目的：研究外伤性脑梗死患者血小板P选择素动态变化的临床意义。方法：用流式细胞仪测定42例外伤性脑梗死患者，50例无脑梗死外伤患者及40例正常对照者外周血血小板P选择素。结果：急性期(1周内)外伤性脑梗死患者P选择素明显高于无梗死脑外伤患者和健康对照组(Plt;0.01)。14 d时，外伤性脑梗死患者血小板P选择素表达，与无梗死脑外伤患者和健康对照组无显著差异(Pgt;0.005)。结论：P选择素参与外伤性脑梗死的病理过程，测定它们有利于外伤性脑梗死的早期诊治，改善预后。
Objective To explore the predictive value of superoxide dismutase (SOD) and serum amyloid A (SAA) in short-term poor prognosis in patients with lacunar infarction. Methods The clinical data of 185 patients who were diagnosed with lacunar infarction in the Second Affiliated Hospital of Wannan Medical College between January 1st and December 31st, 2021 were analyzed retrospectively. According to the modified Rankin Scale (mRS) score 3 months after discharge, the patients were divided into the good prognostic group (mRS≤2) and the poor prognostic group (mRS>2). Multiple logistic regression was used to analyze the independent risk factors of the short-term adverse prognosis of patients with lacunar infarction, and a risk prediction model (nomograph) was constructed. The predictive efficacy of SOD, SAA and nomograph for poor prognosis was analyzed by using the receiver operating characteristic curve. Calibration curve and decision curve analysis were used to evaluate the differentiation and clinical application value of the model. Results A total of 185 lacunar cerebral infarction patients with a mean age of (68.26±10.77) years were enrolled in this study, among whom 80 (43.2%) were males and 39 (21.1%) had adverse prognosis. Multiple logistic regression analysis showed that systolic blood pressure [odds ratio (OR)=1.028, 95% confidence interval (CI) (1.004, 1.052), P=0.021], diabetes [OR=4.939, 95%CI (1.703, 14.320), P=0.003], SAA [OR=1.089, 95%CI (1.052, 1.128), P<0.001], apolipoprotein B [OR=7.647, 95%CI (2.186, 26.753), P=0.001] were independent risk factors for poor prognosis in lacunar infarction patients, while the level of SOD [OR=0.979, 95%CI (0.965, 0.994), P=0.006] was a protective factor. The area under the curve of the nomograph for predicting the short term poor prognosis was 0.874 [95%CI (0.812, 0.936), P<0.001]. The goodness-of-fit test with the calibration curve indicated that the prediction probability was consistent with the actual occurrence probability (Hosmer-Lemeshow test P=0.295), and the decision curve indicated that the nomograph had good clinical application value. Conclusion SAA and SOD have good predictive value for short-term adverse prognosis of lacunar cerebral infarction patients, and the nomograph constructed based on them has a good differentiation and consistency, which can provide a basis for clinicians to evaluate the prognosis of lacunar cerebral infarction patients.
Ischemic lesions, lacunar infarcts and leukoaraiosis on head CT or MRI are commonly detected in patients with non-specific symptoms such as dizziness and headache or people undergoing healthy physical examinations. Although these imaging findings are mostly related to vascular disease, especially cerebral small vessel disease, it does not mean that long-term use of antiplatelet drugs and statins are required. On the basis of literature review and clinical experiences, the article points out that the treatment methods for such manifestations include determining whether these lesions are vascular lesions, searching for risk factors or causes such as aging, hypertension, diabetes mellitus, vascular stenosis, and psychological factors, and taking strategies for the corresponding prevention and management, provides a reference for the appropriate diagnosis and treatment of these imaging manifestations in clinical practice.
