当前位置： SCI文献检索 > STROKE期刊下所有文献 > Increased body iron stores are associated with poor outcome after thrombolytic treatment in acute stroke.

Increased body iron stores are associated with poor outcome after thrombolytic treatment in acute stroke.

Abstract：

BACKGROUND AND PURPOSE:Iron overload has been associated with greater oxidative stress and brain injury in experimental cerebral ischemia and reperfusion. This study investigates whether high serum ferritin levels, as an index of increased cellular iron stores, are associated with poor outcome, hemorrhagic transformation, and brain edema after treatment with tissue plasminogen activator in patients with acute ischemic stroke. METHODS:A total of 134 consecutive patients treated with intravenous tissue plasminogen activator were prospectively studied in four centers. Serum ferritin levels were determined at baseline, 24 and 72 hours after treatment. Cranial computed tomography was performed on admission and at 24 to 36 hours after tissue plasminogen activator infusion. Stroke severity and outcome were evaluated by using the National Institute of Health Stroke Scale and the modified Rankin Scale. RESULTS:Computed tomography showed hemorrhagic transformation in 27 patients (hemorrhagic infarction in 15 and parenchymal hematoma in 12; symptomatic in four) and brain swelling with midline shift in 15. Poor outcome (modified Rankin Scale >2) at 90 days was observed in 54.5% of patients. Ferritin levels at baseline were higher in patients with poor outcome at 90 days (median [quartiles], 165 [98,307] versus 17 [12,37] ng/mL; P<0.001) and in those who developed parenchymal hematoma (P=0.006), symptomatic hemorrhagic transformation (P=0.008), and severe brain edema (P<0.001). Serum ferritin levels higher than 79 ng/mL before tissue plasminogen activator treatment were independently associated with poor outcome (OR, 117 [95% CI, 25 to 557]). CONCLUSIONS:Increased body iron stores are associated with poor outcome, symptomatic hemorrhagic transformation, and severe edema in patients treated with tissue plasminogen activator after ischemic stroke. These findings suggest that iron overload may offset the beneficial effect of thrombolytic therapies.

journal_name

Stroke

journal_title

Stroke

authors

Millan M,Sobrino T,Castellanos M,Nombela F,Arenillas JF,Riva E,Cristobo I,García MM,Vivancos J,Serena J,Moro MA,Castillo J,Dávalos A

doi

10.1161/01.STR.0000251798.25803.e0

subject

Has Abstract

pub_date

2007-01-01 00:00:00

pages

90-5

issue

eissn

0039-2499

issn

1524-4628

pii

01.STR.0000251798.25803.e0

journal_volume

pub_type

杂志文章,多中心研究

在线工具

Increased body iron stores are associated with poor outcome after thrombolytic treatment in acute stroke.