Signature and function of plasma exosome-derived circular RNAs in patients with hypertensive intracerebral hemorrhage.

Intracerebral hemorrhage (ICH) is one of the major causes of death and disability, and hypertensive ICH (HICH) is the most common type of ICH. Currently, the outcomes of HICH patients remain poor after treatment, and early prognosis prediction of HICH is important. However, there are limited effective clinical treatments and biomarkers for HICH patients. Although circRNA has been widely studied in diseases, the role of plasma exosomal circRNAs in HICH remains unknown. The present study was conducted to investigate the characteristics and function of plasma exosomal circRNAs in six HICH patients using circRNA microarray and bioinformatics analysis. The results showed that there were 499 differentially expressed exosomal circRNAs between the HICH patients and control subjects. According to GO annotation and KEGG pathway analyses, the targets regulated by differentially expressed exosomal circRNAs were tightly related to the development of HICH via nerve/neuronal growth, neuroinflammation and endothelial homeostasis. And the differentially expressed exosomal circRNAs could mainly bind to four RNA-binding proteins (EIF4A3, FMRP, AGO2 and HUR). Moreover, of differentially expressed exosomal circRNAs, hsa_circ_00054843, hsa_circ_0010493 and hsa_circ_00090516 were significantly associated with bleeding volume and Glasgow Coma Scale score of the subjects. Our findings firstly revealed that the plasma exosomal circRNAs are significantly involved in the progression of HICH, and could be potent biomarkers for HICH. This provides the basis for further research to pinpoint the best biomarkers and illustrate the mechanism of exosomal circRNAs in HICH.

Lower total protein and absence of neuronavigation are novel poor prognostic factors of endoscopic hematoma removal for intracerebral hemorrhage.

OBJECTIVES: Endoscopic hematoma removal is widely performed for the treatment of intracerebral hemorrhage. We investigated the factors related to the prognosis of intracerebral hemorrhage after endoscopic hematoma removal. MATERIALS AND METHODS: From 2013 to 2019, we retrospectively analyzed 75 consecutive patients with hypertensive intracerebral hemorrhage who underwent endoscopic hematoma removal. Their characteristics, including neurological symptoms, laboratory data, and radiological findings were investigated using univariate and multivariate analysis. Complications during hospitalization, Glasgow Coma Scale (GCS) score on day 7, and modified Rankin Scale (mRS) score at 6 months were considered as treatment outcomes. RESULTS: The mean age of the patients (33 women, 42 men) was 71.8 (36-95) years. Mean GCS scores at admission and on day 7 were 10.3 ± 3.2 and 11.7 ± 3.8, respectively. The mean mRS score at 6 months was 3.8 ± 1.6, and poor outcome (mRS score ranging from 3 to 6 at 6 months) in 53 patients. Rebleeding occurred in 4 patients, and other complications in 15 patients. Multivariate analysis revealed that older age, hematoma in the basal ganglia, lower total protein level, higher glucose level, and absence of neuronavigation were associated with poor outcomes. Of the 75 patients, 9 had cerebellar hemorrhages, and they had relatively favorable outcomes compared to those with supratentorial hemorrhages. CONCLUSION: Several factors were related to the prognosis of intracerebral hemorrhage after endoscopic hematoma removal. Lower total protein level at admission and absence of neuronavigation were novel factors related to poor outcomes of endoscopic hematoma removal for intracerebral hemorrhage.

Serum calcium levels at admission is associated with the outcomes in patients with hypertensive intracerebral hemorrhage.

