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Lavonas EJ, Akpunonu PD, Arens AM, Babu KM, Cao D, Hoffman RS, Hoyte CO, Mazer-Amirshahi ME, Stolbach A, St-Onge M, Thompson TM, Wang GS, Hoover AV, Drennan IR. 2023 American Heart Association Focused Update on the Management of Patients With Cardiac Arrest or Life-Threatening Toxicity Due to Poisoning: An Update to the American Heart Association Guidelines for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation 2023; 148:e149-e184. [PMID: 37721023 DOI: 10.1161/cir.0000000000001161] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
In this focused update, the American Heart Association provides updated guidance for resuscitation of patients with cardiac arrest, respiratory arrest, and refractory shock due to poisoning. Based on structured evidence reviews, guidelines are provided for the treatment of critical poisoning from benzodiazepines, β-adrenergic receptor antagonists (also known as β-blockers), L-type calcium channel antagonists (commonly called calcium channel blockers), cocaine, cyanide, digoxin and related cardiac glycosides, local anesthetics, methemoglobinemia, opioids, organophosphates and carbamates, sodium channel antagonists (also called sodium channel blockers), and sympathomimetics. Recommendations are also provided for the use of venoarterial extracorporeal membrane oxygenation. These guidelines discuss the role of atropine, benzodiazepines, calcium, digoxin-specific immune antibody fragments, electrical pacing, flumazenil, glucagon, hemodialysis, hydroxocobalamin, hyperbaric oxygen, insulin, intravenous lipid emulsion, lidocaine, methylene blue, naloxone, pralidoxime, sodium bicarbonate, sodium nitrite, sodium thiosulfate, vasodilators, and vasopressors for the management of specific critical poisonings.
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Markert C, Heilmann RM, Kiwitz D, Doerfelt R. Intravenous lipid emulsion for the treatment of poisonings in 313 dogs and 100 cats (2016-2020). Front Vet Sci 2023; 10:1272705. [PMID: 37841477 PMCID: PMC10568331 DOI: 10.3389/fvets.2023.1272705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 09/13/2023] [Indexed: 10/17/2023] Open
Abstract
Introduction The aim of this retrospective study was to analyze the effect and potential adverse effects of intravenous lipid emulsion (ILE) in poisoned dogs and cats over a 5 years period. Methods Medical records of 313 dogs and 100 cats receiving ILE between 2016-2020 were analyzed for suspected toxicant, clinical signs, ILE dosages and frequency, the effect and adverse effects of ILE, and patient outcome. Results Dogs and cats were poisoned with mostly unidentified toxicants (48%), rodenticides (8%), recreational drugs and nuts (7% each) and other toxicants. Clinical signs included neurologic deficits (63%), cardiovascular signs (29%), thermoregulation (21%) or gastrointestinal abnormalities (17%). Treatment with ILE was initiated within a median of 6.0 h (1.0-91.0 h) after poisoning. Dogs and cats received a total amount of median 8.0 mL/kg (1.5-66.6 mL/kg) and 15.8 mL/kg (1.8-69.4 mL/kg) ILE, respectively. A positive effect was observed in 74% of the patients, whereas clinical signs worsened in 4% of the patients after ILE administration. No subjective effect was detected in 22% of the patients. Suspected or possible adverse effects of ILE occurred in 6% of the patients, including neurological signs (temporarily reduced consciousness and ataxia), bradycardia, hyperthermia, vomiting, diarrhea, respiratory distress, worsening of the general behavior, facial swelling, and thrombophlebitis. The overall survival rate was 96%. One dog who potentially experienced adverse events was euthanized. Conclusion ILE treatment was successful in most patients but can be associated with adverse effects. Administration of ILE should be carefully selected on an individual basis after weighing the possible benefits against potential adverse effects.
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Affiliation(s)
- Carina Markert
- Veterinary Clinic for Small Animals, Hofheim, Germany
- Department for Small Animals, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany
| | - Romy Monika Heilmann
- Department for Small Animals, College of Veterinary Medicine, University of Leipzig, Leipzig, Germany
| | | | - René Doerfelt
- LMU Small Animal Clinic, Ludwig-Maximilians-Universität München, Munich, Germany
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Salam S, Nornhold B, Mallat J. Massive metoprolol overdose requiring ECMO: brief review of the evidence behind recommended treatments. BMJ Case Rep 2021; 14:e232130. [PMID: 33952561 PMCID: PMC8103398 DOI: 10.1136/bcr-2019-232130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/22/2021] [Indexed: 11/04/2022] Open
Abstract
A man in his late 60s developed shock after ingesting 7500 mg of metoprolol tartrate that was refractory to all medical treatment including hyperinsulinaemic euglycaemia, intravenous lipid emulsion and dialysis, eventually needing rescue extracorporeal membrane oxygenation. A brief review of the recommended treatments in beta-blocker overdose is therefore warranted.
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Affiliation(s)
- Shameen Salam
- Critical Care Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, UAE
| | - Brandon Nornhold
- Department of Clinical Pharmacology, St Vincent's Hospital and Research Center, Erie, Pennsylvania, USA
| | - Jihad Mallat
- Critical Care Institute, Cleveland Clinic Abu Dhabi, Abu Dhabi, UAE
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van Nispen J, Voigt M, Song E, Armstrong A, Fedorova M, Murali V, Krebs J, Samaddar A, Manithody C, Jain A. Parenteral Nutrition and Cardiotoxicity. Cardiovasc Toxicol 2021; 21:265-271. [PMID: 33554318 DOI: 10.1007/s12012-021-09638-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 01/27/2021] [Indexed: 12/30/2022]
Abstract
Parenteral nutrition (PN) is a life-saving nutritional therapy for those situations when patients are unable to receive enteral nutrition. However, despite a multitude of benefits offered by PN, it is associated with a variety of side effects, most notably parenteral nutrition-associated liver disease (PNALD). Adverse effects of PN on other organ systems, such as brain and cardiovascular system, have been poorly studied. There have been several case reports, studies, and a recent animal study highlighting cardiotoxic effects of PN; however, much remains unclear about the underlying mechanisms causing cardiac damage. In this review, we propose a series of potential mechanisms behind PN-associated heart injury, and we provide an overview of therapeutic strategies and recent scientific advances.
