Brain Injury Biomarker Behavior in Spontaneous Intracerebral Hemorrhage

Pathophysiologic mechanisms of secondary brain injury after intracerebral hemorrhage and in particular mechanisms of perihematomal-edema progression remain incompletely understood. Recently, the role of spreading depolarizations in secondary brain injury was established in ischemic stroke, subarachnoid hemorrhage and traumatic brain injury patients. Its role in intracerebral hemorrhage patients and in particular the association with perihematomal-edema is not known. A total of 27 comatose intracerebral hemorrhage patients in whom hematoma evacuation and subdural electrocorticography was performed were studied prospectively. Hematoma evacuation and subdural strip electrode placement was performed within the first 24 h in 18 patients (67%). Electrocorticography recordings started 3 h after surgery (IQR, 3–5 h) and lasted 157 h (median) per patient and 4876 h in all 27 patients. In 18 patients (67%), a total of 650 spreading depolarizations were observed. Spreading depolarizations were more common in the initial days with a peak incidence on day 2. Median electrocorticography depression time was longer than previously reported (14.7 min, IQR, 9–22 min). Postoperative perihematomal-edema progression (85% of patients) was significantly associated with occurrence of isolated and clustered spreading depolarizations. Monitoring of spreading depolarizations may help to better understand pathophysiologic mechanisms of secondary insults after intracerebral hemorrhage. Whether they may serve as target in the treatment of intracerebral hemorrhage deserves further research.

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The Influence of Oxidative Stress on Neurological Outcomes in Spontaneous Intracerebral Hemorrhage

Biomolecules ◽

10.3390/biom11111615 ◽

2021 ◽

Vol 11 (11) ◽

pp. 1615

Author(s):

Julia Masomi-Bornwasser ◽

Elena Kurz ◽

Christina Frenz ◽

Jan Schmitt ◽

Dominik M. A. Wesp ◽

...

Keyword(s):

Oxidative Stress ◽

Brain Injury ◽

Intracerebral Hemorrhage ◽

Total Antioxidant Status ◽

Secondary Brain Injury ◽

Spontaneous Intracerebral Hemorrhage ◽

Neurological Outcomes ◽

Total Antioxidant ◽

Patient’S Outcome ◽

The Impact

Spontaneous intracerebral hemorrhage (ICH) causes, besides the primary brain injury, a secondary brain injury (SBI), which is induced, amongst other things, by oxidative stress (OS) and inflammation, determining the patient’s outcome. This study aims to assess the impact of OS in plasma and cerebrospinal fluid (CSF) on clinical outcomes in patients with ICH. A total of 19 ICH (volume > 30 cc) patients and 29 control patients were included. From day one until seven, blood and CSF samples were obtained, and ICH volume was calculated. OS markers, like malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase (GSH-Px), glutathione-sulfhydryl (GSH), and the total antioxidant status (TAS) were measured. Clinical data on treatment and outcome were determined. Patients with mRS ≤ 4 showed significantly elevated SOD and GSH-Px levels in plasma compared to patients with poor CO (p = 0.004; p = 0.002). Initial increased TAS in plasma and increased MDA in CSF were linked to an unfavorable outcome after six months (p = 0.06, r = 0.45; p = 0.05, r = 0.44). A higher ICH volume was associated with a worse outcome at week six (p = 0.04, r = 0.47). OS plays a significant role in SBI. Larger ICHs, elevated MDA in CSF, and TAS in plasma were associated with a detrimental outcome, whereas higher plasma-SOD and -GSH-Px were associated with a favorable outcome.

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Long-term mortality in survivors of spontaneous intracerebral hemorrhage

International Journal of Stroke ◽

10.1177/1747493020954946 ◽

2020 ◽

pp. 174749302095494

Author(s):

Marco Pasi ◽

Barbara Casolla ◽

Maéva Kyheng ◽

Grégoire Boulouis ◽

Grégory Kuchcinski ◽

...

Keyword(s):

Brain Injury ◽

Intracerebral Hemorrhage ◽

Cerebral Atrophy ◽

Clinical Severity ◽

Clinical Event ◽

Spontaneous Intracerebral Hemorrhage ◽

Point Increase ◽

Long Term Mortality

Background Factors associated with long-term mortality after spontaneous intracerebral hemorrhage (ICH) have been poorly investigated. Aim Our objective was to identify variables associated with long-term mortality in a prospective cohort of 30-day ICH survivors. Methods We prospectively included consecutive 30-day spontaneous ICH survivors. We evaluated baseline and follow-up clinical characteristics and magnetic resonance imaging (MRI) markers of chronic brain injury as variables associated with long-term mortality using univariate and multivariable Cox proportional hazard regression models. Results Of 560 patients with spontaneous ICH, 304 (54.2%) survived more than 30 days and consented for follow-up. During a median follow-up of 10 years (interquartile range: 8.0–10.5), 176 patients died. The cumulative survival rate at 10 years was 38%. In multivariable analysis, variables independently associated with long-term mortality were age (hazard ratio (HR) per 10-year increase: 1.68, 95% confidence interval (CI): 1.45–1.95), male gender (HR: 1.41, CI: 1.02–1.95), prestroke dependency (HR: 1.66, CI: 1.15–2.39), National Institutes of Health Stroke Scale score (HR per 1-point increase: 1.03, CI: 1.01–1.04), occurrence of any stroke (HR: 2.24, CI: 1.39–3.60), and dementia (HR: 1.51, CI: 1.06–2.16) during follow-up. Among MRI markers, only cerebral atrophy (HR per 1-point increase: 1.50, CI: 1.13–2.00) was independently associated with long-term mortality. Conclusions Preexisting comorbidities, clinical severity at presentation, and significant clinical event during follow-up are associated with long-term mortality. Among MRI markers of chronic brain injury, only cerebral atrophy is associated with long-term mortality.

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