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There is a need for an overview of systematic reviews (SRs) examining randomized clinical trials (RCTs) of pharmacological interventions in the treatment of intracranial pressure (ICP) post-TBI. To summarize pharmacological effectiveness in decreasing ICP in SRs with RCTs and evaluate study quality. Comprehensive literature searches were conducted in MEDLINE, PubMed, EMBASE, PsycINFO, and Cochrane Library databases for English SRs through October 2020. Inclusion criteria were SRs with RCTs that examined pharmacological interventions to treat ICP in patients post-TBI. Data extracted were participant characteristics, pharmacological interventions, and ICP outcomes. Study quality was assessed with AMSTAR-2. Eleven SRs between 2003 and 2020 were included. AMSTAR-2 ratings revealed 3/11 SRs of high quality. Pharmacological interventions included hyperosmolars, neuroprotectives, anesthetics, sedatives, and analgesics. Study samples ranged from 7 to 1282 patients. Hyperosmolar agents and sedatives were beneficial in lowering elevated ICP. High bolus dose opioids had a more deleterious effect on ICP. Neuroprotective agents did not show any effects in ICP management. RCT sample sizes and findings in the SRs varied. A lack of detailed data syntheses was noted. AMSTAR-2 analysis revealed moderate to high quality in most SRs. Future SRs may focus on streamlined reporting of dosing and clearer clinical recommendations. PROSPERO-Registration: CRD42015017355.

An overview of systematic reviews on the pharmacological randomized controlled trials for reducing intracranial pressure after traumatic brain injury