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Affiliation(s)
- Johan van Nispen
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA.
- Department of Surgery, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA.
| | - Marcus Voigt
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
- Department of Surgery, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Eric Song
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Austin Armstrong
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Margarita Fedorova
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Vidul Murali
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Joseph Krebs
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | - Ashish Samaddar
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
| | | | - Ajay Jain
- Department of Pediatrics, Saint Louis University School of Medicine, Saint Louis, MO, 63103, USA
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Hoffman RS, Gosselin S, Villeneuve E, Hayes BD, Hoegberg LCG, Smolinske SC. Comment on Antidotal use of lipid emulsion – the pendulum swings. Clin Toxicol (Phila) 2020; 58:1355-1356. [DOI: 10.1080/15563650.2020.1761025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Robert S. Hoffman
- Division of Medical Toxicology, Ronald O. Perelman Department of Emergency Medicine, NYU Grossman School of Medicine, New York, NY, USA
| | - Sophie Gosselin
- Department of Medicine & Emergency Medicine, McGill University Health Centre, Royal Victoria Hospital, Montreal, QC, Canada
- Hôpital Charles-Lemoyne, Greenfield Park, QC, Canada
| | - Eric Villeneuve
- Department of Pharmacy, McGill University Health Centre, Montreal, QC, Canada
| | - Bryan D. Hayes
- Department of Pharmacy, Massachusetts General Hospital, Boston, MA, USA
- Department of Emergency Medicine, Harvard Medical School, Boston, MA, USA
| | - Lotte C. G. Hoegberg
- Department of Anesthesiology, and The Danish Poisons Information Centre, Copenhagen University Hospital Bispebjerg, Copenhagen, Denmark
| | - Susan C. Smolinske
- New Mexico Poison & Drug Information Center, University of New Mexico, Albuquerque, NM, USA
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Mullins ME, Seger DL. Authors’ reply to Comment on antidotal use of lipid emulsion. Clin Toxicol (Phila) 2020; 58:1357-1358. [DOI: 10.1080/15563650.2020.1775243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Michael E. Mullins
- Section of Medical Toxicology, Department of Emergency Medicine, Washington University School of Medicine, Saint Louis, MO, USA
| | - Donna L. Seger
- Tennessee Poison Center, Vanderbilt University Medical Center, Nashville, TN, USA
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Stellpflug SJ, Bond ME, Henry KD, Engebretsen KM, Zantek ND. Intravenous Fat Emulsion Does Not Significantly Alter Clotting Markers in Dabigatran-Treated Blood. Indian J Hematol Blood Transfus 2020; 37:101-107. [PMID: 33707842 DOI: 10.1007/s12288-020-01309-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 06/15/2020] [Indexed: 10/24/2022] Open
Abstract
Dabigatran etexilate is an oral direct thrombin (Factor IIa) inhibitor approved for patients with atrial fibrillation and for management of risk of deep vein thrombosis and pulmonary embolism. Dabigatran offers advantages over treatment with warfarin, including limited laboratory monitoring. It is equivalent in prevention of stroke and deep vein thrombosis with essentially equivalent complication rates. In contrast to warfarin, reversal of the anticoagulation is less well established. Idarucizumab is available for reversal, however supporting research is mixed; the agent also happens to be quite expensive making availability difficult. Hemodialysis has been proposed as a method of reversal, but this is difficult in patients with life threatening hemorrhage, and is not available at many hospitals. Intravenous fat emulsion (IFE) has been used for treatment of overdose of lipophilic drugs. Most toxicologists only recommend IFE for patients in extremis after ingestion of a lipid soluble substance. Dabigatran is lipid soluble, although the pro-drug more so than the active metabolite. The authors sought to see if dabigatran-induced coagulopathy of human in vitro blood samples could be reversed with IFE. Blood samples were spiked with dabigatran or dabigatran plus IFE. Values for Ecarin clot time (ECT-primary outcome), PT/INR, and aPTT, were compared across both study arms. A total of 18 healthy volunteers were included in our study. There were no significant differences in the ECT, PT/INR, and aPTT between the dabigatran arm and the dabigatran plus IFE arm. Based on these methods, IFE does not reverse dabigatran-induced coagulopathy.
