Pediatric Medical Countermeasures: Antidotes and Cytokines for Radiological and Nuclear Incidents and Terrorism.

The war in Ukraine raises concerns for potential hazards of radiological and nuclear incidents. Children are particularly vulnerable in these incidents and may need pharmaceutical countermeasures, including antidotes and cytokines. Searches found no published study comparing pediatric indications and dosing among standard references detailing pediatric medications for these incidents. This study addresses this gap by collecting, tabulating, and disseminating this information to healthcare professionals caring for children. Expert consensus chose the following references to compare their pediatric indications and dosing of medical countermeasures for radiation exposure and internal contamination with radioactive materials: Advanced Hazmat Life Support (AHLS) for Radiological Incidents and Terrorism, DailyMed, Internal Contamination Clinical Reference, Medical Aspects of Radiation Incidents, and Medical Management of Radiological Casualties, as well as Micromedex, POISINDEX, and Radiation Emergency Medical Management (REMM). This is the first study comparing pediatric indications and dosing for medical countermeasures among commonly used references for radiological and nuclear incidents.

Knowledge, Attitude and Awareness of Oman Emergency Physicians and Residents Regarding Radiation Emergencies.

OBJECTIVE: Radiological emergency preparedness and response are increasingly acknowledged as vital components of both emergency readiness and public health. Previous studies have shown that medical providers feel unprepared to respond to radiation incidents. The existing level of knowledge, attitudes, and awareness held by emergency medicine residents and physicians in Oman, remain unexplored. This study aims to evaluate the knowledge, attitude, and awareness level of emergency residents and physicians in Oman regarding the management of radiation emergencies. METHODS: An electronic survey was distributed to 44 emergency residents and 57 emergency physicians. RESULTS: The response rate was 62.7% (N = 69/110). Notably, 62% reported no prior engagement in radiation emergency training. The majority of participants had neither employed nor received training in operating radiation detection devices. A significant gap in knowledge emerged, with the median self-reported knowledge score of 50/100. The majority of participants (59%) expressed a need for educational programs and materials. CONCLUSION: Our findings underscore the imperative for enhanced training in radiological incident preparedness for emergency medicine residents and physicians in Oman. The study reveals a clear necessity to bridge the existing gaps in knowledge and attitudes to bolster the readiness of health-care professionals to respond effectively to radiation emergencies.

Lead Exposure Survey Tool (LEST): A methodological approach to highlight the invisible lead poisoning.

Lead is the most common heavy metal found in the Earth's crust. Lead has been widely dispersed and incorporated in the natural world since prehistoric times. In the majority of wealthy countries, the amount of lead entering the atmosphere has been significantly reduced. Acute lead exposure becomes relatively low, but chronic lead exposure remains a substantial public health hazard. Disadvantaged people, are developing and industrializing countries in the Middle East and North Africa (MENA). Between 1981 and 2018, a comprehensive literature search was undertaken in the PubMed and Scopus databases. All studies were evaluated equally based on predetermined inclusion and exclusion criteria. The Delphi method was used to identify numerous resources of lead pollutants. The Mixed Method Appraisal Tool (MMAT) was used to evaluate the quality of identified papers for inclusion in the systematic review synthesis. The studies and sources of lead toxicology were further evaluated using a scale of evidence to establish the degree of evidence based on SIGN & GRADE standards. There were 14 genres and 82 subgenres identified. Through a comprehensive analysis, our cohort developed an exposure survey tool that takes into account the local sociocultural aspects of MENA countries, which will serve as a resource forresearchers, medical toxicologists, and public health professionals in the MENA region to enhance early detection of potential subjects, conduct further studies and implement exposure prevention strategies.•There is no single tool available to detect the invisible lead poison. Lead poisoning is a serious public health problem that can have devastating consequences.•The tool, called the Lead Exposure Survey Tool (LEST), uses a combination of but not limited to data sources, including blood lead levels, environmental lead levels, and demographic information, to identify subjects who are at risk of lead poisoning. LEST is a powerful tool that can help to improve early detection and prevention of lead poisoning.•The development of LEST is a major breakthrough in the fight against lead poisoning. This tool has the potential to save lives and improve the health of high risk subjects around the world.

