Clinical ToxicologyPub Date : 2024-08-01Epub Date: 2024-08-02DOI: 10.1080/15563650.2024.2380773
Richard C Dart
{"title":"Can mind-altering prescription medicines be safe? Lessons from ketamine and esketamine.","authors":"Richard C Dart","doi":"10.1080/15563650.2024.2380773","DOIUrl":"10.1080/15563650.2024.2380773","url":null,"abstract":"<p><strong>Introduction: </strong>Recent decades have witnessed an extraordinary global crisis of drug misuse. Although opioid analgesics receive the most attention, numerous other drugs have increased rates of misuse.</p><p><strong>Ketamine and esketamine: </strong>Ketamine and esketamine offer a unique natural experiment to explore two medications that are similar pharmacologically but differ in their availability to users and in their regulation by government agencies.</p><p><strong>Misuse and abuse of ketamine and esketamine: </strong>Multisystem \"mosaic\" surveillance of many drugs using real-world data has emerged in recent years. Ketamine and esketamine have been monitored concurrently. Ketamine is much more widely available than esketamine and shows clear signs of increasing misuse and abuse. In contrast, esketamine is difficult to detect in postmarket surveillance even though availability is increasing.</p><p><strong>Discussion: </strong>Ketamine and esketamine offer insights regarding the safety of prescription medications with the potential for misuse. Since the pharmacology of ketamine and esketamine are similar, the regulatory apparatus may be the primary difference that limits misuse. Ketamine has few restrictions and can be prescribed or administered by many healthcare providers, and is available as an illicit drug. In contrast, the product labeling for esketamine has rigorous restrictions on its use. Many important issues remain to be addressed. We need a more rigorous evaluation of the natural experiment of ketamine and esketamine. How does this experience relate to the introduction of new psychedelics?</p><p><strong>Conclusions: </strong>Ketamine misuse use and misuse are increasing while esketamine use in increasing, but misuse is not increasing. It is reasonable to reevaluate the regulatory controls on ketamine to reduce its misuse and abuse.</p>","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":" ","pages":"477-482"},"PeriodicalIF":4.3,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141874305","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clinical ToxicologyPub Date : 2024-07-01Epub Date: 2024-07-03DOI: 10.1080/15563650.2024.2370324
Klara De Baerdemaeker, Eleanor Foxton, David M Wood, John R H Archer, Kerry Layne, Caitlin Wolfe, Paul I Dargan
{"title":"Intravenous lipid emulsion interference in coagulation testing: an <i>ex vivo</i> analysis.","authors":"Klara De Baerdemaeker, Eleanor Foxton, David M Wood, John R H Archer, Kerry Layne, Caitlin Wolfe, Paul I Dargan","doi":"10.1080/15563650.2024.2370324","DOIUrl":"10.1080/15563650.2024.2370324","url":null,"abstract":"<p><strong>Introduction: </strong>Intravenous lipid emulsion is used in the rescue treatment of certain poisonings. A complication is interference with laboratory analyses. The aim of this study was to determine the impact of intravenous lipid emulsion on routine laboratory analysis of coagulation parameters <i>ex vivo</i> and determine if any of the analytical techniques remain reliable.</p><p><strong>Methods: </strong>Samples were obtained from 19 healthy volunteers and divided in triplicate. One sample served as a control, and the other two were diluted to simulate the treatment of an average adult with Intralipid<sup>®</sup> 20 per cent Fresenius Kabi 100 mL (dilution-1) or 500 mL (dilution-2). Coagulation tests performed were prothrombin time, activated prothrombin time, D-dimer concentration and fibrinogen. Coagulation testing was performed by three techniques. Test-1 was performed on a Sysmex CN6000 analyzer. Test-2 was performed with a manual mechanical endpoint method using the semi-automated Stago KC4 Delta. Test-3 involved high-speed centrifugation before repeat testing on the Sysmex CN6000 analyzer.</p><p><strong>Results: </strong>For test-1, only nine (47 per cent) samples in dilution-1 could be analyzed for coagulation tests, and no coagulation tests could be analyzed for dilution-2 because of lipaemia. For test-2 and test-3, all samples could be analyzed, and all results of both testing methods fell within the limits of the laboratory reference range.