- Trisha Greenhalgh: Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK. ORCID
BACKGROUND: Evidence-based medicine is the application of research findings to inform individual clinical decisions. There is a tension-both philosophical and practical-between the average result from a population study and the circumstances and needs of an individual patient. This personal account of "evidence-based" trauma care illustrates and explores this tension.
THE CASE: The author, a keen athlete, describes her experience of a high-impact cycle accident that led to limb fractures (which were diagnosed and treated according to evidence-based guidelines) and also an occult injury to the cervical spine (which was not diagnosed at the time). Some evidence-based guidelines are reviewed and applied to the case. The clinical record described the cycle accident as a "fall." Initial assessment directed the clinicians' gaze to the obvious injuries, whose treatment was straightforward. On admission, the patient (aged 55 years at the time) was offered "falls prevention" via a guideline-based checklist. Several months later, neurological sequelae indicated possible damage to the cervical spine. But the NICE Guideline recommending cervical spine imaging in cases of high-impact trauma had not been considered-perhaps because the clinical narrative had been prematurely assigned to the script of "older person with fall." Furthermore, the author, who was (appropriately) treated with neurosurgery, was surprised at the response of clinical colleagues, based on application of an irrelevant section of a guideline, that her cervical discectomy was "nonevidence based." Nonsteroidal anti-inflammatory drugs for postoperative pain were indicated in this patient even though they were not recommended for the average patient.
CONCLUSION: As Sir John Grimley Evans' warned, we should avoid using evidence-based guidelines in the manner of the fabled drunkard who searched under the lamp post for his key because that was where the light was, even though he knew he had lost his key somewhere else.