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Ghannoum M, Gosselin S, Hoffman RS, Lavergne V, Mégarbane B, Hassanian-Moghaddam H, Rif M, Kallab S, Bird S, Wood DM, Roberts DM, Anseeuw K, Berling I, Bouchard J, Bunchman TE, Calello DP, Chin PK, Doi K, Galvao T, Goldfarb DS, Hoegberg LCG, Kebede S, Kielstein JT, Lewington A, Li Y, Macedo EM, MacLaren R, Mowry JB, Nolin TD, Ostermann M, Peng A, Roy JP, Shepherd G, Vijayan A, Walsh SJ, Wong A, Yates C. Extracorporeal treatment for ethylene glycol poisoning: systematic review and recommendations from the EXTRIP workgroup. Crit Care 2023; 27:56. [PMID: 36765419 PMCID: PMC9921105 DOI: 10.1186/s13054-022-04227-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2022] [Accepted: 10/18/2022] [Indexed: 02/12/2023] Open
Abstract
Ethylene glycol (EG) is metabolized into glycolate and oxalate and may cause metabolic acidemia, neurotoxicity, acute kidney injury (AKI), and death. Historically, treatment of EG toxicity included supportive care, correction of acid-base disturbances and antidotes (ethanol or fomepizole), and extracorporeal treatments (ECTRs), such as hemodialysis. With the wider availability of fomepizole, the indications for ECTRs in EG poisoning are debated. We conducted systematic reviews of the literature following published EXTRIP methods to determine the utility of ECTRs in the management of EG toxicity. The quality of the evidence and the strength of recommendations, either strong ("we recommend") or weak/conditional ("we suggest"), were graded according to the GRADE approach. A total of 226 articles met inclusion criteria. EG was assessed as dialyzable by intermittent hemodialysis (level of evidence = B) as was glycolate (Level of evidence = C). Clinical data were available for analysis on 446 patients, in whom overall mortality was 18.7%. In the subgroup of patients with a glycolate concentration ≤ 12 mmol/L (or anion gap ≤ 28 mmol/L), mortality was 3.6%; in this subgroup, outcomes in patients receiving ECTR were not better than in those who did not receive ECTR. The EXTRIP workgroup made the following recommendations for the use of ECTR in addition to supportive care over supportive care alone in the management of EG poisoning (very low quality of evidence for all recommendations): i) Suggest ECTR if fomepizole is used and EG concentration > 50 mmol/L OR osmol gap > 50; or ii) Recommend ECTR if ethanol is used and EG concentration > 50 mmol/L OR osmol gap > 50; or iii) Recommend ECTR if glycolate concentration is > 12 mmol/L or anion gap > 27 mmol/L; or iv) Suggest ECTR if glycolate concentration 8-12 mmol/L or anion gap 23-27 mmol/L; or v) Recommend ECTR if there are severe clinical features (coma, seizures, or AKI). In most settings, the workgroup recommends using intermittent hemodialysis over other ECTRs. If intermittent hemodialysis is not available, CKRT is recommended over other types of ECTR. Cessation of ECTR is recommended once the anion gap is < 18 mmol/L or suggested if EG concentration is < 4 mmol/L. The dosage of antidotes (fomepizole or ethanol) needs to be adjusted during ECTR.
