Mrs R-W - Non-inquest findings
Demographics
83y, female
Date of death
2015-11-19
Finding date
2017-09-20
Cause of death
Hyponatraemic encephalopathy due to adverse effects of citaprolam and duloxetine administration
AI-generated summary
An 83-year-old woman with pre-existing SIADH-related chronic hyponatraemia died from hyponatraemic encephalopathy following antidepressant therapy. Critical clinical lessons include: (1) the importance of accessing prior medical records—the prescribing physician was unaware of the patient's previous hyponatraemia diagnosis due to hospital record management failures; (2) recognising that both citalopram and duloxetine carry hyponatraemia risk, particularly in elderly patients with fluid balance disturbance; (3) the need for frequent biochemical monitoring when prescribing such medications in at-risk patients; (4) appropriate escalation and communication during clinical deterioration—nursing staff failed to escalate critical observations to senior staff using early warning systems; (5) inter-hospital transfer processes require clear communication and unified management plans rather than fragmented consultant involvement. Earlier identification of the chronic hyponatraemia, more frequent sodium retesting, and stricter documentation of escalation procedures could potentially have altered outcomes.
AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes.
Error types
Drugs involved
Clinical conditions
Contributing factors
- failure to access prior medical records documenting previous SIADH diagnosis
- lack of awareness that pre-existing chronic hyponatraemia was related to SIADH
- prescription of citaprolam in setting of pre-existing hyponatraemia
- substitution with duloxetine which also causes hyponatraemia
- delayed or missed blood test on 17 November
- failure to implement strict fluid restriction despite documented hyponatraemia
- inadequate escalation of clinical deterioration on 18 November (reduced consciousness, hypoxia)
- failure to use early warning response observation (EWARS/Q-ADDS) tool appropriately
- poor communication within emergency department team regarding management plan
- unclear role and decision-making authority of non-credentialed private hospital consultant in public hospital setting
- inadequate nursing handover using SBAR tool
- insufficient documentation of observations and management decisions in emergency department
- delayed admission to medical team for inpatient management
Coroner's recommendations
- Develop and implement mandatory criteria for escalation to a Senior Medical Officer and higher within the Emergency Department
- Review the inter-hospital transfer process between the small metropolitan private hospital and the metropolitan public hospital, with a protocol endorsed by both facilities to clarify clinical responsibility and management continuity
- Develop a local hyponatraemia procedure/protocol
- Provide education and training to nursing staff about use of the Emergency Q-ADDS (Early Warning and Response Observation) tool
- Conduct case discussion with Emergency Department staff for clinical education purposes
- Implement formal processes for emergency admissions to review all medical record requests and ensure prior records are retrieved in a timely manner
- Update Current Clinical Alert forms to indicate what paper records exist for patients
- Ensure all acute inpatients have minimum 4th hourly observations documented on Q-ADDS unless otherwise specified by admitting consultant
- Reinforce with Visiting Medical Officers and staff that Medical Emergency Team calls must be activated when patients meet MET call criteria
- Implement structured handover processes using SBAR tool within emergency department shifts
- Clarify that small metropolitan private hospital consultants should only provide advisory input for patients admitted to the metropolitan public hospital, with full clinical responsibility resting with public hospital medical staff
Full text
Related cases
Source and disclaimer
This page reproduces or summarises information from publicly available findings published by Australian coroners' courts. Coronial is an independent educational resource and is not affiliated with, endorsed by, or acting on behalf of any coronial court or government body.
Content may be incomplete, reformatted, or summarised. All court orders for redaction and non-publication are respected; documents with technically defective redaction have been excluded from the database entirely. Always refer to the original court publication for the authoritative record.
Copyright in original materials remains with the relevant government jurisdiction. AI-generated summaries and tagging are for educational purposes only, may contain inaccuracies, and must not be treated as legal documents. We welcome feedback for correction —