Objective To evaluate the role of the fractional dilatation and curettage (D&C) in the diagnosis of atypical hyperplasia of endometrium. Methods The retrospective analysis was performed in 48 patients diagnosed as atypical hyperplasia of endometrium and treated in our hospital from Aug.2009 to Dec.2010. We compared the pathology results of D&C with hysterectomy specimens, and investigated the reasons for the difference. Results The six patients (12.5%) with mild atypical hyperplasia of endometrium still presented with significant pathological changes after D&C (χ2 = 5.90, P＜0.05), 11 cases (22.9%) in 14 patients(29.2%) with moderate atypical hyperplasia (χ2=0.49, P＞0.01), 18 cases (100%) in patents with serious atypical hyperplasia, among which even 8 patients (44.4%) were verified as endometrial cancer. Conclusions There exists pathological discrepancy between the fractional D&C and hysterectomy specimens. Patients with severer atypical hyperplasia may have a higher risk of developing endometrial cancer.

Objective:To analyze the utilization of proton pump inhibitors ( PPIs) in a three-A hospital to promote the rational use. Methods:The sales records of PPIs used for outpatients and inpatients were retrieved from the hospital database from 2010 to 2015, and the consumption sum, DDDs and DDC were analyzed statistically. Results:The consumption sum and DDDs of PPIs in the hospital were increasing, and the compound annual growth rate ( CAGR) of consumption sum was 13. 84%. The proportion of con-sumption sum and DDDs for PPIs injections respectively was 82. 2% and 29. 6% in the six years. The proportion of consumption sum and DDDs of oral PPIs respectively was 17. 8% and 70. 3% in the six years. The top three drugs in the list of consumption sum were pantoprazole, lansoprazole and esomeprazole. Conclusion: The application amounts of pantoprazole sodium for injection and lanso-prazole sodium for injection are relatively large, and the overuse of PPIs for injection can not be excluded.

Episodic tension-type headache is the most common headache in the general population and is usually self managed.Chronic tension-type headache may be highly disabling and often prompts medical consultation.Diagnosis is clinical,based on widely accepted and validated criteria and algorithm.Peripheral factors are implicated in episodic tension-type headache,whereas central factors probably underlie chronic tension-type headache.Simple analgesics,such as aspirin,are used for acute treatment.Amitriptyline and biofeedback assisted relaxation training have the best evidence of effectiveness for headache prevention.

Animals ; Dementia, Vascular ; blood ; psychology ; Erythrocyte Count ; Learning ; drug effects ; Male ; Memory ; drug effects ; Peptides ; pharmacology ; Rats ; Rats, Sprague-Dawley

Keratoconus is a progressive, non - inflammatory corneal thinning disorder that produces a unique spectrum of change in the surface curvature of the cornea. The suspected factors associated with the cause of keratoconus include genetic mechanisms, familial associations, allergy, atopy and so on, but environmental factors, such as abnormal rubbing, contact lens wearing and ultraviolet radiation may be easily ignored. Although it is commonly thought that keratoconus is a result of various pathological progress mediated by multiple factors, those chronic trauma could play important roles in the pathological progress. The classic definition of keratoconus is still referred as a non - inflammation disorder with malnutrition of keratectasia, more and more clinical evidences and experimental results that may refute this concept. It may be due to the long-term persistent chronic trauma resulted from eye rubbing, contact lens or ultraviolet radiation. Under this conditions, the increased release of inflammatory mediators and matrix metalloproteinases may accelerate keratocyte apoposis and enzyme metabolism disorders, with the result of matrix cell lost, tensile strength decreased and keratectasia. Here, for some papers known about the relationship between chronic cornea trauma and keratoconus were reviewed and discussed its possible causal relationship.

Objective: To investigate the histopathologic features of rim enhancement MRI of breast infiltrating ductal carcinoma (IDC). Methods: Routine and dynamic contrast enhanced MRI was used to examine 65 patients with breast lumps. Thirty of the 65 patients who were pathologically confirmed to have breast IDC were included in the present study. The manifestations of dynamic contrast enhanced MRI and the histopathologic parameters of the masses (the size of cancer nest, stroma type, microvessel density and degree of fibrosis) were observed. And the relationship of MR findings with the above-mentioned histopathologic features was analyzed. Results: Peripheral rim enhancement was obvious in IDC and a type-III (washout) time/signal intensity course was the dominant type (17/30,56.7%). The average enhancement rate during the first post-contrast minute(ΔSI1 %) was higher than 75% in IDC. The 30 IDCs fell into small (13,43%), medium(12,40%), and large (5,17%) groups according to the size of cancer nest; and into delicate(5,17%), narrow(16,53%), and broad(9,30%) groups according to the cancer stroma type. Early rim enhancement was associated with a small cancer nest (P<0.05), a high ratio of peripheral-to-central microvessel density, and a low ratio of peripheral-to-central fibrosis (P<0.01). Delayed rim enhancement was significantly associated with narrow stroma (P<0.05). Conclusion: Rim enhancement and washout sign on contrast-enhanced MR imaging of the breast IDC are associated not only with angiogenesis, but also with various histological features of the cancinoma, including the size of cancer nests, width of stroma, and degree of fibrosis.

