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Influence of renal function on blood pressure control and outcome in thrombolyzed patients after acute ischemic stroke: post-hoc analysis of the ENCHANTED trial
(Frontiers Media SA, 2024-12-09)
Xinwen Ren
;
Chen Chen
;
Xia Wang
;
Qiang Li
;
Yang Zhao
<jats:sec><jats:title>Background</jats:title><jats:p>The effect of renal impairment in patients who receive intravenous thrombolysis for acute ischemic stroke (AIS) is unclear. We aimed to determine the associations of renal impairment and clinical outcomes and any modification of the effect of intensive versus guideline-recommended blood pressure (BP) control in the BP arm of the International Enhanced Control of Hypertension and Thrombolysis Stroke Study (ENCHANTED).</jats:p></jats:sec><jats:sec><jats:title>Methods</jats:title><jats:p>We conducted a <jats:italic>post-hoc</jats:italic> analysis of the ENCHANTED BP arm, which involved 2,196 thrombolyzed AIS patients. Logistic regression models were used to define the association between eGFR and clinical outcomes of death, death or major disability [modified Rankin scale (mRS) scores 3–6], and major disability (mRS 3–5) at 90 days.</jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p>Of the 2,151 patients with available baseline renal function data (mean age 66.9 years; 38% women), 993 (46.2%), 822 (38.2%), and 336 (15.6%) had normal (eGFR ≥ 90 mL/min/1.73 m<jats:sup>2</jats:sup>), mildly (60–89), and moderate-to-severely impaired (&lt;60) renal function, respectively. Compared with patients with normal eGFR, mortality was higher in those with moderate-to-severe renal impairment (adjusted odds ratio 1.77, 95% confidence interval 1.05–2.99; <jats:italic>p</jats:italic> = 0.031 for trend). However, the difference in death or major disability (mRS 3–6) was not significant between groups. There was no heterogeneity in the effect of intensive versus guideline-recommended BP-lowering treatment on death by grades of renal function (<jats:italic>p</jats:italic> for interaction = 0.545).</jats:p></jats:sec><jats:sec><jats:title>Discussion</jats:title><jats:p>The presence of moderate-to-severe renal impairment is associated with increased mortality in thrombolyzed patients with AIS. Renal function does not modify the effect of early intensive BP-lowering treatment on death in this patient group.</jats:p></jats:sec>
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Intensive Blood Pressure Lowering and Renal Function in Ischemic Stroke Patients: Secondary Analysis of the ENCHANTED Trial
(2024)
Chen Chen
;
Xinwen Ren
;
Yang Zhao
;
Menglu Ouyang
;
Qiang Li Mbiostat
<jats:p>Introduction: Renal failure is a major safety concern of intensive systolic blood pressure (SBP) lowering. We aimed to determine the effect of this treatment on early change in renal function in participants of the international Enhanced Control of Hypertension and Thrombolysis Stroke Study (ENCHANTED). Methods: Post hoc analysis of the ENCHANTED BP-arm in which thrombolyzed patients with acute ischemic stroke (AIS) were randomized to intensive (target 130–140 mm Hg within 1 h) or guideline-recommended (target &lt;180 mm Hg) management within 6 h of symptom onset. Primary outcome is the early change in renal function, defined by a difference in estimated glomerular filtration rate (∆eGFR = 24 h – baseline eGFR), analyzed using linear regression with adjustment for clinical variables. Key SBP parameters were attained (mean), variability (standard deviation), and magnitude of reduction within 24 h. Results: Of 2,151 participants (mean age 66.9 years; 38% female) included with the available baseline eGFR, there were significant differences in attained 144.3 ± 10.2 versus 149.8 ± 12.0 [Δ5.5 mm Hg]; p &lt; 0.0001), variation (15.1 ± 5.4 vs. 14.0 ± 5.6 mm Hg; p &lt; 0.0001), and magnitude of reduction (44.6 ± 16.2 vs. 38.7 ± 17.6 mm Hg; p &lt; 0.0001) in SBP within 24 h. 1,718 (79.9%) participants with complete follow-up eGFR were included in the primary analysis, and there was no significant