BACKGROUND/OBJECTIVE: Hypertensive spontaneous intracerebral hemorrhages (ICH) cause significant morbidity and mortality. In this study, we aimed to investigate the association between calcium level at admission and outcome in hypertensive ICH patients. METHODS: 658 hypertensive ICH patients were enrolled from January 2012 to January 2016 in this retrospective study, and demographic, clinical, laboratory, radiographic, and outcome data were collected. The associations between serum calcium level and initial hematoma volume, hematoma enlargement and functional outcome were assessed. RESULTS: Lower calcium level at admission was associated with larger initial hematoma volumes, baseline NIHSS and mRSscore (p < .05), but not with platelet count, activated partial thromboplastin time and international normalized ratio on admission (p > .05). For outcome assessment, 30 days mortality and 6 months mRS were adjusted for age, gender and time from onset to admission, cigarette smoking, alcohol drinking, history of hypertension, baseline NIHSS score, Baseline mRS score and hematoma position, lower calcium level at admission was associated with worse outcomes. CONCLUSION: Low calcium level at admission is associated with worse outcome and might be a prognostic factor for acute ICH.

N-Terminal Pro-Brain Natriuretic Peptide Concentrations After Hypertensive Intracerebral Hemorrhage: Relationship With Hematoma Size, Hyponatremia, and Intracranial Pressure.

INTRODUCTION:: The role of N-terminal pro-brain natriuretic peptide (NT-proBNP) in patients with hypertensive intracerebral hemorrhage (HICH) is poorly understood. This study aimed to investigate the secretion pattern of NT-proBNP in patients with HICH and to assess its relationship with hematoma size, hyponatremia, and intracranial pressure (ICP). METHODS:: This prospective study enrolled 147 isolated patients with HICH. Blood samples were obtained from each patient, and values of serum NT-proBNP, hematoma size, blood sodium, and ICP were collected for each patient. RESULTS:: The peak-to-mean concentration of NT-proBNP was 666.8 ± 355.1 pg/mL observed on day 4. The NT-proBNP levels in patients with hematoma volume >30 mL were significantly higher than those in patients with hematoma volume <30 mL ( P < .05). In patients with severe HICH, the mean concentration of NT-proBNP was statistically higher than that in patients with mild-moderate HICH ( P < .05), and the mean level of NT-proBNP in hyponatremia group was significantly higher than that in normonatremic group ( P < .05). In addition, the linear regression analysis indicated that serum NT-proBNP concentrations were positively correlated with ICP ( r = .703, P < .05) but negatively with blood sodium levels only in patients with severe HICH ( r = -.704, P < .05). The serum NT-proBNP levels on day 4 after admission were positively correlated with hematoma size ( r = .702, P < .05). CONCLUSION:: The NT-proBNP concentrations were elevated progressively and markedly at least in the first 4 days after HICH and reached a peak level on the fourth day. The NT-proBNP levels on day 4 were positively correlated with hematoma size. There was a notable positive correlation between plasma NT-proBNP levels and ICP in patients with severe HICH. Furthermore, only in patients with severe HICH, the plasma NT-proBNP levels presented a significant correlation with hyponatremia, which did not occur in patients with mild-moderate HICH.

Elevated serum IL-11, TNF α, and VEGF expressions contribute to the pathophysiology of hypertensive intracerebral hemorrhage (HICH).

To study the changes in serum interleukin-11 (IL-11), tumor necrosis factor-α (TNF-α) and vascular endothelial growth factor (VEGF) expressions following hypertensive intracerebral hemorrhage (HICH), and explore their associations with disease severity and prognosis. Serum IL-11, TNF-α, and VEGF levels after 1, 3, 7, and 14 days after HICH were assayed using enzyme-linked immunosorbent assay (ELISA), and neurological deficit score (NDS) were recorded at admission and discharge for 99 HICH cases. Then 45 healthy controls were included and assayed for serum IL-11, TNF-α, and VEGF levels. Serum IL-11, TNF-α, and VEGF levels were higher in HICH patients than healthy controls (all P < 0.05). TNF-α was higher at the 3rd day following disease onset than other time points (all P < 0.05), while IL-11 and VEGF peaked at the 7th day and dropped below baseline values at the 14th day (all P < 0.05). Serum IL-11 was positively correlated with TNF-α (r = 0.70, P < 0.05) and VEGF (r = 0.72, P < 0.05). Serum TNF-α was positively correlated with VEGF (r = 0.46, P < 0.05). Serum IL-11, TNF-α, and VEGF were associated with disease severity in HICH patients. Patients with more severe disease tended to have higher NDS at admission, and higher IL-11, TNF-α, and VEGF during treatment were associated with higher NDS at discharge. Serum IL-11, TNF-α, and VEGF may involve in the pathophysiology of HICH, thus IL-11, TNF-α, and VEGF may be prognostic factors for post HICH neurologic damage.

