retroperitoneal haemorrhage due to anticoagulation following right cerebrovascular infarct following intra-arterial cannulation of the right carotid artery
AI-generated summary
A 66-year-old woman died from retroperitoneal haemorrhage following anticoagulation for stroke caused by intra-arterial central venous catheter placement. The catheter was mistakenly inserted into the right carotid artery instead of the jugular vein. Critical failures included: non-recognition of arterial blood on blood gas analysis (5.02am, 17 June), radiologist's failure to identify malposition on chest X-ray, eight-day delay before catheter removal, and delayed recognition of haemorrhagic shock. When haemoglobin dropped from 138 to 71 g/L, staff dismissed this as 'dilutional' despite anticoagulation therapy, failing to consider retroperitoneal haemorrhage. The MET team lacked appropriate consultant input and delayed diagnosis. A four-hour gap occurred between diagnosis of haemorrhagic shock and ICU review. The coroner found the death almost certainly preventable, highlighting serious deficiencies in MET team consultation and supervision.
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Specialties
anaesthesiarehabilitation medicineradiologyintensive careemergency medicine
Error types
diagnosticproceduralcommunicationsystemdelay
Drugs involved
enoxaparin
Clinical conditions
small bowel obstructionpneumoniastrokecerebrovascular infarctretroperitoneal haemorrhagehaemorrhagic shockfibrin sheath formationarterial puncture
Procedures
central venous catheter insertionintra-arterial cannulationpercutaneous inserted central catheter (picc) line insertionblood gas analysisCT angiogram
Contributing factors
intra-arterial catheter placement in carotid artery instead of jugular vein
failure to recognise arterial blood on blood gas analysis
radiologist's failure to identify catheter malposition on chest X-ray
eight-day delay in catheter removal
use of non-standard catheter with smaller diameter
fibrin sheath formation in carotid artery
stroke caused by fibrin embolism
failure to recognise haemorrhagic shock
misinterpretation of haemoglobin drop as dilutional rather than bleeding
inadequate MET team consultation and expertise
four-hour delay between diagnosis of haemorrhagic shock and ICU review
anticoagulation therapy contributing to retroperitoneal bleeding
Coroner's recommendations
Royal Hobart Hospital should initiate a review of the MET team with focus upon consultancy input and supervision
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