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Sadeghi-Naini M, Yousefifard M, Ghodsi Z, Azarhomayoun A, Kermanian F, Golpayegani M, Alizadeh SD, Hosseini M, Shokraneh F, Komlakh K, Vaccaro AR, Jiang F, Fehlings MG, Rahimi-Movaghar V. In-hospital mortality rate in subaxial cervical spinal cord injury patients: a systematic review and meta-analysis. Acta Neurochir (Wien) 2023; 165:2675-2688. [PMID: 37480505 DOI: 10.1007/s00701-023-05720-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 07/10/2023] [Indexed: 07/24/2023]
Abstract
PURPOSE To determine existing trends concerning in-hospital mortality in patients with traumatic subaxial cervical spinal cord injury (SCI) over the last four decades. METHODS We searched MEDLINE and EMBASE to assess the role of the following factors on in-hospital mortality over the last four decades: neurological deficit, age, surgical decompression, use of computed tomography (CT) and magnetic resonance imaging (MRI), use of methylprednisolone in the acute post-injury period, and study location (developing versus developed countries). RESULTS Among 3333 papers after deduplication, 21 studies met the eligibility criteria. The mortality rate was 17.88% [95% confidence interval (CI): 12.9-22.87%]. No significant trend in mortality rate was observed over the 42-year period (meta-regression coefficient = 0.317; p = 0.372). Subgroup analysis revealed no significant association between acute subaxial cervical SCI-related mortality when stratified by use of surgery, administration of methylprednisolone, use of MRI and CT imaging, study design (prospective versus retrospective study), and study location. The mortality rate was significantly higher in complete SCI (20.66%, p = 0.002) and American Spinal Injury Association impairment scale (AIS) A (20.57%) and B (9.28%) (p = 0.028). CONCLUSION A very low level of evidence showed that in-hospital mortality in patients with traumatic subaxial cervical SCI did not decrease over the last four decades despite diagnostic and therapeutic advancements. The overall acute mortality rate following subaxial cervical SCI is 17.88%. We recommend reporting a stratified mortality rate according to key factors such as treatment paradigms, age, and severity of injury in future studies.
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Affiliation(s)
- Mohsen Sadeghi-Naini
- Department of Neurosurgery, Lorestan University of Medical Sciences, Khoram-Abad, Iran
| | - Mahmoud Yousefifard
- Physiology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Zahra Ghodsi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Amir Azarhomayoun
- Sina Trauma and Surgery Research Center, Tehran University of Medical Science, Tehran, Iran
- Department of Neurosurgery, Sina Hospital, Tehran University of Medical Sciences, Tehran, Iran
| | - Fatemeh Kermanian
- Department of Anatomy, Alborz University of Medical Sciences, Karaj, Iran
| | - Mehdi Golpayegani
- Sina Trauma and Surgery Research Center, Tehran University of Medical Science, Tehran, Iran
| | - Seyed Danial Alizadeh
- Sina Trauma and Surgery Research Center, Tehran University of Medical Science, Tehran, Iran
- Afzalipour Faculty of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Mostafa Hosseini
- Department of Epidemiology and Biostatistics, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farhad Shokraneh
- King's Technology Evaluation Centre (KiTEC), School of Biomedical Engineering and Imaging Sciences, Faculty of Life Sciences and Medicine, London Institute of Healthcare Engineering, King's College London, London, UK
| | - Khalil Komlakh
- Department of Neurosurgery, Imam Hossein Hospital, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Alexander R Vaccaro
- Department of Orthopedics and Neurosurgery, Thomas Jefferson University and the Rothman Institute, Philadelphia, PA, USA
| | - Fan Jiang
- Department of Surgery and Spine Program, University of Toronto, Toronto Western Hospital, University Health Network, Toronto, ON, Canada
| | - Michael G Fehlings
- Department of Surgery, University of Toronto, Toronto, Canada
- Krembil Brain Institute and McEwen Centre for Regenerative Medicine, Toronto Western Hospital, University Health Network, Toronto, Canada
| | - Vafa Rahimi-Movaghar
- Sina Trauma and Surgery Research Center, Tehran University of Medical Science, Tehran, Iran.
