Recent studies suggest that lacunar infarction is a high risk ischemic cerebrovascular disease highly correlated with the time, which optimistic prognosis is not as good as previously thought.In addition, the role of macrovascular diseases has not been paid attention, it is not conducive to secondary prevention and early intervention for the etiology of lacunar infarction.This review focu-ses on application of imaging diagnosis of lacunar infarction, the etiology of non-lacunar infarct, and differential diagnosis of lacunar in-farction.

Objective To probe into the chnical value of strain rate imaging on the assessment of left atrial function in patients with hypertensive disorder comphcating pregnancy(HDCP).Methods Thirty two patients with HDCP and 20 control subjects were involved.Patients with HDCP were divided into 2 groups:17 with normal left ventricular mass index (LVMI) and 15 with left ventricular hypertrophy.These patients and controls underwent transthoracic echocardiography,strain and strain rate imaging examination.Atrial strain and strain rate imaging values of patients with HDCP were compared with those of controls.Multiple parameters were compared by one-way anova analysis.Results When compared with the controls,peak early diastolic strain rate (ESR) was significantly decreased in HDCP patients with normal LVMI and left ventricular hypertophy [(-1.13 ± 0.15),(-1.04 ± 0.29) s-1 vs.(-1.26 ± 0.23) s-1,P ＜ 0.05].Compared with the normal LVMI,peak late diastolic strain rate (ASR) was significantly decreased in controls and patients with left ventricular hypertrophy [(-1.23 ± 0.25) s-1 vs.(-1.36 ± 0.33),(-1.34 ± 0.32) s-1].There was no significant difference in the others (P ＞ 0.05).Conclusion Left atrial function is decreased in HDCP patients,which with left ventricular hypertrophy,the tendency is more obvious.

A L-arginine-producing mutant UN100-12(SG~(r),AE~(r)) was derived from Corynebacterium glutamicum ATCC138761 by combination treatment with ultraviolet(UV) and N-methyl-N-nitro-N-nitrosoguanidine(NTG). It could accumulate 16.6g/L L-arginine in the medium containing glucose as carbon source and ammonium sulfate as nitrogen source, when it was culrured at 30℃ for 4 days. And also this mutant has good stability of descendiblity of L-arginine.

As an important device of modern medical treatment,medical monitor is a combination of modern electronics technology,computer technology and medical technology.In this paper,the development of medical monitors in China is summarized,especially the main technique characteristics of medical monitor in Chinese market.The examples of monitors made in China are presented.

Objective:To evaluate the diagnostic value of 18G and 16G needle biopsy of breast lesions.Methods: Onr hundred and fifteen patients with breast lesions those were excised through surgery. Each lesion was under ultrasound-guided needle biopsy(US-CNB) with 18G and 16G, then underwent surgical resection of mass and pathological histology. Histological findings of US-CNB and the surgical specimens were analyzed for sensitivities, false negative rates, and underestimate rates.Results: Among 84 cases of breast cancer proved by surgical pathology, the sensitivity, specificity, false negative rate of 18G and 16G biopsy diagnosis were followed by 95.2% and 97.6%, 89.6% and 94.3%, 4.8% and 2.4%. Paired chi-square test showed no significant difference between the two methods.Conclusion: 18G and 16G needle biopsy has no significant difference in the diagnosis of breast lesions.

Chronic Periodontitis ; therapy ; Dental Implantation ; Dental Scaling ; Humans ; Male ; Middle Aged ; Oral Hygiene ; Periapical Periodontitis ; therapy ; Root Planing ; Tooth Extraction

Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Molar ; Root Canal Therapy ; methods

Objective To evaluate the clinical outcome of the technique of step-by-step in situ rod bending used in posterior internal fixation of lumbar burst fractures.Methods A retrospective case control analysis was conducted on 76 cases of lumbar burst fractures hospitalized between March 2007 and March 2014.There were 48 males and 28 females,with a mean age of 40.4 years (range,18-57 years).Fractured segments included L1 in 32 cases,L2 in 24,L3 in 14 and L4 in 6.According to the different rod bending methods,the subjects were divided into preliminary rod bending group (34 cases) and in suit rod bending group (42 cases).Operation time,amount of bleeding during and after operation,restoration of anterior vertebral height and Cobb angle,and visual analogue score (VAS) were compared between groups.Results Seventy patients were followed up for 12-36 months (mean,20.9 months).One patient in preliminary rod bending group presented internal fixation loosening,and had implant removal 9 months after operation.No implant breakage occurred.Comparison of preliminary rod bending group and in situ rod bending group showed significant differences in operation time [(88.1 ± 16.0)min vs.(79.9 ± 14.7)min],amount of bleeding during operation [(88.3 ± 21.2) ml vs.(74.0 ± 12.5) ml],amount of bleeding after operation [(71.5 ± 17.3)ml vs.(62.1 ± 16.0) ml],restoration of anterior vertebral height [(74.1 ±7.8) ％ vs.(79.5 ± 8.5) ％],and restoration of Cobb angle [(10.2 ± 2.7) °vs.(8.8 ± 2.6) °] (P ＜0.01 or 0.05).VAS presented no significant differences between preliminary rod bending group and in situ rod bending group before operation [(7.5 ± 0.9) points vs.(7.2 ± 1.0)points] and 1 week after operation [(2.9 ± 0.7) points vs.(3.0 ± 0.7) points] (P ＞ 0.05),while there was significant difference 9 months after operation [2.2±0.7)points vs.(1.9 ±0.7)points] (P＜0.01).Conclusion In suit rod bending for lumbar burst fractures has advantages over preliminary rod bending in terms of operation time,blood loss,precise restoration and back pain.

Objective To observe the effect of four-handed technique in light cured resin veneer in the treatment of dental fluorosis. Methods Eighty outpatients with dental fluorosis in our hospital from January 2011 to January 2014 were randomly divided into two groups: 40 in the study group were treated with four-handed technique and another 40 in the control group with one-doctor manual operation. The two groups were compared in terms of treatment duration and curative effect. Result The treatment duration in the study was significantly shorter than that of the control group and the curative effect was significantly better than that of the control group (all P<0.05). Conclusion As for the light cured resin veneer in the treatment of patients with dentalfluorosis in the process , the four-handed technique is better than one-doctor manual operation.

Objective To observe the clinical efficacy of bloodletting cupping plus Chinese medication in treating acne vulgaris due to wind-heat invading Lung Meridian.Method Sixty-six patients with acne vulgaris due to wind-heat invading Lung Meridian were randomized into a treatment group and a control group, 33 cases in each group. The treatment group was intervened by bloodletting cupping at Dazhui (GV 14) and Feishu (BL 13) plus Chinese medication; the control group was intervened by Chinese medication alone. The treatment was given 4 weeks sessions as a treatment course, for a total of 3 courses. The clinical efficacy and relapse rate were compared between the two groups.Result The total effective rate was 74.2% in the treatment group versus 96.9% in the control group, and the between-group difference was statistically significant (P<0.05). Three months after the intervention, the relapse rate was 3.1% in the treatment group versus 16.1% in the control group, and the between-group difference was statistically insignificant (P>0.05); 6 months after the intervention, the relapse rate was 18.8% in the treatment group versus 45.2% in the control group, and the between-group difference was statistically significant (P<0.05).Conclusion Bloodletting cupping plus Chinese medication can produce a more significant efficacy than Chinese medication alone in treating acne vulgaris, with a low long-term relapse rate and fewer adverse effects.