Adult ; Air Pollutants, Occupational ; analysis ; poisoning ; Arsenic Poisoning ; complications ; Causality ; Female ; Humans ; Male ; Maximum Allowable Concentration ; Purpura, Thrombotic Thrombocytopenic ; epidemiology ; Young Adult

Objective:To discuss the effect of cochlear implant and hearing aid to voice quality.Method:Four groups of randomly selected 73 subjects were compared. The groups comprised: cochlear implant children, children using hearing aids, normal hearing children and deaf children with no hearing instrumention. The latter two groups were control groups. Each subject was required to phonate // about 3 s using 'voice assessment' to record the sound, and following voice acoustice variables were analysed: F0,SDF0,Jitter,Shimmer,NNE,HNR,SNR.Result:Voice F0 of children with cochlear implant was significantly lower that the other three groups(P<0.05);there were no significant difference between hearing aid group, normal hearing gourp, and deaf children group with no intervention(P>0.05);SDF0 of cochlear implant group and hearing aids group were significantly larger than the normal hearing group and deaf children group with no intervention(P<0.05),and the interaction of two factors(hearing and sex ) was close to the critical level of significance(P>0.05),which means that cochlear implant and hearing aid could have affected the SDF0 of female children more than those of male children. There were no significant difference among all the four groups about voice quality variables: Jitter,Shimmer,NNE,HNR,SNR.Conclusion:Cochlear implant and hearing aid mainly change the voice F0 and/or SDF0, and have no effect on the voice quality variables.

Brain Computer Interface(BCI) is a direct information communication and control channel established between human and computer or other electronics devices and it is a wholly new communication system that does not depend on the brain's normal output pathways of peripheral nerves and muscles.The general constitutions and principles of BCI systems are introduced.In addition,research methods based on electroencephalograph are discussed and the existing problems and future trends of BCI are pointed out.

[Objective]To evaluate the efficacy of topical use of 1 g/L tacrolimus eye drops in the treatment of ocular alkali burns.[Methods]A prospective study was performed to evaluate the efficacy of 1 g/L tacrolimus eye drops in the treatment of 12 patients with ocular alkali burns admittedin Zhongshan Ophthalmic Center of Sun Yat-sen University between May 23,2016 and Jan-uary 18,2017. The patients were treated for 1 ~ 18 weeks,with an average of 8.91 ± 5.56 weeks.The degree of ocular alkali burns was evaluated according to Roper-Hall classification system. In this group of patients,there were 2 cases of gradeⅡburns,5 cases of gradeⅢburns and 5 cases of gradeⅣburns. Each patient was given 1 g/L tacrolimus eye drops 2 times a day after admission. The slit lamp microscope and corneal fluorescein sodium staining examination were performed before and 1th week,2nd week,3rd week, 4th week,6th week,8th week respectively after performing topical tacrolimus treatment. Photos were taken to keep records to dynami-cally observe the epithelial repair and anterior segment lesions. Adobe Photoshop CS6 image processing software was used to calculate the area of corneal epithelium repair. The therapeutic effect was evaluated according to the corneal epithelial repair ,visual acuity and complications. The statistical analysis was carried out by SPSS 19.0 software.[Results]4 cases reached good prognosis ,including 2 cases of gradeⅡ and 2 cases of gradeⅢ burns,the corneal epithelium healed and the visual acuity was greater than 0.3. 5 cases had guarded prognosis,including 3 cases of gradeⅢand 2 cases of gradeⅣburns,corneal epithelium healed in 2 cases,corneal epi-thelial repair rate was greater than 50%in 3 cases,in which corneal neovascularization or corneal conjunctiva occurred,and the visu-al acuity was less than 0.3. 3 cases of gradeⅣ burns had poor prognosis:1 had corneal perforation,1 had long term corneal ulcer, and 1 had secondary glaucoma. In 12 cases,the corneal epithelial healing rate reached 99% in 50% patients,and the healing rate was greater than 50%in 75%patients. The visual acuity of 33.3%patients increased by more than three lines,and 66.6%cases had complications. The main factors affecting the prognosis are:The degree of corneal and corneal limbal burns,complication and corneal epithelial repair rate.[Conclusion]1 g/L tacrolimus eye drops can reduce the inflammatory reaction of ocular alkali burns ,reduce the incidence of glaucoma,promote corneal ulcer healing and corneal epithelial repair,and reduce complications caused by corneal lim-bal burns.