Résumé
Objective:To investigate the clinical value of neck vascular ultrasound and homocysteine (Hcy) level in patients with cerebral infarction and carotid stenosis. Methods: Our research included 2 groups. Cerebral infarction group, n=115 patient who were treated in our hospital from 2012-01 to 2013-12, and Control group, n=110 healthy subjects from physical check-up. Neck vascular ultrasound was conducted to classify the degree of carotid stenosis as ①no stenosis, ②mild degree, the stenosis rate≤29%, ③moderate degree, the stenosis rate at 30%~69%,③severe degree, the stenosis rate at 70%~99%,④complete occlusion. Carotid plaque formation and vascular intima-media thickness (IMT) were examined by neck ultrasound. Blood levels of Hcy and triglyceride (TG), total cholesterol (TC), low-density lipoprotein cholesterol (LDL-C), high density lipoprotein cholesterol (HDL-C) were measured in clinical laboratory. Results: Compared with Control group, Cerebral infarction group had the higher rate of carotid stenosis 89.56%vs 10.91%, more plaque formation 73.91%vs 6.08%and increased IMT (1.85 ± 0.42) mm vs (0.75 ± 0.21) mm;higher blood levels of Hcy (42.32 ± 12.02) μmol/L vs (6.32 ± 2.45) μmol/L and higher rate of high blood Hcy syndrome 71.30%vs 3.63%;higher levels of TC (4.25 ± 1.12) mmol/L vs (1.63 ± 0.74) mmol/L and LDL-C (5.96 ± 1.36) mmol/L vs (2.32 ± 0.82) mmol/L, P Conclusion: The patients with cerebral infarction and carotid stenosis have obviously increased blood level of Hcy. Hcy may predict various degree of carotid stenosis in relevant patients.