• Danfeng Zhang, Qiang Xue, Jigang Chen, Yan Dong, Lijun Hou, Ying Jiang, and Junyu Wang.
• Department of Neurosurgery, Shanghai neurosurgical institute, Changzheng Hospital, Shanghai, China.
• Sci Rep. 2017 Aug 18; 7 (1): 8800.

AbstractWe aim to perform a systematic review and meta-analysis to examine the prognostic value of decompressive craniectomy (DC) in patients with traumatic intracranial hypertension. PubMed, EMBASE, Cochrane Controlled Trials Register, Web of Science, http://clinicaltrials.gov/ were searched for eligible studies. Ten studies were included in the systematic review, with four randomized controlled trials involved in the meta-analysis, where compared with medical therapies, DC could significantly reduce mortality rate [risk ratio (RR), 0.59; 95% confidence interval (CI), 0.47-0.74, P < 0.001], lower intracranial pressure (ICP) [mean difference (MD), -2.12 mmHg; 95% CI, -2.81 to -1.43, P < 0.001], decrease the length of ICU stay (MD, -4.63 days; 95% CI, -6.62 to -2.65, P < 0.001) and hospital stay (MD, -14.39 days; 95% CI, -26.00 to -2.78, P = 0.02), but increase complications rate (RR, 1.94; 95% CI, 1.31-2.87, P < 0.001). No significant difference was detected for Glasgow Outcome Scale at six months (RR, 0.85; 95% CI, 0.61-1.18, P = 0.33), while in subgroup analysis, early DC would possibly result in improved prognosis (P = 0.04). Results from observational studies supported pooled results except prolonged length of ICU and hospital stay. Conclusively, DC seemed to effectively lower ICP, reduce mortality rate but increase complications rate, while its benefit on functional outcomes was not statistically significant.

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