</p><p><strong>Discussion: </strong>Difficulties in laboratory analysis of patients having received intravenous lipid emulsion are due to multiple factors. Most automated coagulation analyzers use optical measurements, which can be unreliable in the presence of a high intravenous lipid concentration. By altering the lipaemia in the testing solution using high-speed centrifugation or by using manual mechanical endpoint detection, we were able to obtain reliable results. These findings are limited by the use of an <i>ex vivo</i> method and healthy volunteers.</p><p><strong>Conclusions: </strong>This <i>ex vivo</i> model confirms that Intralipid<sup>®</sup> interferes with routine coagulation studies. It is important that clinicians are aware and inform their laboratories of its administration.</p>","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":" ","pages":"441-445"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141491148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Tralopyril poisoning due to respiratory exposure.","authors":"Guangcai Yu, Baotian Kan, Wei Li, Xiangdong Jian","doi":"10.1080/15563650.2024.2370319","DOIUrl":"10.1080/15563650.2024.2370319","url":null,"abstract":"<p><strong>Introduction: </strong>Tralopyril is a metabolite of the pesticide chlorfenapyr. Direct toxicity by tralopyril has not been described. We report two cases of tralopyril poisoning via inhalation.</p><p><strong>Case presentations: </strong>Two workers developed heat intolerance, diaphoresis, and weight loss after occupational inhalational exposure to tralopyril. <b><i>Patient 1:</i></b> The exposure was due to the absence of respiratory protection. Magnetic resonance imaging showed abnormal signals in the bilateral periventricular white matter, corpus callosum, basal ganglia, brainstem, and spinal cord. The patient's blood tralopyril concentrations on days 1, 3, 5, 8, and 11 post-admission were 1.09 mg/L, 1.04 mg/L, 1.01 mg/L, 0.71 mg/L, and 0.313 mg/L, respectively. Haemoperfusion (HA330), haemoperfusion (HA380), and haemodiafiltration were performed on days 1-3, 5-8, and 9-10, respectively. <b><i>Patient 2:</i></b> The patient's symptoms followed inappropriate use of respiratory protection. His blood tralopyril concentrations on days 1, 4, 5, and 6 were 0.592 mg/L, 0.482 mg/L, 0.370 mg/L, and 0.228 mg/L, respectively.</p><p><strong>Discussion: </strong>The patients presented with features typical of chlorfenapyr poisoning, which suggests that tralopyril is the main toxic metabolite of chlorfenapyr.</p><p><strong>Conclusion: </strong>Tralopyril can be absorbed by inhalation, leading to delayed clinical symptoms and organ damage, including toxic encephalopathy and spinal cord damage.</p>","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":" ","pages":"472-475"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141466673","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clinical ToxicologyPub Date : 2024-07-01Epub Date: 2024-07-22DOI: 10.1080/15563650.2024.2377886
Robert Hoffman
{"title":"Is it time to reconsider the medical use of ethanol in patients with alcohol use disorder?","authors":"Robert Hoffman","doi":"10.1080/15563650.2024.2377886","DOIUrl":"https://doi.org/10.1080/15563650.2024.2377886","url":null,"abstract":"","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":"62 7","pages":"409-411"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141733645","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clinical ToxicologyPub Date : 2024-07-01Epub Date: 2024-06-24DOI: 10.1080/15563650.2024.2363381
Darren Quelch, Arlene Copland, Jatinder Kaur, Nikhil Sarma, Carol Appleyard, Alan Nevill, Nyle Davies, Thomas Knight, Grace Williams, Gareth Roderique-Davies, Bev John, Sally Bradberry
