Purpose: To establish the frequency of vacuum extraction among parturients with twin pregnancies, identify the risk factors and perinatal outcomes.
Methods: A retrospective cohort database study was conducted between 2005-2018. Twin fetuses with vertex presentation >34 weeks gestation who achieved vaginal delivery were included. Outcomes were compared between neonates who were delivered by vacuum extraction and neonates delivered by spontaneous vaginal delivery (aORs; [95% CI]).
Results: A total of 1751 neonates of 905 parturients with twin pregnancies met inclusion criteria, of which 163 (18%) parturients had vacuum extraction and 225 (12.8%) neonates were delivered by vacuum extraction. The most significant risk factors for vacuum extraction were primiparity (6.79 [4.77-9.66]), previous cesarean delivery (5.59 [3.13-9.97]), and epidural analgesia (4.34 [1.83-10.31]). Vacuum extractions were associated with a spectrum of adverse maternal outcomes (2.60 [1.61-4.19]), particularly postpartum hemorrhage and its associated morbidities. From the neonatal aspect, vacuum extraction deliveries were associated with a composite of birth trauma injuries (21.81 [6.43-73.91]).
Conclusion: Vacuum extractions among twin pregnancies were found to be associated with significantly higher rates of postpartum hemorrhage, blood transfusion, and perinatal birth trauma. These findings should be presented to women when counseling on mode of delivery and considered individually against cesarean delivery disadvantages.
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http://dx.doi.org/10.1007/s00404-020-05668-2 | DOI Listing |
J Fungi (Basel)
December 2024
Department of Food Engineering, University of Bío-Bío, Chillán 3780000, Chile.
The wild mushroom , also known as digüeñe, is a parasitic ascomycete of trees endemic to southern Chile. This species of wild mushroom is of great nutritional importance, especially for the Mapuche indigenous communities, and is highly sought after. Edible wild mushrooms, rich in bioactive compounds, are a potential source of health-promoting components.
View Article and Find Full Text PDFSci Rep
January 2025
Nagoya University, Furo, Chikusa, Nagoya, Aichi, 464-8601, Japan.
Alkali antimonide semiconductor photocathodes are promising candidates for high-brightness electron sources for advanced accelerators, including free-electron lasers (FEL), due to their high quantum efficiency (QE), low emittance, and high temporal resolution. Two challenges with these photocathodes are (1) the lack of a universal deposition recipe to achieve crystal stoichiometries and (2) their high susceptibility to vacuum contamination, which restricts their operation pressure to ultrahigh vacuums and leads to a short lifetime and low extraction charge. To resolve these issues, it is essential to understand the elemental compositions of deposited photocathodes and correlate them to robustness.
View Article and Find Full Text PDFAdv Mater
January 2025
Department of Materials Science and Engineering, Key University Laboratory of Highly Efficient Utilization of Solar Energy and Sustainable Development of Guangdong, Southern University of Science and Technology, Shenzhen, 518055, China.
Nickel oxide (NiO) is considered as a potential hole transport material in the fabrication of lead-tin (Pb-Sn) perovskite solar cells (PSCs) for tandem applications. However, the energy level mismatch and unfavorable redox reactions between Ni species and Sn at the NiO/perovskite interface pose challenges. Herein, high-performance Pb-Sn-based inorganic PSCs are demonstrated by modulating the NiO/perovskite interface with a multifunctional 4-aminobenzenesulfonic acid (4-ABSA) interlayer.
View Article and Find Full Text PDFAm J Transl Res
December 2024
Department of Urinary Surgery, Jiashan County Chinese Medicine Hospital Jiaxing, Zhejiang, China.
Objective: To explore the effects and safety of the flexible vacuum-assisted ureteral access sheath combined with a flexible ureteroscope for the treatment of large renal stones over 3 cm.
Methods: In this retrospective study, 122 patients with kidney stones (stone diameter ≥ 3 cm) admitted to our hospital from January 2018 to December 2022 were selected as the study subjects. According to different surgical methods, these patients were divided into an observation group and a control group, with 61 cases in each group.
Sci Rep
January 2025
School of Safety and Management Engineering, Hunan Institute of Technology, Hengyang, 421002, China.
The extraction of coal seams with high gas content and low permeability presents significant challenges, particularly due to the extended period required for gas extraction to meet safety standards and the inherently low extraction efficiency. Hydraulic fracturing technology, widely employed in the permeability enhancement of soft and low-permeability coal seams, serves as a key intervention. This study focuses on the high-rank raw coal from the No.
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