Publications by authors named "Myron Rolle"

Article Synopsis
  • The study aimed to analyze the global neurosurgery training workforce, focusing on the types of training programs, trainee support, diversity of experiences, and accreditation processes.
  • Data were collected from 187 countries and 25 territories, revealing an estimated 1,261 training programs and over 10,500 trainees, with significant variations in density based on country income levels and WHO regions.
  • High-income countries had a much higher density of trainees (0.48 per 100,000 people) compared to lower-income countries, which faced challenges like limited subspecialty training and resources.
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Article Synopsis
  • The study aimed to assess the global distribution and growth of consultant neurosurgeons, especially in low- and middle-income countries, to understand the impact of efforts to expand access to neurosurgery worldwide.
  • A comprehensive electronic survey was conducted across 192 countries and 25 territories, revealing an estimated 72,967 neurosurgeons, with a global density of 0.93 per 100,000 people, and significant variation by income level.
  • Findings indicated that neurosurgeon density increases with national income level, highlighting the shortage in low-income areas, particularly in WHO African and Southeast Asia regions, while the Western Pacific region showed the highest density of neurosurgeons.
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To elucidate the pathogenesis of vein of Galen malformations (VOGMs), the most common and most severe of congenital brain arteriovenous malformations, we performed an integrated analysis of 310 VOGM proband-family exomes and 336,326 human cerebrovasculature single-cell transcriptomes. We found the Ras suppressor p120 RasGAP (RASA1) harbored a genome-wide significant burden of loss-of-function de novo variants (2042.5-fold, p = 4.

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Background: The neurosurgical workforce in the Caribbean and surrounding countries is largely unknown due to the diversity in cultural, linguistic, political, financial disparities, and colonial history between the countries. About 45 neurosurgeons serve 16 million people in the Caribbean Community and Common Market, a trade alliance including most Caribbean nations. We aimed to understand the current scope of neurosurgical workforce in this region while highlighting any system challenges and potential solutions for upscaling the workforce.

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Introduction: Traumatic brain injury (TBI) is a significant cause of morbidity and mortality in the Caribbean as well as globally. Within the Caribbean, the prevalence of TBI is approximately 706 per 100,000 persons - one of the highest rates per capita in the world.

Research Question: We aim to assess the economic productivity lost due to moderate to severe TBI in the Caribbean.

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Introduction: Global access to electronic medical records (EMRs) continues to grow, however many countries including those within the Caribbean Community (CARICOM) lack access to this system. Minimal research investigating EMR use in this region exists.

Research Question: How does limited EMR access impact neurosurgical care within the CARICOM?

Materials And Methods: The Cochrane Library, EMBASE, Scopus, PubMed/MEDLINE databases, and grey literature were queried for studies addressing this issue within the CARICOM and low- and/or middle-income countries (LMICs).

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Background: Pediatric cranial trauma is the leading cause of acquired death and disability in children worldwide. However, trauma resources vary widely among countries. We sought to compare management and timely access to care between a level 1 U.

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Article Synopsis
  • The study focused on understanding vein of Galen malformations (VOGMs), which are severe congenital brain abnormalities, by analyzing the genetic data from 310 affected individuals and their families, as well as a large database of human cerebrovascular cells.
  • Researchers identified significant genetic mutations, particularly in the gene p120 RasGAP and the Ephrin receptor-B4, which play roles in limiting Ras activation and are key to VOGM development.
  • Experiments on mice with specific genetic alterations revealed that abnormal activation of signaling pathways in endothelial cells leads to developmental issues in blood vessel formation, providing insights into both the biology of VOGMs and potential clinical applications for treatment.
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Introduction: Opportunities for in-country neurosurgical training are severely limited in LMICs, particularly due to rigorous educational requirements and prohibitive upfront costs.

Research Question: This study aims to evaluate financial barriers aspiring neurosurgeons face in accessing and completing neurosurgical training, specifically in LMICs, in order to determine the barriers to equitable access to training.

Material And Methods: In order to assess the financial costs of accessing and completing neurosurgery residency, an electronic survey was administered to those with the most recent experience with the process: aspiring neurosurgeons, neurosurgical trainees, and recent neurosurgery graduates.

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Introduction: Neurological disorders are one of the leading causes of death and disability adjusted life years (DALYs). Efforts have been made to increase the neurosurgical workforce in an attempt to address the global disease burden. Despite these efforts, there continues to be a shortage of neurosurgeons in both high-income countries (HICs) and low-and middle-income countries (LMICs).

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Objective: Pediatric postoperative neurosurgical care is an essential component of a child's treatment pathway. It is important to better understand how neurosurgeons in lower middle-income countries (LMICs) have been able to address socioeconomic and systemic factors to improve their patients' access to quality pediatric postoperative neurosurgical care. We aim to characterize the pediatric neurosurgical postoperative system in place in Zambia and to discuss how these efforts have been implemented to improve outcomes and address socioeconomic barriers to accessing health care.

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 Traumatic brain injury (TBI) has a disproportionately greater impact in low- and middle-income countries (LMICs). One strategy to reduce the burden of disease in LMICs is through the implementation of a trauma registry that standardizes the assessment of each patient's management of care.  This study aims to ascertain the interest of Latin America and the Caribbean (LAC) nations in establishing a shared neurotrauma registry in the regional block, based on an existing framework for collaboration.

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Objective: To assess the clinical, racial, and social characteristics of victims of Gunshot wounds (GSWs) to the head and assess for associations between these factors and outcomes.

Summary Background Data: Previous literature has not focused on the association of race and socioeconomic factors with these specific injuries.

Methods: We identified patients with GSWs to the head who presented to 2 urban academic medical centers between 1998 and 2020, and extracted patient-level demographic data, information about the clinical and surgical course, and outcomes at discharge and follow-up.

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Objective: Approximately 69 million people suffer from traumatic brain injury (TBI) annually. Patients with isolated epidural hematomas (EDH) with access to timely surgical intervention often sustain favorable outcomes. Efforts to ensure safe, timely, and affordable access to EDH treatment may offer tremendous benefits.

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Background: Neurotrauma is a leading cause of morbidity and mortality around the world. Assessment of injury prevention and prehospital care for neurotrauma patients is necessary to improve care systems.

Methods: A 29-question electronic survey was developed based on the Enhancing the Quality and Transparency Of health Research (EQUATOR) checklist to assess neurotrauma policies and laws related to safety precautions.

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Five million neurosurgical cases go untreated each year. This is in part due to the lack of neurosurgical care providers. The World Federation of Neurosurgical Societies has spearheaded efforts to monitor the number of neurosurgical providers around the globe since 2016.

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Objective: Achieving rigid spinal fixation can be challenging in patients with cancer-related instability, as factors such as osteopenia, radiation, and immunosuppression adversely affect bone quality. Augmenting pedicle screws with cement is a strategy to overcome construct failure. This study aimed to assess the safety and efficacy of cement augmentation with fenestrated pedicle screws in patients undergoing posterior, open thoracolumbar surgery for spinal metastases.

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Background: Access to timely neurosurgical care in particular remains limited worldwide, and is associated with increased morbidity and mortality, a decrease in overall life expectancy, and catastrophic economic costs. To date, access to neurosurgical care has not been completely studied and reported in the Caribbean neurosurgical literature. In this study, we aim to understand the geographic distribution of hospital facilities with neurosurgical capacity among the CARICOM member states to determine timely access to neurosurgical care.

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