The speed of ultraearly hematoma growth in acute intracerebral hemorrhage

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dc.contributor.authorSato, Shoichiro
dc.contributor.authorArima, Hisatomi
dc.contributor.authorHirakawa, Yoichiro
dc.contributor.authorHeeley, Emma
dc.contributor.authorDelcourt, Candice
dc.contributor.authorBeer, Ronny
dc.contributor.authorLi, Yuechun
dc.contributor.authorZhang, Jingfen
dc.contributor.authorJüettler, Eric
dc.contributor.authorWang, Jiguang
dc.contributor.authorLavados, Pablo
dc.contributor.authorRobinson, Thompson
dc.contributor.authorLindley, Richard
dc.contributor.authorChalmers, John
dc.contributor.authorAnderson, Craig
dc.date.accessioned2017-03-14T19:59:10Z
dc.date.available2017-03-14T19:59:10Z
dc.date.issued2014
dc.description.abstractObjective: The prognostic importance of the speed of early hematoma growth in acute intracerebral hemorrhage (ICH) has not been well established. We aimed to determine the association between the rate of increase in hematoma volume and major clinical outcomes in the Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial (INTERACT) studies. The effects of early intensive blood pressure (BP) lowering according to the speed of hematoma growth were also investigated. Methods: Pooled analyses of the INTERACT1 (n = 404) and INTERACT2 (n = 2,839) studies—randomized controlled trials of patients with spontaneous ICH with elevated systolic BP, randomly assigned to intensive (target systolic BP <140 mm Hg) or guideline-based (<180 mm Hg) BP management. The speed of ultraearly hematoma growth (UHG) was defined as hematoma volume (mL)/onset-to-CT time (hours). Primary outcome was death or major disability (modified Rankin Scale score of 3–6) at 90 days. Results: Among a total of 2,909 patients (90%) with information on UHG and outcome, median speed of UHG was 6.2 mL/h. There was a linear association between UHG and outcome: multivariable-adjusted odd ratios 1.90 (95% confidence interval 1.50–2.39) for 5–10 mL/h and 2.96 (2.36–3.71) for >10 mL/h vs the <5 mL/h group. There were no clear differences in the effects of intensive BP lowering according to 3 speeds of UHG on outcome (p = 0.75 for homogeneity). Conclusions: The speed of UHG in patients with ICH was continuously associated with increased risks of death or major disability, and from lower levels than previously reported (≥5 mL/h). The benefits of intensive BP lowering appear to be independent of the speed of bleeding.
dc.format.extent7
dc.identifier.citationNeurology. 2014 Dec 9; 83(24): 2232–2238.
dc.identifier.urihttp://hdl.handle.net/11447/1029
dc.identifier.urihttp://dx.doi.org/10.1212/WNL.0000000000001076
dc.language.isoen_US
dc.publisherAmerican Academy of Neurology
dc.subjectBlood Pressure/physiology
dc.subjectCerebral Hemorrhage/physiopathology
dc.subjectHematoma/pathology
dc.subjectPrognosis
dc.titleThe speed of ultraearly hematoma growth in acute intracerebral hemorrhage
dc.typeArtículo

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