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Affiliation(s)
- Samuel J Stellpflug
- Department of Emergency Medicine, Regions Hospital, 640 Jackson Street, Saint Paul, MN 55101 USA
| | - Michael E Bond
- Department of Emergency Medicine, Regions Hospital, 640 Jackson Street, Saint Paul, MN 55101 USA
| | - Keith D Henry
- Department of Emergency Medicine, Regions Hospital, 640 Jackson Street, Saint Paul, MN 55101 USA
| | - Kristin M Engebretsen
- Department of Emergency Medicine, Regions Hospital, 640 Jackson Street, Saint Paul, MN 55101 USA
| | - Nicole D Zantek
- Department of Laboratory Medicine and Pathology, University of Minnesota, Minneapolis, MN USA
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The Use of Extracorporeal Life Support in a Patient Suffering from Venlafaxine Intoxication. A Case Report. ACTA ACUST UNITED AC 2020; 6:120-123. [PMID: 32426519 PMCID: PMC7216027 DOI: 10.2478/jccm-2020-0014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 02/26/2020] [Indexed: 02/06/2023]
Abstract
Very few reports exist on serious cardiac complications associated with intake of serotonin-noradrenaline reuptake inhibitors. This paper describes and discusses the case of a patient who ingested a dose of 17.5 g venlafaxine. She developed a full serotonergic syndrome leading to multi-organ failure, including refractory cardiovascular shock, which was managed by early implantation of an extracorporeal life support (ECLS) system as a bridging strategy. This intervention was successful and resulted in full recovery of the patient.
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Rotella JA, Greene SL, Koutsogiannis Z, Graudins A, Hung Leang Y, Kuan K, Baxter H, Bourke E, Wong A. Treatment for beta-blocker poisoning: a systematic review. Clin Toxicol (Phila) 2020; 58:943-983. [DOI: 10.1080/15563650.2020.1752918] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Joe-Anthony Rotella
- Victorian Poisons Information Centre, Austin Health, Victoria, Australia
- Department of Emergency Medicine, Northern Health, Epping, Victoria
| | - Shaun L. Greene
- Victorian Poisons Information Centre, Austin Health, Victoria, Australia
- Department of Medicine, Faculty of Medicine, University of Melbourne, Victoria, Australia
| | - Zeff Koutsogiannis
- Victorian Poisons Information Centre, Austin Health, Victoria, Australia
- Department of Emergency Medicine, Northern Health, Epping, Victoria
| | - Andis Graudins
- Victorian Poisons Information Centre, Austin Health, Victoria, Australia
- Monash Toxicology and Emergency Department, Monash Health, Victoria, Australia
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Victoria, Australia
| | - Yit Hung Leang
- Victorian Poisons Information Centre, Austin Health, Victoria, Australia
| | - Kelvin Kuan
- Department of Emergency Medicine, Changi General Hospital, Singapore, Singapore
| | - Helen Baxter
- Austin Health Library, Austin Health, Victoria, Australia
| | - Elyssia Bourke
- Victorian Poisons Information Centre, Austin Health, Victoria, Australia
| | - Anselm Wong
- Victorian Poisons Information Centre, Austin Health, Victoria, Australia
- Department of Medicine, School of Clinical Sciences at Monash Health, Monash University, Victoria, Australia
- Department of Medicine and Radiology, Centre for Integrated Critical Care, Melbourne Medical School, University of Melbourne, Victoria, Australia
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Use of a Porcine Model to Evaluate the Risks and Benefits of Vasopressors in Propranolol Poisoning. J Med Toxicol 2020; 16:212-221. [PMID: 31981076 DOI: 10.1007/s13181-020-00758-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 12/18/2019] [Accepted: 01/05/2020] [Indexed: 10/25/2022] Open
Abstract
INTRODUCTION Vasopressors are a commonly used treatment in beta-blocker poisoning despite evidence they may be ineffective or harmful. The primary objective of the present study is to use previously collected data from two prior studies (high-dose insulin (HDI) versus vasopressin + epinephrine and a placebo-controlled HDI study) to compare survival between vasopressin + epinephrine and placebo. Secondary outcomes included a comparison with HDI as well as comparisons with hemodynamic parameters, including mean arterial pressure (MAP), cardiac output (CO), heart rate (HR), and systemic vascular resistance (SVR). METHODS Cardiogenic shock was induced in healthy pigs with a bolus of 0.5 mg/kg of intravenous propranolol followed by an infusion of 0.25 mg/kg/minute until the point of toxicity, defined as (0.75 × initial HR × initial MAP), at which point the infusion was reduced to 0.125 mg/kg/minute for 240 (vasopressin + epinephrine or HDI) or 360 minutes (placebo) or until death. RESULTS Survival was significantly lower in pigs receiving vasopressin + epinephrine (0%, 0/5) than in pigs receiving placebo (50%, 2/4) (p < 0.01). Survival was significantly higher with HDI compared with both groups (100%, 5/5) (p < 0.01). All vasopressin + epinephrine pigs died within 100 minutes after reaching toxicity. Over the course of the resuscitation, we observed a statistically significant steady decrease in CO and HR in the vasopressin + epinephrine group compared with placebo (p < 0.01). In contrast, we observed a statistically significant change in MAP and SVR that followed a parabolic arc, with MAP and SVR rising significantly initially in the vasopressin + epinephrine group then rapidly falling until death (p < 0.01). CONCLUSIONS Mortality was higher with vasopressors compared with placebo in this porcine model of propranolol poisoning. Further studies are warranted to define the optimal timing and role of vasopressors in beta-blocker poisoning.
