Article Figures & Data
Figures
- Figure 1
Flowchart of trial selection for a meta-analysis on the impact of operation detail on hydrocephalus after decompressive craniotomy.
- Figure 2
Forest plot of correlation between distance of craniectomy to the midline and hydrocephalus after decompressive craniectomy. The pooled estimates were obtained using a fixed-effects model. IV - inverse variance, C<->M - craniectomy to midline, SE - standard error, CI - confidence interval, df - degrees of freedom. Mar - the article published in March
- Figure 3
Forest plot for comparison of the craniectomy distance to the midline in the hydrocephalus group and the no-hydrocephalus group. The pooled estimates were obtained using a fixed-effects model. IV - inverse variance, SD - standard deviation. CI - confidence interval, df - degrees of freedom. Mar - the article published in March
- Figure 4
Funnel plot for publication bias of the meta-analysis shown in Figure 3. MD - mean difference, SE - standard error
Tables
- Table 1
Characteristics and outcomes of the studies included in the meta-analysis on the impact of operation details on hydrocephalus after decompressive craniotomy.
First author, Year No. Country Study design Primary disease Main outcomes Adjustment Level of evidence (CEBM) Case No. of hydrocephalus/distance to midline <25mm Case No. of hydrocephalus/ distance to midline ≥25mm Mean distance to midline in hydrocephalus group (cm), case No. Mean distance to midline in no-hydrocephalus group(cm), case No. Honeybul & Ho, 201212 159 Australia Retrospective observational cohort TBI – – 2.4±1.1, 10 2.3±1.0, 73 Age, GCS, pupil reactivity, extracranial injury 2b De Bonis et al, 201313 64 Italy Retrospective observational cohort TBI 15/32 4/32 – – Age, gender, hygroma, CSF infection, IVH 2b Takeuchi et al, 20132 21 Japan Retrospective observational cohort HICH 8/14 2/7 2.17±0.47, 10 2.6±0.33, 11 Age, gender, GCS, IVH, midline shift 3b Takeuchi et al, 201314 28 Japan Retrospective observational cohort CI 11/16 2/12 – – Age, gender, GCS, side, midline shift, infarct area, meningitis 3b Wang et al, 201415 62 China Retrospective observational cohort TBI – – 3.4±1.1, 15 3.7±1.0, 47 Age, GCS, Fisher grade, midline shift, meningitis 2b Wang et al, 201516 128 China Retrospective observational cohort CI 13/82 6/46 2.36±0.42, 19 2.31±0.48, 109 Age, duration from infarction to craniectomy, presence of SAH, preoperative GCS score 2b No. - number, cm - centimeter, – - not reported, CEBM - Centre for Evidence-Based Medicine, GCS - Glasgow Coma Scale score, IVH - intraventricular hemorrhage, TBI - traumatic brain injury, HICH - hypertensive intracerebral hemorrhage, CI - cerebral infarction, CSF - cerebrospinal fluid, SAH - subarachnoid hemorrhage, 2b-3b - Studies were graded from level 1 (strongest evidence) to level 5 (weakest evidence)
- Table 2
Methodological quality of included studies (STROBE criteria) in a meta-analysis on the impact of operation details on hydrocephalus after decompressive craniotomy.
Variable First author and year Honeybul & Ho, 201212 De Bonis et al, 201313 Takeuchi et al, 20132 Takeuchi et al, 201314 Wang et al, 201415 Wang et al, 201516 Title/abstract + + + + + + Introduction Background/rationale + + + + + + Objectives + + + + + + Methods Study design + + + + + + Setting + + + + + + Participants + + + + + + Variables + + + + + + Data sources/measurement + + + + + + Bias + + - - + + Study size Quantitative variables + + + + + + Statistical methods + + + + + + Results Participants - + + + + + Descriptive data + + + + + + Outcome data + + + + + + Main results + + + + + + Other analyses + + + + + + Discussion Key results + + + + + + Limitations + - + + - + Interpretation + + + + + + Generalizability + + + + + + Funding information + + - - - + + = provided, - = not provided, STROBE - Strengthening the Reporting of Observational Studies in Epidemiology
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