Core Outcomes and Common Data Elements in XXXX : A Systematic Review of the Literature Focusing on Baseline and Peri-Operative Care Data Elements.

@entity1 @entity542 @entity772 @entity6087 @entity3459 @entity16841
UNASSIGNED: @entity6087 ( @entity16841 ) is an increasingly common subtype of @entity542 , especially in the elderly population. The optimization of treatment strategies has been hampered by the collection of heterogeneous outcome measures and data elements, precluding cross-study comparisons. This study aimed to quantify the heterogeneity of data elements in the pre-operative, operative, and post-operative phases of care, and build the basis for the development of a set of common data elements (CDEs) for @entity16841 . This systematic review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) statement and was registered with the PROSPERO register of systematic reviews (CRD42014007266). All full-text English studies with more than 10 @entity1 (prospective) or more than 100 @entity1 (retrospective) published after 1990 examining clinical outcomes in @entity16841 were eligible for inclusion. One hundred two eligible studies were found. Only 40 studies (39.2%) reported the main presenting symptom/feature and 24 (23.5%) reported additional symptoms/features. Admitting neurological/functional status was classified by the Glasgow @entity772 Scale (25 studies; 24.5%), the Markwalder Score (26 studies; 25.5%) and the modified Rankin Scale (three studies; 2.9%). Fifty-four studies (52.9%) made some mention of @entity1 comorbidities and 58 studies (56.9%) reported the proportion or excluded patients on anticoagulant medication. Eighteen studies (17.6%) reported @entity3459 status. Sixty-four studies (62.7%) stratified or assessed severity based on radiological findings, although the methods used varied widely. There was variable reporting of surgical technique and post-operative care; 32 studies (31.4%) made no mention of whether the operations were performed under general or local anesthetic. This study, a part of the Core Outcomes and Common Data Elements in @entity16841 ( @entity16841 ) project, confirms and quantifies the heterogeneity of data elements collected and reported in @entity16841 studies to date. It establishes the basis for the consensus-based development of a set of common data elements, facilitating robust cross-study comparisons and resulting improvements in @entity1 outcomes.