{"title":"Oral ethanol prescribing for alcohol withdrawal syndrome: initial findings and future directions following implementation within a United Kingdom National Health Service setting.","authors":"Darren Quelch, Arlene Copland, Jatinder Kaur, Nikhil Sarma, Carol Appleyard, Alan Nevill, Nyle Davies, Thomas Knight, Grace Williams, Gareth Roderique-Davies, Bev John, Sally Bradberry","doi":"10.1080/15563650.2024.2363381","DOIUrl":"10.1080/15563650.2024.2363381","url":null,"abstract":"<p><strong>Introduction: </strong>Prescribing of ethanol may be an alternative to benzodiazepines for managing alcohol withdrawal syndrome. We present our experience of oral ethanol prescribing within an acute United Kingdom National Health Service setting.</p><p><strong>Methods: </strong>A retrospective review of patients presenting with alcohol withdrawal who were managed with oral ethanol or benzodiazepines was performed from data collected across two acute care settings. Ethanol prescribing inclusion: high risk of delirium tremens, <b>or</b> a history of harmful alcohol consumption (typically ≥30 units/day; in which 1 unit = 8 grams of alcohol; one standard United States drink = 14 grams of alcohol) <b>or</b> known to have a history of severe alcohol withdrawal, alcohol-related seizures or delirium tremens. Inverse propensity score weighting was used to partially account for variance between the two patient populations.</p><p><strong>Results: </strong>Fifty (82 per cent male; average age 50.9 years) and 93 (84 per cent male; average age 46.5 years) patients in receipt of benzodiazepines or ethanol, respectively, were included. The likelihood of hospital admission was significantly reduced when individuals were managed with ethanol (odds ratio 0.206 (95 per cent confidence interval; 0.066-0.641), Wald chi-square <i>P</i> = 0.006). In those not admitted, the treatment type had no significant impact on length of stay or the number of occasions a pharmacological agent was required. In those admitted, treatment had no significant effect on length of stay.</p><p><strong>Discussion: </strong>We offer preliminary evidence to support a role of oral ethanol in the management of patients with alcohol withdrawal. We have implemented a robust and translatable guideline. Despite limitations in the data set the impact of ethanol in reducing the likelihood of admission remained significant.</p><p><strong>Conclusions: </strong>In individuals at significant risk of severe alcohol withdrawal, prescribing ethanol as part of a comprehensive care plan, may reduce unplanned admissions. The preliminary findings presented here warrant further assessment through prospective studies.</p>","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":" ","pages":"432-440"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141445752","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seok Jeong Lee, Solam Lee, You Hyun Kim, Yong Sung Cha
{"title":"Risk of lung diseases in patients with previous carbon monoxide poisoning: a nationwide population-based cohort study in the Republic of Korea.","authors":"Seok Jeong Lee, Solam Lee, You Hyun Kim, Yong Sung Cha","doi":"10.1080/15563650.2024.2371020","DOIUrl":"10.1080/15563650.2024.2371020","url":null,"abstract":"<p><strong>Introduction: </strong>Carbon monoxide poisoning is associated with severe damage to various organs. In this study, we aimed to determine if previous carbon monoxide poisoning was associated with an increased risk of lung diseases.</p><p><strong>Methods: </strong>The study population was derived from the National Health Insurance Service database of Korea between 1 January 2002 and 31 December 2021. Adults with carbon monoxide poisoning, with at least one visit to medical facilities between 2002 and 2021, were included. For comparison, an equal number of matched controls with the same index date were selected from the database.</p><p><strong>Results: </strong>A total of 28,618 patients with carbon monoxide poisoning and 28,618 matched controls were included in this study. Approximately 42.8 per cent of the patient and control groups were female, with a mean age of 51.3 years. In patients with carbon monoxide poisoning, there was a significant increase in the risk of lung cancer (adjusted hazard ratio, 1.84; 95 per cent confidence interval, 1.42-2.39; <i>P</i> < 0.001), chronic obstructive pulmonary disease (adjusted hazard ratio, 1.60; 95 per cent confidence interval, 1.36-1.89; <i>P</i> < 0.001), pulmonary tuberculosis (adjusted hazard ratio, 1.46; 95 per cent confidence interval, 1.13-1.88; <i>P</i> = 0.003), and non-tuberculous mycobacterial infection (adjusted hazard ratio, 1.54; 95 per cent confidence interval, 1.01-2.36; <i>P</i> = 0.047).</p><p><strong>Discussion: </strong>In this retrospective cohort study, previous carbon monoxide poisoning was associated with an increased risk of lung cancer, chronic obstructive pulmonary disease, pulmonary tuberculosis, and non-tuberculous mycobacterial infection. Further studies are needed to confirm such an association in other populations and the risk of lung diseases due to the toxic effect of carbon monoxide from different sources.