Introduction:Neuroprotection may be an option in ischemic optic nerve disease.There have been promising reports about the neuroprotective ability of topical brimonidine in animal studies.Therefore,we tested whether 0....Introduction:Neuroprotection may be an option in ischemic optic nerve disease.There have been promising reports about the neuroprotective ability of topical brimonidine in animal studies.Therefore,we tested whether 0.2% brimonidine tartrate could improve the outcome of patients with non-arteritic anterior ischemic optic neuropathy(NAION).The study was stopped after an interim analysis,having not proven its feasibility within practicable time frame.Methods:A 3-month,double-masked,placebo-controlled,randomised European multicenter trial conducted according to good clinical practice rules.Thirty-six patients(22 m,14 f),older than 40 years with first eye involvement and typical signs of NAION were included in the study within the 1st week after visual loss(VA 0.05-1.0)and were randomized to treatment with either brimonidine 0.2%(Alphagan)or placebo.Visual acuity(VA,primary endpoint),visual field(VF,Humphrey 30-2 and Goldmann,quantified by a modified Esterman grid)and automated swinging flashlight test(SWIFT)were performed at baseline,2 weeks,4 weeks and 12 weeks after first visit.Primary analysis aimed at intention-to-treat group(ITT,n=29),secondary analysis to the per protocol population(PP,n=25).Tolerability and safety were tested in the safety group(n=36).A two-sample two-sided t-test was used for statistical analysis(alpha level at 0.05).Results:VA did not show statistically significant difference by treatment.There were non-significant trends for better visual field results in the brimonidine group.Adverse events consisting of local irritation were observed six times in the verum and three times in the placebo group.No serious adverse events occurred.Conclusion:In contradiction to an open-labeled,retrospective study published by Fazzone et al.,the results of this trial did not indicate any harmful effect of brimonidine in patients suffering from NAION.However,a statistically significant advantage for the patients receiving brimonidine tartrate could not be shown.展开更多
The rapid development of modern electronic devices has promoted more research in the field of high energy-density storage devices[1].Lithium ion batteries(LIBs)have been widely used in electronic devices and hybrid el...The rapid development of modern electronic devices has promoted more research in the field of high energy-density storage devices[1].Lithium ion batteries(LIBs)have been widely used in electronic devices and hybrid electric vehicles since their successful commercialization by Sony[2,3].展开更多
Aim: To determine the association between Viagra (sildenafil)-and Cialis (tadalafil) and non-arteritic anterior ischaemic optic neuropathy (NAION).Methods: A retrospective matched case control study was conducted. 38 ...Aim: To determine the association between Viagra (sildenafil)-and Cialis (tadalafil) and non-arteritic anterior ischaemic optic neuropathy (NAION).Methods: A retrospective matched case control study was conducted. 38 cases of NAION in males were identified from an academic ophthalmology practice in Birmingham, Alabama, and matched (on age) to 38 controls without a history of NAION. Self reported information regarding past and current use of Viagra and/or Cialis was obtained via a telephone questionnaire from interviewers who were not blind to case status. Results: Overall, males with NAION were no more likely to report a history of Viagra or Cialis use compared to similarly aged controls (odd ratio (OR) 1.75, 95%confidence interval (CI) 0.48 to 6.30 and OR 1.82, 95%CI 0.21 to 15.39). However, for those with a history of myocardial infarction, a statistically significant association was observed (OR 10.7, 95%CI 1.3 to 95.8). A similar association was observed for those with a history of hypertension though it lacked statistical significance (OR 6.9, 95%CI 0.8 to 63.6). Conclusions: For men with a history of myocardial infarction or hypertension the use of Viagra or Cialis may increase the risk of NAION. Physicians prescribing these medications to patients with these conditions should warn them about the potential risk ofNAION.展开更多
文摘Introduction:Neuroprotection may be an option in ischemic optic nerve disease.There have been promising reports about the neuroprotective ability of topical brimonidine in animal studies.Therefore,we tested whether 0.2% brimonidine tartrate could improve the outcome of patients with non-arteritic anterior ischemic optic neuropathy(NAION).The study was stopped after an interim analysis,having not proven its feasibility within practicable time frame.Methods:A 3-month,double-masked,placebo-controlled,randomised European multicenter trial conducted according to good clinical practice rules.Thirty-six patients(22 m,14 f),older than 40 years with first eye involvement and typical signs of NAION were included in the study within the 1st week after visual loss(VA 0.05-1.0)and were randomized to treatment with either brimonidine 0.2%(Alphagan)or placebo.Visual acuity(VA,primary endpoint),visual field(VF,Humphrey 30-2 and Goldmann,quantified by a modified Esterman grid)and automated swinging flashlight test(SWIFT)were performed at baseline,2 weeks,4 weeks and 12 weeks after first visit.Primary analysis aimed at intention-to-treat group(ITT,n=29),secondary analysis to the per protocol population(PP,n=25).Tolerability and safety were tested in the safety group(n=36).A two-sample two-sided t-test was used for statistical analysis(alpha level at 0.05).Results:VA did not show statistically significant difference by treatment.There were non-significant trends for better visual field results in the brimonidine group.Adverse events consisting of local irritation were observed six times in the verum and three times in the placebo group.No serious adverse events occurred.Conclusion:In contradiction to an open-labeled,retrospective study published by Fazzone et al.,the results of this trial did not indicate any harmful effect of brimonidine in patients suffering from NAION.However,a statistically significant advantage for the patients receiving brimonidine tartrate could not be shown.
基金supported by the National Key Research and Development Program of China (No. 2017YFB0702100)the National Natural Science Foundation of China (11404017)Technology Foundation for Selected Overseas Chinese Scholar,Ministry of Human Resources and Social Security of China and the Beijing Natural Science Foundation (No. 20192029).
文摘The rapid development of modern electronic devices has promoted more research in the field of high energy-density storage devices[1].Lithium ion batteries(LIBs)have been widely used in electronic devices and hybrid electric vehicles since their successful commercialization by Sony[2,3].
文摘Aim: To determine the association between Viagra (sildenafil)-and Cialis (tadalafil) and non-arteritic anterior ischaemic optic neuropathy (NAION).Methods: A retrospective matched case control study was conducted. 38 cases of NAION in males were identified from an academic ophthalmology practice in Birmingham, Alabama, and matched (on age) to 38 controls without a history of NAION. Self reported information regarding past and current use of Viagra and/or Cialis was obtained via a telephone questionnaire from interviewers who were not blind to case status. Results: Overall, males with NAION were no more likely to report a history of Viagra or Cialis use compared to similarly aged controls (odd ratio (OR) 1.75, 95%confidence interval (CI) 0.48 to 6.30 and OR 1.82, 95%CI 0.21 to 15.39). However, for those with a history of myocardial infarction, a statistically significant association was observed (OR 10.7, 95%CI 1.3 to 95.8). A similar association was observed for those with a history of hypertension though it lacked statistical significance (OR 6.9, 95%CI 0.8 to 63.6). Conclusions: For men with a history of myocardial infarction or hypertension the use of Viagra or Cialis may increase the risk of NAION. Physicians prescribing these medications to patients with these conditions should warn them about the potential risk ofNAION.