Radiation Injuries: Acute Radiation Syndrome in Children.

The conflict in Ukraine has raised the specter of radiological and nuclear incidents, including fighting at the Zaporizhzhia nuclear plant, the largest nuclear powerplant in Europe; concerns that a radiological dispersion device ("dirty bomb") may be used; and threats to deploy tactical nuclear weapons. Children are more susceptible than adults to immediate and delayed radiation health effects. This article reviews the diagnosis and treatment of acute radiation syndrome. Although definitive treatment of radiation injuries should involve consultation with specialists, nonspecialists should learn to recognize the distinctive signs of radiation injury and make an initial assessment of severity of exposure. [Pediatr Ann. 2023;52(6):e231-e237.].

Melitracen and flupentixol (deanxit) use disorder in Lebanon.

Introduction: Deanxit is a combination of melitracen and flupentixol, not approved as an antidepressant for sale and use in several countries but still widely available and commonly used among the Lebanese population. The study aimed to assess Deanxit use disorder, assess the source of the medication, and the consumers' awareness of the therapeutic and side effects of Deanxit, among the Lebanese population. Methods: This is a cross-sectional study that included all patients taking Deanxit and visited the Emergency Department between October 2019 and October 2020. All patients who agreed to participate in the research through written consent forms were contacted by telephone and a questionnaire was filled out. Results: A total of 125 patients taking Deanxit were included in the study. According to the DSM-V criteria, 36% (n = 45) had a Deanxit use disorder. Most of the participants were females (n = 99, 79.2%), married (n = 90, 72%), and between the ages of 40-65 years (n = 71, 56.8%). Most patients (n = 41, 91%) had Deanxit prescribed by a physician for anxiety (n = 28, 62%), and obtained it using a prescription (n = 41, 91%). Almost half of all patients (n = 60, 48%) did not have sufficient knowledge of the reason it was prescribed, 54.4% (n = 68) were not sure they are taking the medication appropriately, and 19.2% (n = 23) were satisfied by the overall explanation of the physicians concerning Deanxit use. Conclusion: Deanxit use disorder is underrecognized among Lebanese patients. Most of our patients were prescribed Deanxit by their physicians but reported inadequate knowledge of its side effects and risk of abuse.

A Case Report of a Lebanon Viper (Montivipera bornmuelleri) Envenomation in a Child.

INTRODUCTION: Snake envenomation is a serious public health concern. In the Middle East little is known about snakebite envenomation, which raises several challenges for emergency physicians caring for these patients. CASE REPORT: We report the case of a five-year-old boy bitten by a rare snake, Montivipera bornmuelleri, who presented to an emergency department in Lebanon. We also discuss the proper management of snake envenomation. CONCLUSION: This case is unique as snakebites in Lebanon are poorly studied, and little is known about the epidemiology and clinical manifestations of local snakebites.

Case Report of Tetrodotoxin Poisoning from Lagocephalus sceleratus in Lebanon.

The Indo-Pacific pufferfish Lagocephalus sceleratus is a tetrodotoxin-containing species believed to have entered the Mediterranean Sea through the Suez Canal. Tetrodotoxin (TTX) is primarily found in the liver, intestine, and ovaries of L. sceleratus. We report a case of a patient with TTX poisoning from L. sceleratus consumption in Lebanon. History of ingestion, clinical presentation, and exam findings were obtained during phone-based consultation with the patient and intensive care physician. A 46-year-old male presented to a hospital in Lebanon with perioral and extremity numbness as well as dizziness 1 h after ingestion of an L. sceleratus fish. He had caught and prepared the fish himself and had eaten a skinless piece of flesh. Over the following 6 h he also developed ataxia and generalized body numbness. His treatment included systemic hydrocortisone, antihistamine, activated charcoal, and fluids. He was admitted to the intensive care unit, where he developed self-limited, stable sinus bradycardia. He was discharged home on hospital day 5 with residual lightheadedness that improved over several days. This is one of the first reported cases of tetrodotoxin poisoning due to L. sceleratus in Lebanon. Public awareness regarding the toxicity of this species after any ingestion is essential to prevent toxicity and death.

