Objective: The evaluation of the effectiveness and safety of hysteroscopic management of residual trophoblastic tissue and to verify the miniinvasivity with the second-look hysteroscopy.
Design: Prospective study.
Setting: Department of Gynecology and Obstetrics, First Faculty od Medicine, Charles University and General Teaching Hospital, Prague.
Methodology: From 11/2007 to 6/2011, 58 patiens with abnormal uterine bleeding longer than 6 weeks after delivery or abortion underwent ultrasound examination with fading of hyperechogenic content larger than 15mm in AP projection. There was the bipolar resectoscopic system used under general anestesia. Second-look office hysteroscopy was recommended to all patiens 4-6 weeks after a primary procedure.
Results: Median operative time was 15 (7-36) minutes, median time of hospitalisation was 7.1 hours. In four patients was necessary to divide the procedure into two phases (after 14 days). There was no serious uterine bleeding or inflamation in our study group. Only one serious surgical complication was registered: an uterine perforation in patient after 2 cesarean sections, there was the laparoscopic suture provided. The second-look hysteroscopy was provided in 45 patients (77.6%). There was normal intrauterine finding in 16 (35.6%) patients, in 29 patients (64.4%) a small residual trophoblastic tissue was resected. There was no secondary intrauterine adhesive process described.
Conclusion: Hysteroscopic resection is a safe and efficient operative technique, which is suitable for management of larger trophoblastic tissue left after delivery or abortion.
Download full-text PDF |
Source |
---|
iScience
January 2025
Mammalian Embryo and Stem Cell Group, University of Cambridge, Department of Physiology, Development and Neuroscience, Downing Street, Cambridge CB2 3DY, UK.
The implantation of the mouse blastocyst initiates a complex sequence of tissue remodeling and cell differentiation events required for morphogenesis, during which the extraembryonic primitive endoderm transitions into the visceral endoderm. Through single-cell RNA sequencing of embryos at embryonic day 5.0, shortly after implantation, we reveal that this transition is driven by dynamic signaling activities, notably the upregulation of BMP signaling and a transient increase in Sox7 expression.
View Article and Find Full Text PDFBiomedicines
December 2024
Division of Basic Science and Translational Research, Department of Obstetrics and Gynecology, The University of Texas Medical Branch at Galveston, Galveston, TX 77555, USA.
Preeclampsia (preE) is a severe multisystem hypertensive syndrome of pregnancy associated with ischemia/hypoxia, angiogenic imbalance, apolipoprotein E (ApoE)-mediated dyslipidemia, placental insufficiency, and inflammation at the maternal-fetal interface. Our recent data further suggest that preE is associated with impaired autophagy, vascular dysfunction, and proteinopathy/tauopathy disorder, similar to neurodegenerative diseases such as Alzheimer's disease (AD), including the presence of the cis stereo-isoform of phosphorylated tau (cis P-tau), amyloid-β, and transthyretin in the placenta and circulation. This review provides an overview of the factors that may lead to the induction and accumulation of cis P-tau-like proteins by focusing on the inactivation of peptidyl-prolyl cis-trans isomerase (Pin1) that catalyzes the cis to trans isomerization of P-tau.
View Article and Find Full Text PDFVet Med Sci
January 2025
Department of Anatomy, Faculty of Veterinary Medicine, Siirt University, Siirt, Turkey.
Background: A proper placentation is required for establishment and continuity of pregnancy. In sheep, placentomes are unique structures that enable nutrition and gas exchange between the mother and the foetus. Although placentomes are dynamic formations, there is limited knowledge of changes in placentomes during pregnancy.
View Article and Find Full Text PDFEur J Obstet Gynecol Reprod Biol
January 2025
Department of Obstetrics and Gynecology, Ministry of Health, Ankara Bilkent City Hospital, Ankara, Turkey; University of Health Sciences, Ankara Bilkent City Hospital, Ankara, Turkey.
Placental mesenchymal dysplasia (PMD) is a rare placental pathology that sonographically mimics gestational trophoblastic diseases. However, mesenchymal dysplasia can be distinguished from other conditions by the presence of villous edema and the absence of trophoblastic proliferation in the placental tissue. This pathology has been demonstrated to be associated with fetal growth restriction, Beckwith-Wiedemann syndrome, some chromosomal abnormalities and intrauterine fetal demise.
View Article and Find Full Text PDFCirc Res
January 2025
Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Ontario, Canada (C.P., S.A., J.W.A., R.L., F.N., J.S., I.C.).
Background: Iron is an essential micronutrient for cell survival and growth; however, excess of this metal drives ferroptosis. Although maternal iron imbalance and placental hypoxia are independent contributors to the pathogenesis of preeclampsia, a hypertensive disorder of pregnancy, the mechanisms by which their interaction impinge on maternal and placental health remain elusive.
Methods: We used placentae from normotensive and preeclampsia pregnancy cohorts, human H9 embryonic stem cells differentiated into cytotrophoblast-like cells, and placenta-specific preeclamptic mice.
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!