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Bupropion Overdose Complicated by Cardiogenic Shock Requiring Vasopressor Support and Lipid Emulsion Therapy. J Emerg Med 2020; 58:e47-e50. [PMID: 31911020 DOI: 10.1016/j.jemermed.2019.11.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Revised: 11/08/2019] [Accepted: 11/23/2019] [Indexed: 01/09/2023]
Abstract
BACKGROUND Bupropion overdose is a commonly encountered presentation in the emergency department (ED). While the majority of cases resolve with supportive care, serious adverse effects, including seizures, cardiogenic shock, and death, can occur. Intravenous lipid emulsion (ILE) therapy has been utilized for a multitude of poisonings with varying levels of success. Although a number of cases suggest the value of ILE therapy in cases of bupropion overdose, more recent data propose that its role may be overstated. CASE REPORT A young woman presented to the ED with altered mental status complicated by seizure after bupropion overdose. She subsequently developed cardiogenic shock requiring vasopressor support. Bedside echocardiogram revealed a decreased left ventricular ejection fraction (LVEF). She received ILE therapy with significant improvement in both hemodynamic status and LVEF by bedside ultrasound. WHY SHOULD AN EMERGENCY PHYSICIAN BE AWARE OF THIS?: Although the majority of patients presenting with bupropion overdose improve with supportive care, life-threatening sequelae are possible. ILE therapy has shown promise in a variety of different overdose situations, although the evidence in cases of bupropion poisoning has been varied, and it has traditionally been utilized as a last-line rescue modality. Based on hemodynamic parameters and bedside ultrasound, this case suggests that early initiation of ILE therapy should be considered in these cases, as the potential benefits likely outweigh the theoretical risks.
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Practical guide for the management of systemic toxicity caused by local anesthetics. J Anesth 2018; 33:1-8. [PMID: 30417244 DOI: 10.1007/s00540-018-2542-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2018] [Accepted: 08/04/2018] [Indexed: 10/27/2022]
Abstract
Systemic toxicity from local anesthetics can occur in any of the wide range of situations in which these agents are used. This practical guide is created to generate a shared awareness of the prevention, diagnosis, and treatment of local anesthetic systemic toxicity among all medical professionals who perform nerve blocks. Systemic toxicity of local anesthetic is induced by an increase of its protein-unbound plasma concentration. Initial symptoms are characterized by central nervous system signs such as excitation, convulsions, followed by loss of consciousness and respiratory arrest. These symptoms are often accompanied with cardiovascular signs such as hypertension, tachycardia and premature ventricular contractions. Further increase of plasma concentration of local anesthetic induces bradycardia, conduction disturbances, circulatory collapse and asystole. The incidence of local anesthetic systemic toxicity is 1-11 cases per 10,000. Infants, patients with decreased liver function and low cardiac output are vulnerable to systemic toxicity. When performing regional anesthesia, the guideline-directed monitoring, securing a venous line, preparation of medication to treat convulsions and lipid emulsions are required. For prevention of local anesthetic systemic toxicity, small-dose, divided administration, using agents with low toxicity such as ropivacaine and levobupivacaine, performing an aspiration test are recommended. If systemic toxicity is suspected, halt administration of local anesthetic, request assistance, secure venous line, airway, administration of 100% oxygen and if necessary tracheal intubation and artificial respiration should be immediately performed. Benzodiazepines are recommended to treat convulsions. Administration of 20% lipid emulsion according to the protocol is recommended to treat severe hypotension and arrhythmia.
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Chhabria BA, Bhalla A, Shafiq N, Kumar S, Dhibar DP, Sharma N. Lipid emulsion for acute organophosphate insecticide poisoning – a pilot observational safety study. Clin Toxicol (Phila) 2018; 57:318-324. [DOI: 10.1080/15563650.2018.1520997] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Bharath A. Chhabria
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Ashish Bhalla
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Nusrat Shafiq
- Department of Clinical Pharmacology, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Susheel Kumar
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Deba Prasad Dhibar
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
| | - Navneet Sharma
- Department of Internal Medicine, Post Graduate Institute of Medical Education and Research, Chandigarh, India
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Cole JB, Arens AM, Laes JR, Klein LR, Bangh SA, Olives TD. High dose insulin for beta-blocker and calcium channel-blocker poisoning. Am J Emerg Med 2018; 36:1817-1824. [DOI: 10.1016/j.ajem.2018.02.004] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 01/31/2018] [Accepted: 02/04/2018] [Indexed: 02/06/2023] Open
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Smolinske S, Hoffman RS, Villeneuve E, Hoegberg LCG, Gosselin S. Utilization of lipid emulsion therapy in fatal overdose cases: an observational study. Clin Toxicol (Phila) 2018; 57:197-202. [DOI: 10.1080/15563650.2018.1504954] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Susan Smolinske
- New Mexico Poison and Drug Information Center, University of New Mexico, Albuquerque, NM, USA
| | - Robert S. Hoffman
- Division of Medical Toxicology, Ronald O. Perelman Department of Emergency Medicine, NYU School of Medicine, New York, NY, USA
| | - Eric Villeneuve
- Department of Pharmacy, McGill University Health Centre, Montreal, Canada
| | - Lotte C. G. Hoegberg
- Department of Anesthesiology and the Danish Poisons Information Centre, Copenhagen University Hospital Bispebjerg and Frederiksberg, Copenhagen, Denmark
| | - Sophie Gosselin
- Centre Antipoison du Québec, McGill University Health Centre, Hôpital Charles Lemoyne, Quebec, Canada
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Fadhlillah F, Patil S. Pharmacological and mechanical management of calcium channel blocker toxicity. BMJ Case Rep 2018; 2018:bcr-2018-225324. [PMID: 30150339 PMCID: PMC6119390 DOI: 10.1136/bcr-2018-225324] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/11/2018] [Indexed: 11/04/2022] Open
Abstract
Cardiovascular instability associated with calcium channel blocker toxicity comprises a small percentage of overdose presentations, yet they are associated with a high mortality rate. We detail the management of a 64-year-old man who took an intentional overdose of 840 mg nimodipine. We include the treatment he received and highlight the scarcity of evidence behind the use of gastric decontamination, calcium, glucagon, intravenous lipid emulsion, high-dose insulin therapy, sodium bicarbonate, vasopressors and methylene blue in calcium channel blocker toxicity. Additionally, the article explores the use of electrical pacing and venoarterial extracorporeal membrane oxygenation (VA-ECMO). Following successful weaning of VA-ECMO, the patient was successfully extubated but remained neurologically impaired due to hypoxic-ischaemic brain injury, critical care polyneuropathy and renal failure requiring dialysis. He has cerebral performance category 3; he has mild cognitive impairment but able to perform some activities of daily living independently and communicate his thoughts and needs. He requires no respiratory or cardiovascular support.
