Evidence of the appropriate amount of fluid intake during the first few days after acute stroke was scarce. Concerns were raised in patients with acute malignant middle cerebral infarction, who tended to have malignant brain edema later. The purpose of the study was to evaluate the effect of fluid intake on the occurrence of malignant brain edema in patients with acute middle cerebral artery infarction. Patients with acute middle cerebral artery infarction who had National Institute of Health Stroke Scale (NIHSS) score of at least 15 were included. Baseline characteristics and amount of fluid intake during the first few days were compared in patients with and without malignant brain edema. One hundred ninety-three patients were studied. Mean NIHSS score was 20. Malignant brain edema occurred in 69 patients (36%). Higher amount of fluid intake (>1650 ml or >28 ml/kg/day or >93% of daily maintenance fluid) showed a significant association with malignant brain edema (OR = 13.86, 95% CI 5.11-37.60, p value <0.001). Decompressive surgery was performed in 35 patients (18%). With mean follow-up of 12 months, 49 patients (49/184, 27%) had favorable outcomes (modified Rankin scale (mRS) 0-2) at final follow-up. Seventy-nine patients (79/184, 43%) died. In the subgroup of patients with malignant brain edema, 39 patients (39/65, 60%) died and only 11% (7/65 patients) had favorable outcome. High amount of fluid intake in the first few days of acute middle cerebral infarction was related to the occurrence of malignant brain edema.
Soluble thrombomodulin (sTM) has been proposed as a potential marker of ischemic stroke. Results from previous studies remain controversial among different populations. We performed an analysis of plasma levels of sTM in Thai patients with acute ischemic stroke and determined whether sTM levels correlate with stroke subtypes, severity, and risk factors. Ninety-three patients and 76 controls were enrolled. Blood samples were obtained within 24 hours after stroke onset. Plasma sTM levels, measured using quantitative enzyme-linked immunosorbent assay, were significantly higher in patients than controls (P < .005), with the mean ± standard deviation (SD) levels of 3.08 ± 1.05 and 2.57 ± 1.15 ng/mL, respectively. Plasma levels of sTM in patients with cardioembolic subtype were significantly higher than in patients with other stroke subtypes, with the mean ± SD levels of 3.79 ± 1.26, 2.38 ± 0.68 (P < .009), and 2.38 ± 0.44 (P < .05) ng/mL for cardioembolism, large artery atherosclerosis, and small artery occlusion, respectively. Plasma sTM levels were not associated with stroke severity and risk factors of stroke; however, there was a slight relationship between high sTM levels and the presence of atrial fibrillation in the patient group. In conclusion, plasma sTM levels were increased in Thai patients with cardioembolic stroke and may be a potential marker during the acute phase.
Although ANN models showed similar performance, the classification results were not totally alike, suggesting an advantage of using multiple classification models over a single model. The predictive results are supported by previous statistical studies on different datasets, suggesting generalizability of the utility of ANN analyses.
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