Relationship of plasma matrix metalloproteinase-9 and hematoma expansion in acute hypertensive cerebral hemorrhage.

In the present study, we aimed to investigate the relationship of plasma matrix metalloproteinase-9 (MMP-9) and hematoma expansion (HE) in acute hypertensive cerebral hemorrhage (AHCH) (HE-in-AHCH). Patients with hypertensive cerebral hemorrhage, confirmed by head computed tomography (CT) within 12 h of onset, were prospectively collected. Venous blood was sampled within 4 h of the confirmation to determine the serum MMP-9 concentration. The blood pressure and National Institute of Health Stroke Score of the patients were recorded on hospital admission. CT re-scanning was performed within 42-54 h of the first head CT examination or immediately after worsening of the patients' consciousness disorder. The relationship between MMP-9 level and HE was analyzed. A total of 186 patients were included. Of these patients, 41 had HE (22.0%). Multivariate logistic regression analysis showed that, in addition to the short interval between onset and the first CT examination, and the irregularity of hematoma shape, increasing MMP-9 level was an independent risk factor for HE-in-AHCH (OR value = 15.65, 95% CI: 5.30-46.15). Moreover, increasing plasma MMP-9 level was identified as an independent risk factor in patients with HE-in-AHCH.

HindIII polymorphism in the lipoprotein lipase gene and hypertensive intracerebral hemorrhage in the Chinese Han population.

BACKGROUND: To investigate the relationship between the HindIII polymorphism and hypertensive intracerebral hemorrhage (HIH) and lipid metabolism. METHODS: A polymerase chain reaction-restriction fragment length polymorphism assay and the chain termination DNA sequencing method were used to determine the HindIII genotypes of 267 subjects, which included 120 cerebral hemorrhagic patients and 147 controls. The fasting levels of lipids and glucose in the plasma were used to measure the effect of genotype on HIH risk factors. RESULTS: The frequency of the T allele of the HindIII polymorphism in the HIH group was 90.8%. The frequency of the G allele was 9.2%. In the control group, the frequencies were 82.3% T and 17.7% G, which indicated that the proportion of the G allele in the HIH patient group was significantly lower than in the control group (P<.05). The frequency of GG+GT genotypes in HIH patients (P<.05) and the plasma triglyceride (TG) levels in these patients (P<.05) were also lower than in the control group. The levels of plasma TG, low-density lipoprotein cholesterol, glucose, systolic blood pressure, and diastolic blood pressure in the HIH group were higher than in the controls (P<.05). After controlling for risk factors related to HIH, the HindIII G allele was negatively correlated with the incidence of HIH (odds ratio=.417, 95% confidence interval: .193-.901). CONCLUSIONS: The HindIII G allele may be a protective factor against the development of HIH among the Han Chinese population.

The diagnosis and management of cerebrovascular disease in diabetes.

Cerebrovascular disease is a leading cause of morbidity and mortality in diabetes. Compared with nondiabetic patients, diabetic patients have at least twice the risk for stroke, earlier onset of symptoms, and worse functional outcomes. Approximately 20 % of diabetic patients will die from stroke, making it one of the leading causes of death in this population. Effective strategies for primary and secondary prevention of stroke have been developed in research cohorts that included both diabetic and nondiabetic patients. Nevertheless, prevention in diabetes has some specific considerations. In this paper, we summarize evidence to guide the diagnosis and management of stroke in diabetic patients. We propose that diabetic stroke patients should have a robust risk assessment to target interventions, like other patients with cerebrovascular disease, but with special attention to glycemic control and lifestyle modification.

