Partial Anterior Circulation Infarct

Partial Anterior Circulation Infarct (PACI) is a type of cerebral infarction affecting part of the anterior circulation supplying one side of the brain.

Partial Anterior Circulation Stroke Syndrome (PACS) refers to the symptoms of a patient who clinically appears to have suffered from a partial anterior circulation infarct, but who has not yet had any diagnostic imaging (e.g. CT Scan) to confirm the diagnosis.

It is diagnosed by any one of the following

  • 2 out of 3 features of
    • Higher dysfunction
      • Dysphasia
      • Visuospatial disturbances
    • Homonymous hemianopia
    • Motor and Sensory Defects (>2/3 of face, arm, leg)
  • Higher dysfunction alone
  • Partial Motor or Sensory Defect

If all of the above symptoms are present, a Total Anterior Circulation Infarct is more likely.

For more information, see stroke.

CNS disease, Vascular disease: Cerebrovascular diseases (G45–G46 and I60–I69, 430–438)
Brain ischemia/
cerebral infarction
(ischemic stroke/TIA)
TACI, PACI
  • precerebral: Carotid artery stenosis
  • cerebral: MCA
  • ACA
  • Amaurosis fugax
  • Moyamoya disease
POCI
  • precerebral: Anterior spinal artery syndrome
  • Vertebrobasilar insufficiency
    • Subclavian steal syndrome
  • brainstem: medulla
    • Medial medullary syndrome
    • Lateral medullary syndrome
  • pons
    • Medial pontine syndrome/Foville's
    • Lateral pontine syndrome/Millard-Gubler
  • midbrain
    • Weber's
    • Benedikt
    • Claude's
  • cerebral: PCA
  • Lacunar stroke
  • Dejerine–Roussy syndrome
  • cerebellar
General
  • cerebral: Cerebral venous sinus thrombosis
  • CADASIL
  • Binswanger's disease
  • Transient global amnesia
Intracranial hemorrhage
(hemorrhagic stroke)
Extra-axial
  • Epidural
  • Subdural
  • Subarachnoid
Cerebral/Intra-axial
  • Intraventricular
Brainstem
  • Duret haemorrhage
Aneurysm
  • Cerebral aneurysm
    • Intracranial berry aneurysm
    • Charcot-Bouchard aneurysm
Other/general
  • Cerebral vasculitis

M: CNS

anat (n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco (m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug (N1A/2AB/C/3/4/7A/B/C/D)

M: VAS

anat (a:h/u/t/a/l,v:h/u/t/a/l)/phys/devp/cell/prot

noco/syva/cong/lyvd/tumr, sysi/epon, injr

proc, drug (C2s+n/3/4/5/7/8/9)

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