Dataset Information

Factors associated with early deterioration after spontaneous intracerebral hemorrhage: a systematic review and meta-analysis.

ABSTRACT:

Background and purpose

Spontaneous intracerebral hemorrhage (ICH) is a devastating form of stroke with a poor prognosis overall. We conducted a systematic review and meta-analysis to identify and describe factors associated with early neurologic deterioration (END) after ICH.

Methods

We sought to identify any factor which could be prognostic in the absence of an intervention. The Cochrane Library, EMBASE, the Global Health Library, and PubMed were searched for primary studies from the years 1966 to 2012 with no restrictions on language or study design. Studies of patients who received a surgical intervention or specific experimental therapies were excluded. END was defined as death, or worsening on a reliable outcome scale within seven days after onset.

Results

7,172 abstracts were reviewed, 1,579 full-text papers were obtained and screened. 14 studies were identified; including 2088 patients. Indices of ICH severity such as ICH volume (univariate combined OR per ml:1.37, 95%CI: 1.12-1.68), presence of intraventricular hemorrhage (2.95, 95%CI: 1.57-5.55), glucose concentration (per mmol/l: 2.14, 95%CI: 1.03-4.47), fibrinogen concentration (per g/l: 1.83, 95%CI: 1.03-3.25), and d-dimer concentration at hospital admission (per mg/l: 4.19, 95%CI: 1.88-9.34) were significantly associated with END after random-effects analyses. Whereas commonly described risk factors for ICH progression such as blood pressure, history of hypertension, and ICH growth were not.

Conclusions

This study summarizes the evidence to date on early ICH prognosis and highlights that the amount and distribution of the initial bleed at hospital admission may be the most important factors to consider when predicting early clinical outcomes.

SUBMITTER: Specogna AV

PROVIDER: S-EPMC4014549 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Publications

Factors associated with early deterioration after spontaneous intracerebral hemorrhage: a systematic review and meta-analysis.

Specogna Adrian V AV Turin Tanvir C TC Patten Scott B SB Hill Michael D MD

PloS one 20140508 5

<h4>Background and purpose</h4>Spontaneous intracerebral hemorrhage (ICH) is a devastating form of stroke with a poor prognosis overall. We conducted a systematic review and meta-analysis to identify and describe factors associated with early neurologic deterioration (END) after ICH.<h4>Methods</h4>We sought to identify any factor which could be prognostic in the absence of an intervention. The Cochrane Library, EMBASE, the Global Health Library, and PubMed were searched for primary studies from ...[more]

PMID: 24809990

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Project description:BackgroundPrognostic tools for intracerebral hemorrhage (ICH) patients are potentially useful for ascertaining prognosis and recommended in guidelines to facilitate streamline assessment and communication between providers. In this systematic review with meta-analysis we identified and characterized all existing prognostic tools for this population, performed a methodological evaluation of the conducting and reporting of such studies and compared different methods of prognostic tool derivation in terms of discrimination for mortality and functional outcome prediction.MethodsPubMed, ISI, Scopus and CENTRAL were searched up to 15th September 2016, with additional studies identified using reference check. Two reviewers independently extracted data regarding the population studied, process of tool derivation, included predictors and discrimination (c statistic) using a predesignated spreadsheet based in the CHARMS checklist. Disagreements were solved by consensus. C statistics were pooled using robust variance estimation and meta-regression was applied for group comparisons using random effect models.ResultsFifty nine studies were retrieved, including 48,133 patients and reporting on the derivation of 72 prognostic tools. Data on discrimination (c statistic) was available for 53 tools, 38 focusing on mortality and 15 focusing on functional outcome. Discrimination was high for both outcomes, with a pooled c statistic of 0.88 for mortality and 0.87 for functional outcome. Forty three tools were regression based and nine tools were derived using machine learning algorithms, with no differences found between the two methods in terms of discrimination (p = 0.490). Several methodological issues however were identified, relating to handling of missing data, low number of events per variable, insufficient length of follow-up, absence of blinding, infrequent use of internal validation, and underreporting of important model performance measures.ConclusionsPrognostic tools for ICH discriminated well for mortality and functional outcome in derivation studies but methodological issues require confirmation of these findings in validation studies. Logistic regression based risk scores are particularly promising given their good performance and ease of application.

Project description:ImportancePatients who have experienced intracerebral hemorrhage (ICH) appear to develop cognitive impairment at high rates, both early after ICH and over the long term.ObjectiveTo identify and compare risk factors for early and delayed dementia after ICH.Design, setting, and participantsA longitudinal study enrolled patients who had experienced ICH from January 1, 2006, to December 31, 2013. A total of 738 participants 18 years or older, without pre-ICH dementia, who presented to a tertiary care academic institution with primary ICH were included in the analyses of early post-ICH dementia (EPID). After accounting for incident dementia and mortality at 6 months, 435 participants were included in the analyses of delayed post-ICH dementia (DPID).ExposuresIntracerebral hemorrhage.Main outcomes and measuresCognitive performance was captured using the modified Telephone Interview for Cognitive Status test. Outcomes included EPID, diagnosed within 6 months after ICH, and DPID, diagnosed beyond 6 months after ICH.ResultsAmong 738 patients who had experienced ICH (mean [SD] age, 74.3 [12.1] years; 384 men [52.0%]), 140 (19.0%) developed dementia within 6 months. A total of 435 patients without dementia at 6 months were followed up longitudinally (median follow-up, 47.4 months; interquartile range, 43.4-52.1 months), with an estimated yearly incidence of dementia of 5.8% (95% CI, 5.1%-7.0%). Larger hematoma size (hazard ratio [HR], 1.47 per 10-mL increase; 95% CI, 1.09-1.97; P < .001 for heterogeneity) and lobar location of ICH (HR, 2.04; 95% CI, 1.06-3.91; P = .02 for heterogeneity) were associated with EPID but not with DPID. Educational level (HR, 0.60; 95% CI, 0.40-0.89; P < .001 for heterogeneity), incident mood symptoms (HR, 1.29; 95% CI, 1.02-1.63; P = .01 for heterogeneity), and white matter disease as defined via computed tomography (HR, 1.70; 95% CI, 1.07-2.71; P = .04 for heterogeneity) were associated with DPID but not EPID.Conclusions and relevanceIncident dementia early after ICH is strongly associated with hematoma size and location. Delayed incident dementia is frequent among patients who have experienced ICH and is not prominently associated with acute characteristics of ICH. These findings suggest the existence of heterogeneous biological mechanisms accounting for early vs delayed cognitive decline among patients who have experienced ICH.

Dataset Information

Factors associated with early deterioration after spontaneous intracerebral hemorrhage: a systematic review and meta-analysis.

Background and purpose

Methods

Results

Conclusions

Publications

Factors associated with early deterioration after spontaneous intracerebral hemorrhage: a systematic review and meta-analysis.

Similar Datasets

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