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Affiliation(s)
- Marc Ghannoum
- grid.14848.310000 0001 2292 3357Research Center, CIUSSS du Nord-de-l’île-de-Montréal, University of Montreal, Montreal, QC Canada ,grid.137628.90000 0004 1936 8753Nephrology Division, NYU Langone Health, NYU Grossman School of Medicine, New York, NY USA ,grid.5477.10000000120346234Department of Nephrology and Hypertension, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
| | - Sophie Gosselin
- grid.420748.d0000 0000 8994 4657Centre Intégré de Santé et de Services Sociaux (CISSS) de la Montérégie-Centre Emergency Department, Hôpital Charles-Lemoyne, Greenfield Park, QC Canada ,grid.86715.3d0000 0000 9064 6198Faculté de Médecine et Sciences de la Santé, Université de Sherbrooke, Sherbrooke, Canada ,Centre Antipoison du Québec, Quebec, QC Canada
| | - Robert S. Hoffman
- grid.137628.90000 0004 1936 8753Division of Medical Toxicology, Ronald O. Perelman Department of Emergency Medicine, NYU Grossman School of Medicine, New York, NY USA
| | - Valery Lavergne
- grid.14848.310000 0001 2292 3357Research Center, CIUSSS du Nord-de-l’île-de-Montréal, University of Montreal, Montreal, QC Canada
| | - Bruno Mégarbane
- grid.411296.90000 0000 9725 279XDepartment of Medical and Toxicological Critical Care, Lariboisière Hospital, INSERM UMRS-1144, Paris Cité University, Paris, France
| | - Hossein Hassanian-Moghaddam
- grid.411600.2Social Determinants of Health Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran ,grid.411600.2Department of Clinical Toxicology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Siba Kallab
- grid.411323.60000 0001 2324 5973Department of Internal Medicine-Division of Nephrology, Lebanese American University - School of Medicine, Byblos, Lebanon
| | - Steven Bird
- Department of Emergency Medicine, U Mass Memorial Health, U Mass Chan Medical School, Worcester, MA USA
| | - David M. Wood
- grid.13097.3c0000 0001 2322 6764Clinical Toxicology, Guy’s and St Thomas’ NHS Foundation Trust and King’s Health Partners, and Clinical Toxicology, Faculty of Life Sciences and Medicine, King’s College London, London, UK
| | - Darren M. Roberts
- grid.430417.50000 0004 0640 6474New South Wales Poisons Information Centre, Sydney Children’s Hospitals Network, Westmead, NSW Australia ,grid.413249.90000 0004 0385 0051Drug Health Services, Royal Prince Alfred Hospital, Sydney, NSW Australia
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Beaulieu J, Roberts DM, Gosselin S, Hoffman RS, Lavergne V, Hovda KE, Megarbane B, Lung D, Thanacoody R, Ghannoum M. Treating ethylene glycol poisoning with alcohol dehydrogenase inhibition, but without extracorporeal treatments: a systematic review. Clin Toxicol (Phila) 2022; 60:784-797. [PMID: 35311442 DOI: 10.1080/15563650.2022.2049810] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
CONTEXT Ethylene glycol is metabolized to toxic metabolites that cause acute kidney injury, metabolic acidemia, and death. The treatment of patients with ethylene glycol poisoning includes competitively inhibiting alcohol dehydrogenase with ethanol or fomepizole to prevent the formation of toxic metabolites, and extracorporeal treatments such as hemodialysis to remove ethylene glycol and its metabolites. In the absence of significant metabolic acidemia or kidney injury, it is hypothesized that extracorporeal treatments may be obviated without adverse outcomes to the patient if alcohol dehydrogenase inhibitors are used. OBJECTIVES The objectives of this study are to: (1) identify indicators predicting ADH inhibitor failure in patients with ethylene glycol poisoning treated with either ethanol or fomepizole for whom extracorporeal treatment was not performed (aside from rescue therapy, see below) (prognostic study), and (2) validate if the anion gap, shown in a previous study to be the best surrogate for the glycolate concentration, is associated with acute kidney injury and mortality (anion gap study). METHODS We conducted a systematic review to identify all reported patients with ethylene glycol poisoning treated without extracorporeal treatments but with either fomepizole (fomepizole monotherapy) or ethanol (ethanol monotherapy). Analyses were performed using both one case per patient and all cases (if multiple events were reported for a single patient). Data were compiled regarding poisoning, biochemistry, and outcomes. Treatment failure was defined as mortality, worsening of acid-base status, extracorporeal treatments used as rescue, or a worsening of kidney or neurological function after alcohol dehydrogenase inhibition was initiated. Also, we performed an analysis of previously described anion gap thresholds to determine if they were associated with outcomes such as acute kidney injury and mortality. RESULTS Of 115 publications identified, 96 contained case-level data. A total of 180 cases were identified with ethanol monotherapy, and 231 with fomepizole monotherapy. Therapy failure was noted mostly when marked acidemia and/or acute kidney injury were present prior to therapy, although there were cases of failed ethanol monotherapy with minimal acidemia (suggesting that ethanol dosing and/or monitoring may not have been optimal). Ethylene glycol dose and ethylene glycol concentration were predictive of monotherapy failure for ethanol, but not for fomepizole. In the anion gap study (207 cases), death and progression of acute kidney injury were almost nonexistent when the anion gap was less than 24 mmol/L and mostly observed when the anion gap was greater than 28 mmol/L. CONCLUSION This review suggests that in patients with minimal metabolic acidemia (anion gap <28 mmol/L), fomepizole monotherapy without extracorporeal treatments is safe and effective regardless of the ethylene glycol concentration. Treatment failures were observed with ethanol monotherapy which may relate to transient subtherapeutic ethanol concentrations or very high ethylene glycol concentrations. The results are limited by the retrospective nature of the case reports and series reviewed in this study and require prospective validation.
