The easiest way to use the Bamford classification is to look for the presence or absence of the four main features of stroke described above
The type of stroke is then coded by adding a final letter to the above after the CT scan has shown the cause
Introduction
Anterior vs Posterior Circulation
Classification
Summary table
Stroke Type Infarct(I) Haemorrhage (H) Stroke (S) Weakness /sensory loss face, arm and leg Homonymous Hemianopia Higher centres Vertigo, dysphagia, diplopia, cerebellar signs Notes Vascular Supply Frequency Fatality at 6 months Dead/Dependent (Rankin 3-6) at 6 months Total anterior circulation TAC/S/H/I Must have weakness/sensory loss Must Have hemianopia Must have Dysphasia or Neglect No Needs all 3. Large cortical stroke in MCA/ACA areas. 20% 56% 96% Partial anterior circulation PAC/S/H/I May have weakness/sensory loss May Have hemianopia Must have Dysphasia or Neglect No Needs 2 out of 3. Smaller cortical stroke in MCA/ACA areas 35% 10% 45% Lacunar stroke LAC/S/H/I Must have either pure motor/pure sensory/ataxic hemiparesis No No May have if pontine lacunar Subcortical/pontine stroke Lenticulostriate or pontine perforators 25% 7% 34% Posterior circulation POC/S/H/I May have weakness/sensory loss May Have hemianopia No dysphasia/Neglect Yes Cerebellar or brainstem syndromes, coma, isolated homonymous hemianopia Vertebral/Basilar or PCA 25% 14% 32% When talking about stroke side we are talking about the side of the pathology NOT the side with clinical symptoms and signs. A left TACS therefore has Right hemiparesis(weakness), right hemi-sensory loss, right homonymous hemianopia and dysphasia
Assessment
References
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Oxford / Bamford Classification
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