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Affiliation(s)
- Fiqry Fadhlillah
- Emergency Department, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - Shashank Patil
- Emergency Department, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
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Kryshtal DO, Dawling S, Seger D, Knollmann BC. In Vitro Studies Indicate Intravenous Lipid Emulsion Acts as Lipid Sink in Verapamil Poisoning. J Med Toxicol 2017; 12:165-71. [PMID: 26553277 DOI: 10.1007/s13181-015-0511-y] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Intravenous lipid emulsion (ILE), a component of parenteral nutrition, consists of a fat emulsion of soy bean oil, egg phospholipids, and glycerin. Case reports suggest that ILE may reverse hypotension caused by acute poisoning with lipophilic drugs such as verapamil, but the mechanism remains unclear. The methods used are the following: (1) measurement of ILE concentration in serum samples from a patient with verapamil poisoning treated with ILE, (2) measurement of free verapamil concentrations in human serum mixed in vitro with increasing concentrations of ILE, and (3) measurement of murine ventricular cardiomyocyte L-type Ca(2+) currents, intracellular Ca(2+), and contractility in response to verapamil and/or ILE. Maximum patient serum ILE concentration after infusion of 1 L ILE over 1 h was approximately 1.6 vol%. In vitro GC/MS verapamil assays showed that addition of ILE (0.03-5.0 vol%) dose-dependently decreased the free verapamil concentration in human serum. In voltage-clamped myocytes, adding ILE to Tyrode's solution containing 5 μM verapamil recovered L-type Ca(2+) currents (ICa). Recovery was concentration dependent, with significant ICa recovery at ILE concentrations as low as 0.03 vol%. ILE had no effect on ICa in the absence of verapamil. In field-stimulated intact ventricular myocytes exposed to verapamil, adding ILE (0.5 %) resulted in a rapid and nearly complete recovery of myocyte contractility and intracellular Ca(2+). Our in vitro studies indicate that ILE acts as a lipid sink that rapidly reverses impaired cardiomyocyte contractility in the continued presence of verapamil.
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Affiliation(s)
- Dmytro O Kryshtal
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University, Medical Research Building IV, Rm. 1265, 2215B Garland Ave, Nashville, TN, 37232-0575, USA
| | - Sheila Dawling
- Department of Pathology, Vanderbilt University, Nashville, TN, USA
| | - Donna Seger
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University, Medical Research Building IV, Rm. 1265, 2215B Garland Ave, Nashville, TN, 37232-0575, USA
| | - Bjorn C Knollmann
- Department of Medicine, Division of Clinical Pharmacology, Vanderbilt University, Medical Research Building IV, Rm. 1265, 2215B Garland Ave, Nashville, TN, 37232-0575, USA.
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Chhabra N, DesLauriers C, Wahl M, Bryant SM. Management of severe bupropion poisoning with intravenous lipid emulsion. Clin Toxicol (Phila) 2017. [PMID: 28644682 DOI: 10.1080/15563650.2017.1337909] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
BACKGROUND Bupropion toxicity is characterized by central nervous system and cardiovascular toxicity. Intravenous lipid emulsion (ILE) has been suggested as a treatment by some for the treatment of refractory bupropion toxicity. This recommendation is based largely on published case reports and cases presented at scientific meetings. The objective of this study is to characterize the outcomes of patients with suspected bupropion toxicity in which ILE was administered and the indications for its use. METHODS Electronic records from one regional poison center were searched for intentional bupropion ingestions from 1 January 2009 through 31 December 2015. Cases in which ILE was administered or death was listed as the outcome were further analyzed. RESULTS There were 1274 cases of suspected bupropion ingestion reported during the study period with 14 reported deaths. Nine cases of ILE administration were identified. Of these, four patients expired and five survived. One of the survivors had neurologic sequelae necessitating placement in a long-term care facility. Patient complications after ILE administration were common and included continued hypotension in 7 cases, recurrent seizures in 3 patients, ARDS in two patients, and renal failure in one patient. CONCLUSIONS The high mortality and complication rate after ILE in this study sample does not reflect the positive outcome benefit seen in previous published case reports. Further characterization of the efficacy and complications of ILE in bupropion toxicity is needed.
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Affiliation(s)
- Neeraj Chhabra
- a Department of Emergency Medicine , Cook County Hospital (Stroger), Toxikon Consortium , Chicago , IL , USA
| | | | | | - Sean M Bryant
- a Department of Emergency Medicine , Cook County Hospital (Stroger), Toxikon Consortium , Chicago , IL , USA.,b Illinois Poison Center , Chicago , IL , USA
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Lim WY, Wijeratne SA, Lim EHL. Awake caudal anaesthesia in neonates/young infants for improved patient safety. BMJ Case Rep 2017; 2017:bcr-2016-218500. [PMID: 28551594 PMCID: PMC5612206 DOI: 10.1136/bcr-2016-218500] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/12/2017] [Indexed: 11/04/2022] Open
Abstract
Caudal epidural block in a conscious infant is a recognised technique that allows the avoidance of general anaesthesia and risks associated with it. It is also technically easier to perform reliably compared with an awake subarachnoid block in skilled hands.1 While local anaesthetic systemic toxicity is a rare complication of caudal anaesthesia, this case illustrates the potential for caudal anaesthesia done awake in enhancing patient safety through early recognition of local anaesthetic systemic toxicity.
