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https://www.readbyqxmd.com/read/29101642/prenatal-surgery-for-spina-bifida-a-therapeutic-dilemma-proceedings-of-the-shine-conference-belfast
#1
Mano Shanmuganathan, Deborah A Sival, Kelly-Ann Eastwood, Katie Morris, Jacqueline Cartmill, Axel Heep, Janusz Bohosiewicz, Agnieszka Pastuszka, Alyson Hunter, Amanda Ali, Roy McConnell, Darach Crimmins, Fergal Malone, Carolyn Bailie, Jan Deprest, Cathy McKillop, Zarko Alfirevic, Fionnuala McAuliffe, Stephen Ong
This is a transcript of a scientific conference on the subject of prenatal surgery for spina bifida. It represents the views of three patients, an obstetrician, a postnatal neurosurgeon, a neonatologist, a paediatric neurologist, two surgeons who practice open spina bifida foetal surgery, a fetoscopic surgeon and an obstetrician experienced in randomised trials and systematic reviews. Implications for current practice and recommendations for future research are also discussed in detail.
November 3, 2017: Irish Journal of Medical Science
https://www.readbyqxmd.com/read/29056972/methotrexate-and-valproic-acid-affect-early-neurogenesis-of-human-amniotic-fluid-stem-cells-from-myelomeningocele
#2
Vardine Sahakyan, Enrico Pozzo, Robin Duelen, Jan Deprest, Maurilio Sampaolesi
Myelomeningocele (MMC) is a severe type of neural tube defect (NTD), in which the backbone and spinal canal do not close completely during early embryonic development. This condition results in serious morbidity and increased mortality after birth. Folic acid significantly reduces, and conversely, folate antagonist methotrexate (MTX) and valproic acid (VPA) increase the occurrence of NTDs, including MMC. How these pharmacological agents exactly influence the early neurulation process is still largely unclear...
2017: Stem Cells International
https://www.readbyqxmd.com/read/29024208/does-the-site-of-the-cord-insertion-increase-the-risk-of-adverse-outcome-twin-to-twin-transfusion-syndrome-and-discordant-growth-in-monochorionic-twin-pregnancies
#3
Isabel Couck, Nada Mourad Tawfic, Jan Deprest, Luc De Catte, Roland Devlieger, Liesbeth Lewi
BACKGROUND: It is insufficiently known to what degree the site of the cord insertions influences the risk of a complicated outcome in monochorionic twin pregnancies. OBJECTIVES: The purpose is to examine if the site of cord insertions as determined on prenatal ultrasound scan increases the risk of adverse outcome -defined as fetal or neonatal loss or birth prior to 32 weeks-, twin-to-twin transfusion syndrome (TTTS) and discordant growth. METHODS: We retrospectively studied a consecutive cohort of monochorionic diamniotic twin pregnancies followed from the first trimester...
October 11, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28950821/modelling-bronchopulmonary-dysplasia-in-animals-arguments-for-the-preterm-rabbit-model
#4
Thomas Salaets, Andre Gie, Bieke Tack, Jan Deprest, Jaan Toelen
Bronchopulmonary dysplasia (BPD) remains a frequent and disabling consequence of preterm birth, despite the recent advances in neonatal intensive care. There is a need to further improve outcomes and many novel therapeutic or preventive strategies are therefore investigated in animal models. We discuss in this review the aspects of human BPD pathophysiology and phenotype, which ideally should be mimicked by an animal model for this disease. Prematurity remains the common denominator in the heterogeneous spectrum of human BPD, and preterm animal models thus have a clear translational advantage...
September 26, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28866670/clinical-outcome-for-congenital-diaphragmatic-hernia-at-the-age-of-1-year-in-the-era-of-fetal-intervention
#5
Eva Van Ginderdeuren, Karel Allegaert, Herbert Decaluwe, Jan Deprest, Anne Debeer, Marijke Proesmans
BACKGROUND: Congenital diaphragmatic hernia (CDH) is an abnormal development of the diaphragm leading to high neonatal mortality and morbidity. Beyond the neonatal period, prospective data on overall long-term outcome in CDH survivors is scarce. In particular, for those treated with fetoscopic endoluminal tracheal occlusion (FETO), a promising new technique to increase survival chances for severe cases, the outcomes are even less documented. AIM: To prospectively document the clinical outcome of CDH at 1 year including FETO-treated infants in relation to ante- and postnatal variables...
