title: A case of traumatic shock complicated by methamphetamine intoxication.
abstract: A case of a 38-year-old male with traumatic shock complicated by methamphetamine intoxication is presented. The patient was involved in an assault which resulted in cardiac tamponade and right ventricular outflow laceration. Pericardiocentesis was immediately performed. However, profound metabolic acidosis greatly in excess of that expected from the short duration of the shock was revealed by arterial blood gas analysis. Another cause of the metabolic acidosis was suspected. The patient subsequently admitted to intravenous use of methamphetamine. Following hemodynamic and metabolic stabilization by continuous pericardial drainage and intravenous administration of sodium bicarbonate, the patient underwent cardiac surgery. His postoperative course was uneventful. There is a substantial association between methamphetamine users and traumatic accidents. In such cases, early identification of drug use is important. Marked metabolic acidosis, which conflicts with the diagnosed cause of shock, may be a clinical clue to methamphetamine intoxication.
authors.affiliation: Department of Emergency & Critical Care Medicine, Keio University School of Medicine, Tokyo, Japan.
authors.forename: T
authors.initials: T
authors.lastname: Horiguchi
authors.forename: S
authors.initials: S
authors.lastname: Hori
authors.forename: Y
authors.initials: Y
authors.lastname: Shinozawa
authors.forename: S
authors.initials: S
authors.lastname: Fujishima
authors.forename: H
authors.initials: H
authors.lastname: Kimura
authors.forename: M
authors.initials: M
authors.lastname: Yokoyama
authors.forename: J
authors.initials: J
authors.lastname: Sasaki
authors.forename: S
authors.initials: S
authors.lastname: Takatsuki
authors.forename: M
authors.initials: M
authors.lastname: Suzuki
authors.forename: M
authors.initials: M
authors.lastname: Yamazaki
authors.forename: N
authors.initials: N
authors.lastname: Aikawa
mesh_terms: D000138:Acidosis / Q000209:etiology*; D000328:Adult; D002305:Cardiac Tamponade / Q000150:complications; D000697:Central Nervous System Stimulants / Q000506:poisoning*; D006801:Humans; D008297:Male; D008694:Methamphetamine / Q000506:poisoning*; D012774:Shock, Traumatic / Q000150:complications* / Q000209:etiology; D015819:Substance Abuse, Intravenous / Q000150:complications*
chemical_list: D000697:Central Nervous System Stimulants; D008694:Methamphetamine