Two Cases of Severe Amanita Muscaria Poisoning Including a Fatality.

Ingestion of Amanita muscaria mushrooms results in transient central nervous system excitation and depression mediated by its components, ibotenic acid and muscimol. The mushroom is distributed worldwide and ingestions occur with some frequency. Although these ingestions have traditionally been considered benign, serious complications can occur. We present 2 cases of serious toxicity, including a fatality. The first case was a 44-y-old man who presented to the emergency department (ED) after cardiopulmonary arrest approximately 10 h after ingesting 4 to 5 dried A muscaria mushroom caps, which he used for their mind-altering effects. Despite successful resuscitation, he remained unresponsive and hypotensive and died 9 days later. The second case was a 75-y-old man who presented to the ED after accidentally consuming one large A muscaria mushroom cap he foraged in Eastern Turkey. The patient initially presented to the ED with hallucinations followed by lethargy, and he was intubated for airway protection. The patient's condition gradually improved, and he made a full recovery. A muscaria ingestion should not be considered benign as serious outcomes do occur. An understanding of how the main neuroactive chemicals, ibotenic acid and muscimol, affect the brain can help anticipate outcomes. Several high-risk features that portend a more serious course are identified.

Benzodiazepine use disorder: A cross-sectional study at a tertiary care center in Lebanon.

Benzodiazepines are medications used for the treatment of multiple conditions including anxiety disorders, insomnia, agitation, and seizures. They are the most prescribed psychiatric medications and the third most misused drugs among adults and adolescents in the US. This study aims to assess the patient utilization patterns and benzodiazepine use disorder among Lebanese patients. A cross-sectional study was performed on Lebanese patients presenting to the Emergency Department of the American University of Beirut Medical Center (AUBMC), between November 11th, 2019, and May 30th, 2020. Institutional review board approved the study, and an informed consent was obtained from patients. A total of 244 patients were included in the final analysis. A total of 154 (63.1%) patients were found to have benzodiazepine use disorder as per the DSM-V criteria with the majority (64%) being females and young adults aged 18 to 40 years. The most common medication was alprazolam, and anxiety was the most common reason for benzodiazepine use. The majority (88%) of patients obtained their medications using a physician's prescription. More than half of users were not satisfied with the physician's instructions and lacked knowledge about side effects and abuse potential. The high rate of benzodiazepine misuse among our young adults highlights an important public health concern that requires interventions and policy implementation.

Ivermectin associated adverse events in the treatment and prevention of COVID-19 reported to the FACT pharmacovigilance project.

BACKGROUND: In August 2021, the Centers for Disease Control and Prevention (CDC) released a health alert following the rapid increase in ivermectin prescriptions and reports of severe illness associated with use of products containing ivermectin for the prevention or treatment of COVID-19 infections. The United States Food and Drug Administration (FDA) and the CDC have explicitly discouraged the use of ivermectin in the prevention or treatment of COVID-19 outside of clinical trials. The study aims to describe the adverse events (AEs) related to ivermectin use for the prevention or treatment of COVID-19. METHODS: This is a prospective case series of adverse events related to therapeutics used in the prevention or treatment of COVID-19 submitted to the FDA ACMT COVID-19 ToxIC (FACT) Pharmacovigilance Project sub-registry between October 2020 and December 2021. This is an ongoing toxico-surveillance system at 15 major academic medical centers in 12 states. Data collected included sociodemographics, exposure related information including dose, frequency, route, duration, and reason for taking ivermectin as well as a clinical description of the adverse event and the outcome. RESULTS: A total of 40 patients who developed AEs following ivermectin use were reported to FACT over 15 months. Self-medication with veterinary formulations were reported in 18/40 patients Thirty-three patients presented to emergency departments and nineteen patients were admitted to the hospital. Patients reported using ivermectin for prevention (24/40), treatment of symptoms (19/40), and for treatment of documented COVID-19 (8/40). Neurological toxicity was the most frequent finding. Fifteen patients had minor symptoms while 25 developed severe toxicity. CONCLUSIONS: Ivermectin use for the attempted treatment of COVID-19 has potential adverse health effects primarily related to neurological function. This is especially true when patients are self-treating with this medication and when they are using formulations intended for non-human use.

