Inquest into the death of Manusiu Amone
Deceased
Manusiu Amone
Demographics
0y, female
Date of death
2014-11-25
Finding date
2018-06-22
Cause of death
ischaemic hypoxic encephalopathy secondary to factors associated with the sudden onset of gasping respirations with difficulty in ventilating, caused by persistent pulmonary hypertension of the newborn
AI-generated summary
Manusiu Amone died from ischaemic hypoxic encephalopathy secondary to persistent pulmonary hypertension of the newborn (PPHN), not from pethidine toxicity as initially suspected. At 145 minutes of life, she developed gasping respirations and failed to respond to resuscitation. Key clinical lessons: (1) pethidine administration at 9:25pm, approximately 35 minutes before delivery, was unwise given advanced labour progression—alternative analgesia (nitrous oxide, reduced syntocinon) should have been considered; (2) the 150mg dose was excessive and based on guesswork rather than validated dosing methodology; (3) forensic pathologists' initial interpretation of autopsy findings (particularly squames in lungs) required specialist perinatal pathology input; (4) the case highlights systemic deficiencies in perinatal postmortem investigation protocols. The excessive squames, raised nucleated red cell count, and unresponsiveness to ventilation pointed to intrauterine hypoxia and primary lung pathology. Clinical staff appropriately managed resuscitation; staffing shortages and call alarm delays were secondary to the underlying pathology.
AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes.
Error types
Drugs involved
Clinical conditions
Contributing factors
- administration of pethidine 35 minutes before delivery in advanced labour
- excessive 150mg dose of pethidine without validated dosing methodology
- intrauterine hypoxic event
- failure of normal transition from fetal to postnatal circulation
- thick-walled, closed pulmonary arteries preventing gas exchange
- staffing shortage in birthing unit (one midwife unavailable from 9:30pm)
- call alarm system not heard in other areas of unit
Coroner's recommendations
- Introduction of a policy requiring postmortem examination of all reportable neonatal deaths be performed jointly by a forensic pathologist and a perinatal and paediatric anatomical pathologist in a forensic facility
- If Recommendation 1 not feasible due to workforce limitations, require postmortem examination of all reportable non-suspicious non-traumatic neonatal hospital deaths be performed by a perinatal and paediatric pathologist at The Children's Hospital at Westmead, Sydney Children's Hospital at Randwick, or John Hunter Children's Hospital
- If Recommendation 1 not feasible, introduce annual training program for Department of Forensic Medicine forensic pathologists regarding identification and significance of squames in neonatal postmortem examinations
- If Recommendation 1 not feasible, develop and implement structured guidelines for consultation between forensic pathologists and perinatal and paediatric pathologists, with documentation and joint authorship of autopsy reports
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