Relationship between serum leptin levels and clinical outcomes of hypertensive intracerebral hemorrhage.

Circulating leptin is associated with cardiovascular events but the relationship between leptin and the clinical outcomes of intracerebral hemorrhage (ICH) is unclear. This study was to investigate the relationship between circulating leptin and the short-term clinical outcomes of ICH. Fifty-seven patients with hypertensive ICH (stroke group), 50 patients with hypertension (hypertension group), and 41 healthy subjects (control group) were recruited to this study. Serum levels of leptin were measured by radioimmunoassay. The serum level of leptin in the stroke group (14.6 ± 3.3 ng/L) was significantly higher than in the hypertension (10.2 ± 2.9 ng/L, P < 0.05) and control group (4.7 ± 3.3 ng/L, P < 0.01). Nine patients (15.8%) in the stroke group died during hospitalization. The mean National Institute of Health Stroke Scale (NIHSS) score of the surviving patients at admission and before discharge was 16 ± 6 and 9 ± 5, respectively (P < 0.01). There was a significant correlation between the serum leptin level and predischarge NIHSS scores (r = 0.62, P < 0.01). After adjusting age, sex, ICH volume and location, fasting blood glucose, fasting insulin levels, and systolic blood pressure (SBP) multivariate analysis showed that a high leptin level (>10 ng/L) was an independent predictor for in hospital mortality (adjusted risk ratio (RR), 3.6; 95% confidence interval (CI): 1.22-17.62; P = 0.02). In conclusion, serum leptin levels were increased in patients with hypertensive ICH. High leptin levels were associated with a poor functional recovery following ICH.

Involvement of HLDF protein and anti-HLDF antibodies in the mechanisms of blood pressure regulation in healthy individuals and patients with stable hypertension and hypertensive crisis.

We studied the relationships between the blood serum levels of human leukemia differentiation factor HLDF, idiotypic and anti-idiotypic antibodies to HLDF, and clinical indicators of cardiovascular function in apparently healthy individuals and patients with essential hypertension and cerebral hypertensive crisis. Markedly reduced HLDF levels and anti-HLDF antibody titers were found in the blood of the examined patients. Correlations between HLDF levels, duration of hypertension, and systolic and diastolic BP were revealed. These findings suggest that the studied molecular factors are involved in the mechanisms of BP regulation under normal conditions and during hypertension development. The protein HLDF and anti-HLDF antibodies can be considered as biomarkers for early diagnosis of hypertension and its cerebral complications.

Analysis of thrombin-antithrombin complex contents in plasma and hematoma fluid of hypertensive intracerebral hemorrhage patients after clot removal.

BACKGROUND AND PURPOSE: Animal experiments indicate that the cerebral thrombin is associated with secondary brain damage after intracerebral hemorrhage (ICH). This study was aimed to investigate the concentrations of thrombin-antithrombin complex (TAT) in hematoma fluid and plasma of the patients with ICH after surgery and analyze the correlation between TAT complex levels and severity of ICH. METHODS: Sixty patients with ICH were enrolled. Craniotomy for removal of intracranial blood clot was performed within 24h after ICH. Hematoma fluid and plasma were collected on postoperative days 1, 2, and 4. The plasma obtained from healthy subjects and cerebrospinal fluid from patients without cerebrovascular diseases served as controls, respectively. Enzyme-linked immunosorbent assay was used to determine the concentrations of TAT complex in the patients and controls. RESULTS: TAT complex concentrations in both postoperative plasma and hematoma fluid of patients with ICH were significantly higher than those of the controls (P<0.01). In patients with ICH, hematoma fluid had a higher TAT complex level than plasma (P<0.01). The preoperative hemorrhage volume and postoperative TAT complex levels in plasma and hematoma fluid correlated positively with National Institutes of Health stroke scale and negatively with Glasgow coma score (P<0.01). CONCLUSION: This study indicates that TAT complex levels of plasma and hematoma fluid correlate positively with the severity of ICH. Determination of the plasma TAT complex concentration is helpful for the evaluation of the severity of post-ICH brain injury.