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Affiliation(s)
- Jessie Beaulieu
- Research Center, CIUSSS du Nord-de-l'île-de-Montréal, University of Montreal, Montreal, QC, Canada
| | - Darren M Roberts
- Department of Clinical Pharmacology and Toxicology, St Vincent's Hospital, Sydney, NSW, Australia.,St Vincent's Clinical School, University of New South Wales, Sydney, NSW, Australia.,Drug Health Clinical Services, Royal Prince Alfred Hospital, Sydney, NSW, Australia
| | - Sophie Gosselin
- Centre Intégré de Santé et de Services Sociaux (CISSS) de la Montérégie-Centre Emergency Department, Hôpital Charles-Lemoyne, Greenfield Park, QC, Canada.,McGill University Emergency Medicine Department Montreal, Montreal, QC, Canada.,Centre Antipoison du Québec, Quebec City, QC, Canada
| | - Robert S Hoffman
- Division of Medical Toxicology, Ronald O. Perelman Department of Emergency Medicine, NYU Grossman School of Medicine, NY, USA
| | - Valery Lavergne
- Research Center, CIUSSS du Nord-de-l'île-de-Montréal, University of Montreal, Montreal, QC, Canada
| | - Knut Erik Hovda
- The Norwegian CBRNE Centre of Medicine, Department of Acute Medicine, Oslo University Hospital, Oslo, Norway
| | - Bruno Megarbane
- Department of Medical and Toxicological Critical Care, Lariboisiere Hospital, University of Paris, Paris, France
| | | | - Ruben Thanacoody
- NPIS (Newcastle Unit), Regional Drug and Therapeutics Centre, Newcastle-upon-Tyne, UK
| | - Marc Ghannoum
- Research Center, CIUSSS du Nord-de-l'île-de-Montréal, University of Montreal, Montreal, QC, Canada.,Division of Nephrology, NYU Langone Health and NYU Grossman School of Medicine, NY, USA
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Kim Y. Plotting of Ethylene Glycol Blood Concentrations Using Linear Regression before and during Hemodialysis in a Case of Intoxication and Pharmacokinetic Review. Case Rep Nephrol 2015; 2015:359101. [PMID: 26346463 PMCID: PMC4543587 DOI: 10.1155/2015/359101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Accepted: 07/22/2015] [Indexed: 11/24/2022] Open
Abstract
Introduction. As blood concentration measurement of commonly abused alcohol is readily available, the equation was proposed in previous publication to predict the change of their concentration. The change of ethylene glycol (EG) concentrations was studied in a case of intoxication to estimate required time for hemodialysis (HD) using linear regression. Case Report. A 55-year-old female with past medical history of seizure disorder, bipolar disorder, and chronic pain was admitted due to severe agitation. The patient was noted to have metabolic acidosis with elevated anion gap and acute kidney injury, which prompted blood concentration measurement of commonly abused alcohol. Her initial EG concentration was 26.45 mmol/L. Fomepizole therapy was initiated, soon followed by HD to enhance clearance. Discussion. Plotting of natural logarithm of EG concentrations over time showed that EG elimination follows first-order kinetics and predicts the change of its concentration well. Pharmacokinetic review revealed minimal elimination of EG by alcohol dehydrogenase (ADH) which could be related to genetic predisposition for ADH activity and home medications as well as presence of propylene glycol. Pharmacokinetics of EG is relatively well studied with published parameters. Consideration and application of pharmacokinetics could assist in management of EG intoxication including HD planning.