September 2, 2017: Neonatology
https://www.readbyqxmd.com/read/28842991/the-amniotic-fluid-as-a-source-of-mesenchymal-stem-cells-with-lung-specific-characteristics
#6
Flore Lesage, Silvia Zia, Julio Jiménez, Jan Deprest, Jaan Toelen
The amniotic fluid is a clinically accessible source of mesenchymal stem cells (AF-MSC) during gestation, which enables autologous cellular therapy for perinatal disorders. The origin of AF-MSC remains elusive: renal and neuronal progenitors have been isolated from the AF-MSC pool, yet no cells with pulmonary characteristics. We analyzed gene expression of pulmonary and renal markers of 212 clonal lines of AF-MSC isolated from amniocentesis samples. AF-MSC were cultured on dishes coated with extracellular matrix (ECM) proteins from decellularized fetal rabbit lungs...
August 26, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28803112/in-vivo-documentation-of-shape-and-position-changes-of-mri-visible-mesh-placed-in-rectovaginal-septum
#7
Iva Urbankova, Nikhil Sindhwani, Geertje Callewaert, Alice Turri, Rita Rinkijevic, Lucie Hympanova, Andrew Feola, Jan Deprest
BACKGROUND AND OBJECTIVE: Large deformations in synthetic meshes used in pelvic organ prolapse surgery may lead to suboptimal support for the underlying tissue, graft-related complications as well as recurrence. Our aim was to quantify in vivo longitudinal changes in mesh shape and geometry in a large animal model. We compare two commonly used mesh shapes, armed and flat, that are differently affixed. The secondary outcomes were active and passive biomechanical properties. METHODS: A total of 18 animals were used...
August 5, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28752425/minimal-modulation-of-the-host-immune-response-to-sis-matrix-implants-by-mesenchymal-stem-cells-from-the-amniotic-fluid
#8
F Lesage, S Pranpanus, F M Bosisio, M Jacobs, S Ospitalieri, J Toelen, J Deprest
PURPOSE: Surgical restoration of soft tissue defects often requires implantable devices. The clinical outcome of the surgery is determined by the properties inherent to the used matrix. Mesenchymal stem cells (MSC) modulate the immune processes after in vivo transplantation and their addition to matrices is associated with constructive remodeling. Herein we evaluate the potential of MSC derived from the amniotic fluid (AF-MSC), an interesting MSC source for cell therapeutic applications in the perinatal period, for immune modulation when added to a biomaterial...
July 27, 2017: Hernia: the Journal of Hernias and Abdominal Wall Surgery
https://www.readbyqxmd.com/read/28709445/twin-twin-transfusion-syndrome-study-protocol-for-developing-disseminating-and-implementing-a-core-outcome-set
#9
Asma Khalil, Helen Perry, James Duffy, Keith Reed, Ahmet Baschat, Jan Deprest, Kurt Hecher, Liesbeth Lewi, Enrico Lopriore, Dick Oepkes
BACKGROUND: Twin-Twin Transfusion Syndrome (TTTS) is associated with an increased risk of perinatal mortality and morbidity. Several treatment interventions have been described for TTTS, including fetoscopic laser surgery, amnioreduction, septostomy, expectant management, and pregnancy termination. Over the last decade, fetoscopic laser surgery has become the primary treatment. The literature to date reports on many different outcomes, making it difficult to compare results or combine data from individual studies, limiting the value of research to guide clinical practice...