Low Serum Uric Acid Levels Promote Hypertensive Intracerebral Hemorrhage by Disrupting the Smooth Muscle Cell-Elastin Contractile Unit and Upregulating the Erk1/2-MMP Axis.

Intracerebral hemorrhage (ICH) is a catastrophic stroke with high mortality, and the mechanism underlying ICH is largely unknown. Previous studies have shown that high serum uric acid (SUA) levels are an independent risk factor for hypertension, cardiovascular disease (CVD), and ischemic stroke. However, our metabolomics data showed that SUA levels were lower in recurrent intracerebral hemorrhage (R-ICH) patients than in ICH patients, indicating that lower SUA might contribute to ICH. In this study, we confirmed the association between low SUA levels and the risk for recurrence of ICH and for cardiac-cerebral vascular mortality in hypertensive patients. To determine the mechanism by which low SUA effects ICH pathogenesis, we developed the first low SUA mouse model and conducted transcriptome profiling of the cerebrovasculature of ICH mice. When combining these assessments with pathological morphology, we found that low SUA levels led to ICH in mice with angiotensin II (Ang II)-induced hypertension and aggravated the pathological progression of ICH. In vitro, our results showed that p-Erk1/2-MMP axis were involved in the low UA-induce degradation of elastin, and that physiological concentrations of UA and p-Erk1/2-specific inhibitor exerted a protective role. This is the first report describing to the disruption of the smooth muscle cell (SMC)-elastin contractile units in ICH. Most importantly, we revealed that the upregulation of the p-Erk1/2-MMP axis, which promotes the degradation of elastin, plays a vital role in mediating low SUA levels to exacerbate cerebrovascular rupture during the ICH process.

Association of Sex with Serum Potassium, Sodium, and Calcium Disorders after Hypertensive Intracerebral Hemorrhage.

OBJECTIVE: To determine the association of sex with serum potassium, sodium, and calcium disorders in patients with hypertensive intracerebral hemorrhage, and meanwhile investigate other risk factors. METHODS: A total of 516 patients with hypertensive intracerebral hemorrhage were retrospectively enrolled. The clinical characteristics were collected. Serum potassium, sodium, and calcium levels were measured. Multivariate analysis was performed to identify risk factors. RESULTS: Hypokalemia is the most common electrolyte disorder (50.2%) after hypertensive intracerebral hemorrhage, followed by hyponatremia (19.8%), hypocalcemia (13.8%), hypernatremia (12.0%), hyperkalemia (2.5%), and hypercalcemia (0.4%). Most of the electrolyte disorders occurred within 1 week after the onset of hypertensive intracerebral hemorrhage. The incidence rate of hypokalemia was higher in women than in men (61.7% vs. 42.3%, χ2 = 18.676; P < 0.001), but the incidence rates of hyponatremia, hypocalcemia, and hypernatremia were not statistically different between women and men (all P > 0.05). Sex was associated with hypokalemia with women having increased risk, whereas sex was not associated with hypernatremia, hypocalcemia, and hyponatremia. In addition, surgical treatment was a risk factor of hypokalemia, hyponatremia, hypocalcemia, and hypernatremia, both breaking into ventricle and age were risk factors of hyponatremia and hypocalcemia, and bleeding site was a risk factor of hypocalcemia and hypernatremia. CONCLUSIONS: In the treatment of female patients with hypertensive cerebral hemorrhage, the clinician should pay attention to potassium chloride supplementation and monitor its intensity. Within 1 week after intracerebral hemorrhage, individuals most prone to electrolyte disorders determined according to the identified risk factors should be monitored as early as possible, and the disorders should be promptly corrected.

