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Coroner's Finding: Constantine, Matthew Keith

Deceased

Matthew Keith Constantine

Demographics

33y, male

Date of death

2022-03-20

Finding date

2025-03-31

Cause of death

hypoxic-ischaemic encephalopathy due to hanging with resuscitation

AI-generated summary

Matthew Keith Constantine, aged 33, died from hypoxic-ischaemic encephalopathy following a hanging attempt while under home detention. He was released from prison in December 2021 with parole conditions including electronic monitoring and curfew. Following relationship difficulties, arrest of his girlfriend, and a miscarriage, he experienced acute emotional distress. On 18 March 2022, after his girlfriend blocked contact, he posted suicide threats on social media and hanged himself. Police attended within 28 minutes and initiated resuscitation, achieving return of spontaneous circulation. However, he suffered severe hypoxic brain injury and was declared brain dead on 20 March 2022. The coroner made no recommendations. Key clinical lesson: early identification and intervention for acute suicidal ideation in recently released prisoners with substance use disorders and relationship crises may improve outcomes.

AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes. Report an inaccuracy.

Specialties

intensive careemergency medicinepsychiatryforensic medicine

Drugs involved

methamphetamineamphetaminemirtazapinebuprenorphine/naloxonerocuronium

Clinical conditions

hypoxic ischaemic encephalopathybrainstem deathmetabolic acidosisrespiratory acidosisdepressionanxietyopioid use disordermethamphetamine use

Procedures

intubationmechanical ventilationcardiopulmonary resuscitationclinical brain death testing

Contributing factors

  • acute relationship crisis and girlfriend blocking contact
  • girlfriend's arrest and miscarriage
  • inability to leave South Australia or visit family
  • frustration with parole conditions
  • substance use (methamphetamine detected on toxicology)
  • history of depression and anxiety
  • impulsive personality traits noted in parole assessment
  • social isolation while on parole
Full text

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