Tom J Moullaali1, Shoichiro Sato1, Xia Wang1,2, Alejandro A Rabinstein3, Hisatomi Arima1,2,4, Cheryl Carcel1, Guofang Chen5, Thompson Robinson6, Emma Heeley1,2, Edward Chan1,2, Candice Delcourt1,2,7, Christian Stapf8,9, Charlotte Cordonnier10, Richard I Lindley1,2,11, John Chalmers1,2, Craig S Anderson1,2,7. 1. The George Institute for Global Health, Sydney, Australia. 2. Sydney Medical School, The University of Sydney, Sydney, Australia. 3. Department of Neurology, Mayo Clinic, Rochester, Minnesota, USA. 4. Center for Epidemiologic Research in Asia, Shiga University of Medical Sciences, Shiga, Japan. 5. Department of Neurology, Xuzhou Central Hospital, Jiangsu, China. 6. Department of Cardiovascular Sciences and NIHR Biomedical Research Unit for Cardiovascular Diseases, University of Leicester, Leicester, UK. 7. Neurology Department, Royal Prince Alfred Hospital, Sydney, Australia. 8. Department of Neurology, CRCHUM, APHP-Hôpital Lariboisière, Paris, France. 9. Département de Neurosciences, Université de Montréal, Montréal, Quebec, Canada. 10. University of Lille, CHRU, INSERM U 1171, Lille, France. 11. Westmead Hospital Clinical School, Sydney, Australia.
Abstract
BACKGROUND AND PURPOSE: Intraventricular extension of intracerebral haemorrhage (ICH) predicts poor outcome, but the significance of delayed intraventricular haemorrhage (dIVH) is less well defined. We determined the prognostic significance of dIVH in the Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage Trials (INTERACT 1 and 2). METHODS: Pooled analyses of the INTERACT CT substudies-international, multicentre, prospective, open, blinded end point, randomised controlled trials of patients with acute spontaneous ICH and elevated systolic blood pressure (SBP)-randomly assigned to intensive (<140 mm Hg) or guideline-based (<180 mm Hg) SBP management. Participants had blinded central analyses of baseline and 24 h CTs, with dIVH defined as new intraventricular haemorrhage (IVH) on the latter scan. Outcomes of death and major disability were defined by modified Rankin Scale scores at 90 days. RESULTS: There were 349 (27%) of 1310 patients with baseline IVH, and 107 (11%) of 961 initially IVH-free patients who developed dIVH. Significant associations of dIVH were prior warfarin anticoagulation, high (≥15) baseline National Institutes of Health Stroke Scale score, larger (≥15 mL) ICH volume, greater ICH growth and higher achieved SBP over 24 h. Compared with those who were IVH-free, dIVH had greater odds of 90-day death or major disability versus initial IVH (adjusted ORs 2.84 (95% CI 1.52 to 5.28) and 1.87 (1.36 to 2.56), respectively (p trend <0.0001)). CONCLUSIONS: Although linked to factors determining greater ICH growth including poor SBP control, dIVH is independently associated with poor outcome in acute small to moderate-size ICH. TRIAL REGISTRATION NUMBERS: NCT00226096 and NCT00716079. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.
BACKGROUND AND PURPOSE: Intraventricular extension of intracerebral haemorrhage (ICH) predicts poor outcome, but the significance of delayed intraventricular haemorrhage (dIVH) is less well defined. We determined the prognostic significance of dIVH in the Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage Trials (INTERACT 1 and 2). METHODS: Pooled analyses of the INTERACT CT substudies-international, multicentre, prospective, open, blinded end point, randomised controlled trials of patients with acute spontaneous ICH and elevated systolic blood pressure (SBP)-randomly assigned to intensive (<140 mm Hg) or guideline-based (<180 mm Hg) SBP management. Participants had blinded central analyses of baseline and 24 h CTs, with dIVH defined as new intraventricular haemorrhage (IVH) on the latter scan. Outcomes of death and major disability were defined by modified Rankin Scale scores at 90 days. RESULTS: There were 349 (27%) of 1310 patients with baseline IVH, and 107 (11%) of 961 initially IVH-free patients who developed dIVH. Significant associations of dIVH were prior warfarin anticoagulation, high (≥15) baseline National Institutes of Health Stroke Scale score, larger (≥15 mL) ICH volume, greater ICH growth and higher achieved SBP over 24 h. Compared with those who were IVH-free, dIVH had greater odds of 90-day death or major disability versus initial IVH (adjusted ORs 2.84 (95% CI 1.52 to 5.28) and 1.87 (1.36 to 2.56), respectively (p trend <0.0001)). CONCLUSIONS: Although linked to factors determining greater ICH growth including poor SBP control, dIVH is independently associated with poor outcome in acute small to moderate-size ICH. TRIAL REGISTRATION NUMBERS: NCT00226096 and NCT00716079. Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://www.bmj.com/company/products-services/rights-and-licensing/.
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