Hemoglobin Concentration Affects Hypertensive Basal Ganglia Hemorrhage After Surgery: Correlation Analysis in a High-Altitude Region.

OBJECTIVE: Hypertensive cerebral hemorrhage leads to greater mortality and worse functional outcomes at high altitudes. Experimental studies have suggested that hemoglobin can lead to increased perihemorrhagic edema after intracerebral hemorrhage. METHODS: Patients were divided into a high-hemoglobin (H-H) group (>180 g/L) and a low-hemoglobin (L-H) group (≤180 g/L). The distance from the cortex to the midline was used to indicate the degree of edema. At 1, 7, 14, and 21 days, the patients' status was scored using the Glasgow coma scale, and survival was plotted using Kaplan-Meier survival curves. Pearson correlation analysis showed that the difference between the postoperative and preoperative Glasgow coma scale score correlated with the hemoglobin concentration. The Glasgow outcome scale was used to assess neurological recovery after 6 months. RESULTS: On days 7, 14, and 21, the edema of the H-H group was significantly greater than that of the L-H group (P < 0.01 and P < 0.001, respectively). The edema of the H-H group peaked at 14 and 21 days, but that of the L-H group peaked at 7 days. The hemoglobin concentration and postoperative neurological recovery had a linear relationship in the H-H group. The L-H group had greater survival compared with the H-H group (P < 0.05). The L-H group had higher Glasgow outcome scale scores compared with the H-H group (P < 0.05). CONCLUSION: The hemoglobin concentration affects the mortality and morbidity from hypertensive cerebral hemorrhage in high-altitude regions, and a linear relationship exists between hemoglobin concentration and neurological recovery in the H-H group.

Different Techniques of Minimally Invasive Craniopuncture for the Treatment of Hypertensive Intracerebral Hemorrhage.

OBJECTIVE: Efficacy of minimally invasive craniopuncture with the YL-1 puncture needle (hard-channel) and soft drainage tube (soft-channel) in treating hypertensive intracerebral hemorrhage (HICH). MATERIALS AND METHODS: A total of 150 patients with HICH were randomly assigned into 3 groups: conservative group (n = 50), hard-channel group (n = 50), and soft-channel group (n = 50). Computed tomography, National Institutes of Health Stroke Scale (NIHSS) and the levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), superoxide dismutase (SOD), and malondialdehyde (MDA) in serum and in drainage fluid were examined on days 2, 4, and 6 after operation. RESULTS: Compared with the conservative group, the serum levels of IL-6, TNF-α, and MDA were decreased and SOD was increased (P < 0.05); volumes of hematoma and perihematomal edema as well as NIHSS were reduced (P < 0.05) in minimally invasive groups on days 7, 14, and 28 after operation. Compared with the hard-channel group, the serum levels of IL-6, TNF-α, MDA, and SOD showed the same trend as above in the soft-channel group. In the soft-channel group, MDA was reduced and SOD was increased in brain drainage fluid on days 2, 4, and 6 (P < 0.05); volumes of hematoma and perihematomal edema on days 14 and 28 were found to be reduced compared with the hard-channel group (P < 0.05). There was no significant difference of volumes of hematoma and perihematomal edema on day 7 between minimally invasive groups. NIHSS of the soft-channel group appeared to be significantly reduced on days 7, 14, and 28 after operation (P < 0.05). CONCLUSIONS: Soft-channel minimally invasive craniopuncture is an ideal technique for treating HICH, with advantages of alleviating cerebral edema, reducing oxidative stress, and inhibiting inflammatory response.

Predicting Recurrent Hypertensive Intracerebral Hemorrhage: Derivation and Validation of a Risk-Scoring Model Based on Clinical Characteristics.