difference in ∆eGFR (adjusted mean difference −1.10, 95% confidence interval [CI] −3.14 to −0.94; p = 0.29) between the intensive and guideline groups, respectively. The neutral effect on ∆eGFR was consistent in patients with different baseline eGFR stages and in sensitivity analysis after multiple imputations for missing follow-up eGFR. SBP variability was significantly associated with decreasing ∆eGFR (per 5 mm Hg increase by category: adjusted mean difference −1.35, 95% CI: −2.43 to −0.28; p for trend = 0.01). Conclusion: Intensive SBP lowering with a target of 130–140 mm Hg had no impact on early renal function in thrombolyzed AIS patients. Wide SBP variability was associated with a larger decline in eGFR. </jats:p>
1
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Low blood pressure and adverse outcomes in acute stroke: HeadPoST study explanations
(2020)
Menglu Ouyang
;
MUÑOZ VENTURELLI, PAULA ANDREA
;
Laurent Billot
;
Xia Wang
;
Lili Song
Scopus© Citations 12 1
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Associations of Early Systolic Blood Pressure Control and Outcome After Thrombolysis-Eligible Acute Ischemic Stroke: Results From the ENCHANTED Study
(2022)
Xia Wang
;
Jatinder S. Minhas
;
Tom J. Moullaali
;
Gian Luca Di Tanna
;
Richard I. Lindley
<jats:sec> <jats:title>Background and Purpose:</jats:title> <jats:p>In thrombolysis-eligible patients with acute ischemic stroke, there is uncertainty over the most appropriate systolic blood pressure (SBP) lowering profile that provides an optimal balance of potential benefit (functional recovery) and harm (intracranial hemorrhage). We aimed to determine relationships of SBP parameters and outcomes in thrombolyzed acute ischemic stroke patients.</jats:p> </jats:sec> <jats:sec> <jats:title>Methods:</jats:title> <jats:p>Post hoc analyzes of the ENCHANTED (Enhanced Control of Hypertension and Thrombolysis Stroke Study), a partial-factorial trial of thrombolysis-eligible and treated acute ischemic stroke patients with high SBP (150–180 mm Hg) assigned to low-dose (0.6 mg/kg) or standard-dose (0.9 mg/kg) alteplase and intensive (target SBP, 130–140 mm Hg) or guideline-recommended (target SBP <180 mm Hg) treatment. All patients were followed up for functional status and serious adverse events to 90 days. Logistic regression models were used to analyze 3 SBP summary measures postrandomization: attained (mean), variability (SD) in 1–24 hours, and magnitude of reduction in 1 hour. The primary outcome was a favorable shift on the modified Rankin Scale. The key safety outcome was any intracranial hemorrhage.</jats:p> </jats:sec> <jats:sec> <jats:title>Results:</jats:title> <jats:p> Among 4511 included participants (mean age 67 years, 38% female, 65% Asian) lower attained SBP and smaller SBP variability were associated with favorable shift on the modified Rankin Scale (per 10 mm Hg increase: odds ratio, 0.76 [95% CI, 0.71–0.82]; <jats:italic>P</jats:italic> <0.001 and 0.86 [95% CI, 0.76–0.98]; <jats:italic>P</jats:italic> =0.025) respectively, but not for magnitude of SBP reduction (0.98, [0.93–1.04]; <jats:italic>P</jats:italic> =0.564). Odds of intracranial hemorrhage was associated with higher attained SBP and greater SBP variability (1.18 [1.06–1.31]; <jats:italic>P</jats:italic> =0.002 and 1.34 [1.11–1.62]; <jats:italic>P</jats:italic> =0.002) but not with magnitude of SBP reduction (1.05 [0.98–1.14]; <jats:italic>P</jats:italic> =0.184). </jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions:</jats:title> <jats:p>Attaining early and consistent low levels in SBP <140 mm Hg, even as low as 110 to 120 mm Hg, over 24 hours is associated with better outcomes in thrombolyzed acute ischemic stroke patients.</jats:p> </jats:sec> <jats:sec> <jats:title>Registration:</jats:title> <jats:p> URL: <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://www.clinicaltrials.gov">https://www.clinicaltrials.gov</jats:ext-link> ; Unique identifier: NCT01422616. </jats:p> </jats:sec>
Scopus© Citations 26 3
