• B R Tulloh.
• Preston and Northcote Community Hospital, Melbourne, Victoria, Australia.
• Injury. 1994 May 1; 25 (4): 231-4.

AbstractRecords of 197 patients admitted to hospital with head injury were studied retrospectively to assess the influence of altered conscious state on injury misdiagnosis in the Emergency department (ED). Diagnostic errors were identified by discrepancies between an initial Injury Severity Score (ISS) calculated according to injuries diagnosed in the ED and a final ISS based on diagnoses confirmed on discharge from hospital, or death. The Glasgow Coma Scale (GCS) was used to assess neurological status. ISS discrepancies were present in 56 patients (29 per cent). These discrepancies arose because of: (i) failure of interpretation of radiographs; (ii) inadequate clinical examination; and (iii) inaccurate injury description in the ED notes. The risk of injury misdiagnosis was greatest for thoracic, abdominal and spinal injury, followed in descending order by extremity (limb), head, and external (skin and subcutaneous) injury. Although there was no linear correlation between GCS and ISS discrepancy rate, ISS discrepancies were significantly more frequent in comatose patients that in non-comatose patients (chi 2 = 3.69, 1 df; P < 0.05). Individual staff performance is at least as important as head injury severity in determining diagnostic accuracy on initial assessment in the ED.

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