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Affiliation(s)
- Wan Yen Lim
- Anaesthesiology, Singapore General Hospital, Singapore, Singapore
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21
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St-Onge M, Anseeuw K, Cantrell FL, Gilchrist IC, Hantson P, Bailey B, Lavergne V, Gosselin S, Kerns W, Laliberté M, Lavonas EJ, Juurlink DN, Muscedere J, Yang CC, Sinuff T, Rieder M, Mégarbane B. Experts Consensus Recommendations for the Management of Calcium Channel Blocker Poisoning in Adults. Crit Care Med 2017; 45:e306-e315. [PMID: 27749343 PMCID: PMC5312725 DOI: 10.1097/ccm.0000000000002087] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To provide a management approach for adults with calcium channel blocker poisoning. DATA SOURCES, STUDY SELECTION, AND DATA EXTRACTION Following the Appraisal of Guidelines for Research & Evaluation II instrument, initial voting statements were constructed based on summaries outlining the evidence, risks, and benefits. DATA SYNTHESIS We recommend 1) for asymptomatic patients, observation and consideration of decontamination following a potentially toxic calcium channel blocker ingestion (1D); 2) as first-line therapies (prioritized based on desired effect), IV calcium (1D), high-dose insulin therapy (1D-2D), and norepinephrine and/or epinephrine (1D). We also suggest dobutamine or epinephrine in the presence of cardiogenic shock (2D) and atropine in the presence of symptomatic bradycardia or conduction disturbance (2D); 3) in patients refractory to the first-line treatments, we suggest incremental doses of high-dose insulin therapy if myocardial dysfunction is present (2D), IV lipid-emulsion therapy (2D), and using a pacemaker in the presence of unstable bradycardia or high-grade arteriovenous block without significant alteration in cardiac inotropism (2D); 4) in patients with refractory shock or who are periarrest, we recommend incremental doses of high-dose insulin (1D) and IV lipid-emulsion therapy (1D) if not already tried. We suggest venoarterial extracorporeal membrane oxygenation, if available, when refractory shock has a significant cardiogenic component (2D), and using pacemaker in the presence of unstable bradycardia or high-grade arteriovenous block in the absence of myocardial dysfunction (2D) if not already tried; 5) in patients with cardiac arrest, we recommend IV calcium in addition to the standard advanced cardiac life-support (1D), lipid-emulsion therapy (1D), and we suggest venoarterial extracorporeal membrane oxygenation if available (2D). CONCLUSION We offer recommendations for the stepwise management of calcium channel blocker toxicity. For all interventions, the level of evidence was very low.
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Affiliation(s)
- Maude St-Onge
- 1Centre antipoison du Québec, CHU de Quebec Research Center, Population Health and Optimal Health Practices, Department of Family Medicine and Emergency medicine, Department of Anesthesiology and Critical Care Medicine, Université Laval, Ville de Québec, Quebec, Canada. 2Department of Emergency Medicine, ZNA Stuivenberg, Antwerp, Belgium 3School of Pharmacy, University of California, San Francisco, San Francisco, CA. 4Heart and Vascular Institute, Penn State Hershey Medical Center, Hershey, PA. 5Department of Intensive Care, Cliniques St-Luc, Université Catholique de Louvain, Leuven, Belgium. 6Division of Emergency Medicine, Department of Pediatrics, CHU Sainte-Justine, Université de Montréal, Montreal, QC, Canada. 7Department of Medical Biology, Hôpital du Sacré-Coeur de Montréal, University of Montreal, Montreal, QC, Canada. 8Centre antipoison du Québec, Department of Medicine, McGill University, Department of Emergency Medicine, McGill University Health Centre, Montreal, QC, Canada. 9Division of Medical Toxicology, Department of Emergency Medicine, Carolinas Medical Center, Charlotte, NC. 10Quebec Poison Centre, Department of Emergency Medicine, McGill University Health Centre, Montreal, QC, Canada. 11Department of Emergency Medicine, Denver Health and Hospital Authority, University of Colorado, Boulder, CO. 12Ontario Poison Centre, Sunnybrook Health Sciences Centre, Departments of Medicine and Pediatrics, University of Toronto, Toronto, ON, Canada. 13Kingston General Hospital, Queens' University, Kingston, ON, Canada. 14Institute of Environmental & Occupational Health Sciences, School of Medicine, National Yang-Ming University, Taipei, Taiwan. 15Division of Clinical Toxicology & Occupational Medicine, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan. 16Department of Critical Care Medicine, Sunnybrook Health Sciences Centre, and Interdepartmental Division of Critical Care, University of Toronto, Toronto, ON, Canada. 17Department of Paediatrics, Physiology and Pharmacology and Medicine, Western University, London, ON, Canada. 18Department of Medical and Toxicological Critical Care, Lariboisière Hospital, INSERM U1144, Paris-Diderot University, Paris, France
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Forsberg M, Forsberg S, Edman G, Höjer J. No support for lipid rescue in oral poisoning: A systematic review and analysis of 160 published cases. Hum Exp Toxicol 2016; 36:461-466. [DOI: 10.1177/0960327116679715] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Lipid rescue is used as treatment of various poisonings despite weak scientific evidence. Some experimental studies have indicated a positive effect, but others have not. Clinical studies are lacking, wherefore a systematic review of virtually all published human case reports is presented. The case reports were searched for in PubMed and Web of Science and examined by two experts according to an assessment form grading the probability for a causal connection between lipid rescue and improved symptoms. A total of 160 cases were finally included, of which 30 had no positive effect of lipid rescue. Among the 130 included cases with alleged positive effect, 94 were oral poisonings and 36 were cases with local anesthetic systemic toxicity (LAST). The experts’ assessment resulted in a “certain” causal connection in three cases with LAST but not in oral poisoning. Moreover, the mean assessment score among the oral poisonings was significantly worse than the corresponding score in the cases with LAST. The average log p-value of the main toxins among the oral poisonings was significantly lower than the corresponding p-value in the cases with LAST. Among the oral poisonings, 91% had received some other resuscitative treatment more or less simultaneously with lipid rescue. Considering the findings of this study and the increasingly reported adverse effects of lipid rescue, it’s reasonable to strictly limit its use in clinical practice. We would not recommend it in oral poisonings.