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Ethnicity and Other Determinants of Quality of Functional Outcome in Acute Ischemic Stroke
(2020)
Xiaoying Chen
;
Xia Wang
;
Candice Delcourt
;
Jingwei Li
;
Hisatomi Arima
<jats:sec> <jats:title>Background and Purpose—</jats:title> <jats:p>Patient-centered outcomes are important. We aimed to determine predictors of health-related quality of life (HRQoL) and develop utility-weighted modified Rankin Scale (mRS) scores in thrombolyzed acute ischemic stroke patients from both arms of ENCHANTED (Enhanced Control of Hypertension and Thrombolysis Stroke Study).</jats:p> </jats:sec> <jats:sec> <jats:title>Methods—</jats:title> <jats:p>ENCHANTED was an international quasi-factorial clinical trial of different doses of intravenous alteplase and intensities of blood pressure control in acute ischemic stroke patients, with outcomes on the 5-Dimensional European Quality of Life Scale and mRS assessed at 90 days post-randomization. Logistic regression models were used to identify baseline predictors of poor HRQoL (≤mean 5-Dimensional European Quality of Life Scale utility scores). Ordinary least squares regression derived utility-weighted mRS scores.</jats:p> </jats:sec> <jats:sec> <jats:title>Results—</jats:title> <jats:p>In 4016 acute ischemic stroke patients with complete 5-Dimensional European Quality of Life Scale and mRS data, independent predictors of poor HRQoL were older age (odds ratio, 1.19 [95% CI, 1.12–1.27], per 10-year increase), non-Asian ethnicity (1.91 [1.61–2.27]), greater stroke severity on the National Institutes of Health Stroke Scale (1.11 [1.09–1.12]), diabetes mellitus (1.41 [1.18–1.69]), premorbid disability (mRS score 1 versus 0; 1.62 [1.33–1.97]), large vessel atheromatous pathogenesis (1.32 [1.12–1.54]), and proxy respondent (2.35 [2.01–2.74]). Sensitivity analyses indicate the ethnicity influence on HRQoL was driven by the high proportion of Chinese (62.9% of Asian) participants with better HRQoL compared with non-Chinese or other Asian groups. Derived utility values across mRS scores 0 to 5 were 0.977, 0.885, 0.748, 0.576, 0.194, and −0.174, respectively. Correlations between mRS and 5-Dimensional European Quality of Life Scale scores were stronger in Asians.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions—</jats:title> <jats:p>HRQoL is worse after thrombolyzed acute ischemic stroke in the elderly, non-Asians, with greater initial severity, diabetes mellitus, premorbid disability, due to large vessel atheroma, and proxy assessment. The broader significance of better HRQoL in Asians is tempered by Chinese participants dominating analyses. From utility-weighted mRS scores indicating the greatest steps in mRS scores are between 5 and 3, treatments to avoid major disability provide the greatest benefits for patients.</jats:p> </jats:sec> <jats:sec> <jats:title>Registration—</jats:title> <jats:p> URL: <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="https://www.clinicaltrials.gov">https://www.clinicaltrials.gov</jats:ext-link> . Unique identifier: NCT01422616. </jats:p> </jats:sec>
6Scopus© Citations 8
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Sex differences in treatment, radiological features and outcome after intracerebral haemorrhage: Pooled analysis of Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage trials 1 and 2
(2020)
Else Charlotte Sandset
;
Xia Wang
;
Cheryl Carcel
;
Shoichiro Sato
;
Candice Delcourt
<jats:sec><jats:title>Introduction</jats:title><jats:p> Reports vary on how sex influences the management and outcome from acute intracerebral haemorrhage. We aimed to quantify sex disparities in clinical characteristics, management, including response to blood pressure lowering treatment, and outcomes in patients with acute intracerebral haemorrhage, through interrogation of two large clinical trial databases. </jats:p></jats:sec><jats:sec><jats:title>Patients and Methods</jats:title><jats:p> Post-hoc pooled analysis of the Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage trials 1 and 2, where patients with a hypertensive