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran.
- Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran.
- Universal Scientific Education and Research Network (USERN), Tehran, Iran.
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran.
- Visiting Professor, Spine Program, University of Toronto, Toronto, Canada.
- Sina Trauma and Surgery Research Center, Sina Hospital, Tehran University of Medical Sciences, Hassan-Abad Square, Imam Khomeini Ave, Tehran, 11365-3876, Iran.
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Incidence of traumatic spinal cord injury worldwide: A systematic review, data integration, and update. World Neurosurg X 2023; 18:100171. [PMID: 36910686 PMCID: PMC9996445 DOI: 10.1016/j.wnsx.2023.100171] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Revised: 01/29/2023] [Accepted: 01/31/2023] [Indexed: 02/04/2023] Open
Abstract
Objectives This review was designed to update our earlier systematic review which evaluated both published and unpublished evidence on the incidence of traumatic spinal cord injury (TSCI) worldwide. Methods We used various search methods including strategic searching, reference checking, searching for grey literature, contacting registries, authors, and organizations requesting unpublished data, browsing related websites, and hand searching key journals. The quality of included studies was evaluated by Joanna Briggs Institute Critical Appraisal Tools. Records published between April 2013 and May 2020 were added to the original systematic review. Results Overall, 58 resources including 45 papers, 10 SCI registry reports, 1 book, and 2 theses were retrieved. We found TSCI incidence data for eight new countries, which overall shapes our knowledge of TSCI incidence for 49 countries. The incidence of TSCI ranges from 3.3 to 195.4 cases per million (cpm) based on subnational studies and from 5.1 to 150.48 cpm based on national studies. Most of the studies were low quality, lacked consistent case selection due to unclear definition of TSCI and unclear ascertainment methods. Conclusions There is an increasing number of publications in the literature focusing on the epidemiologic data of TSCI. The absence of a standard form of reporting TSCI hinders the comparability of data across different data sources. Use of various definitions for TSCI may lead to heterogeneity in reports. Use of sensitivity analyses based on reasonable classification criteria can aid in offering a uniform set of case identification and ascertainment criteria for TSCI.
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Key Words
- AMR, American region
- ASCIR, Australian Spinal Cord Injury Register
- CPM, Cases Per Million
- CoCoPop, Condition, Context, and Population
- EMR, Eastern Mediterranean region
- EUR, European Region
- Epidemiology
- ICD, International Codes of Disease
- ISCoS, International Spinal Cord Society
- InSCI, The International Spinal Cord Injury
- Incidence
- JBI, Joanna Briggs Institute
- PHM, Prehospital mortality
- PICO, Population, Intervention, Comparator, and Outcome
- SEAR, South East Asia Region
- Spinal cord injury
- SwiSCI, Swiss Spinal Cord Injury
- TSCI, Traumatic Spinal Cord Injury
- TSI, Traumatic spinal injuries
- WPR, Western Pacific Region
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Bao XX, Zhao C, Bao SS, Rao JS, Yang ZY, Li XG. Recognition of necrotic regions in MRI images of chronic spinal cord injury based on superpixel. COMPUTER METHODS AND PROGRAMS IN BIOMEDICINE 2023; 228:107252. [PMID: 36434959 DOI: 10.1016/j.cmpb.2022.107252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 08/15/2022] [Accepted: 11/17/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND AND OBJECTIVE The cystic cavity and its surrounding dense glial scar formed in chronic spinal cord injury (SCI) hinder the regeneration of nerve axons. Accurate location of the necrotic regions formed by the scar and the cavity is conducive to eliminate the re-growth obstacles and promote SCI treatment. This work aims to realize the accurate and automatic location of necrotic regions in the chronic SCI magnetic resonance imaging (MRI). METHODS In this study, a method based on superpixel is proposed to identify the necrotic regions of spinal cord in chronic SCI MRI. Superpixels were obtained by a simple linear iterative clustering algorithm, and feature sets were constructed from intensity statistical features, gray level co-occurrence matrix features, Gabor texture features, local binary pattern features