Optimal achieved blood pressure in acute intracerebral hemorrhage: INTERACT2
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Optimal achieved blood pressure in acute intracerebral hemorrhage: INTERACT2. / Arima, Hisatomi; Heeley, Emma; Delcourt, Candice; Hirakawa, Yoichiro; Wang, Xia; Woodward, Mark; Robinson, Thompson; Stapf, Christian; Parsons, Mark; Lavados, Pablo M; Huang, Yining; Wang, Jiguang; Chalmers, John; Anderson, Craig S; INTERACT2 investigators.
In: NEUROLOGY, Vol. 84, No. 5, 03.02.2015, p. 464-71.Research output: SCORING: Contribution to journal › SCORING: Journal article › Research › peer-review
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TY - JOUR
T1 - Optimal achieved blood pressure in acute intracerebral hemorrhage: INTERACT2
AU - Arima, Hisatomi
AU - Heeley, Emma
AU - Delcourt, Candice
AU - Hirakawa, Yoichiro
AU - Wang, Xia
AU - Woodward, Mark
AU - Robinson, Thompson
AU - Stapf, Christian
AU - Parsons, Mark
AU - Lavados, Pablo M
AU - Huang, Yining
AU - Wang, Jiguang
AU - Chalmers, John
AU - Anderson, Craig S
AU - INTERACT2 investigators
AU - Thomalla, Götz
N1 - © 2014 American Academy of Neurology.
PY - 2015/2/3
Y1 - 2015/2/3
N2 - OBJECTIVES: To investigate the effects of intensive blood pressure (BP) lowering according to baseline BP levels and optimal achieved BP levels in patients with acute intracerebral hemorrhage (ICH).METHODS: INTERACT2 was an open, blinded endpoint, randomized controlled trial in 2,839 patients with ICH within 6 hours of onset and elevated systolic BP (SBP) (150-220 mm Hg) who were allocated to receive intensive (target SBP <140 mm Hg within 1 hour, with lower limit of 130 mm Hg for treatment cessation) or guideline-recommended (target SBP <180 mm Hg) BP-lowering treatment. Outcome was physical function across all 7 levels of the modified Rankin Scale at 90 days.RESULTS: Analysis of the randomized comparisons showed that intensive BP lowering produced comparable benefits on physical function at 90 days in 5 subgroups defined by baseline SBP of <160, 160-169, 170-179, 180-189, and ≥190 mm Hg (p homogeneity = 0.790). Analyses of achieved BP showed linear increases in the risk of physical dysfunction for achieved SBP above 130 mm Hg for both hyperacute (1-24 hours) and acute (2-7 days) phases while modest increases were also observed for achieved SBP below 130 mm Hg.CONCLUSIONS: Intensive BP lowering appears beneficial across a wide range of baseline SBP levels, and target SBP level of 130-139 mm Hg is likely to provide maximum benefit in acute ICH.CLASSIFICATION OF EVIDENCE: This study provides Class I evidence that the effect of intensive BP lowering on physical function is not influenced by baseline BP.
AB - OBJECTIVES: To investigate the effects of intensive blood pressure (BP) lowering according to baseline BP levels and optimal achieved BP levels in patients with acute intracerebral hemorrhage (ICH).METHODS: INTERACT2 was an open, blinded endpoint, randomized controlled trial in 2,839 patients with ICH within 6 hours of onset and elevated systolic BP (SBP) (150-220 mm Hg) who were allocated to receive intensive (target SBP <140 mm Hg within 1 hour, with lower limit of 130 mm Hg for treatment cessation) or guideline-recommended (target SBP <180 mm Hg) BP-lowering treatment. Outcome was physical function across all 7 levels of the modified Rankin Scale at 90 days.RESULTS: Analysis of the randomized comparisons showed that intensive BP lowering produced comparable benefits on physical function at 90 days in 5 subgroups defined by baseline SBP of <160, 160-169, 170-179, 180-189, and ≥190 mm Hg (p homogeneity = 0.790). Analyses of achieved BP showed linear increases in the risk of physical dysfunction for achieved SBP above 130 mm Hg for both hyperacute (1-24 hours) and acute (2-7 days) phases while modest increases were also observed for achieved SBP below 130 mm Hg.CONCLUSIONS: Intensive BP lowering appears beneficial across a wide range of baseline SBP levels, and target SBP level of 130-139 mm Hg is likely to provide maximum benefit in acute ICH.CLASSIFICATION OF EVIDENCE: This study provides Class I evidence that the effect of intensive BP lowering on physical function is not influenced by baseline BP.
U2 - 10.1212/WNL.0000000000001205
DO - 10.1212/WNL.0000000000001205
M3 - SCORING: Journal article
C2 - 25552575
VL - 84
SP - 464
EP - 471
JO - NEUROLOGY
JF - NEUROLOGY
SN - 0028-3878
IS - 5
ER -