The study investigates the effect of plasma myeloperoxidase (MPO) concentrations on HDL dysfunction during the acute stage of ischemic and haemorrhagic strokes.

MRI or CT scan are used to confirm the diagnosis of haemorrhagic, ischemic and mimick stroke.

Plasma anf HDL-MPO concentrations, as well as potent HDL dysfunction, are compared in the 3 cases.

The investigators hypothesis is that MPO concentrations and subsequent HDL dysfunction could be higher in ischemic strokes than in haemorrhagic ones. MPO could be a examined as a potent marker of early stage of ischemic stroke.

Plasma MPO levels could also be discriminant regarding the mimick strokes in patient exhibiting stroke clinical picture.

Inclusion Criteria:

Patients with less than 12 hours stroke clinical signs:

• hemiparesis or hemiplegia
• unilateral sensitivity disorder
• language impairment
• balance disorder
• dizziness, bilateral or monocular vision totally or partially lost

Exclusion Criteria:

• Pregnancy
• head trauma since the last 3 months
• stroke since the last 3 months
• myocardial infarction since the last 3 months
• patient disagrees to be enrolled in the study

Adult patients with clinical picture of early stage of stroke with the first signed lasting for less than 12 hours