Early Achievement of Blood Pressure Lowering and Hematoma Growth in Acute Intracerebral Hemorrhage: Stroke Acute Management with Urgent Risk-Factor Assessment and Improvement-Intracerebral Hemorrhage Study

2018 ◽  
Vol 46 (3-4) ◽  
pp. 116-122
Author(s):  
Yoshitaka Yamaguchi ◽  
Masatoshi Koga ◽  
Shoichiro Sato ◽  
Hiroshi Yamagami ◽  
Kenichi Todo ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Risk Factor ◽  
Intracerebral Hemorrhage ◽  
Acute Management ◽  
Acute Hypertension ◽  
Risk Factor Assessment ◽  
Significant Difference ◽  
Pressure Lowering ◽  
Hematoma Growth ◽  
Multicenter Prospective Observational Study

Background: Previous studies have revealed that hematoma growth mainly occurs during the first 6 h after the onset of spontaneous intracerebral hemorrhage (ICH). Early lowering of blood pressure (BP) may be beneficial for preventing hematoma growth. However, relationships between timing of BP lowering and hematoma growth in ICH remain unclear. We investigated associations between timing of BP lowering and hematoma growth for ICH. Methods: The Stroke Acute Management with Urgent Risk-factor Assessment and Improvement (SAMURAI)-ICH Study was a multicenter, prospective, observational study investigating the safety and feasibility of early (within 3 h from onset) reduction of systolic BP (SBP) to < 160 mm Hg with intravenous nicardipine for acute hypertension in cases of spontaneous ICH. The present study was a post hoc analysis of the SAMURAI-ICH study. We examined relationships between time from onset, imaging, and initiation of treatment to target SBP achievement and hematoma growth (absolute growth ≥6 mL) in ICH patients. Target SBP achievement was defined as the time at which SBP first became < 160 mm Hg. Results: Among 211 patients, hematoma growth was seen in 31 patients (14.7%). The time from imaging to target SBP and time from treatment to target SBP were significantly shorter in patients without hematoma growth than in those with (p = 0.043 and p = 0.032 respectively), whereas no significant difference was seen in time from onset to SBP < 160 mm Hg between groups (p = 0.177). Patients in the lower quartiles of time from imaging to target SBP and time from treatment to target SBP showed lower incidences of hematoma growth (p trend = 0.023 and 0.037 respectively). The lowest quartile of time from imaging to target SBP (< 38 min) was negatively associated with hematoma growth on multivariable logistic regression (OR 0.182; 95% CI 0.038–0.867; p = 0.032). Conclusions: Early achievement of target SBP < 160 mm Hg is associated with a lower risk of hematoma growth in ICH.

Abstract WP347: Early Achievement of Blood Pressure Lowering on Hematoma Growth in Hyperacute Intracerebral Hemorrhage: the SAMURAI-ICH Study

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Yoshitaka Yamaguchi ◽  
Masatoshi Koga ◽  
Kenichi Todo ◽  
Shoichiro Sato ◽  
Hiroshi Yamagami ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Intracerebral Hemorrhage ◽  
Antihypertensive Treatment ◽  
Blood Pressure Lowering ◽  
Acute Hypertension ◽  
Negatively Associated ◽  
Significant Difference ◽  
Pressure Lowering ◽  
Hematoma Growth ◽  
Multicenter Prospective Observational Study

Background: Little has been investigated about associations between timing of blood pressure lowering and clinical outcome of intracerebral hemorrhage (ICH). Methods: The Stroke Acute Management with Urgent Risk-factor Assessment and Improvement (SAMURAI)-ICH Study is a multicenter, prospective, observational study investigating the safety and feasibility of early (within 3 hours from symptom onset) systolic blood pressure (SBP) reduction to less than 160 mmHg with intravenous nicardipine for acute hypertension in patients with spontaneous ICH. We retrospectively examined the relationship between time from onset, CT imaging, and initiation of antihypertensive treatment to target SBP achievement and hematoma growth in ICH patients. Hematoma growth was defined as an absolute growth of ≥ 6 ml from baseline to second imaging at 24 (±6) hours after the initiation of antihypertensive treatment. Results: Among 211 patients (81 women (38.4%), mean age 66 years), mean baseline hematoma volume was 13 ml and hematoma growth was seen in 36 (17.1%) patients. Time from image to target SBP and time from treatment to target SBP were significantly shorter in patients without hematoma growth than those with ( P = 0.043 and P = 0.032, respectively), whereas there was not significant difference in time from onset to target SBP between the two groups ( P = 0.177). Lower quartiles of time from image to target SBP and time from treatment to target SBP had lower incidences of hematoma growth (P trend = 0.023 and 0.037, respectively, Cochran-Armitage test), whereas there was not significant trend in time from onset to target SBP ( P = 0.074). The lowest quartile of time from image to target SBP was negatively associated with hematoma growth on multivariate logistic regression (odds ratio 0.182, 95% confidential interval 0.038-0.867, P = 0.032). Conclusions: Early achievement to target SBP <160 mmHg was negatively associated with hematoma growth in ICH patients.

scholarly journals Earlier Blood Pressure-Lowering and Greater Attenuation of Hematoma Growth in Acute Intracerebral Hemorrhage