</p><p><strong>Conclusions: </strong>Previous carbon monoxide poisoning was associated with an increased risk of lung diseases, but the relative importance of the causes and sources of exposure was not known. The long-term management of survivors of acute carbon monoxide poisoning should include monitoring for lung cancer, chronic obstructive pulmonary disease, pulmonary tuberculosis, and non-tuberculous mycobacterial infection.</p>","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":" ","pages":"425-431"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141466672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clinical ToxicologyPub Date : 2024-07-01Epub Date: 2024-07-10DOI: 10.1080/15563650.2024.2373850
Ann M Arens, Hamdi Sheikh Said, Brian E Driver, Jon B Cole
{"title":"Physostigmine reversal of delirium from second generation antipsychotic exposure: a retrospective cohort study from a regional poison center.","authors":"Ann M Arens, Hamdi Sheikh Said, Brian E Driver, Jon B Cole","doi":"10.1080/15563650.2024.2373850","DOIUrl":"10.1080/15563650.2024.2373850","url":null,"abstract":"<p><strong>Introduction: </strong>Physostigmine is an effective antidote for antimuscarinic delirium. There is little evidence for its use to reverse delirium following second generation antipsychotic exposure. The purpose of this study is to describe the safety and effectiveness of physostigmine in reversing delirium from second generation antipsychotic exposure.</p><p><strong>Methods: </strong>This is a retrospective cohort study of all patients reported to a single regional poison center treated with physostigmine following a second generation antipsychotic exposure from January 1, 2000 to April 15, 2021. The poison center electronic medical record was queried to identify cases and for data abstraction. The primary outcome was the positive response rate to physostigmine, as determined by two trained abstractors. Secondary outcomes included physostigmine dosing, and adverse events.</p><p><strong>Results: </strong>Of 147 charts reviewed, 138 individual patients were included, and the response to physostigmine was reported in 128 patients. The most common second-generation antipsychotic exposure was quetiapine (97; 70.3 percent). A positive response to physostigmine was noted in 106/128 (82.8 percent) patients [95 percent confidence interval 68.9-83.6 percent]. Median number of physostigmine doses was 1 (interquartile range 1-3; range 1-9). The median total physostigmine dose received was 2 mg (interquartile range 2-6 mg; range 0.15-30 mg). The positive physostigmine response rate for patients with an antimuscarinic co-ingestion was not significantly different compared to patients with a different co-ingestion or no co-ingestion (25/34 versus 81/94; <i>P</i> = 0.09). Adverse events were reported in four (2.9 percent) patients, including one death.</p><p><strong>Discussion: </strong>A positive response to physostigmine to treat antimuscarinic delirium from second generation antipsychotic exposure was reported in 82.8 percent of patients, which is similar to previous physostigmine studies. Adverse events were infrequent, and included diaphoresis (one 0.7 percent), seizure (one; 0.7 percent), and bradycardia (one; 0.7 percent). One (0.7%) patient suffered a cardiac arrest 60 minutes after receiving physostigmine to treat antimuscarinic delirium following having received increasing clozapine doses over the previous month.</p><p><strong>Conclusions: </strong>In this study, physostigmine appears to be a safe and effective treatment for antimuscarinic delirium from second generation antipsychotic exposure. Further studies are needed to validate the safety and effectiveness of physostigmine for this indication.</p>","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":" ","pages":"463-467"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141562788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Clinical ToxicologyPub Date : 2024-07-01Epub Date: 2024-07-10DOI: 10.1080/15563650.2024.2367658
Grant Thomas Comstock, HoanVu Nguyen, Alvin Bronstein, Luke Yip
