Objective To investigate the relationship between the clinical manifestations,prognosis and histopathological findings of mucormycosis.Methods The clinical data on and pathological findings from 7 cases of mucormycosis confirmed by fungal culture in the institute from 1989 to 2006 were analyzed retrospectively.Results There was 1 case of hinocerebral mucormycosis and 6 cases of cutaneous mucormycosis,among them,2 were mucormycotic necrotizing fasciitis (MNF).The condition of patients with rhinocerebral mucormycosis or MNF aggravated rapidly and all the 3 patients died from mucormycosis. Histopathological examination showed mixed infiltrates of inflammatory cells as well as necrosis and angioin vasion.On the contrary,the condition of the remaining 4 patients with cutanesus mucormycosis,who presented mainly with indurated erythematous patch,progressed slowly,and 2 patients were cured.Histologically,the lesions were characterized by granulbmatous infiltration with a few hyphae;no typical angioinva sion phenomenon was noted.There was no evidence of perineural invasion with hyphae in any of the 7 cases.ConclusionIn patients with mucormycosis,histopathological findings characterized by mixed infiltrates of inflammatory cells,numerous hyphae and typical angioinvasion phenomenon may herald a poor prognosis.

Objective To investigate the risk factors for malignant middle cerebral artery infarction (MMI) in different age groups.Methods Patients with middle cerebral artery infarction were analyzed retrospectively.They were divided into a young and middle-aged group (＜ 60 years) and an elderly group (≥60 years).The demography and vascular risk factors,stroke etiologies,baseline blood pressure,drug use before onset and common blood test results in patients with MMI and non-MMI were compared in general cases and each age group.Multivariate logistic regression analysis was used to determine the independent risk factors for MMI.ResultsA total of 912 patients with middle cerebral artery infarction were enrolled,including 299 females (32.79％) and 613 males (67.21％);401 young and middle-aged patients (43.97％) and 511 elderly patients (56.03％);159 patients in the MMI group (17.43％),and 753 (82.57％) in the non-MMI group.Multivariable logistic regression analysis showed that hypertension (odds ratio [OR]6.962,95％ confidence interval [CI] 1.349-35.934;P=0.021) and NIHSS score (OR 1.551,95％ CI 1.384-1.737;P ＜0.001) were the independent risk factors for MMI.Subgroup analysis showed that NIHSS score (OR 1.402,95％ CI 1.239-1.588;P＜0.001) was an independent risk factor for MMI in young and middle-aged patients;hypertension (OR 10.752,95％ CI 1.213-95.295;P =0.033),diastolic blood pressure (OR 1.080,95％ CI 1.002-1.164;P=0.044),and NIHSS score (OR 1.504,95％ CI 1.281-1.765;P＜ 0.001) were the independent risk factor for MMI in the elderly patients,while systolic blood pressure (OR 0.938,95％ CI 0.893-0.986;P =0.011) was an independent protective factor.Conclusions The baseline NIHSS score was an independent risk factor for MMI in each age group.Hypertension and diastolic blood pressure were the independent risk factors for MMI in the elderly patients,while systolic pressure was an independent protective factor.Therefore,timely NIHSS assessment and appropriate hypertension management had important significance for the prevention and treatment of MMI.

OBJECTIVE: To observe the changes of blood pressure and S-100B, neuron specific enolase (NSE) protein in hypertensive dogs with high fat diet after catheter-based renal sympathetic denervation. METHODS: Twelve Beagles were divided into an interventional group (n=6) and a sham-operation group (n=6). After baseline measurements, the Beagles were fed with lard oil for 3 months. After 3 months, the interventional group had renal sympathetic denervation by percutaneous catheter based radiofrequency ablation and the control group had renal angiography. The blood pressure, plasma S-100B, and NSE before the operation and 3 days, 1 week, 2 weeks, 1 month, 2 months and 3 months after the operation were measured. RESULTS: The dogs had significantly higher levels of systolic blood pressure (SBP), diastolic blood pressure (DBP) and mean arterial pressure (MBP) compared to its baselines (P<0.05). The SBP, DBP and MBP in the interventional group were significantly lower than those in the control group 1 month and 3 months after the operation (P<0.05). Three months after the operation, renal angiography in all dogs revealed no sign of renal artery stenosis. Plasma S-100B and NSE expression in the interventional group were higher than those in the control group 3 days, 1 week and 2 weeks after the operation (P<0.05). CONCLUSION Renal sympathetic denervation can significantly reduce the SBP, DBP and MBP in hypertensive dogs. The plasma S-100B and NSE may be used as indicators for assessment of renal nerve injury after renal sympathetic denervation.
Animals ; Blood Pressure ; Catheter Ablation ; Dogs ; Hypertension ; metabolism ; Kidney ; innervation ; surgery ; Phosphopyruvate Hydratase ; metabolism ; S100 Calcium Binding Protein beta Subunit ; metabolism ; Sympathectomy