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Affiliation(s)
- M Forsberg
- Department of Surgery, Norrtälje Sjukhus, TioHundra AB, Sweden
| | - S Forsberg
- Department of Anaesthesiology and Intensive Care, Norrtälje Sjukhus, TioHundra AB, Sweden
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Swedish Poisons Information Centre, Stockholm, Sweden
| | - G Edman
- Department of Psychiatry, Norrtälje sjukhus, TioHundra AB, Sweden
| | - J Höjer
- Department of Clinical Science and Education, Södersjukhuset, Karolinska Institutet, Stockholm, Sweden
- Swedish Poisons Information Centre, Stockholm, Sweden
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Lam SH, Majlesi N, Vilke GM. Use of Intravenous Fat Emulsion in the Emergency Department for the Critically Ill Poisoned Patient. J Emerg Med 2016; 51:203-14. [DOI: 10.1016/j.jemermed.2016.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 02/05/2016] [Indexed: 11/25/2022]
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Höjer J, Jacobsen D, Neuvonen PJ, Rosenberg PH. Lipid Rescue - Efficacy and Safety Still Unproven. Basic Clin Pharmacol Toxicol 2016; 119:345-8. [DOI: 10.1111/bcpt.12607] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2016] [Accepted: 04/08/2016] [Indexed: 12/12/2022]
Affiliation(s)
- Jonas Höjer
- Swedish Poisons Information Center; Karolinska Institute; Stockholm Sweden
| | - Dag Jacobsen
- Department of Acute Medicine; Oslo University Hospital; Oslo Norway
| | - Pertti J. Neuvonen
- Department of Clinical Pharmacology; Helsinki University Hospital and University of Helsinki; Helsinki Finland
| | - Per H. Rosenberg
- Department of Anaesthesiology and Intensive Care Medicine; Helsinki University Hospital and University of Helsinki; Helsinki Finland
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25
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Hayes BD, Gosselin S, Calello DP, Nacca N, Rollins CJ, Abourbih D, Morris M, Nesbitt-Miller A, Morais JA, Lavergne V. Systematic review of clinical adverse events reported after acute intravenous lipid emulsion administration. Clin Toxicol (Phila) 2016; 54:365-404. [PMID: 27035513 DOI: 10.3109/15563650.2016.1151528] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Intravenous lipid emulsions (ILEs) were initially developed to provide parenteral nutrition. In recent years, ILE has emerged as a treatment for poisoning by local anesthetics and various other drugs. The dosing regimen for the clinical toxicology indications differs significantly from those used for parenteral nutrition. The evidence on the efficacy of ILE to reverse acute toxicity of diverse substances consists mainly of case reports and animal experiments. Adverse events to ILE are important to consider when clinicians need to make a risk/benefit analysis for this therapy. METHODS Multiple publication databases were searched to identify reports of adverse effects associated with acute ILE administration for either treatment of acute poisoning or parenteral nutrition. Articles were selected based on pre-defined criteria to reflect acute use of ILE. Experimental studies and reports of adverse effects as a complication of long-term therapy exceeding 14 days were excluded. RESULTS The search identified 789 full-text articles, of which 114 met the study criteria. 27 were animal studies, and 87 were human studies. The adverse effects associated with acute ILE administration included acute kidney injury, cardiac arrest, ventilation perfusion mismatch, acute lung injury, venous thromboembolism, hypersensitivity, fat embolism, fat overload syndrome, pancreatitis, extracorporeal circulation machine circuit obstruction, allergic reaction, and increased susceptibility to infection. CONCLUSION The emerging use of ILE administration in clinical toxicology warrants careful attention to its potential adverse effects. The dosing regimen and context of administration leading to the adverse events documented in this review are not generalizable to all clinical toxicology scenarios. Adverse effects seem to be proportional to the rate of infusion as well as total dose received. Further safety studies in humans and reporting of adverse events associated with ILE administration at the doses advocated in current clinical toxicology literature are needed.