Predictors of severe outcome following opioid intoxication in children.

INTRODUCTION: While the opioid crisis has claimed the lives of nearly 500,000 in the U.S. over the past two decades, and pediatric cases of opioid intoxications are increasing, only sparse data exist regarding risk factors for severe outcome in children following an opioid intoxication. We explore predictors of severe outcome (i.e., intensive care unit [ICU] admission or in-hospital death) in children who presented to the Emergency Department with an opioid intoxication. METHODS: In this prospective cohort study we collected data on all children (0-18 years) who presented with an opioid intoxication to the 50 medical centers in the US and two international centers affiliated with the Toxicology Investigators Consortium (ToxIC) of the American College of Medical Toxicology, from August 2017 through June 2020, and who received a bedside consultation by a medical toxicologist. We collected relevant demographic, clinical, management, disposition, and outcome data, and we conducted a multivariable logistic regression analysis to explore predictors of severe outcome. The primary outcome was a composite severe outcome endpoint, defined as ICU admission or in-hospital death. Covariates included sociodemographic, exposure and clinical characteristics. RESULTS: Of the 165 (87 females, 52.7%) children with an opioid intoxication, 89 (53.9%) were admitted to ICU or died during hospitalization, and 76 did not meet these criteria. Seventy-four (44.8%) children were exposed to opioids prescribed to family members. Fentanyl exposure (adjusted OR [aOR] = 3.6, 95% CI: 1.0-11.6; p = 0.03) and age ≥10 years (aOR = 2.5, 95% CI: 1.2-4.8; p = 0.01) were independent predictors of severe outcome. CONCLUSIONS: Children with an opioid toxicity that have been exposed to fentanyl and those aged ≥10 years had 3.6 and 2.5 higher odds of ICU admission or death, respectively, than those without these characteristics. Prevention efforts should target these risk factors to mitigate poor outcomes in children with an opioid intoxication.

Consensus Development of a Core Content for a Standardized Medical Toxicology Curriculum for Medical Students.

BACKGROUND: Currently, no standardized core content in medical toxicology exists for medical students. The goals of this study were to (1) assess the current state and needs of medical toxicology clerkships and (2) develop a consensus-derived list of core topics that should be covered during a medical toxicology clerkship. METHODS: We assembled a task force established by the American College of Medical Toxicology (ACMT) of nine experts in medical toxicology or emergency medicine. We developed a needs assessment survey that was sent to all medical student clerkship directors in medical toxicology. Based on their responses, we used a modified Delphi process to develop a consensus of core topics that should be covered during a medical student clerkship. RESULTS: Nineteen out of 42 (45%) clerkship directors completed the survey; 18 met inclusion criteria. The majority of clerkships were 4 weeks in duration with an average of 15 students/year. The three most common teaching methods used were bedside teaching (n = 17/18), classroom teaching (n = 17/18), and journal club (n = 14/18). All the clerkship directors (n = 18/18) reported they would use a standardized curriculum as well as educational content developed by ACMT. There was overwhelming consensus on the core topics which included, but were not limited to, pharmacology/toxicology; drugs; drugs of abuse; natural products; pharmacological basis of antidote use; toxicologic syndromes; vital sign abnormalities; initial management; supportive and other care; withdrawal syndrome management; industrial, household, and environmental toxins; differential diagnosis by clinical findings; and ABCs-resuscitation. CONCLUSION: The ACMT task force developed a medical toxicology clerkship core content. The task force also identified a need for shared resources among clerkships.

Radiation Injury Treatment Network Medical and Nursing Workforce Radiation: Knowledge and Attitude Assessment.

