title: Use of intravenous lipid emulsion in the resuscitation of a patient with cardiovascular collapse after a severe overdose of quetiapine.
abstract: BACKGROUND
  Quetiapine is an atypical antipsychotic medication that is increasingly being used in the treatment of psychotic disorders and depression. An overdose of quetiapine is associated with hypotension, sinus tachycardia, and sedation. The clinical effects of its overdose are often mild to moderate, but a severe overdose can cause cardiovascular collapse and death.Intravenous lipid emulsion (ILE) is a proposed treatment for potentially lethal cardiotoxicity after severe overdoses with lipophilic drugs, such as quetiapine, mainly by the sequestration of the lipophilic toxin to an expanded intravascular lipid phase.
  
  
  OBJECTIVE
  To report a case where ILE was successfully used in the resuscitation of a patient with cardiovascular collapse after a severe quetiapine overdose.
  
  
  METHODS
  A 42-year-old woman was admitted to the Emergency Department after being found unconscious at home, due to an estimated ingestion of 24 g of quetiapine (Seroquel). She was initially cardiorespiratory stable and unresponsive with a Glasgow Coma Scale of 3. The woman was immediately admitted to the Intensive Care Unit, where her condition quickly deteriorated. She was intubated, due to loss of airway. In addition, a gastric lavage was performed and activated charcoal was administered. The patient presented with cardiovascular collapse refractory to vasopressor treatment and volume resuscitation. ILE bolus followed by continuous infusion was administered. Her blood pressure started increasing 5 min after ILE was initiated and within an hour circulation was stabilized. The patient recovered completely without any residual symptoms, after 3 days in the ICU.
  
  
  CONCLUSIONS
  ILE may potentially be life-saving in cases of severe quetiapine poisoning and should be considered as a treatment for severe cardiovascular instability resulting from quetiapine poisoning refractory to maximum conventional therapy.
authors.affiliation: Department of Anesthesia and Intensive Care Medicine, Södra Älvsborg Hospital, Borås, Sweden.
authors.forename: Malin
authors.initials: M
authors.lastname: Bartos
authors.forename: Kai
authors.initials: K
authors.lastname: Knudsen
mesh_terms: D000328:Adult; D014150:Antipsychotic Agents / Q000633:toxicity*; D001794:Blood Pressure / Q000187:drug effects; D003128:Coma / Q000139:chemically induced / Q000628:therapy; D003987:Dibenzothiazepines / Q000633:toxicity*; D062787:Drug Overdose / Q000188:drug therapy* / Q000628:therapy*; D005217:Fat Emulsions, Intravenous / Q000627:therapeutic use*; D005260:Female; D006801:Humans; D000069348:Quetiapine Fumarate; D012151:Resuscitation / Q000379:methods*; D012769:Shock / Q000139:chemically induced* / Q000628:therapy
chemical_list: D014150:Antipsychotic Agents; D003987:Dibenzothiazepines; D005217:Fat Emulsions, Intravenous; D000069348:Quetiapine Fumarate