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Affiliation(s)
- Bryan D Hayes
- a Department of Pharmacy , University of Maryland Medical Center and Department of Emergency Medicine, University of Maryland School of Medicine , Baltimore , MD , USA
| | - Sophie Gosselin
- b Department of Medicine, McGill Faculty of Medicine, Emergency Medicine , McGill University Health Centre , Montréal , Canada ;,c Province of Alberta Drug Information Services , Alberta , Canada ;,d Centre antipoison du Québec , Québec , Canada
| | - Diane P Calello
- e Medical Toxicology, Department of Emergency Medicine , Morristown Medical Center, Emergency Medical Associates , Morristown , NJ , USA
| | - Nicholas Nacca
- f Department of Surgery, Division of Emergency Medicine , University of Vermont , Burlington , VT , USA
| | - Carol J Rollins
- g Banner-University Medical Center Tucson, University of Arizona College of Pharmacy , Tucson , AZ , USA
| | - Daniel Abourbih
- h Department of Medicine, Division of Emergency Medicine , University of Toronto , Toronto , Canada
| | - Martin Morris
- i Life Sciences Library , McGill University , Montréal , Canada
| | | | - José A Morais
- j Division of Geriatric Medicine , McGill University , Montréal , Québec , Canada
| | - Valéry Lavergne
- k Department of Medical Biology , Sacré-Coeur Hospital, University of Montréal , Montréal , Canada
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Levine M, Hoffman RS, Lavergne V, Stork CM, Graudins A, Chuang R, Stellpflug SJ, Morris M, Miller-Nesbitt A, Gosselin S. Systematic review of the effect of intravenous lipid emulsion therapy for non-local anesthetics toxicity. Clin Toxicol (Phila) 2016; 54:194-221. [DOI: 10.3109/15563650.2015.1126286] [Citation(s) in RCA: 73] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Michael Levine
- Department of Emergency Medicine, Section of Medical Toxicology, University of Southern California, Los Angeles, CA, USA
| | - Robert S. Hoffman
- Division of Medical Toxicology, Ronald O. Perelman Department of Emergency Medicine, New York University School of Medicine, New York, NY, USA
| | - Valéry Lavergne
- Department of Medical Biology, Sacré-Coeur Hospital, University of Montreal, Montreal, Canada
| | - Christine M. Stork
- Department of Emergency Medicine, Upstate Medical University, New York and Upstate New York Poison Center, New York, NY, USA
| | - Andis Graudins
- Department of Medicine, School of Clinical Sciences at Monash Health, Clinical Toxicology Service at Monash Health and Monash Emergency Translational Research Group, Monash University, Clayton, Victoria, Australia
| | - Ryan Chuang
- Department of Emergency Medicine, University of Calgary, Poison and Drug Information Service, Calgary, Canada
| | | | - Martin Morris
- Schulich Library of Science and Engineering, McGill University, Montreal, Canada; and
| | - Andrea Miller-Nesbitt
- Schulich Library of Science and Engineering, McGill University, Montreal, Canada; and
| | - Sophie Gosselin
- Department of Emergency Medicine, McGill University Health Centre & Department of Medicine, McGill University, Montreal, Canada
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Lavonas EJ, Drennan IR, Gabrielli A, Heffner AC, Hoyte CO, Orkin AM, Sawyer KN, Donnino MW. Part 10: Special Circumstances of Resuscitation: 2015 American Heart Association Guidelines Update for Cardiopulmonary Resuscitation and Emergency Cardiovascular Care. Circulation 2016; 132:S501-18. [PMID: 26472998 DOI: 10.1161/cir.0000000000000264] [Citation(s) in RCA: 172] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Eisenkraft A, Falk A. The possible role of intravenous lipid emulsion in the treatment of chemical warfare agent poisoning. Toxicol Rep 2016; 3:202-210. [PMID: 28959540 PMCID: PMC5615427 DOI: 10.1016/j.toxrep.2015.12.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2015] [Revised: 11/29/2015] [Accepted: 12/24/2015] [Indexed: 12/19/2022] Open
Abstract
Organophosphates (OPs) are cholinesterase inhibitors that lead to a characteristic toxidrome of hypersecretion, miosis, dyspnea, respiratory insufficiency, convulsions and, without proper and early antidotal treatment, death. Most of these compounds are highly lipophilic. Sulfur mustard is a toxic lipophilic alkylating agent, exerting its damage through alkylation of cellular macromolecules (e.g., DNA, proteins) and intense activation of pro-inflammatory pathways. Currently approved antidotes against OPs include the peripheral anticholinergic drug atropine and an oxime that reactivates the inhibited cholinesterase. Benzodiazepines are used to stop organophosphate-induced seizures. Despite these approved drugs, efforts have been made to introduce other medical countermeasures in order to attenuate both the short-term and long-term clinical effects following exposure. Currently, there is no antidote against sulfur mustard poisoning. Intravenous lipid emulsions are used as a source of calories in parenteral nutrition. In recent years, efficacy of lipid emulsions has been shown in the treatment of poisoning by fat-soluble compounds in animal models as well as clinically in humans. In this review we discuss the usefulness of intravenous lipid emulsions as an adjunct to the in-hospital treatment of chemical warfare agent poisoning.
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Affiliation(s)
- Arik Eisenkraft
- NBC Protection Division, IMOD, Israel.,Israel Defense Forces Medical Corps, Israel.,The Institute for Research in Military Medicine, The Faculty of Medicine, The Hebrew University, Jerusalem, Israel
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Abstract
Maintaining adequate tissue perfusion depends on a variety of factors, all of which can be influenced by xenobiotics (substances foreign to the body, including pharmaceuticals, chemicals, and natural compounds). Volume status, systemic vascular resistance, myocardial contractility, and cardiac rhythm all play a significant role in ensuring hemodynamic stability and proper cardiovascular function. Direct effects on the nervous system, the vasculature, or the heart itself as well as indirect metabolic effects may play a significant role in the development of cardiotoxicity. This article is dedicated to discussion of the disruption of cardiovascular physiology by xenobiotics.
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Cao D, Heard K, Foran M, Koyfman A. Intravenous Lipid Emulsion in the Emergency Department: A Systematic Review of Recent Literature. J Emerg Med 2015; 48:387-97. [DOI: 10.1016/j.jemermed.2014.10.009] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2014] [Revised: 10/01/2014] [Accepted: 10/12/2014] [Indexed: 10/24/2022]
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