Case Reports Study on Methanol Poisoning in King Abdul Aziz Specialist Hospital, Taif, Saudi Arabia

Methanol Induced Optic Neuropathy: Molecular Mysteries, Public Health Perspective, Clinical Insights and Treatment Strategies

Methanol-induced optic neuropathy (MION) represents a critical public health issue, particularly prevalent in lower socioeconomic populations and regions with restricted alcohol access. MION, characterized by irreversible visual impairment, arises from the toxic metabolization of methanol into formaldehyde and formic acid, leading to mitochondrial oxidative phosphorylation inhibition, oxidative stress, and subsequent neurotoxicity. The pathogenesis involves axonal and glial cell degeneration within the optic nerve and potential retinal damage. Despite advancements in therapeutic interventions, a significant proportion of affected individuals endure persistent visual sequelae. The study comprehensively investigates the pathophysiology of MION, encompassing the absorption and metabolism of methanol, subsequent systemic effects, and ocular impacts. Histopathological changes, including alterations in retinal layers and proteins, Müller cell dysfunction, and visual symptoms, are meticulously examined to provide insights into the disease mechanism. Furthermore, preventive measures and public health perspectives are discussed to highlight the importance of awareness and intervention strategies. Therapeutic approaches, such as decontamination procedures, ethanol and fomepizole administration, hemodialysis, intravenous fluids, electrolyte balance management, nutritional therapy, corticosteroid therapy, and erythropoietin (EPO) treatment, are evaluated for their efficacy in managing MION. This comprehensive review underscores the need for increased awareness, improved diagnostic strategies, and more effective treatments to mitigate the impact of MION on global health.

Substance misuse disorder in Saudi Arabia: A comprehensive examination of current demographic patterns, trends, and intervention requirements

Introduction

This review examines substance misuse disorder (SMD) in Saudi Arabia, drawing insights from 43 prior studies. It explores the prevalence and patterns of SMD across diverse demographics.

Methodology

Our analysis integrated data from various studies involving adolescents, university students, psychiatric patients, and the general population as well as postmortem cases. It identifies key risk factors and challenges in managing SMD, underscoring the importance of comprehensive data collection for evidence-based policymaking.

Results

SMD in Saudi Arabia were categorized into two groups: common traditionally abused drugs (such as Captagon, khat, heroin, ethanol, and cannabis) and substances that have emerged in recent years (e.g., methamphetamine "Shabu", pregabalin, and benzodiazepines). Trends in SMD include early substance initiation and increased amphetamine and polysubstance use.

Conclusion and recommendations

Drug-related challenges persist in Saudi Arabia; however, because of limited data from recent epidemiological studies on drug disorders, the full extent is unknown. Saudi Arabia is unique because it as an Islamic country with strict regulations against drug trafficking and a religious prohibition on drugs and alcohol, which contributes to distinct trends in substance misuse disorder (SMD). Although some aspects mirror global patterns, others exhibit regional characteristics specific to the country. Despite data variability, actionable recommendations have emerged for SMD prevention and treatment. During the COVID-19 pandemic, a high number of reports was evident; however, SMD publications often reiterate old findings and overlook emerging psychoactive substances (EPS), such as 'Shabu", pregabalin, and benzodiazepines. Further studies are needed, including educational initiatives, national surveys, stricter drug regulations, and an early warning system for traditional SMD and EPS.

Exploring the Landscape of Adult Acute Poisoning in Saudi Arabia: A Comprehensive Narrative Review

This narrative review meticulously examines the intricate landscape of poisoning incidents within Saudi Arabia, delineating the prevalence and characteristics across three main categories: pharmaceutical, illicit, and chemical substances. Pharmaceutical agents, particularly analgesics and antipsychotics, are identified as leading causes of acute adult poisoning, highlighting the paramount role of their widespread accessibility and the potential risks associated with over-the-counter availability. The review underscores the alarming prevalence of over-the-counter analgesics, such as paracetamol and nonsteroidal anti-inflammatory drugs (NSAIDs), as the most frequent culprits in poisoning cases, with a significant correlation observed between analgesic poisoning and gender, notably affecting the female population. Additionally, the study delves into the burgeoning issue of illicit drug use, with opioids and amphetamines emerging as substantial contributors to the poisoning landscape, reflecting a broader global trend of increasing substance misuse and its associated health risks. Chemical poisoning, encompassing a range of substances from household cleaners to industrial chemicals, presents another critical area of concern, with specific emphasis on the dangers posed by antiseptics, detergents, and organophosphates. The review identifies a pressing need for targeted public health interventions and policy reforms aimed at mitigating the risks associated with these diverse types of poisoning. By offering a comprehensive overview of the poisoning epidemiology in Saudi Arabia, the study contributes valuable insights into the multifaceted nature of this public health challenge, advocating for enhanced regulatory measures, public awareness campaigns, and improved access to mental health services to address the underlying factors contributing to poisoning incidents.

Methanol intoxication in the central region of Saudi Arabia: Five case studies

Outbreaks of methanol poisoning have been described in the medical literature worldwide. However, the few outbreaks that have occurred in Saudi Arabia remain undocumented. This is especially noteworthy in light of the fact that Saudi Arabia is among the countries that explicitly prohibit the usage of alcoholic beverages and recreational drugs. Herein, we describe five cases of methanol poisoning in Saudi Arabia. The first three comprise patients admitted to the emergency room (ER) with signs of methanol toxicity, such as heart palpitations, vomiting, and blurred vision; otherwise, those patients were considered medically free. The remaining two cases were examined postmortem. A headspace gas chromatography-flame ionization detector was used to test blood, vitreous humor, and urine samples for methanol. Specific lethal concentrations of methanol were defined based on published case studies as 23-740 mg/dL in blood and 12-396 mg/dL in vitreous humor. In postmortem cases of our present study, samples exhibited lethal concentrations: 118 and 257 mg/dL in blood, 116.3 and 283 mg/dL in vitreous humor. In ER cases, methanol concentrations in urine samples were lower, at 7.5, 9.1, and 20.9 mg/dL; however, toxic symptoms were still observed. These case studies indicate that it is necessary to raise community awareness about the risk of methanol poisoning in order to minimize future poisoning epidemics.