{"title":"Chlorfenapyr poisoning: a systematic review.","authors":"Grant Thomas Comstock, HoanVu Nguyen, Alvin Bronstein, Luke Yip","doi":"10.1080/15563650.2024.2367658","DOIUrl":"10.1080/15563650.2024.2367658","url":null,"abstract":"<p><strong>Introduction: </strong>Chlorfenapyr, a N-substituted halogenated pyrrole, is a broad-spectrum insecticide. The insecticidal activity of chlorfenapyr depends on its biotransformation by hepatic cytochrome P450 monooxygenases to tralopyril, which uncouples mitochondrial oxidative phosphorylation and disrupts adenosine triphosphate production. Neither the metabolism of chlorfenapyr nor the mechanism of tralopyril is completely elucidated. Acute human chlorfenapyr poisoning is not well characterized, and best practice in management following acute exposure is unclear. The purpose of this review is to characterize acute human chlorfenapyr poisoning by its clinical course, laboratory investigations, and imaging findings and propose a management plan for acute human chlorfenapyr exposure.</p><p><strong>Methods: </strong>We systematically searched PubMed, Web of Science, Google Scholar, and EMBASE from inception to April 2024 across all languages for human chlorfenapyr and tralopyril cases, with descriptions of exposure, clinical manifestations, and clinical course included. Only manuscripts and abstracts from scientific conferences with sufficient clinical data following acute human exposures were included. <i>In vitro</i> studies, animal studies, agricultural studies, environmental impact studies, and non-clinical human studies were excluded. We then reviewed citations of included studies for additional eligible publications. Non-English publications were translated using Google Translate or primarily translated by our authors. The study adhered to Preferred Reporting for Systematic Reviews and Meta-analyses (PRISMA) guidelines for systematic reviews.</p><p><strong>Results: </strong>We identified 3,376 publications of which 48 met study inclusion criteria, describing 75 unique cases of human poisoning from ingestion, inhalation, dermal exposure, and intra-abdominal injection of chlorfenapyr. No cases of tralopyril exposure were identified. The median time from exposure to symptom onset was six hours (interquartile range 1-48 hours). The most frequent initial or presenting signs/symptoms included diaphoresis, nausea and/or vomiting, and altered mental status. While hyperthermia (≥38 degrees centigrade) was less common at presentation, hyperthermia developed in 61 percent of all patients and was temporally associated with clinical deterioration and death. Most common laboratory abnormalities included elevated blood creatine kinase activity, hepatic aminotransferase activities, and lactate concentration. Imaging studies of the central nervous system often showed extensive symmetrical white matter abnormalities with swelling. Case fatality was 76 percent, and survivors commonly experienced sustained neurological sequelae. Management strategies were highly varied, and the effectiveness of specific medical interventions was unclear.</p><p><strong>Discussion: </strong>Acute human chlorfenapyr poisoning is characterized by a latent period as long as","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":" ","pages":"412-424"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141562787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mai M Abd ElKader, Palkis Ahmed Mohamed Ismail, Mohammed A Abd El Ati, Meray M Shokry Zaghary
{"title":"A clinical study and laboratory evaluation of the cardiac and hepatic toxic effects of paraphenylenediamine.","authors":"Mai M Abd ElKader, Palkis Ahmed Mohamed Ismail, Mohammed A Abd El Ati, Meray M Shokry Zaghary","doi":"10.1080/15563650.2024.2367664","DOIUrl":"10.1080/15563650.2024.2367664","url":null,"abstract":"<p><strong>Introduction: </strong>Paraphenylenediamine is the main component in many commercial hair dyes, and can produce severe local and systemic toxicity reactions after acute ingestion or dermal absorption. The aim of this study was to assess the factors contributing to morbidity and mortality in cases of acute paraphenylenediamine poisoning, with a focus on evaluating the resultant hepatic and cardiac toxicity.</p><p><strong>Methods: </strong>This observational study was conducted on patients with acute paraphenylenediamine poisoning presenting to Sohag University Hospitals, and included a retrospective part from February 2021 to January 2022 and a prospective part from February 2022 to July 2022. Clinical data were extracted and receiver operating characteristic curves created to identify prognostic markers.