and superpixel areas. Subsequently, the recognition effects of support vector machine (SVM) and random forest (RF) classification model on necrotic regions were compared from accuracy (ACC), positive predictive value (PPV), sensitivity (SE), specificity (SP), Dice coefficient and algorithm running time. RESULTS The method is evaluated on T1- and T2-weighted MRI spinal cord images of 24 adult female Wistar rats. And an automatic recognition method for spinal cord necrosis regions was established based on the SVM classification model finally. The recognition results were 1.00±0.00 (ACC), 0.89±0.09 (PPV), 0.88±0.12 (SE), 1.00±0.00 (SP) and 0.88±0.07 (Dice), respectively. CONCLUSIONS The proposed method can accurately and noninvasively identify the necrotic regions in MRI, which is helpful for the pre-intervention assessment and post-intervention evaluation of chronic SCI research and treatments, and promoting the clinical transformation of chronic SCI research.
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Affiliation(s)
- Xing-Xing Bao
- Beijing Key Laboratory for Biomaterials and Neural Regeneration, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Can Zhao
- Institute of Rehabilitation Engineering, China Rehabilitation Science Institute, Beijing 100068, China.
| | - Shu-Sheng Bao
- Beijing Key Laboratory for Biomaterials and Neural Regeneration, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China
| | - Jia-Sheng Rao
- Beijing Key Laboratory for Biomaterials and Neural Regeneration, Beijing Advanced Innovation Center for Biomedical Engineering, School of Biological Science and Medical Engineering, Beihang University, Beijing 100083, China.
| | - Zhao-Yang Yang
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
| | - Xiao-Guang Li
- Department of Neurobiology, School of Basic Medical Sciences, Capital Medical University, Beijing 100069, China
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Golestani A, Shobeiri P, Sadeghi-Naini M, Jazayeri SB, Maroufi SF, Ghodsi Z, Dabbagh Ohadi MA, Mohammadi E, Rahimi-Movaghar V, Ghodsi SM. Epidemiology of Traumatic Spinal Cord Injury in Developing Countries from 2009 to 2020: a Systematic Review and Meta-analysis. Neuroepidemiology 2022; 56:219-239. [PMID: 35512643 DOI: 10.1159/000524867] [Citation(s) in RCA: 35] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Accepted: 04/17/2022] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Traumatic spinal cord injury (TSCI) is a catastrophic event with a considerable health and economic burden on individuals and countries. This study was performed to update an earlier systematic review and meta-analysis on epidemiological properties of TSCI in developing countries published in 2013. METHODS Various search methods including online searching in database of EMBASE and PubMed, and hand searching were performed (2012 to May 2020). The keywords 'Spinal cord injury', 'epidemiology', 'incidence' and 'prevalence' were used. Based on definition of developing countries by International Monetary Fund, studies related to developing countries included. Data selection was according to PRISMA guidelines. The quality of included studies was evaluated by Joanna Briggs Institute Critical Appraisal Tools. Results of meta-analysis were presented as pooled frequency, and forest, funnel and drapery plots. RESULTS we identified 47 studies from 23 developing countries. The pooled incidence of TSCI in developing countries was 22.55/million/year (95% CI: 13.52; 37.62/million/year). Males comprised 80.09% (95% CI: 78.29%; 81.83%) of TSCIs, and under 30 years patients were the most affected age group. Two leading etiologies of TSCIs were motor vehicle crashes (43.18% (95% CI: 37.80%; 48.63%)), and falls (34.24% (95% CI: 29.08%; 39.59%)), respectively. The difference among the frequency of complete injury (49.47% (95% CI: 43.11%; 55.84%)), and incomplete injury (50.53% (95% CI: 44.16%; 56.89%)) was insignificant. The difference among frequency of tetraplegia (46.25% (95% CI: 37.78%; 54.83%)) and paraplegia (53.75% (95% CI: 45.17%; 62.22%)) was not statistically significant. The most prevalent level of TSCI was cervical injury (43.42% (95% CI: 37.38%; 49.55%). CONCLUSION In developing countries, TSCIs are more common in young adults and males. Motor vehicle crashes and falls are the main etiologies. Understanding epidemiological characteristics of TSCIs could lead to implant appropriate cost-effective preventive strategies to decrease TSCIs incidence and burden.