OBJECTIVES: The Radiation Injury Treatment Network (RITN) is prepared to respond to a national disaster resulting in mass casualties with marrow toxic injuries. How effective existing RITN workforce education and training is, or whether health-care providers (HCPs) at these centers possess the knowledge and skills to care for patients following a radiation emergency is unclear. HCP knowledge regarding the medical effects and medical management of radiation-exposed patients, along with clinical competence and willingness to care for patients following a radiation emergency was assessed. METHODS: An online survey was conducted to assess level of knowledge regarding the medical effects of radiation, medical/nursing management of patients, self-perception of clinical competence, and willingness to respond to radiation emergencies and nuclear events. RESULTS: Attendance at previous radiation emergency management courses and overall knowledge scores were low for all respondents. The majority indicated they were willing to respond to a radiation event, but few believed they were clinically competent to do so. CONCLUSIONS: Despite willingness to respond, HCPs at RITN centers may not possess adequate knowledge of medical management of radiation patients, and appropriate response actions during a radiation emergency. RITN should increase the awareness of the importance of radiation education and training.

Lead screening in children presenting to three hospitals in Lebanon.

BACKGROUND: Lead damages most body organs and its effects are most profound in children. In a study in Beirut in 2003, before banning the leaded gasoline, 79% of the participants showed blood lead levels (BLLs) higher than 5 µg/dL. The prevalence of lead exposure in Lebanon after the ban on leaded gasoline has not been studied. This study assessed the BLL in Lebanese children aged 1-6 years. METHODS: This cross-sectional study was conducted in three hospitals in Beirut. The children's BLLs were tested, and their caregiver completed a questionnaire to identify subgroups at risk of exposure. Participants were provided with a WHO brochure highlighting the risks of lead. RESULTS: Ninety children with a mean age of 3.5±1.5 years were enrolled in the study and had a mean BLL of 1.1±0.7 µg/dL, with all values being below 5.0 µg/dL, showing a marked decrease in BLL compared with the mean BLL before the ban on leaded gasoline in 2002. Having a father or a mother with a college degree (p=0.01 and p=0.035, respectively) and having a monthly household income greater than $1000 (p=0.021) were associated with significantly lower BLL. Having more rooms at home and residing close to construction sites were associated with a significantly lower BLL (p=0.001 and p=0.026, respectively). Residing in a house aged >40 years and receiving traditional remedies were associated with a significantly higher BLL (p=0.009 and p<0.0001, respectively). CONCLUSION: BLLs have declined among Lebanese children and this could be attributed to multiple factors including the ban of leaded gasoline. It would be beneficial to conduct a larger study with a nationally representative sample to better characterise the BLL.

A cluster of tetrodotoxin poisoning in Oman.

INTRODUCTION: Tetrodotoxin (TTX) is a potent sodium channel blocker, with significant neurotoxicity, found in marine animals like pufferfish and blue-ringed octopus. The severity of toxicity depends on the amount of toxin ingested and the outcome depends on the time-lapse to appropriate medical care. CASES REPORT: We report five patients who presented with tetrodotoxin poisoning after consuming fried internal organs of local pufferfish from the coast of Oman. The patients' clinical manifestations were consistent with the expected TTX toxidrome of perioral and generalized paresthesia, weakness of upper and lower extremities, gastrointestinal manifestations, dyspnea, dysarthria, ascending paralysis, hypotension, bradycardia and coma. The severity varied among the patients who recovered completely except one patient who developed a subarachnoid hemorrhage without underlying aneurysms on computed tomography-angiogram. This complication was potentially related to TTX poisoning and has not been previously reported. In addition to standard supportive management, patients with severe illness should potentially receive the intravenous acetylcholinesterase inhibitor neostigmine, and intermittent dialysis. Urine specimens were sent to CDC in Atlanta, where they were analyzed using online solid phase extraction (SPE) with LC-MS/MS and confirmed the diagnosis in all five cases. DISCUSSION: In general, the patients' clinical manifestations were consistent with the expected TTX toxidrome except patient 3 who developed a subarachnoid hemorrhage early during his clinical course. Two patients received neostigmine and underwent dialysis with complete recovery.

Telephonic Medical Toxicology Service in a Low-Resource Setting: Setup, Challenges, and Opportunities.

