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Nov 2025 DOI 10.14302/issn.2694-2283.jsem-25-5730
A. Heinrich EmilyCorresponding author
Objective The goal of this systematic review is to identify common themes amongst acute spinal cord injuries (SCI) in equestrian athletes. Design A systematic review was performed using PubMed, CINAHL Plus with Full Text (EBSCO), Cochrane Library, and Scopus with pre-determined MESH terms. The initial search returned 354 studies. Following PRISMA guidelines, 13 articles were included. Exclusion criteria included injuries to the horse only, non-English language, cauda equina, and case reports. Data extraction was completed, and common findings were evaluated narratively due to heterogeneity of data. Results Seven manuscripts listed specific horse-related activities that caused SCI, with fall from horse as the highest percentage of injury. Nine articles identified the injury region, with large variations and no clear dominant area of injury. Five articles identified the length of hospital stay with ranges from 1 to 82 days. Four articles looked at the association of professional vs non-professional riders. Only two articles evaluated helmet use at time of injury, with one article showing 81% of those with SCI used helmets, and the other showing only 35.6% utilized this safety measure. Conclusion SCI in equestrian athletes can have a wide presentation, with large variation on location of injury, length of stay, and other factors. However, non-professional riders are at greater risk of SCI and individuals are more likely to sustain injury from a fall from a horse rather than a kick or another modality of injury. Future study can elicit presenting symptoms, types of surgical intervention used, and long-term outcomes and recovery.
Apr 2024 DOI 10.14302/issn.2997-2086.jfs-23-4651
Osama Siddiqui MuhammadCorresponding author
This article has been retracted on April 10, 2025. VIEW THE RETRACTION NOTICE (https://doi.org/10.14302/issn.2997-2086.jfs-25-5857) Myelomeningocele (MMC), a class of spina bifida is a type of neural tube defect. According to the U.S. Centers for Disease Control and Prevention, each year approximately 1,400 babies born in the United States have spina bifida. The disease manifests with the lack of skin and bone covering the caudal part of the spinal cord. The patient developing such a condition often develops lifelong impaired lower limb mobility accompanied by hydrocephalus, and urinary and bowel incontinence. The available interventions include prenatal and postnatal surgery to fuse the dura. Prenatal surgery performed before 26 weeks of gestation reduces the risk of death or the need for ventriculoperitoneal shunting. It also enhanced results on a comprehensive index for mental and motor function. When compared to postnatal surgery, prenatal surgery reduces the manifestation of several secondary outcomes, including the degree of hindbrain herniation seen in the Chiari II malformation. Stem cell therapy for MMC on animal models of chick, ovine, and rodents with reported cases 15/63, 15, and 136, respectively, using human Embryonic Stem Cells (hESCs), Neural Stem Cells (NSCs), Mesenchymal Stem Cells (MSCs) showed significant coverage of MMC defect and slight neurogenesis was also observed. With an understanding of medical literature about in-utero regenerative capacity, it is to be appreciated that placental stem cells surgically seeded within a biocompatible scaffold of the cell patches can play a part in alleviating the spinal cord manifestation associated with MMC. Documented animal studies show that incorporating Placental Mesenchymal Stem Cells in prenatal surgery has reported improved neurogenesis and lower limb mobility. In an ovine myelomeningocele model, the development of in-utero myelomeningocele repair with human Placental Mesenchymal Stem Cells seeded onto an extracellular matrix (PMSC-ECM) enhances motor findings. The clinical trial for the first stem cell therapy on human subjects known as the “CuRe Trial: Cellular Therapy for In Utero Repair of Myelomeningocele.” is expected to be finished by 2030. So far, the cases undergoing treatment have shown significant leg movement and a greater degree of bowel and urinary control. This FDA-approved clinical trial is envisioned to be the future of treating MMC.
Feb 2022 DOI 10.14302/issn.2470-5020.jnrt-22-4092
AGBA LéhlengCorresponding author
Neurology Department, Intercommunal Hospital of Poissy/Saint-Germain-En-Laye, Poissy – France
Acute disseminated encephalomyelitis (ADEM) is a monophasic, multifocal, demyelinating, autoimmune disease that affects the central nervous system (CNS). It usually occurs after a systemic infection, usually viral, including certain coronavirus infections. A 27-year-old girl presented with complaints of left interscapular pain, paresthesias and weakness in the ipsilateral upper limb. These symptoms followed paresthesias on the fingertips of her right hand the day before her admission. she was treated two weeks earlier for pneumonia with COVID-19. Her clinical pattern resulted in a moderate weakness of the left limbs associated with tactil and algic hypoesthesia in the lower left limb ascending until the C4 level in the left side. Magnetic resonance imaging (MRI) of the brain and spinal cord showed diffuse spontaneous hypersignals on fluid-attenuated inversion recovery (FLAIR) images at the cerebral level and on T2-weighted images at the spinal level. These imaging lesions coupled with the medical history of a recent COVID-19 infection led to the diagnosis of acute disseminated encephalomyelitis (ADEM) post covid-19. The clinical condition improved rapidly with intravenous (IV) corticosteroid therapy and IV immunoglobulin combined with physiotherapy. ADEM is a demyelinating autoimmune disease which is increasingly reported during this current corona virus pandemic.
