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Neutrophil-lymphocyte ratio as a predictor of cognitive dysfunction in carotid endarterectomy patients.

Abstract：

BACKGROUND:Systemic inflammation has been implicated in the development of cognitive dysfunction following carotid endarterectomy (CEA). Neutrophil-lymphocyte ratio (NLR) is a reliable measure of systemic inflammation. We hypothesize that patients with elevated preoperative NLR have increased risk of cognitive dysfunction 1 day after CEA. METHODS:Five hundred fifty-one patients scheduled for CEA were enrolled at Columbia University in New York, NY from 1995 to 2012. NLR was retrospectively reviewed; only 432 patients had preoperative NLR values available within 2 weeks of CEA. NLR was analyzed as a continuous variable and categorically with a cutoff of ≥5 and <5 and equal tertiles, as done in previous studies. RESULTS:Patients with cognitive dysfunction had significantly higher NLR than those without cognitive dysfunction (4.5 ± 4.0 vs 3.2 ± 2.6; P < .001). The incidence of cognitive dysfunction was significantly higher in patients with NLR ≥5 than NLR <5 (34.7% vs 12.8%; P < .001). Significantly fewer patients in the low tertile had cognitive dysfunction than in the high tertile (6.9% vs 25.9%; P <.001) and middle tertile (6.9% vs 17.4%; P = .006). In the final multivariate model, diabetes mellitus (odds ratio [OR], 2.03; 95% confidence interval [CI], 1.08-3.75; P = .03) and NLR ≥5 (OR, 3.38; 95% CI, 1.81-6.27; P < .001) were significantly associated with higher odds of cognitive dysfunction, while statin use was significantly associated with lower odds (OR, 0.48; 95% CI, 0.27-0.84; P = .01). CONCLUSIONS:Preoperative NLR is associated with cognitive dysfunction 1 day after CEA. NLR ≥5 and diabetes mellitus are significantly associated with increased odds of cognitive dysfunction whereas statin use is significantly associated with decreased odds.

journal_name

J Vasc Surg

journal_title

Journal of vascular surgery

authors

Halazun HJ,Mergeche JL,Mallon KA,Connolly ES,Heyer EJ

doi

10.1016/j.jvs.2013.08.095

subject

Has Abstract

pub_date

2014-03-01 00:00:00

pages

768-73

issue

3

eissn

0741-5214

issn

1097-6809

pii

S0741-5214(13)01709-6

journal_volume

59

pub_type

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