hypoxic-ischaemic encephalopathy following laparoscopic bariatric surgery with iatrogenic spleen and liver damage on a background of ischaemic heart disease, obesity and obstructive sleep apnoea
AI-generated summary
Andrea Lambropoulos, a 34-year-old man with morbid obesity, sleep apnoea, and ischaemic heart disease, died following sleeve gastrectomy. He was admitted to HDU rather than ICU post-operatively. In HDU, he experienced repeated episodes of low oxygen saturation (33 alarms over 40 minutes including 3 crisis alarms) due to sleep apnoea and post-operative narcotic effects. Despite clear monitoring data, nursing staff failed to respond appropriately to alarms, assuming false readings due to probe displacement. The coroner found the death was preventable through proper nursing care, early MET escalation, and appropriate alarm response. Key clinical lessons: (1) understand pulse oximetry reliability by checking plethysmograph waveforms rather than assuming false readings; (2) respond promptly to all desaturation alarms in post-operative patients with sleep apnoea; (3) escalate early to MET/ICU when desaturation patterns indicate inadequate oxygenation.
AI-generated summary and tagging — may contain inaccuracies; refer to original finding for legal purposes. Report an inaccuracy.
unrecognised sleep apnoea in post-operative period
post-operative narcotic pain relief contributing to respiratory depression
staff assumption that low oxygen readings were artefactual
failure to check plethysmograph waveform to verify readings
delayed escalation to MET/ICU
inadequate monitoring - no ECG monitoring despite risk factors
incomplete handover of clinical concerns from recovery room to HDU nursing staff
Coroner's recommendations
The Minister of Health should ensure that nursing staff throughout South Australia receive refresher training in proper use of pulse oximetry monitoring equipment
Training should include instruction that low readings should not be wrongly assumed to be erroneous
Training should emphasise proper use of plethysmograph waveform in determining reliability of SpO2 data shown on monitor
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