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Affiliation(s)
- Youngho Kim
- Division of Nephrology, Department of Internal Medicine, University of New Mexico, 901 University Boulevard SE, Suite 150, MSC 04-2785, Albuquerque, NM 87106, USA
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Beatty L, Green R, Magee K, Zed P. A systematic review of ethanol and fomepizole use in toxic alcohol ingestions. Emerg Med Int 2013; 2013:638057. [PMID: 23431453 PMCID: PMC3574646 DOI: 10.1155/2013/638057] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2012] [Accepted: 12/25/2012] [Indexed: 11/26/2022] Open
Abstract
Objectives. The optimal antidote for the treatment of ethylene glycol or methanol intoxication is not known. The objective of this systematic review is to describe all available data on the use of ethanol and fomepizole for methanol and ethylene glycol intoxication. Data Source. A systematic search of MEDLINE and EMBASE was conducted. Study Selection. Published studies involving the use of ethanol or fomepizole, or both, in adults who presented within 72 hours of toxic alcohol ingestion were included. Our search yielded a total of 145 studies for our analysis. There were no randomized controlled trials, and no head-to-head trials. Data Extraction. Variables were evaluated for all publications by one independent author using a standardized data collection form. Data Synthesis. 897 patients with toxic alcohol ingestion were identified. 720 (80.3%) were treated with ethanol (505 Me, 215 EG), 146 (16.3%) with fomepizole (81 Me, 65 EG), and 33 (3.7%) with both antidotes (18 Me, 15 EG). Mortality in patients treated with ethanol was 21.8% for Me and 18.1% for EG. In those administered fomepizole, mortality was 17.1% for Me and 4.1% for EG. Adverse events were uncommon. Conclusion. The data supporting the use of one antidote is inconclusive. Further investigation is warranted.
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Affiliation(s)
- Lorri Beatty
- Department of Emergency Medicine, Dalhousie University, Room 377, Bethune Building, 1276 South Park Street, Halifax, NS, Canada B3H 2Y9
| | - Robert Green
- Department of Emergency Medicine, Dalhousie University, Room 377, Bethune Building, 1276 South Park Street, Halifax, NS, Canada B3H 2Y9
- Division of Critical Care Medicine, Department of Anesthesia, Dalhousie University, Room 377, Bethune Building, 1276 South Park Street, Halifax, NS, Canada B3H 2Y9
| | - Kirk Magee
- Department of Emergency Medicine, Dalhousie University, Room 377, Bethune Building, 1276 South Park Street, Halifax, NS, Canada B3H 2Y9
| | - Peter Zed
- Faculty of Pharmaceutical Sciences, University of British Columbia, Vancouver, BC, Canada V6T 1Z3
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Levine M, Curry SC, Ruha AM, Pizon AF, Boyer E, Burns J, Bikin D, Gerkin RD. Ethylene glycol elimination kinetics and outcomes in patients managed without hemodialysis. Ann Emerg Med 2012; 59:527-31. [PMID: 22226175 DOI: 10.1016/j.annemergmed.2011.12.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2011] [Revised: 11/20/2011] [Accepted: 12/02/2011] [Indexed: 10/14/2022]
Abstract
STUDY OBJECTIVE Ethylene glycol remains an important toxic cause of metabolic acidosis and acute renal failure. Traditionally, inhibition of alcohol dehydrogenase along with hemodialysis has been used for treatment. Because of reported long elimination half-life of ethylene glycol during alcohol dehydrogenase inhibition, hemodialysis has been used in patients who are otherwise doing well to clear ethylene glycol. We study ethylene glycol elimination kinetics in patients treated with fomepizole, but without hemodialysis. METHODS This was a retrospective, multicenter cohort study of patients older than 15 years who were treated at one of 3 medical centers during an 8-year period. Inclusion criteria were peak serum ethylene glycol concentration greater than 20 mg/dL, lack of renal failure on admission, treatment with fomepizole but without hemodialysis, and availability of serial serum ethylene glycol concentrations, allowing calculation of elimination half-life. The primary outcome variable was ethylene glycol elimination half-life; mortality and onset of renal failure were secondary outcome variables. RESULTS During the study period, 85 patients were treated for ethylene glycol toxicity, of whom 40 met inclusion criteria. The mean serum ethylene glycol elimination half-life was 14.2 hours (SD=3.7 hours; 95% confidence interval 13.1 to 15.3 hours). One patient presented with metabolic acidosis on admission and developed mild transient renal insufficiency but did not require hemodialysis. No patient died. CONCLUSION The mean elimination half-life of ethylene glycol in this population was shorter than previously reported without hemodialysis, and this select group of patients did well without enhanced elimination by hemodialysis.
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Affiliation(s)
- Michael Levine
- Department of Medical Toxicology, Banner Good Samaritan Medical Center, Phoenix, AZ, USA.