OBJECTIVE: To develop and validate a risk-scoring model for predicting recurrent hypertensive cerebral hemorrhage (RHCH) occurring within 1 year after initial hypertensive cerebral hemorrhage and to facilitate preemptive clinical intervention for the prevention of secondary hemorrhage. METHODS: Patient gender, age, blood pressure, Glasgow Coma Scale (GCS) score, location of cerebral hemorrhage, surgery, past medical history, blood biochemical parameters, and Glasgow Outcome Scale score were analyzed using logistic regression analysis to determine independent predictors of RHCH. A risk-scoring model was constructed by assigning coefficients to each predictor and validating it in another independent cohort. The accuracy of the model was then assessed by the area under the receiver operating characteristic curve (AUC), and the calibration ability of the model was assessed by the Hosmer-Lemeshow test. RESULTS: Of 520 patients in the derivation cohort, 38 developed RHCH within 1 year after discharge. Independent risk factors of RHCH were age >60 years; stage 3 hypertension at admission; GCS score 9-12 (admission); GCS score 3-8 (discharge); history of cerebral ischemic stroke, smoking, alcoholism; and plasma homocysteine (Hcy) level ≥10 µmol/L. The recurrence rates for the low-risk (0-13 points), intermediate-risk (14-26 points), and high-risk (27-39 points) groups were 1.73%, 6.11%, and 57.14%, respectively (P < 0.001). The corresponding rates in the validation cohort, of whom 10/107 (9.35%) developed RHCH, were 3.45%, 7.14%, and 71.43%, respectively (P < 0.001). The risk-scoring model showed good discrimination in both the derivation and validation cohorts, with an AUC of 0.802 versus 0.863. The model also showed good calibration ability (the Hosmer-Lemeshow P values of the two cohorts were 0.532 vs. 0.724). CONCLUSIONS: This model will help identify high-risk groups for RHCH in order to facilitate and improve preemptive clinical intervention.

Changes of TXA2 and PGI2 during postoperative hypertensive crisis in patients with hypertensive intracerebral hemorrhage.

In order to explore the changes and the roles of TXA2 and PGI2 during postoperative hypertensive crisis in patients with hypertensive intracerebral hemorrhage, 31 cases subject to craniotomy were divided into three groups: group A, 9 patients with postoperative hypertensive crisis; group B, 13 patients without postoperative hypertensive crisis; and group C, 9 patients without history of hypertension and hypertensive intracerebral hemorrhage. TXA2, TXB2, 6-keto-PGF1 alpha and PGI2 were measured after operation in the three groups respectively. The postoperative blood pressure in group A, including SBP and DBP, was elevated more obviously than that in the other two groups. TXA2 and PGI2 in group A were significantly higher than those in other two groups (P<0.01). Moreover, the ratio of TXB2 to 6-keto-PGF1 alpha in group A was significantly higher than that in other two groups (P<0.05). The increase of TXA2 and the relative inadequacy of prostacyclin, especially 6-keto-PGF1 alpha, may play roles in the postoperative hypertensive crisis. And the increased value of TXB2 to 6-keto-PGF1 alpha could provide the basis for diagnosis of postoperative hypertensive crisis.

Serum Copper Homeostasis in Hypertensive Intracerebral Hemorrhage and its Clinical Significance.

This study was to investigate the alterations of serum copper homeostasis after hypertensive intracerebral hemorrhage (ICH), which is not yet clear. We recruited 85 hypertensive ICH patients and determined their serum levels of total copper (TCu), small molecule copper (SMC), and ceruloplasmin (Cp). Sera from 32 healthy persons and 12 primary hypertension patients were collected and analyzed as well. Serum TCu levels in ICH patients were tested at three time points (on admission, day 3, and day 7) and found to be higher than that in hypertension patients (p < 0.05). The serum SMC levels in hypertension patients and ICH patients at three time points were higher than that in healthy controls (p < 0.05). Higher serum SMC levels on days 3 and 7 were associated with death in the hospital. Additionally, higher serum SMC levels on the seventh day were associated with poor outcome at discharge. High serum Cp levels on admission, as well as low serum Cp levels on the seventh day, were associated with death in the hospital (p = 0.002 and p = 0.034, respectively). Our findings indicated that declines in serum Cp and increases in serum SMC are correlated with lethal or poor outcome in hypertensive ICH patients, possibly as a result of contributions to secondary injury of brain after hemorrhage due to impairment of iron transport and enhanced oxidative stress.