Objective To compare the risk factors between multiple cerebral infarction (MCI) and single cerebral infarction (SCI). This would be beneficial for carrying out corresponding prevention and treatment. Methods We prospectively registered consecutive cases of ischemic stroke in the neurological wards and divided them into two groups: MCI group and SCI group according to their clinical and imaging data. Firstly, the single variable analyses of 24 factors that could be related to the onset of MCI were conducted, and then the multivariate non-condition stepwise logistic regression was performed. Results Significant differences were noted between MCI group and SCI group in terms of age, gender, hpertension, diabetes, heart valvular disease, smoking, cerebral infarction history and first systolic blood pressure after admission. The logistic regression analyses showed that factors of age (OR=1.014, 95%CI 1.003 to 1.026), hypertension (OR=1.566, 95%CI 1.185 to 2.068), smoking (OR=1.473, 95%CI 1.052 to 2.061), cerebral infarction history (OR=1.948, 95%CI 1.326 to 2.864) were independent risk factors for MCI. Conclusion Compared to SCI, age, hypertension, smoking and cerebral infarction history were independent risk factors for MCI patients.
ObjectiveTo observe the dynamic changes of the concentrations of serum matrix metalloproteinase (MMP)-2 and MMP-9, and to discuss its clinical significance. MethodsFrom January to May 2014, 50 cases of clinically diagnosed cerebral infarction patients were included in the study as the cerebral infarction group, and we randomly selected 30 healthy volunteers at the same time in the same age group as the control group. The serum MMP-2 and MMP-9 of patients with acute cerebral infarction were detected in the onset of 24 hours, 7th day and 14th day respectively, which were compared with the control group accordingly. The patients with cerebral infarction were divided into small infarction group (1.5-3.0 cm), middle infarction group (3.1-5.0 cm) and large infarction group (>5.0 cm) according to the infraction volume. According to neurological functional deficit score they were divided into mild (0-15 points), moderate (16-30 points) and severe group (31-45 points). Changes of the level of MMP-9 and MMP-2 were compared in patients with different cerebral infarction volume and different impairment degree. ResultsFor the cerebral infarction group, the serum MMP-2 and MMP-9 levels were significantly higher in the onset of 24 hours, 7th day and 14th day[MMP-2:(2.36±0.76), (2.86±0.87), and (2.20±0.79) ng/mL; MMP-9:(238.8±99.6), (360.4±141.8), and (152.2±80.4) ng/mL] than the control group[MMP-2:(1.20±0.27) ng/mL; MMP-9:(124.8±28.2) ng/mL] (P<0.05). The larger the infarction volume was in the patients with acute ischemic stroke, the higher the levels of serum MMP-9 and MMP-2. The severer the neurologic impairment degree was in the patients with acute ischemic stroke, the higher the levels of serum MMP-9 and MMP-2 were. ConclusionFor patients with acute cerebral infarction, the levels of serum MMP-2 and MMP-9 are closely related to time of onset, infarct volume and neurological deficits, which can be used as an important basis to estimate the condition and assess the prognosis.
Objective To explore the relationship between neurofilament light chain (NfL) level and early neurological deterioration (END) after acute cerebral infarction (ACI). Methods The means of multi-center observational study were adopted to include patients with ACI within 72 hours of onset in 4 hospitals in Deyang between March 31, 2019 and July 31, 2021, to explore the risk factors of END. Results A total of 339 patients with ACI were included in this study, including 131 women and 208 men, aged (68.1±11.6) years. END occurred in 80 patients within 7 days after admission, and the incidence of END was 23.6%. The National Institute of Health Stroke Scale score and NfL level of patients without END were lower than those with END (P<0.05). Cox proportional risk model showed that NfL level [hazard ratio (HR)=1.037, 95% confidence interval (CI) (1.025, 1.050), P<0.001], admission National Institute of Health Stroke Scale score [HR=1.202, 95% CI (1.127, 1.282), P<0.001], initial blood glucose [HR=1.068, 95% CI (1.006, 1.133), P=0.030] were related to the occurrence of END. Conclusion The level of NfL, the severity of stroke, and the bloodglucose at admission are related to the occurrence of END in patients with ACI. Measures can be taken to control the above problems as soon as possible to prevent the occurrence of END.