response (systolic, 150–220 mmHg) after spontaneous intracerebral haemorrhage (<6 h) were randomised to intensive (target <140 mmHg <1 h) or guideline-recommended (<180 mmHg) blood pressure lowering treatment. The interaction of sex on early haematoma growth (24 h), death or major disability (modified Rankin scale scores 3–6 at 90 days), and effect of randomised treatment were determined in multivariable logistic regression models adjusted for baseline confounding variables. </jats:p></jats:sec><jats:sec><jats:title>Results</jats:title><jats:p> In 3233 participants, 1191 (37%) were women who were significantly older, had higher baseline National Institutes of Health Stroke Scale scores and smaller haematoma volumes compared to men. Men had higher three-month mortality (odds ratio 1.48, 95% confidence interval 1.10–2.00); however, there was no difference between women and men in the combined endpoint of death or major disability. There were no significant sex differences on mean haematoma growth or effect of randomised blood pressure lowering treatment. </jats:p></jats:sec><jats:sec><jats:title>Discussion</jats:title><jats:p> Men included in the Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage trials had more comorbidities, larger baseline haematoma volumes and higher mortality after adjustment for age, as compared with women. </jats:p></jats:sec><jats:sec><jats:title>Conclusion</jats:title><jats:p> Men included in the Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage trials had a greater odds of dying after intracerebral haemorrhage than women, which could not be readily explained by differing casemix or patterns of blood pressure management. </jats:p></jats:sec><jats:sec><jats:title>Clinical trial registration</jats:title><jats:p> The Intensive Blood Pressure Reduction in Acute Cerebral Haemorrhage trials studies are registered with ClinicalTrials.gov (NCT00226096 and NCT00716079). </jats:p></jats:sec>
Scopus© Citations 15 30
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Degree and Timing of Intensive Blood Pressure Lowering on Hematoma Growth in Intracerebral Hemorrhage Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial-2 Results
(2016)
Cheryl Carcel
;
Xia Wang
;
Shoichiro Sato
;
Christian Stapf
;
Else Charlotte Sandset
<jats:sec> <jats:title>Background and Purpose—</jats:title> <jats:p>Degree and timing of blood pressure (BP) lowering treatment in relation to hematoma growth were investigated in the Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial-2 (INTERACT2).</jats:p> </jats:sec> <jats:sec> <jats:title>Methods—</jats:title> <jats:p>INTERACT2 was an international clinical trial of intensive (target systolic BP [SBP], <140 mm Hg) versus guideline-recommended (SBP, <180 mm Hg) BP lowering in 2839 patients within 6 hours of spontaneous intracerebral hemorrhage and elevated SBP (150–220 mm Hg), in which 964 had repeat cranial computed tomography at 24 hours. ANCOVA models assessed categories of SBP reduction and time to target SBP on 24-hour hematoma growth.</jats:p> </jats:sec> <jats:sec> <jats:title>Results—</jats:title> <jats:p> Greater SBP reduction was associated with reduced hematoma growth (13.3, 5.0, and 3.0 mL for <10, 10–20, and ≥20 mm Hg, respectively; <jats:italic>P</jats:italic> trend<0.001). In the intensive treatment group (n=491), the least mean hematoma growth was in patients who achieved target SBP <1 hour (2.6 mL) versus to those in target at 1 to 6 (4.7 mL) and >6 hours (5.4 mL). The smallest mean absolute hematoma growth (2.0 mL) was in those achieving target SBP 5 to 8 times versus 3 to 4 (3.1 mL) and 0 to 2 times (5.2 mL). </jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions—</jats:title> <jats:p>Intensive BP lowering with greater SBP reduction, which is achieved quickly and maintained consistently, seems to provide protection against hematoma growth for 24 hours.</jats:p> </jats:sec> <jats:sec> <jats:title>Clinical Trial Registration—</jats:title> <jats:p> URL: <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.clinicaltrials.gov">http://www.clinicaltrials.gov</jats:ext-link> . Unique identifier: NCT00716079. </jats:p> </jats:sec>
