Lee et al reviewed lumbar spinal surgery for predictors of complications. One group of predictors deals with neurologic complications. The authors are from the University of Washington and Harborview Medical Center in Seattle.

Patient selection: age >= 18 years of age


Neurologic complications: seizure, drug or alcohol withdrawal, stroke or TIA, delirium, diabetes insipidus, meningitis, subarachnoid or intracerebral hemorrhage



(1) surgical invasiveness index for spinal surgery (ranges from 0 to 48)


Predictors for neurologic complications from multivariate analysis:

(1) cerebrovascular disease (relative risk 3.1)

(2) surgical invasiveness >5 (relative risk 14.2


Other factors from univariate analysis:

(1) age >= 40 years

(2) female sex

(3) non-MI cardiac abnormality

(4) COPD

(5) revision surgery

(6) combined approach

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