Coronial
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Coroner's Finding: Ham, Roderick David Charles

Deceased

Roderick David Charles Ham

Demographics

59y, male

Date of death

2016-10-01

Finding date

2019-04-16

Cause of death

pulmonary thromboemboli due to deep vein thrombosis following right hip replacement

AI-generated summary

A 59-year-old man died from pulmonary thromboembolism following right hip replacement surgery. He had mild polycythaemia and elevated BMI (33.26), both risk factors for deep vein thrombosis. Pre-operatively he was classified as low-risk and received standard thromboprophylaxis (anti-embolic boots, aspirin, early mobilisation). However, an experienced orthopaedic review suggested his polycythaemia and BMI warranted high-risk classification with additional anticoagulation (e.g. warfarin). Additionally, his enoxaparin dose was reduced from 100mg to 70mg twice-daily on day 5 without clear clinical justification, potentially contributing to under-anticoagulation. While the surgeon's initial risk assessment was not unreasonable under 2016 guidelines, clinicians should carefully evaluate cumulative thrombotic risk factors and maintain appropriate anticoagulation dosing in post-operative hip replacement patients.

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Specialties

orthopaedic surgeryanaesthesiacardiologyrespiratory medicineintensive care

Error types

diagnosticmedication

Drugs involved

aspirinenoxaparinalteplaseunfractionated heparin

Clinical conditions

pulmonary embolismdeep vein thrombosispolycythaemiaobesityright heart dysfunction

Procedures

right hip replacement

Contributing factors

  • polycythaemia (hypercoagulable state) not weighted sufficiently in pre-operative risk assessment
  • elevated BMI (33.26) at borderline threshold for increased risk
  • reduction of enoxaparin dose from 100mg to 70mg twice-daily without clear clinical justification despite ongoing thrombotic risk
  • possible under-classification of thrombotic risk as 'low-risk' despite presence of two cumulative risk factors
Full text

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