Sidney Brunt, aged 65, died from an acute right subdural haematoma caused by excessive, unmonitored anticoagulation with warfarin. His general practitioner, Dr A., prescribed warfarin for atrial fibrillation but failed to implement any INR monitoring despite understanding this requirement. On presentation with headache and leg pain suggesting intracranial bleeding on 11 November 2005, the examining physician was unaware of warfarinisation and did not order urgent imaging or INR testing. The coroner found Dr A.'s neglect of routine monitoring protocols inexplicable, noting that appropriate monitoring and early detection of the elevated INR level would likely have led to life-saving intervention including anticoagulation reversal and CT imaging.
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Specialties
general practiceemergency medicinegeneral medicinehaematologypathology
CT scan of headINR testingcystoscopyburr hole drainage
Contributing factors
failure to monitor INR levels during warfarin therapy
excessive anticoagulation with INR greater than 10
lack of patient education regarding need for monitoring
delayed recognition of intracranial bleeding on presentation
examining physician unaware of warfarinisation status
inadequate supervision of overseas trained practitioner
poor communication of warfarin status in clinical records
Coroner's recommendations
That the Department of Health, in conjunction with the Medical Board of South Australia, conduct an investigation into the level of knowledge, expertise and experience of overseas trained medical practitioners in respect of warfarin prescription and monitoring, and implement measures to ensure overseas trained practitioners demonstrate satisfactory knowledge before practice
That the Department of Health, in conjunction with the Pharmacy Board of South Australia, give consideration to whether pharmacists filling warfarin prescriptions should impart oral or written information regarding the need for anticoagulation monitoring
That the Department of Health promulgate a brochure containing information on the need for warfarin monitoring, to be made available for distribution by general practitioners to patients
That the management of Port Lincoln Hospital review the efficiency of its after-hours radiographical and radiological services
That the management of Port Lincoln Hospital undertake training of medical practitioner(s) to enable them to perform emergency parietal burr hole procedures
That the management of Port Lincoln Hospital ensure that warfarin or other anticoagulant therapy is displayed prominently in the patient's clinical record and specifically drawn to the attention of the examining medical practitioner
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