</p><p><strong>Results: </strong>Among 50 eligible patients 39 (78 percent) recovered, and 11 (22 percent) died or had permanent complications. Angioedema and anuria were the most frequent features in complicated cases. By receiver operating characteristic analysis, either an increase in aspartate aminotransferase activity greater than 644 IU/L or alanine aminotransferase activity greater than 798 IU/L, a time delay to presentation of greater than 4.5 hours, and a pH of less than 7.32 were associated with a significant increase in morbidity and mortality. While cardiac enzyme activities, and concentrations of blood urea nitrogen and creatinine increased in most cases, they were not associated with mortality.</p><p><strong>Discussion: </strong>Management of patients with paraphenylenediamine poisoning is mainly supportive, as there is no specific antidote. Respiratory failure and kidney failure are the most life threatening complications. Hepatoxicity and cardiotoxicity also occur. The ability to predict the events can help guide patient disposition and care.</p><p><strong>Conclusion: </strong>Elevated liver enzyme activities, increased time delay to admission, decreased pH, and the presence of angioedema and anuria can be used as predictors of morbidity and mortality in patients with acute paraphenylenediamine poisoning.</p>","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":" ","pages":"453-462"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141466670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Laboratory features in acute paediatric poisoning with liquid laundry detergent capsules: a seven-year retrospective study in Romania.","authors":"Gabriela Viorela Nitescu, Andreea Lescaie, Ioana Ilisei, Alexandru Ulmeanu, Luiza Baconi, Dorina Craciun, Carmen Daniela Chivu, Diana Monica Preda, Coriolan Ulmeanu","doi":"10.1080/15563650.2024.2370300","DOIUrl":"10.1080/15563650.2024.2370300","url":null,"abstract":"<p><strong>Introduction: </strong>The epidemiological and clinical characteristics of acute poisoning with liquid laundry detergent capsules have been comprehensively reported. However, studies of laboratory test results in these exposures are uncommon. This study analyzed the impact of the ingestion of liquid laundry detergent capsules on admission laboratory tests in paediatric patients.</p><p><strong>Methods: </strong>This retrospective study was conducted in the clinical toxicology unit of a paediatric poison centre between 2015 and 2021. Paediatric patients (less than 18 years of age) who ingested liquid laundry detergent capsules were included. The relationship between the European Association of Poisons Centers and Clinical Toxicologists/European Commission/International Programme on Chemical Safety Poisoning Severity Score and admission laboratory test results was assessed using Fisher's exact test or analysis of variance.</p><p><strong>Results: </strong>A total of 156 patients were included in the study. A considerable proportion of patients presented with leucocytosis, acidosis, hyperlactataemia or base deficit. The median values of white blood cell count (<i>P</i> = 0.042), pH (<i>P</i> = 0.022), and base excess (<i>P</i> = 0.013) were significantly different among the Poisoning Severity Score groups. Hyperlactataemia was strongly associated with the Poisoning Severity Score (<i>P</i> = 0.003).</p><p><strong>Discussion: </strong>Leucocytosis is a non-specific marker of severity following ingestion of liquid laundry detergent capsules. The incidence of metabolic acidosis and hyperlactataemia was higher in this study than in previous reports, but these metabolic features were not related to the severity of exposure. The exact mechanisms of toxicity are not yet known, but the high concentration of non-ionic and anionic surfactants, as well as propylene glycol and ethanol, in the capsule are likely contributing factors.</p><p><strong>Conclusions: </strong>Pediatric patients who ingest liquid laundry detergent capsules may develop leucocytosis, metabolic acidosis, hyperlactataemia, and a base deficit.</p>","PeriodicalId":10430,"journal":{"name":"Clinical Toxicology","volume":" ","pages":"446-452"},"PeriodicalIF":3.0,"publicationDate":"2024-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141533858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}