An 80-year-old man with severe depression, suicidal ideation, and probable vascular dementia died by drowning after leaving a psychiatric ward. He was appropriately treated with ECT, medication, and placed on an ITO. However, his observation schedule was erroneously changed from 15-minute to 30-minute intervals by nursing staff without medical authorization. He left the ward in a confused state and was found in a creek hours later. While expert review confirmed overall treatment was appropriate, the observation error created a window where earlier detection might have been possible. Key clinical lessons include the importance of accurate documentation of observation orders, ensuring continuity of psychiatric care during staff absences, and balancing patient autonomy with appropriate supervision for high-risk individuals. No evidence suggested intentional suicide. The death was likely due to accidental drowning in confusion, possibly complicated by undiagnosed cardiac disease.
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decreased observation frequency due to documentation error
lack of psychiatric review for 48 hours due to staff absence
unlocked ward with unrestricted patient access
Coroner's recommendations
Future versions of patient physical observations forms should include information regarding the patient's recommended observation regime as clinically specified by the treating team
Observation sheets should indicate whether patients are restricted to the ward or able to leave and for what periods
Implement an education program to address issues relating to poor documentation of absconding incidents and clinical decision-making
Redesign PICU weekend planning documentation to include information on which clinicians were present at meetings and which ward was being discussed
Develop a process ensuring all new Friday admissions to mental health inpatient units who are not seen by their treating team are reviewed by a psychiatry registrar over the weekend
Establish a system to ensure inpatients on visual observations are reviewed by a substitute psychiatry medical officer when their treating team is unexpectedly absent due to sick leave
Review the visual observations process to determine when the number of patients on observations becomes unmanageable/unsafe and requires escalation
Update visual observations documentation to clearly state whether the ward was locked and to indicate specific visual observation orders currently in effect
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