July 14, 2017: Trials
https://www.readbyqxmd.com/read/28680967/a-continuum-robot-and-control-interface-for-surgical-assist-in-fetoscopic-interventions
#10
George Dwyer, Francois Chadebecq, Marcel Tella Amo, Christos Bergeles, Efthymios Maneas, Vijay Pawar, Emanuel Vander Poorten, Jan Deprest, Sebastien Ourselin, Paolo De Coppi, Tom Vercauteren, Danail Stoyanov
Twin-twin transfusion syndrome requires interventional treatment using a fetoscopically introduced laser to sever the shared blood supply between the fetuses. This is a delicate procedure relying on small instrumentation with limited articulation to guide the laser tip and a narrow field of view to visualize all relevant vascular connections. In this letter, we report on a mechatronic design for a comanipulated instrument that combines concentric tube actuation to a larger manipulator constrained by a remote centre of motion...
March 8, 2017: IEEE Robotics and Automation Letters
https://www.readbyqxmd.com/read/28668592/physiologic-musculofascial-compliance-following-reinforcement-with-electrospun-polycaprolactone-ureidopyrimidinone-mesh-in-a-rat-model
#11
Lucie Hympanova, Marina Gabriela Monteiro Carvalho Mori da Cunha, Rita Rynkevic, Manuel Zündel, Monica Ramos Gallego, Jakob Vange, Geertje Callewaert, Iva Urbankova, Frank Van der Aa, Edoardo Mazza, Jan Deprest
PURPOSE: Electrospun meshes may be considered as substitutes to textile polypropylene implants. We compared the host response and biomechanical properties of the rat abdominal wall following reinforcement with either polycaprolactone (PCL) modified with ureidopyrimidinone-motifs (UPy) or polypropylene mesh. METHODS: First we measured the response to cyclic uniaxial load within the physiological range both dry (room temperature) and wet (body temperature). 36 rats underwent primary repair of a full-thickness abdominal wall defect with a polypropylene suture (native tissue repair), or reinforced with either UPy-PCL or ultra-light weight polypropylene mesh (n = 12/group)...
October 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28664994/trauma-induces-overexpression-of-cx43-in-human-fetal-membrane-defects
#12
David W Barrett, Aumie Kethees, Christopher Thrasivoulou, Alvaro Mata, Alex Virasami, Neil J Sebire, Alex C Engels, Jan A Deprest, David L Becker, Anna L David, Tina T Chowdhury
OBJECTIVE: We developed an in vitro model to examine whether trauma induces connexin 43 (Cx43) expression and collagen organisation in the amniotic membrane (AM) of fetal membrane (FM) defects. METHOD: Term human FM was traumatised in vitro. Cell morphology and Cx43 were examined in the wound edge AM by immunofluorescence (IMF) confocal microscopy and compared to control AM. Collagen microstructure was examined by second harmonic generation (SHG) imaging. Cell viability was assessed with calcein and ethidium staining...
September 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28656648/prenatal-incision-of-ureterocele-causing-bladder-outlet-obstruction-a-multicenter-case-series
#13
Gihad E Chalouhi, Anne-Maude Morency, Roland De Vlieger, José Maria Martinez, Thomas Blanc, Ryan Hodges, Alexandra Gueneuc, Greg Ryan, Jan Deprest, Eduard Gratacos, Yves Ville
We reviewed data from a cohort of fetuses with ureterocele diagnosed and operated prenatally in four fetal therapy centers. Inclusion criteria were (1) ureterocele confirmed on detailed fetal ultrasound examination, (2) absence of additional fetal malformations, and (3) fetal intervention to decompress the ureterocele with local institutional review boards' approval. Data on sonographic follow-up, obstetrical, neonatal outcome, and postnatal evaluation were collected. Ten cases of prenatally treated ureterocele are described...
October 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28641756/regenerative-medicine-solutions-in-congenital-diaphragmatic-hernia
#14
Paolo De Coppi, Jan Deprest
Congenital diaphragmatic hernia (CDH) remains a major challenge and associated mortality is still significant. Patients have benefited from current therapeutic options, but most severe cases are still associated to poor outcome. Regenerative medicine is emerging as a valid option in many diseases and clinical trials are currently happening for various conditions in children and adults. We report here the advancement in the field which will help both in the understanding of further CDH development and in offering new treatment options for the difficult situations such as repair of large diaphragmatic defects and lung hypoplasia...
