Objective:To study the clinical efficacy of botulinum toxin type A injection in the treatment of upper facial dynamic wrinkles.Methods:A total of 35 patients with upper facial dynamic wrinkles treated in our hospital from February 2016 to October 2016 were selected as research objects.All the patients were treated with botulinum toxin type A.The excellence rate of 30min after treatment,3 d after treatment and 7 d after treatment were evaluated and compared.The facial wrinkles severity index of the patients were evaluated by the facial wrinkles scale (FWS),and the differences of the FWS index before treatment,4 weeks after treatment and 6 months after treatment were compared.The adverse reactions,like upper facial tension,fatigue and local injection of ecchymosis after treatment were observed and compared.Results:The excellence rate of the patients after treatment of 30 min,3 d and 7 d were gradually increased.The excellence rate of the patients after treatment of 3 d and 7 d were significantly higher than that of after treatment of 30 min,and the excellence rate of the patients after treatment of 7 d were significantly higher than that of after treatment of 3 d (P＜0.05).The FWS index of the patients after treatment of 4 weeks and 6 months were significantly lower than those of before treatment,and the FWS index of the patients after treatment of 4 weeks were significantly lower than that of 6 months after treatment(P＜0.05).After treatment,only 4 patients had slight discomfort and all of these symptoms were disappeared after 3-4 days,there was no effect on their normal work and life.Conclusion:Botulinum toxin type A injection has a remarkable clinical curative effect in the treatment of patients with upper facial dynamic wrinkles,can maintain tor a long time,and also has good safety,it is worthy clinical application.

Objective:To investigate the curative effect of botulinum toxin type A combined with plastic operation of pouches on patients with eye skin relaxation and its impact on patients' satisfaction,and to provide reference for clinical application.Methods:A total of 60 patients with eye skin relaxation,who were treated in Baoji Central Hospital from June 2015 to June 2016,were selected as subjects and divided into control group (n=28) and treatment group (n=32) according to the patients' choices.The patients of control group were treated with plastic operation of pouches,while the patients of treatment group were treated with botulinum toxin type A combined with plastic operation of pouches.The two groups were followed up for 6 months.The improvement of crow's feet,the relief of pouches and the improvement of eye skin gloss of the patients after operation were observed and recorded.The incidence of complications were also observed.At the end of the follow-up,the satisfaction degrees of the patients were investigated with the self-made questionnaire.Results:After treatment,the improvement rate(100％) of crow's feet of the treatment group was significantly higher than that(60.71％) of the control group;the improvement rate (96.88％) of pouches of the treatment group was significantly higher than that (32.14％) of the control group;the improvement rate (87.50％) of eye skin gloss of the treatment group was significantly higher than that (53.57％) of the control group,and the differences were statistically significant (all P＜0.05).After treatment,there was no significant difference in the incidence of incision swelling,small amount of secretions and small hematoma between the two groups (P＞0.05),the operation eye swelling and incision bruises outer canthus in the control group were more than those in the treatment group (P＜0.05).The total satisfaction rate [93.75％ (30/32)] of the treatment group was significantly higher than that[67.86％ (19/28)] of the control group,the difference was statistically significant (P＜0.05).Conclusion:Botulinum toxin type A combined with plastic operation of pouches in the treatment of eye skin relaxation has a better efficacy and safety,which can significantly reduce the incidence of operation eye swelling and incision bruises outer canthus,and improve patients' satisfaction rate.It is worthy of clinical application.

Objective To explore the application value of monoexponential, biexponential models multiple b values diffusion weighted imaging(DWI) in distinguishing pancreatic cancer from non-tumorous pancreas.Methods Subjects comprised 37 pancreatic cancers confirmed by clinical or surgery.Pancreas multiple b values DWI was performed using 3.0T scanner.Standard apparent diffusion coefficient (ADCstandard) was calculated using monoexponential diffusion model.Pure diffusion coefficient (ADCslow), pseudodiffusion coefficient (ADCfast) and perfusion fraction (f) were calculated using intravoxel incoherent motion(IVIM) diffusion model.Parameters of pancreatic cancers and non-tumorous pancreas were compared using independent samples t test.Results Mean ADCslow value of pancreatic cancer was higher than that of non-tumorous pancreas (0.611×10-3 mm2/s vs 0.521×10-3 mm2/s,P=0.037).Mean ADCfast and f values of pancreatic cancer were lower than that of non-tumorous pancreas (5.066×10-3 mm2/s vs 7.188×10-3 mm2/s,P=0.035;55.8% vs 64.0%,P=0.016;respectively).ADCslow of pancreatic cancer was positively correlated to ADCstandard (r=0.824,P=0.000).ADCfast of pancreatic cancer was negatively correlated to f(r=-0.558,P=0.000).Conclusion ADCslow, ADCfast and f derived from IVIM-DWI model can distinguish pancreatic cancer from non-tumorous pancreas.IVIM-DWI may be a promising and non-invasive tool for early diagnosing and differentiating pancreatic carcinoma from non-tumorous pancreas.