Very low cerebral blood volume predicts parenchymal hematoma in acute ischemic stroke

Laure Hermitte, Tae-Hee Cho, Brice Ozenne, Norbert Nighoghossian, Irene Klærke Mikkelsen, Lars Ribe, Jean-Claude Baron, Leif Østergaard, Laurent Derex, Niels Hjort, Jens Fiehler, Salvador Pedraza, Marc Hermier, Delphine Maucort-Boulch, Yves Berthezène

28 Citations (Scopus)

Abstract

BACKGROUND AND PURPOSE: Parenchymal hematoma (PH) may worsen the outcome of patients with stroke. The aim of our study was to confirm the relationship between the volume of very low cerebral blood volume (CBV) and PH using a European multicenter database (I-KNOW). A secondary objective was to explore the impact of early reperfusion and recanalization.

METHODS: The volume of cerebral tissue with CBV≤2.5th percentile of the normal hemisphere was calculated within the acute diffusion-weighted imaging lesion. Hemorrhagic transformation was assessed on day 2 MRI according to the European Cooperative Acute Stroke Study II criteria. Recanalization and reperfusion were assessed on 3-hour follow-up MRI.

RESULTS: Of the 110 patients, hemorrhagic transformation occurred in 59 patients, including 7 PH. In univariate analysis, the acute National Institutes of Health Stroke Scale score (P=0.002), acute diffusion-weighted imaging lesion volume (P=0.02), and thrombolysis (P=0.03), but not very low CBV (P=0.52), were associated with hemorrhagic transformation. The volume of very low CBV was the only predictor of PH (P=0.007). Early reperfusion and recanalization had no influence on either hemorrhagic transformation or PH.

CONCLUSION: Very low CBV was the only independent predictor of PH in patients with acute stroke.

Original languageEnglish
JournalStroke
Volume44
Issue number8
Pages (from-to)2318-20
Number of pages3
ISSN0039-2499
DOIs
Publication statusPublished - Aug 2013

Keywords

  • Acute Disease
  • Aged
  • Aged, 80 and over
  • Blood Volume
  • Brain Ischemia
  • Cerebrovascular Circulation
  • Cohort Studies
  • Diffusion Magnetic Resonance Imaging
  • Europe
  • Female
  • Hematoma
  • Humans
  • Male
  • Middle Aged
  • Predictive Value of Tests
  • Registries
  • Reperfusion
  • Severity of Illness Index
  • Stroke
  • Time Factors
  • Treatment Outcome
  • Journal Article
  • Research Support, Non-U.S. Gov't

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