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Alleged overdose of propofol at Concordia Hospital leaves Calgary man amputated and with cognitive disability

The suit alleges negligence caused a 12 to 60 times overdose of propofol, resulting in permanent brain injury and amputations for Zachary Hoogerdyk.

  • Edward Hoogerdyk and the Alberta government filed a lawsuit last week in the Manitoba Court of King's Bench naming Concordia Hospital, the Winnipeg Regional Health Authority, and Shared Health as defendants for negligence.
  • During a March 25, 2024, visit for worsening respiratory symptoms, staff allegedly connected a 1,000 milligram bottle of propofol to an infusion pump, delivering a "massive overdose" of 12 to 60 times the safe dosage range.
  • Zachary went into cardiac arrest only 14 minutes after intubation, suffering oxygen deprivation for about seven minutes that resulted in amputations of his right hand and both legs, leaving him "profoundly impaired" and unable to communicate.
  • After the hospital admitted an error in September 2024, his parents now serve as legal guardians providing constant care, while the family seeks damages for negligence and "a wanton disregard" of well-being.
  • While health officials deemed the incident a critical event and conducted an internal review, neither the Winnipeg Regional Health Authority nor Shared Health has filed a defense in court, and none of the allegations have been proven.
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CBC News broke the news in Canada on Friday, March 27, 2026.
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