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Meng QH, Adeli K, Zello GA, Porter WH, Krahn J. Elevated lactate in ethylene glycol poisoning: True or false? Clin Chim Acta 2010; 411:601-4. [DOI: 10.1016/j.cca.2010.01.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2009] [Revised: 01/01/2010] [Accepted: 01/04/2010] [Indexed: 10/19/2022]
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Green R. The management of severe toxic alcohol ingestions at a tertiary care center after the introduction of fomepizole. Am J Emerg Med 2007; 25:799-803. [PMID: 17870485 DOI: 10.1016/j.ajem.2007.01.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2006] [Revised: 01/15/2007] [Accepted: 01/15/2007] [Indexed: 10/22/2022] Open
Abstract
INTRODUCTION Ethylene glycol and methanol ingestions are relatively uncommon but potentially lethal poisonings. Recent trials have demonstrated that fomepizole effectively blocks alcohol dehydrogenase (ADH) in toxic alcohol overdoses, and may eliminate the need for emergent hemodialysis and intensive care unit admission. However, controversy remains in the role of fomepizole in clinical practice. The purpose of this study was to describe the presentation, management and clinical course of toxic alcohol ingestions at a tertiary care referral center after the introduction of fomepizole to hospital formulary. METHODS Data was collected on all patents treated for toxic alcohol ingestions for a 1-year period in a tertiary care referral center. Patients who received fomepizole or ethanol infusions, or who underwent hemodialysis were identified by ED, pharmacy, hemodialysis and ICU databases. The patients' medical records were reviewed, and data was recorded on a predetermined computerized data collection form. RESULTS Overall, twenty (20) toxic ingestions (14 methanol; 6 ethylene glycol) were identified over the one year period. Fomepizole was used for ADH blockade in 12/20 cases; ETOH infusions in 15/20 cases (combined ETOH and fomepizole use in 7/20). The majority of toxic alcohol exposures were admitted to an intensive care unit (19/20) and received emergent hemodialysis (19/20). All patients were discharged from hospital alive. CONCLUSIONS Patients with methanol and ethylene glycol ingestions who presented to our centers had significant toxicity and received both HD and ICU admission. Further research is required to determined if the method of ADH blockade affects the need for hemodialysis or ICU admission in toxic alcohol ingestions.
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Affiliation(s)
- Robert Green
- Department of Emergency Medicine, Division of Critical Care Medicine, Queen Elizabeth II Health Sciences Centre, Dalhousie University, Halifax, NS B3H 2Y9.
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Krenová M, Pelclová D. Does unintentional ingestion of ethylene glycol represent a serious risk? Hum Exp Toxicol 2007; 26:59-67. [PMID: 17334180 DOI: 10.1177/0960327107073831] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The objective of this study was to evaluate data retrospectively on accidental ingestion of ethylene glycol (EG), based on calls to the Czech Toxicological Information Centre and from toxicological laboratories, in the years 2000-2004. All patients who ingested a known amount of EG and/or subjects with measured serum EG levels were included. A variety of clinical and laboratory parameters was collected. The medical records of 86 subjects, who had ingested from one to three swallows of EG, were analysed. The following findings emerged-metabolic acidosis (41%), vomiting (36%), nephrotoxicity (10%), and CNS depression (9%). In 15 children, the time interval between ingestion and hospitalisation was 1 hour or less. Ethanol was given to 12 children (four as first aid), and none developed hypoglycaemia. Of the 71 adults, 93% were treated with ethanol (19 as first aid). No side effects were documented. Seventeen patients received haemodialysis (HD). Two patients recovered without HD; their EG levels were higher than in the HD-treated patients. Unintentional EG ingestion usually involves ingestion of a small amount of EG, and was connected with mild signs of intoxication. Early therapy with ethanol alone appears sufficient in such cases, and represents no risk of adverse effects.
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Affiliation(s)
- M Krenová
- Toxicological Information Centre, Department of Occupational Medicine, Charles University, General University Hospital, Prague, Czech Republic.
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Kuskonmaz B, Duzova A, Kanbur NO, Gurakan F, Gumruk F, Gurgey A. Hemophagocytic syndrome and acute liver failure associated with ethylene glycol ingestion: a case report. Pediatr Hematol Oncol 2006; 23:427-32. [PMID: 16728363 DOI: 10.1080/08880010600683392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The authors describe a case of accidental ethylene glycol poisoning in an 18-month-old boy who developed hemophagocytic syndrome (HPS). Ethylene glycol is a common substance in various antifreeze preparations. Acute ethylene glycol intoxication is a medical emergency that, if not diagnosed correctly and treated aggressively, will lead to serious neurological, cardiopulmonary, and renal dysfunction, and may result in death. The taking of a detailed history, physical examination, and laboratory testing are essential for diagnosis. To the best of the authors' knowledge this is the first case in the literature of a subject who developed HPS after ethylene glycol intoxication.
