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Observational studies have demonstrated that placental cord drainage can shorten the length of the third stage of labour and reduce blood loss during vaginal deliveries. The aim of our work was to evaluate the existing evidence for the effectiveness of placental cord drainage in the third stage of labour. PubMed, Embase, the Cochrane Library, Web of Science, Google Scholar and 50 journals were searched up to the 4th of June, 2017. Randomized controlled trials comparing placental cord drainage with no cord drainage in the third stage of labour during vaginal delivery were included. Nine studies with 2653 participants were included. Compared with clamping the umbilical cord, umbilical cord drainage during the third stage of labour shortened the third-stage duration by 2.28 minutes (95% confidence interval (CI), -3.22 to -1.33), but did not reduce the amount of blood loss (-31.99 mL, -86.08 to 22.09). For women with normal vaginal deliveries, the incidence of postpartum haemorrhage was reduced by 3%. Placental cord drainage is a simple and non-invasive procedure that should be considered after delayed cord clamping. Further studies about the physiological processes and effects of placental cord drainage in additional circumstances are needed.
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http://dx.doi.org/10.1038/s41598-017-07722-7 | DOI Listing |
Nat Cardiovasc Res
September 2025
Center for Vascular Research, Institute for Basic Science and Graduate School of Medical Science and Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Republic of Korea.
The meninges, consisting of the dura, arachnoid and pia mater that surround the brain and spinal cord, have been recognized from the earliest anatomical studies. First identified in 1787, lymphatic vessels in the dura are now receiving greater attention as their contribution to cerebrospinal fluid (CSF) clearance in diverse neurological conditions is being investigated. New methods have increased the understanding of dural lymphatics, but much is still being learned about their heterogeneity, intracranial and extracranial connections, and factors that govern their functions and maintenance.
View Article and Find Full Text PDFWorld Neurosurg
September 2025
Department of Spinal Surgery, Centre Hospitalier Universitaire Vaudois, Lausanne, Switzerland. Electronic address:
Background: Spinal cord perfusion impairment is a critical secondary mechanism in acute spinal cord injury (SCI). Although lumbar cerebrospinal fluid (CSF) drainage is widely used in cardiothoracic surgery, its use in SCI remains limited. This study presents an evaluation of the safety and feasibility of lumbar CSF drainage with intrathecal pressure (ITP) and spinal cord perfusion pressure (SCPP) monitoring in acute SCI patients.
View Article and Find Full Text PDFBiology (Basel)
July 2025
Institute of Molecular Regenerative Medicine, Paracelsus Medical University, 5020 Salzburg, Austria.
Spinal cord injury (SCI) frequently leads to neurogenic lower urinary tract dysfunction, for which appropriate bladder management is essential. While clinical care relies on continuous low-pressure drainage in the acute phase, rat models commonly use twice-daily manual bladder expression-a method known to generate high intravesical pressures and retention. This study evaluated the impact of this standard practice on bladder tissue remodeling by comparing it to continuous drainage via high vesicostomy in a rat SCI model.
View Article and Find Full Text PDFFront Surg
August 2025
Department of Orthopedics, Beijing Tongren Hospital, Capital Medical University, Beijing, China.
Objective: This study aims to retrospectively analyze 104 patients diagnosed with cervical spinal cord injury without fracture or dislocation (CSCIwoFD) who underwent surgical treatment, in order to compare the effects of early vs. delayed surgical intervention on neurological functional recovery.
Methods: Patients diagnosed with CSCIwoFD and treated surgically at our institution between August 2020 and January 2023 were retrospectively reviewed.
Zh Vopr Neirokhir Im N N Burdenko
August 2025
Almazov National Medical Research Center, St. Petersburg, Russia.
The main functional parts of the glymphatic system are perivascular spaces and surrounding astrocytes. Cerebrospinal fluid enters the brain parenchyma from subarachnoid cisterns through perivascular Virchow-Robin spaces and passes into the interstitium through aquaporin channels in astrocytes. Then, cerebrospinal fluid removes metabolic products and mixes with interstitial fluid.
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