Poisoning and envenomation are a global health problem for which the mortality burden is shouldered heavily by middle- and low-income countries that often lack poison prevention programs and medical toxicology expertise. Although telehealth or teleconsult services have been used to bridge the expertise gap between countries for multiple specialties, the use of medical toxicology teleconsult services across borders has been limited. We aim to describe the use of a United States-based medical toxicology teleconsult service to support patient care at a hospital in a middle-income country that lacks this expertise. This report outlines the logistics involved in setting up such a service, including the challenges and opportunities that emerged from establishing medical toxicology teleconsult service in a low-resource setting.

Toxicological exposures among the pediatric patients at a tertiary care center in Lebanon: the case for establishing a national poison center.

BACKGROUND: Despite its preventable nature, poisoning remains one of the leading causes of morbidity and mortality in the pediatric population. In Lebanon, this population is poorly studied and there is no poison center to which healthcare providers and the public can refer in case of toxicological exposure, leading to unnecessary Emergency Department (ED) visits. This study describes the pediatric toxicological exposures seen at the largest tertiary care center in Lebanon. It also evaluates the appropriateness of ED visits among confirmed or suspected toxicological exposures in children, in order to assess the role of a national poison center in reducing unnecessary ED visits. METHODS: This is a secondary analysis of a database for a telephonic medical toxicology service at the American University of Beirut Medical Center, the largest tertiary care center in Lebanon. Data relating to all pediatric patients aged 0-19 years of age were entered into the database by the medical toxicology team. The cases were independently reviewed by 2 medical toxicologists for the adequacy of referral to the ED and performance of invasive procedures. RESULTS: Two hundred and nine exposures were recorded between 15 April 2015 and 31 December 2019, of which 53.1% were females. Children aged less than 5 years were involved in 67.0% of cases while adolescents aged 13-19 years were involved in 21.1%. The most commonly involved substances were analgesics (14.8%) and cardiovascular drugs (10.0%). The majority had no (59.3%) or minor (26.3%) effects and were treated and discharged home (67.5%). More than a third of ED visits were deemed unnecessary by the toxicologists (Kappa = 0.705), and when including only unintentional cases, around 45% of the ED visits were deemed unnecessary (Kappa = 0.677). CONCLUSION: Our data show that 37% of all pediatric poisoning ED visits and 45% of ED visits due to unintentional pediatric poisonings were unnecessary. Additionally, more often than not lavage suctions were done unnecessarily. Future research investigating the possibility of preventing unnecessary visits by establishing a national poison center is needed.

Human Zinc Phosphide Exposure in Lebanon: A Case Report and Review of the Literature.

INTRODUCTION: Toxicity from rodenticides such as metal phosphides is common worldwide, particularly in developing countries where consumers have access to unlabeled and uncontrolled insecticides and pesticides. CASE REPORT: We present the first documentation of a metal phosphide exposure in Lebanon. A middle-aged woman presented to the emergency department following the ingestion of an unknown rodenticide. Spectroscopy analysis of the sample brought by the patient was used and helped identify zinc phosphide. The patient developed mild gastrointestinal symptoms and was admitted to the intensive care unit for observation without further complications. REVIEW: We subsequently conducted a literature review to understand the diagnosis, pathophysiology, clinical presentation, and management of metal phosphide toxicity. Multiple searches were conducted on MEDLINE and PubMed, and articles related to the topics under discussion were included in the review. Metal phosphide is associated with significant morbidity and mortality involving all body systems. Patients presenting with metal phosphide intoxication need extensive workup including blood testing, electrocardiogram, and chest radiography. To date there is no antidote for metal phosphide toxicity, and management is mostly supportive. Many treatment modalities have been investigated to improve outcomes in patients presenting with metal phosphide toxicities. CONCLUSION: Emergency physicians and toxicologists in developing countries need to consider zinc and aluminum phosphides on their differential when dealing with unlabeled rodenticide ingestion. Treatment is mostly supportive with close monitoring for sick patients. Further research is needed to better understand metal phosphide toxicity and to develop better treatment options.