Scopus© Citations 50 1
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Mannitol and Outcome in Intracerebral Hemorrhage Propensity Score and Multivariable Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial 2 Results
(2015)
Xia Wang
;
Hisatomi Arima
;
Jie Yang
;
Shihong Zhang
;
Guojun Wu
<jats:sec> <jats:title>Background and Purpose—</jats:title> <jats:p>Mannitol is often used to reduce cerebral edema in acute intracerebral hemorrhage but without strong supporting evidence of benefit. We aimed to determine the impact of mannitol on outcome among participants of the Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial (INTERACT2).</jats:p> </jats:sec> <jats:sec> <jats:title>Methods—</jats:title> <jats:p>INTERACT2 was an international, open, blinded end point, randomized controlled trial of 2839 patients with spontaneous intracerebral hemorrhage (<6 hours) and elevated systolic blood pressure allocated to intensive (target systolic blood pressure, <140 mm Hg within 1 hour) or guideline-recommended (target systolic blood pressure, <180 mm Hg) blood pressure–lowering treatment. Propensity score and multivariable analyses were performed to investigate the relationship between mannitol treatment (within 7 days) and poor outcome, defined by death or major disability on the modified Rankin Scale score (3–6) at 90 days.</jats:p> </jats:sec> <jats:sec> <jats:title>Results—</jats:title> <jats:p> There was no significant difference in poor outcome between mannitol (n=1533) and nonmannitol (n=993) groups: propensity score–matched odds ratio of 0.90 (95% confidence interval, 0.75–1.09; <jats:italic>P</jats:italic> =0.30) and multivariable odds ratio of 0.87 (95% confidence interval, 0.71–1.07; <jats:italic>P</jats:italic> =0.18). Although a better outcome was suggested in patients with larger (≥15 mL) than those with smaller (<15 mL) baseline hematomas who received mannitol (odds ratio, 0.52 [95% confidence interval, 0.35–0.78] versus odds ratio, 0.91 [95% confidence interval, 0.72–1.15]; <jats:italic>P</jats:italic> homogeneity <0.03 in propensity score analyses), the association was not consistent in analyses across other cutoff points (≥10 and ≥20 mL) and for differing grades of neurological severity. Mannitol was not associated with excess serious adverse events. </jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions—</jats:title> <jats:p>Mannitol seems safe but might not improve outcome in patients with acute intracerebral hemorrhage.</jats:p> </jats:sec> <jats:sec> <jats:title>Clinical Trial Registration—</jats:title> <jats:p> URL: <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.clinicaltrials.gov">http://www.clinicaltrials.gov</jats:ext-link> . Unique identifier: NCT00716079. </jats:p> </jats:sec>
6Scopus© Citations 53
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Significance of Cerebral Small-Vessel Disease in Acute Intracerebral Hemorrhage
(2016)
Shoichiro Sato
;
Candice Delcourt
;
Emma Heeley
;
Hisatomi Arima
;
Shihong Zhang
<jats:sec> <jats:title>Background and Purpose—</jats:title> <jats:p>The significance of structural changes associated with cerebral small-vessel disease (SVD), including white matter lesions (WML), lacunes, and brain atrophy, to outcome from acute intracerebral hemorrhage is uncertain. We determined associations of computed tomographic radiological manifestations of cerebral SVD and outcomes, and in terms of any differential effect of early intensive blood pressure–lowering treatment, in the large-scale Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial (INTERACT2).</jats:p> </jats:sec> <jats:sec> <jats:title>Methods—</jats:title> <jats:p>We graded WML (van Swieten scale), the presence of lacunes, and brain atrophy (2 linear measurements and visual rating) for 2069 of 2839 patients with available baseline brain computed tomography (<6 hours of intracerebral hemorrhage onset) by 3 independent neurologists blind to clinical data.