Adverse event classification
To score the severity of a clinical complication, several scales have been proposed and applied in neurosurgery.
Clavien Dindo Grading system (most used).
Landriel IbaƱez Classification.
Major complication and minor complications.
Risk of intraop AEs, but not postop AEs, increased with increasing age. Having multiple comorbidities does not predispose to more AEs. Infections predominate among the postop AEs. Patients at increased risk of delirium or of having an increased length of hospital stay may more easily be predicted. Studies specifically designed to prospectively assess AEs have the potential to more accurately identify postop AE rates 1).
1)
Kelly AM, Batke JN, Dea N, Hartig DP, Fisher CG, Street JT. Prospective
analysis of adverse events in surgical treatment of degenerative
spondylolisthesis. Spine J. 2014 Dec 1;14(12):2905-10. doi:
10.1016/j.spinee.2014.04.016. Epub 2014 Apr 21. PubMed PMID: 24769400.