Jun 2021 DOI 10.14302/issn.2689-4602.jes-21-3868
O. Henderson JeffreyCorresponding author
Department of Science and Mathematics, Judson University, Elgin, IL 60123, USA
Hox genes, their conserved derivatives, and the pathways responsible for their expression have been extensively studied in the fruit fly, Drosophila melanogaster;the experimentation done in the Drosophila model system has given developmental biologists tools to better understand the role and significance of Hox genes and their derivatives in anterior-posterior axis determination in the Drosophila embryo. Along with this, Drosophila research opened up the door to investigation on the conservation of Hox genes between vertebrates and invertebrates. Comparative embryology in mice, chickens, pufferfish, and zebrafish have shown conserved Hox gene expression patterns specifically along the anterior-posterior axis. Recently, comparative analysis performed on dorsal-ventral axis formation showed that patterning and segmentation of the spinal cord is influenced by the action of Hox genes as well. This review will briefly consider the evolution of the vertebrate brain and the evolution and conservation of Hox genes in regulating hindbrain patterning and spinal cord development.
May 2021 DOI 10.14302/issn.2470-5020.jnrt-21-3843
R. Plasencia AndrésCorresponding author
Department of Neurointerventional Radiology at Clínica Internacional de San Borja, Lima, Peru
Background Perimedullary arteriovenous fistulae, or type IV spinal cord arteriovenous malformations, are very rare and not well-known lesions. This paper aims to present our endovascular experience with these lesions. Methods We report our experience with 4 patients with perimedullary arteriovenous fistulae, subtypes b and c (macrofistulae), exhibiting severe neurological impairment. The patients were treated with endovascular embolization. Results Complete fistula eradication was achieved in all of them. One complication occurred. We discuss the natural history, pathophysiology, clinical presentation, prognosis and embolization techniques, along with the angiographic and clinical outcomes. Conclusion Our experience with endovascular embolization as an upfront treatment allowed us to eradicate these lesions in a safe and effective way, arresting the clinical worsening and reversing partially or completely the neurological injury in most of our cases.
Mar 2020 DOI 10.14302/issn.2372-6601.jhor-20-3235
Sangaré-Bamba MahawaCorresponding author
Hematology Unit, Central Laboratory, Teaching Hospital of Yopougon, Côte d’Ivoire
Introduction Acute leukaemia are the clonal and malignant proliferation of immature hematopoietic cells (blast), blocked in their differentiation process. There is an interaction between cancer cells and the clotting process. This could be the expression of Tissue Factor (TF) on the surface of tumor cells; or a lesion of the vascular endothelium and platelet activation. The result is an activation of clotting that can lead to disseminated Intravascular Coagulation (DIC). The objective of this study was to assess the risk of DIC occurring in patients with acute leukaemia. Methods This was a cross-sectional study for analytical purposes that took place on 40 frozen samples from the biobank of the haematology laboratory of Teaching Hospital Yopougon for which the diagnosis of acute leukaemia had been taken from myelogram. The myelogram results were accompanied by hemogram data. PTTa, QT, fibrinogen and D-Dimers were performed on these samples. The risk assessment of DIC occurred was determined on the recommendations of the International Society of Thrombosis and Hemostasis (ISTH). Results We noted a female predominance with a Sex Ratio (M / F) of 0.90. The average age of the patients was 38 years (± 23 years) with extremes ranging from 2 to 84 years. ALL represented 20 % of cases against 80 % for AMLs. Hemogram parameters were characterized by severe anaemia (Tx Hb < 6 g / dL) in 52.5 % of cases; hyperleukocytosis > 100.103 / mm3 in 35 % of cases; thrombocytopenia < 25.103 / mm3 in 40 % of case; and significant blood and spinal cord blastosis (> 80 %). The lengthening of the PTTa was observed in 50 % of cases, compared to 40% for the QT. Similarly, hyperfibrinemia was present in 65% of cases. D-Dimers were high in almost all subject (95 % of cases). According to the ISTH criteria, 17.5 % of subjects were at risk of developing a DIC. Conclusion The risk of occurrence of DIC is indeed present during acute leukaemia. The parameters of haemostasis are thus found to be crucial data in the follow-up assessment during the diagnosis of acute leukaemia.
Jun 2017 DOI 10.14302/issn.2470-5020.jnrt-17-1529
Drobnik JaroslawCorresponding author
Gerontology Unit, Public Health Department, Health Sciences Faculty, Wroclaw Medical University,
Epidemiological data concerning malignant neoplasms of meninges and central nervous system parts other than brain in Poland are reported to many medical databases run by various institutions and are incongruent with each other which makes their practical interpretation highly difficult. Data on registered cases of malignant neoplasms of meninges (C70-C70.9 ICD-10) and of spinal cord, cranial nerves and parts of central nervous system other than brain (C72-C72.9 ICD-10) in the years 2006-2012, made available by public healthcare insurance provider Narodowy Fundusz Zdrowia in Lower Silesia region of Poland (NFZ) and data on new cases from Polish national neoplasms registry Krajowy Rejestr Nowotworow (KRN), were analyzed. The study revealed that those neoplasms are rare in Lower Silesia region of Poland population, number of new cases dropped in the analyzed period, but the NFZ/KRN cases ratio increased significantly especially in case of malignant neoplasms of central nervous system parts other than brain or meninges, which suggests big, and increasing with time, amount of medical procedures needed by those patients. It points at the need of respective adjustment of the level of public financing of treatment of malignant neoplasms of meninges and other central nervous system parts than brain. The study results indicate also that epidemiological reporting system in Poland shall be improved as there is growing number of Polish physicians who report mainly unspecific broad ICD-10 categories and there are year-to-year alternations of reported numbers of cases that do not have any explanation other than formal shifting in reported ICD-10 categories.