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Affiliation(s)
- Ali Golestani
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Parnian Shobeiri
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohsen Sadeghi-Naini
- Department of Neurosurgery, Lorestan University of Medical Sciences, Khoram-abad, Iran
| | - Seyed Behnam Jazayeri
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Seyed Farzad Maroufi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Zahra Ghodsi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
| | - Mohammad Amin Dabbagh Ohadi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Interdisciplinary Neuroscience Research Program, Tehran University of Medical Sciences, Tehran, Iran
| | - Esmaeil Mohammadi
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Vafa Rahimi-Movaghar
- Sina Trauma and Surgery Research Center, Tehran University of Medical Sciences, Tehran, Iran
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
- Department of Neurosurgery, Shariati Hospital, Tehran University of Medical Sciences, Tehran, Iran
- Universal Scientific Education and Research Network (USERN), Tehran, Iran
- Institute of Biochemistry and Biophysics, University of Tehran, Tehran, Iran
- Spine Program, University of Toronto, Toronto, Ontario, Canada
| | - Seyed Mohammad Ghodsi
- Brain and Spinal Cord Injury Research Center, Neuroscience Institute, Tehran University of Medical Sciences, Tehran, Iran
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Kostovski E, Miloshevska Jakimovska V, Lidal IB, Biering-Sørensen F. Cross-sectional and prospective data-collection in North Macedonia-methodological considerations. Spinal Cord Ser Cases 2019; 5:58. [PMID: 31632716 PMCID: PMC6786405 DOI: 10.1038/s41394-019-0204-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 06/01/2019] [Indexed: 11/09/2022] Open
Abstract
Study design Cross-sectional and prospective cohort-study. Objectives To describe methodological issues, experienced challenges related to data collection in North Macedonia and to discuss possible improvements of epidemiological data collection in future studies. Setting Clinic for Traumatology, Orthopedics, Anesthesia, Reanimation, Intensive Care Unit and Emergency Center, Mother Teresa Skopje University Hospital, Skopje and community settings, North Macedonia. Method A description of methodological challenges experienced in collecting data from 78 persons with acute and chronic traumatic spinal cord injury (SCI) examined and interviewed in 2015-2017 using a semiquantitative questionnaire and standard assessments tools. Results This study identified three major challenges with data collection in this setting: (1) research logistics and procedures, such as recruitment, infrastructure, and compensation, (2) ethical issues and the initial lack of mutual trust and understanding between researchers and participants, and (3) scientific quality and interpretation, including representativeness. Conclusions Methodological issues influenced by settings, are important to consider when interpreting study results. Healthcare systems vary between (and sometimes in) countries, language and culture may introduce barriers to understanding, and epidemiological research also rely on infrastructure and surroundings. For this study, making time for and listening to the participants without being intruding was of special importance in building trust and a good relationship with the participants during recruiting participants and collecting data. We here provide suggestions regarding how to facilitate future epidemiological data collections in North Macedonia.
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Affiliation(s)
| | | | | | - Fin Biering-Sørensen
- Faculty of Medicine, University of Oslo, Oslo, Norway
- Clinic for Spinal Cord Injuries, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
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