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A Magnetic Resonance Imaging-based Computational Protocol for Analysis of Plaque Morphology and Hemodynamics in Patients with Carotid Artery Stenosis

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Complement polymorphisms and cognitive dysfunction after carotid endarterectomy.

Eric J Heyer¹, Christopher P Kellner, Hani R Malone

¹Department of Anesthesiology, Columbia University, New York, New York, USA. ejh3@columbia.edu

Journal of Neurosurgery

|May 14, 2013

Summary

This summary is machine-generated.

Genetic variations in complement genes C5 and CFH may predict short-term cognitive dysfunction after carotid endarterectomy (CEA). These findings highlight the complement system's role in postoperative cognitive dysfunction (CD) and warrant further study.

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Published on: November 22, 2024

Area of Science:

Neurology
Genetics
Cardiovascular Surgery

Background:

Postoperative cognitive dysfunction (CD) after carotid endarterectomy (CEA) is a concern.
The role of genetic polymorphisms in predicting CD after CEA is not well understood.

Purpose of the Study:

To investigate the association between specific complement cascade-related single nucleotide polymorphisms (SNPs) and the occurrence of CD following CEA.
To assess the predictive value of C5, MBL2, and CFH gene polymorphisms for CD.

Main Methods:

Genotyping was performed for C5 (rs17611), MBL2 (rs7096206), and CFH (rs1061170) in 252 patients undergoing CEA.
Patients were assessed for CD using a neuropsychometric battery at 1 day and 1 month post-surgery.
Multiple logistic regression analysis was used to identify predictors of CD.

Main Results:

Specific C5 genotypes (A/G, G/G) were linked to lower odds of CD at 1 day post-CEA.
Conversely, CFH genotypes (C/T, C/C) were associated with higher odds of CD at 1 day post-CEA.
Statin use also correlated with reduced odds of CD at 1 day; no SNP associations were found at 1 month.

Conclusions:

Deleterious alleles in C5 and CFH SNPs may increase susceptibility to CD after CEA.
The complement cascade system appears to play a significant role in the development of postoperative cognitive dysfunction.
Further research is recommended to validate these genetic associations and their clinical implications.