June 2017: Seminars in Pediatric Surgery
https://www.readbyqxmd.com/read/28608604/the-2016-malcolm-ferguson-smith-young-investigator-award
#15
EDITORIAL
Alessandro Ghidini, Diana W Bianchi, Brynn Levy, Jan Deprest, Tim van Mieghem, Lyn S Chitty, Amanda McLean-Inglis
No abstract text is available yet for this article.
June 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28564708/modulation-of-the-early-host-response-to-electrospun-polylactic-acid-matrices-by-mesenchymal-stem-cells-from-the-amniotic-fluid
#16
Flore Lesage, Sabiniano Roman, Savitree Pranpanus, Simona Ospitalieri, Silvia Zia, Julio Jimenez, Sheila MacNeil, Jaan Toelen, Jan Deprest
No abstract text is available yet for this article.
May 31, 2017: European Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28536839/maternal-fetal-surgery-for-myelomeningocele-some-thoughts-on-ethical-legal-and-psychological-issues-in-a-western-european-situation
#17
Frank Van Calenbergh, Luc Joyeux, Jan Deprest
BACKGROUND: The results of the Management of Myelomeningocele Study (MOMS) randomized controlled trial have demonstrated that maternal-fetal surgery (MFS) for myelomeningocele (MMC) compared to postnatal MMC repair has clear neurological benefits for the child at 12 and 30 months of age. Level I evidence nevertheless does not provide answers to many questions in this delicate field. Since the beginning of 2012, our fetal center has been offering MFS for spina bifida aperta (SBA) to patients from different European and non-European countries, in a societal context where termination of pregnancy is the option chosen by most patients when being informed of this diagnosis...
August 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28531885/fetal-treatment-2017-the-evolution-of-fetal-therapy-centers-a-joint-opinion-from-the-international-fetal-medicine-and-surgical-society-ifmss-and-the-north-american-fetal-therapy-network-naftnet
#18
Anita J Moon-Grady, Ahmet Baschat, Darrell Cass, Mahesh Choolani, Joshua A Copel, Timothy M Crombleholme, Jan Deprest, Stephen P Emery, Mark I Evans, Francois I Luks, Mary E Norton, Greg Ryan, Kuojen Tsao, Ross Welch, Michael Harrison
More than 3 decades ago, a small group of physicians and other practitioners active in what they called "fetal treatment" authored an opinion piece outlining the current status and future challenges anticipated in the field. Many advances in maternal, neonatal, and perinatal care and diagnostic and therapeutic modalities have been made in the intervening years, yet a thoughtful reassessment of the basic tenets put forth in 1982 has not been published. The present effort will aim to provide a framework for contemporary redefinition of the field of fetal treatment, with a brief discussion of the necessary minimum expertise and systems base for the provision of different types of interventions for both the mother and fetus...
May 23, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28528813/surgical-treatment-of-female-stress-urinary-incontinence-do-tapes-stand-the-test-of-time
#19
EDITORIAL
Frank Van der Aa, Jan Deprest, Dirk De Ridder
No abstract text is available yet for this article.
May 18, 2017: European Urology
https://www.readbyqxmd.com/read/28508418/quantitative-analysis-of-the-cervical-texture-by-ultrasound-in-the-mid-pregnancy-is-associated-with-spontaneous-preterm-birth
#20
Núria Baños, Alvaro Perez-Moreno, Carla Julià, Clara Murillo-Bravo, David Coronado, Eduard Gratacos, Jan Deprest, Montse Palacio
OBJECTIVE: New tools are required to identify women at increased risk of spontaneous preterm birth (sPTB). Quantitative texture analysis by ultrasound has been used to extract robust features from the ultrasound image of a given tissue to detect subtle changes in its microstructure. This may also be applied to the cervix. We aimed to determine if there is an association between quantitative analysis of the cervical texture (CTx) by ultrasound in the mid-trimester of pregnancy and sPTB <37(+0) weeks...
May 15, 2017: Ultrasound in Obstetrics & Gynecology
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