively performed. All patients were analyzed in terms of age, body mass index, parity, estimated blood loss (EBL), operation time, intraoperative complications, and postoperative complications. The patients were followed up for at least 6 months after surgery, and the short-term clinical outcomes were analyzed. All operations were performed successfully and without severe intraoperative or postoperative complications. The mean EBL was 84 mL, and the mean operation time was 121 minutes. The operation satisfaction rates were high in most patients. All patients had no recurrence of apical prolapse, de novo urgency, frequency, incontinence, de novo constipation, or ileus. In our experience, laparoscopic pectopexy is a feasible method for apical prolapse repair as it does not have severe intraoperative or postoperative complications and de novo gastrointestinal complications. Considerable follow-up period for possible postoperative events is warranted.