# The Relationship between CT Angiography Collateral Score and Biochemical Parameters during Acute Ischemic Stroke Caused by Middle Cerebral Artery Infarct

## TL;DR

This study explores how biochemical markers relate to brain blood vessel collateral scores in stroke patients, showing significant differences in outcomes based on these factors.

## Contribution

The study identifies biochemical parameters that correlate with collateral vessel profiles in acute ischemic stroke patients.

## Key findings

- Patients with a malignant collateral profile had a significantly higher NIHSS score (27) compared to those with a good profile (9).
- Biochemical parameters like uric acid, cholesterol, and CRP showed statistically significant differences based on collateral distribution.
- The findings suggest biochemical factors influence collateral vessel development independent of age and gender.

## Abstract

Background/Objectives: Collateral development after AIS is important for prognosis and treatment. In this study, we aimed to investigate the relationship and correlation between biochemical parameters and CT angiography collateral score within the first 9 h and its effect on the neurological outcomes of patients with AIS due to MCA infarction. Methods: A total of 98 patients with MCA infarction were hospitalized for diagnosis and treatment after undergoing CT angiography within 9 h of suffering a stroke. Demographic data, admission biochemical parameters, hospitalization data, and discharge NIHSS scores were recorded. Souza’s scoring system for collateral distribution was used to evaluate collaterals. Souza CS system and clinical disability comparison outcomes identified. Results: According to the Souza CS system, 13 patients were in the malignant profile category, and 85 patients were in the good profile category. The NIHSS value of patients with a malignant profile was 27, while the mean NIHSS value of patients with a good profile was 9. There was a statistically significant difference in uric acid, total cholesterol, triglyceride, HDL cholesterol, CRP, hsCRP, D-Dimer, troponin I, vitamin B12, fibrinogen, NSE, homocysteine, aPTT, and INR levels according to collateral distribution. Conclusions: This study demonstrates that biochemical parameters can influence the distribution of malignant and benign collaterals in AIS independent of age and gender.