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Advanced Neurology Epilepsy after traumatic brain injuries

1. Introduction 1.1. Epidemiology

Traumatic brain injury (TBI) is a significant global TBI remains a critical public health concern worldwide,
health concern, contributing to long-term neurological with its incidence and prevalence continuing to rise due to
impairments and high rates of morbidity and mortality. It increasing urbanization, vehicle accidents, falls, and sports-
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encompasses a complex spectrum of primary and secondary related injuries. According to recent epidemiological
injuries that disrupt the structural and functional integrity studies, TBI contributes significantly to disability-adjusted
of the brain. Among its numerous consequences, the life years (DALYs) and is a leading cause of morbidity and
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development of neurological disorders such as cognitive mortality across all age groups. The burden is especially
deficits, epilepsy, and neurodegenerative conditions has pronounced in low- and middle-income countries
garnered extensive attention in recent scientific research. where access to timely and advanced medical care is
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These disorders arise due to intricate pathophysiological limited. Global estimates suggest that approximately
mechanisms, including neuroinflammation, oxidative 69 million individuals experience TBI annually, with
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stress, and excitotoxicity, which exacerbate neuronal varying degrees of severity ranging from mild to severe.
damage over time. Despite advances in acute management Among these, a substantial proportion develop secondary
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strategies, effective therapeutic interventions targeting neurological disorders, including epilepsy, post-traumatic
TBI-associated neurological disorders remain limited. stress disorder, depression, cognitive impairment, and
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This gap underscores the necessity for a comprehensive neurodegenerative diseases such as Alzheimer’s disease.
understanding of the underlying mechanisms, diagnostic Older adults and children are identified as high-risk
challenges, and emerging treatment paradigms. Recent groups, with falls being the predominant cause in these
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studies have highlighted the potential of precision medicine, populations. In contrast, road traffic accidents and
neuroprotective agents, and regenerative therapies in violence contribute significantly to TBI cases among
younger age groups and males. The epidemiological
mitigating the long-term effects of TBI. Furthermore, the trends of TBI also exhibit regional variability. In high-
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integration of neuroimaging techniques and biomarker income countries, a decline in severe TBI-related deaths
studies has enhanced the early detection and prognosis of due to improved road safety measures and trauma care
TBI-induced neurological conditions. 4
systems has been reported. However, low- and middle-
TBI can arise from various events that impact the income countries face an alarming rise in TBI-related
brain due to external mechanical forces. Some of the complications due to limited healthcare infrastructure
primary causes include falls, unintentional trauma, and an increase in motorization. Recent advancements
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vehicle accidents, assaults, and injuries from unknown or in neuroimaging, biomarker research, and registries have
other unspecified sources. These events lead to different improved the accuracy of TBI diagnosis and monitoring,
types of brain injuries based on the nature and direction shedding light on the long-term neurological sequelae
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of the impact. On the other hand, direct brain injury of such injuries. However, the absence of standardized
occurs when an external force directly impacts the skull, reporting systems and disparities in healthcare accessibility
leading to localized brain damage. The rapid acceleration hinder comprehensive epidemiological evaluations. 16
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or deceleration motion of the head causes the brain to Addressing the growing burden of TBI-related
move within the skull, thereby resulting in accelerating- neurological disorders requires a multipronged approach.
decelerating injuries. This motion can create diffuse This includes implementing preventive measures such
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damage, including tearing of neuronal tissues (Figure 1). as helmet use, fall prevention programs, and improved
Blast brain injury is often linked to explosions or high- road safety regulations. In addition, enhancing access
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energy impacts. This type of injury involves a combination to rehabilitation services and neuroprotective therapies
of pressure waves, mechanical force, and secondary trauma can significantly reduce the long-term impact of TBI
caused by shrapnel or debris as the etiological drivers. 8 and associated neurological disorders. Understanding
This review aims to provide a systematic analysis these epidemiological patterns is essential for developing
of the current scenario surrounding neurological targeted interventions to mitigate the global burden of
disorders in TBI patients. It explores recent advances TBI. 18
in the field, identifies gaps in knowledge, and highlights 2. Advances in the pathogenesis of epilepsy
future perspectives for improving patient outcomes. By
synthesizing existing literature, this paper serves as a following TBI
valuable resource for researchers and clinicians striving to Epilepsy is a common and debilitating complication of TBI,
address the multifaceted challenges posed by TBI. 9 often referred to as post-traumatic epilepsy (PTE). Recent

Volume 4 Issue 4 (2025) 2 doi: 10.36922/an.8356