Stroke ◽  
2012 ◽  
Vol 43 (8) ◽  
pp. 2236-2238 ◽  
Author(s):  
Hisatomi Arima ◽  
Yining Huang ◽  
Ji Guang Wang ◽  
Emma Heeley ◽  
Candice Delcourt ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Intracerebral Hemorrhage ◽  
Blood Pressure Lowering ◽  
Pressure Lowering ◽  
Hematoma Growth ◽  
Acute Intracerebral Hemorrhage

scholarly journals Clinical Strategies Against Early Hematoma Expansion Following Intracerebral Hemorrhage

2021 ◽  
Vol 15 ◽  
Author(s):  
Kanta Tanaka ◽  
Kazunori Toyoda
Keyword(s):  
Blood Pressure ◽  
Intracerebral Hemorrhage ◽  
Stroke Onset ◽  
Factor Vii ◽  
Hematoma Expansion ◽  
Thrombin Inhibitor ◽  
Small Magnitude ◽  
Hematoma Enlargement ◽  
Significant Difference ◽  
Hematoma Growth

Hematoma volume is the strongest predictor of morbidity and mortality after intracerebral hemorrhage. Protection against early hematoma growth is therefore the mainstay of therapeutic intervention for acute intracerebral hemorrhage, but the current armamentarium is restricted to early blood pressure lowering and emergent reversal for anticoagulant agents. Although intensive lowering of systolic blood pressure to &lt;140 mmHg appears likely to prevent hematoma growth, two recent randomized trials, INTERACT-2 and ATACH-2, demonstrated non-significant trends of reduced hematoma enlargement by intensive blood pressure control, with only a small magnitude of benefit or no benefit for clinical outcomes. While oral anticoagulants can be immediately reversed by prothrombin complex concentrate, or the newly developed idarucizumab for direct thrombin inhibitor or andexanet for factor Xa inhibitors, the situation regarding reversal of antiplatelet agents is not yet quite as advanced. However, considering at most the approximately 10% rate of anticoagulant use among patients with intracerebral hemorrhage, what is most essential for patients with intracerebral hemorrhage in general is early hemostatic therapy. Tranexamic acid may safely reduce hematoma expansion, but its hemostatic effect was insufficient to be translated into improved functional outcomes in the TICH-2 randomized trial with 2,325 participants. In this context, recombinant activated factor VII (rFVIIa) is a candidate to be added to the armory against hematoma enlargement. The FAST, a phase 3 trial that compared doses of 80 and 20 μg/kg rFVIIa with placebo in 841 patients within 4 h after the stroke onset, showed a significant reduction in hematoma growth with rFVIIa treatment, but demonstrated no significant difference in the proportion of patients with severe disability or death. However, a post hoc analysis of the FAST trial suggested a benefit of rFVIIa in a target subgroup of younger patients without extensive bleeding at baseline when treated earlier after stroke onset. The FASTEST trial is now being prepared to determine this potential benefit of rFVIIa, reflecting the pressing need to develop therapeutic strategies against hematoma enlargement, a powerful but modifiable prognostic factor in patients with intracerebral hemorrhage.

scholarly journals Degree and Timing of Intensive Blood Pressure Lowering on Hematoma Growth in Intracerebral Hemorrhage

Stroke ◽  
2016 ◽  
Vol 47 (6) ◽  
pp. 1651-1653 ◽  
Author(s):  
Cheryl Carcel ◽  
Xia Wang ◽  
Shoichiro Sato ◽  
Christian Stapf ◽  
Else Charlotte Sandset ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Intracerebral Hemorrhage ◽  
Blood Pressure Lowering ◽  
Pressure Lowering ◽  
Hematoma Growth ◽  
Intensive Blood Pressure

scholarly journals Early Blood Pressure Lowering Does Not Reduce Growth of Intraventricular Hemorrhage following Acute Intracerebral Hemorrhage: Results of the INTERACT Studies

2016 ◽  
Vol 6 (3) ◽  
pp. 71-75 ◽  
Author(s):  
Edward Chan ◽  
Craig S. Anderson ◽  
Xia Wang ◽  
Hisatomi Arima ◽  
Anubhav Saxena ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Intracerebral Hemorrhage ◽  
Intraventricular Hemorrhage ◽  
Blood Pressure Reduction ◽  
Analysis Of Covariance ◽  
Significant Difference ◽  
Pressure Lowering ◽  
Acute Intracerebral Hemorrhage ◽  
Growth Methods ◽  
Intensive Blood Pressure

Background: Intraventricular hemorrhage (IVH) extension is common following acute intracerebral hemorrhage (ICH) and is associated with poor prognosis. Aim: To determine whether intensive blood pressure (BP)-lowering therapy reduces IVH growth. Methods: Pooled analyses of the Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trials (INTERACT1 and INTERACT2) computed tomography (CT) substudies; multicenter, open, controlled, randomized trials of patients with acute spontaneous ICH and elevated systolic BP, randomly assigned to intensive (<140 mm Hg) or guideline-based (<180 mm Hg) BP management. Participants had blinded central analyses of baseline and 24-hour CT. Association of BP lowering to IVH growth was assessed in analysis of covariance. Results: There was no significant difference in adjusted mean IVH growth following intensive (n = 228) compared to guideline-recommended (n = 228) BP treatment (1.6 versus 2.2 ml, respectively; p = 0.56). Adjusted mean IVH growth was nonsignificantly greater in patients with a mean achieved systolic BP ≥160 mm Hg over 24 h (3.94 ml; p trend = 0.26). Conclusions: Early intensive BP-lowering treatment had no clear effect on IVH in acute ICH.

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