Lower Ionized Calcium Predicts Hematoma Expansion and Poor Outcome in Patients with Hypertensive Intracerebral Hemorrhage.

BACKGROUND AND OBJECTIVE: We tested the hypothesis that ionized calcium levels at admission are associated with early hematoma expansion and functional outcome in patients with hypertensive intracerebral hemorrhage (HICH). METHODS: Patients presenting with HICH were enrolled in the observational cohort study that prospectively collected age, sex, blood pressure, history of diabetes and smoking, time from symptom onset to initial computed tomography (CT), admission ionized calcium (iCa) and total calcium (tCa), coagulation function, Glasgow Coma Scale (GCS), and postoperative modified Rankin Scale score. Hematoma reconstruction on CT was performed to measure hematoma volumes. Hematoma expansion (HE) was defined as an increase of more than 30% or 6 mL in HICH volume. We performed univariate and multivariate analyses to assess for association of iCa level with early HE and functional outcome. RESULTS: We included 111 patients with HICH for analysis. Admission serum iCa was 1.10 mmol/L in patients with HE and 1.17 in patients without HE. Univariate analysis indicated significant difference of GCS, initial HICH volume, iCa, and tCa between the HE and non-HE groups (P < 0.05). Lower admission iCa (less than 1.12 mmol/L) was associated with HE (odds ratio [OR] 0.300, 95% confidence interval [CI] 0.095-0.951, P = 0.041) after adjustment for age, blood pressure, GCS score, time to initial CT scan, baseline HICH volume, prothrombin time, and tCa. Furthermore, predictive factors of poor outcome included iCa (OR 0.192, 95% CI 0.067-0.554, P = 0.002) and GCS score (OR 0.832, 95% CI 0.722-0.959, P = 0.011). CONCLUSIONS: These data support the hypothesis that lower ionized calcium is associated with early hematoma expansion and poor outcome in patients with hypertensive intracerebral hemorrhage.

Development and validation of the hypertensive intracerebral hemorrhage prognosis models.

To develop and validate the prognosis model of hypertensive intracerebral hemorrhage based on admission characteristics, which would be applied to predict the 3-month outcome.For developing the prognosis models, we studied data from 325 patients with retrospectively consecutive hypertensive intracerebral hemorrhage admitted between 2012 and 2016. The predictive value of admission characteristics was tested in logistic regression models, presenting 3-month outcome as the primary outcome. The performance of the models was tested by discrimination and calibration. After development, internal and external validations were used to test the function.The multivariate analysis of logistic regression indicated that age, Glasgow coma scale score, pupillary light reflex, hypoxemia, intracerebral hemorrhage volume, blood glucose, and D-dimer level were independent factors of the hypertensive intracerebral hemorrhage prognosis model. The prognosis model based on those admission risk factors worked well. The receiver operating characteristic curve was used to analyze the discriminant ability of model A, model A + B, and model A + B + C. Specifically, the area under the receiver operating characteristic curve increased from 0.816 (model A; 95% CI, 0.760-0.872) to 0.913 (model A + B + C; 95% CI, 0.881-0.946), and the models were not overoptimistic and were applicably confirmed by internal and external validations respectively.This prognosis model could be used to predict the prognosis of patients with hypertensive intracerebral hemorrhage early, simply and accurately, contributing to the clinical treatment eventually.