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  • Title: Influence of the Extent of Intraventricular Hemorrhage on Functional Outcome and Mortality in Intracerebral Hemorrhage.
    Author: Roeder SS, Sprügel MI, Sembill JA, Giede-Jeppe A, Macha K, Madžar D, Lücking H, Hoelter P, Gerner ST, Kuramatsu JB, Huttner HB.
    Journal: Cerebrovasc Dis; 2019; 47(5-6):245-252. PubMed ID: 31212293.
    Abstract:
    BACKGROUND AND OBJECTIVE: Intraventricular hemorrhage (IVH) is a verified independent prognostic parameter in patients with intracerebral hemorrhage (ICH). However, the impact of the extent of IVH on clinical outcomes is unestablished. METHODS: We analyzed 1,112 consecutive primary ICH patients of the UKER-ICH cohort (NCT03183167) and hypothesized that there is no difference in outcome between patients without IVH and patients with minor IVH not leading to obstructive hydrocephalus. Propensity score matching and multivariable analyses were performed to account for imbalances in baseline characteristics. Primary outcome was defined as functional outcome 3 months after ICH -assessed using the modified Rankin Scale (mRS) dichotomized into favorable (mRS = 0-3) and unfavorable outcome (mRS = 4-6). Secondary outcomes included mortality at 3  months and a Graeb score-based threshold analysis for association of the extent of IVH with unfavorable clinical outcome. RESULTS: Among the 461 out of 1,112 (41.5%) ICH patients with IVH, 191 out of 461 (41.4%) showed IVH without obstructive hydrocephalus and no requirement of external ventricular drain (EVD) placement. After adjusting for baseline imbalances we found no difference in functional outcome at 3 months between patients without IVH (No-IVH) and patients with IVH not requiring EVD (IVH-w/o-EVD): mRS 0-3: No-IVH 64/161 (39.8%) vs. IVH-w/o-EVD 53/170 (31.2%); p = 0.103. However, there was a trend toward a higher mortality in IVH-w/o-EVD patients (mRS 6: No IVH 40/161 [24.8%] vs. IVH-w/o-EVD 57/170 [33.5%]; p = 0.083). Multivariable analysis revealed that a Graeb score >2 was independently associated with unfavorable outcome (mRS 4-6: OR 3.16 [1.54-6.48]; p = 0.002), and higher mortality (mRS 6: OR 2.57 [1.40-4.74]; p = 0.002) in IVH patients. CONCLUSIONS: Small amounts of intraventricular blood (Graeb score ≤2) not leading to obstructive hydrocephalus are not associated with unfavorable outcome or death after ICH. Thus, IVH per se should not be considered a binary variable in outcome prediction for ICH patients.
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