</jats:p> </jats:sec> <jats:sec> <jats:title>Results—</jats:title> <jats:p> WML grade and 2 linear measurements of brain atrophy were associated with death or major disability at 90 days: multivariable-adjusted odds ratios for WML (grade 3 and 4 versus 0), frontal ratio, and third ventricle Sylvian fissure distance (most versus least severe atrophy quartile) were 1.42 (95% confidence interval, 1.02–1.98), 1.47 (1.08–1.99), and 1.64 (1.21–2.22), respectively (all <jats:italic>P</jats:italic> for trend <0.05). There was no association between lacunes and outcomes. There were no significant differences in the effects of intensive blood pressure–lowering across subgroups of cerebral SVD. </jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions—</jats:title> <jats:p>Preexisting cerebral SVD manifestations of WML and brain atrophy predict poor outcome in acute intracerebral hemorrhage. There is no apparent hazard of early intensive lowering of blood pressure according to the INTERACT2 protocol, in patients with underlying cerebral SVD.</jats:p> </jats:sec> <jats:sec> <jats:title>Clinical Trial Registration—</jats:title> <jats:p> URL: <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.clinicaltrials.gov">http://www.clinicaltrials.gov</jats:ext-link> . Unique identifier: NCT00716079. </jats:p> </jats:sec>
3Scopus© Citations 70
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Significance of Hematoma Shape and Density in Intracerebral Hemorrhage The Intensive Blood Pressure Reduction in Acute Intracerebral Hemorrhage Trial Study
(2016)
Candice Delcourt
;
Shihong Zhang
;
Hisatomi Arima
;
Shoichiro Sato
;
Rustam Al-Shahi Salman
<jats:sec> <jats:title>Background and Purpose—</jats:title> <jats:p>In patients with acute intracerebral hemorrhage (ICH), the shape and density of the hematoma are associated with its subsequent growth, but the impact of these parameters on clinical outcome is uncertain.</jats:p> </jats:sec> <jats:sec> <jats:title>Methods—</jats:title> <jats:p>Baseline computed tomographic scans and clinical data were obtained in the Intensive Blood Pressure Reduction in Acute Intracerebral Hemorrhage Trial (INTERACT2). Three independent neurologists blind to clinical data assessed ICH for shape and density using a previously described scale. Shape was defined as irregular when the ICH had ≥2 extra lesions added to the ellipsoid-shaped ICH. Density was heterogeneous when there were ≥3 low-density lesions within the ICH. Outcome measures were death and major disability (modified Rankin scale score of 3–5), combined and separate at 90-day postrandomization. Multivariable logistic regression models were used to determine the significance of hematoma characteristics on outcome.</jats:p> </jats:sec> <jats:sec> <jats:title>Results—</jats:title> <jats:p>There were 2066 patient computed tomographic scans included in the analysis, with 46% and 38% having irregular and heterogeneous ICH, respectively. Irregular shape was independently associated with death/major disability (adjusted odds ratio, 1.60; 95% confidence interval [CI], 1.29–1.98) and major disability alone (adjusted odds ratio, 1.60; 95% CI, 1.31–1.95), but not with death alone (adjusted odds ratio, 0.97; 95% CI, 0.68–1.39). Heterogeneous density was not associated with clinical outcomes (adjusted odds ratio, 1.06; 95% CI, 0.85–1.33), 1.04 (95% CI, 0.73–1.48), and 1.14 (95% CI, 0.93–1.39), respectively, for death/major disability, death alone, and disability alone).</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions—</jats:title> <jats:p>Irregular shape, but not heterogeneous density, is independently associated with poor outcome after ICH.</jats:p> </jats:sec> <jats:sec> <jats:title>Clinical Trial Registration—</jats:title> <jats:p> URL: <jats:ext-link xmlns:xlink="http://www.w3.org/1999/xlink" ext-link-type="uri" xlink:href="http://www.clinicaltrials.gov">http://www.clinicaltrials.gov</jats:ext-link> . Unique identifier: NCT00716079. </jats:p> </jats:sec>
1Scopus© Citations 71

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