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Affiliation(s)
- Baris Kuskonmaz
- Hacettepe University Faculty of Medicine, Department of Pediatrics, Division of Pediatric Hematology, Sihhiye Ankara, Turkey.
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Caravati EM, Erdman AR, Christianson G, Manoguerra AS, Booze LL, Woolf AD, Olson KR, Chyka PA, Scharman EJ, Wax PM, Keyes DC, Troutman WG. Ethylene glycol exposure: an evidence-based consensus guideline for out-of-hospital management. Clin Toxicol (Phila) 2005; 43:327-45. [PMID: 16235508 DOI: 10.1080/07313820500184971] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
In 2002, poison centers in the US reported 5816 human exposures to ethylene glycol. A guideline that effectively determines the threshold dose for emergency department referral and need for pre-hospital decontamination could potentially avoid unnecessary emergency department visits, reduce health care costs, optimize patient outcome, and reduce life disruption for patients and caregivers. An evidence-based expert consensus process was used to create this guideline. Relevant articles were abstracted by a trained physician researcher. The first draft of the guideline was created by the primary author. The entire panel discussed and refined the guideline before distribution to secondary reviewers for comment. The panel then made changes based on the secondary review comments. The objective of this guideline is to assist poison center personnel in the out-of-hospital triage and initial management of patients with a suspected exposure to ethylene glycol by (1) describing the process by which the exposure might be evaluated, (2) identifying the key decision elements in managing the case, (3) providing clear and practical recommendations that reflect the current state of knowledge, and (4) identifying needs for research. This guideline is based on an assessment of current scientific and clinical information. The panel recognizes that specific patient care decisions may be at variance with this guideline and are the prerogative of the patient and health professionals providing care, considering all of the circumstances involved. Recommendations are in chronological order of likely clinical use. The grade of recommendation is in parentheses. (1) A patient with exposure due to suspected self-harm, misuse, or potentially malicious administration should be referred to an emergency department immediately regardless of the dose reported (Grade D). (2) Patients with inhalation exposures will not develop systemic toxicity and can be managed out-of-hospital if asymptomatic (Grade B). Patients with clinically significant mucous membrane irritation should be referred for evaluation (Grade D). (3) Decontamination of dermal exposures should include routine cleansing with mild soap and water. Removal of contact lenses and immediate irrigation with room temperature tap water is recommended for ocular exposures. All patients with symptoms of eye injury should be referred for an ophthalmologic exam (Grade D). (4) Patients with symptoms of ethylene glycol poisoning should be referred immediately for evaluation regardless of the reported dose (Grade C). (5) The absence of symptoms shortly after ingestion does not exclude a potentially toxic dose and should not be used as a triage criterion (Grade C). (6) Adults who ingest a "swallow" (10-30 mL), children who ingest more than a witnessed taste or lick, or if the amount is unknown of most ethylene glycol products should be referred immediately for evaluation. The potential toxic volume of dilute solutions (e.g., concentration <20%) is larger and can be estimated by a formula in the text (Grade C). (7) A witnessed taste or lick only by a child, or an adult who unintentionally drinks and then expectorates the product without swallowing, does not need referral (Grade C). (8) Referral is not needed if it has been >24 hours since a potentially toxic unintentional exposure, the patient has been asymptomatic, and no alcohol was co-ingested (Grade D). (9) Gastrointestinal decontamination with ipecac syrup, gastric lavage or activated charcoal is not recommended. Transportation to an emergency department should not be delayed for any decontamination procedures (Grade D). (10) Patients meeting referral criteria should be evaluated at a hospital emergency department rather than a clinic. A facility that can quickly obtain an ethylene glycol serum concentration and has alcohol or fomepizole therapy available is preferred. This referral should be guided by local poison center procedures and community resources (Grade D). (11) The administration of alcohol, fomepizole, thiamine, or pyridoxine is not recommended in the out-of-hospital setting (Grade D).
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Affiliation(s)
- E Martin Caravati
- American Association of Poison Control Centers, Washington, DC 20016, USA
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Dreykluft T, Göbel U, Taveira O, Nürnberg M, Luft FC, Kettritz R. Blue acid blues. Nephrol Dial Transplant 2004; 19:2668-71. [PMID: 15388828 DOI: 10.1093/ndt/gfh243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Tilman Dreykluft
- Intensive Care Unit, Auguste-Victoria-Klinikum, Schöneberg, Germany
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