目的:构建适用于不确定环境下的应急物资分级库存模型,以为传染病暴发后的应急响应提供更准确和有效的决策支持。方法:首先,使用“之”字形不确定分布构建应急物资分级模型;其次,将经济订购量(economic order quantity,EOQ)模型与应急...目的:构建适用于不确定环境下的应急物资分级库存模型,以为传染病暴发后的应急响应提供更准确和有效的决策支持。方法:首先,使用“之”字形不确定分布构建应急物资分级模型;其次,将经济订购量(economic order quantity,EOQ)模型与应急物资分级模型相结合构建应急物资分级库存模型;最后,以W市某次急性呼吸道传染病事件为例,验证提出的应急物资分级库存模型的实用性和有效性。结果:该模型在大部分情况下能够准确地对应急物资进行分级,且以该模型计算得到的库存量十分接近需求量。结论:建立的应急物资分级库存模型在急性呼吸道传染病的应急响应中具有实用性和有效性,可以帮助决策者更准确地预测应急物资的需求,提高应急响应的能力和效率。展开更多
AIM:To evaluate the clinical significance of checking episcleral venous fluid wave(EVFW)during gonioscopyassisted transluminal trabeculotomy(GATT)in patients with open angle glaucoma(OAG).METHODS:This retrospective ca...AIM:To evaluate the clinical significance of checking episcleral venous fluid wave(EVFW)during gonioscopyassisted transluminal trabeculotomy(GATT)in patients with open angle glaucoma(OAG).METHODS:This retrospective case series study comprised 30 patients(45 eyes)with OAG underwent GATT.The location and extent of EVFW were examined and graded after intraoperative compression flushing of the anterior chamber angle during the operation.Patients were followed up for 1y.A complete success for surgery is defined as a postoperative intraocular pressure(IOP)<18 mm Hg without any anti-glaucoma medication.IOP<18 mm Hg with less than two anti-glaucoma medications is defined as qualified success,while the control of IOP requiring three anti-glaucoma medications is considered as unsuccess.RESULTS:The mean IOP was 35.38±7.16 mm Hg before surgery and 15.52±4.22 mm Hg 1y after surgery(P<0.01).The average number of anti-glaucoma medication was 2.8±1.2(2-4)preoperation and 0.6±1.3(0-3)1y postoperation(P<0.01).The success rate of the operation was 93.33%.Complete success rate was 66.67%,qualified success rate was 26.67%,and 6.66%of unsuccessful cases required reoperation.EVFW of all cases was grade 2-4,and the percentages of grade 2,3 and 4 were 33.33%,40.0%and 26.67%,respectively.The distribution and percentage of EVFW were inferior(36%),nasal(28%),superior(20%),and temporal(16%).The EVFW grade of complete success patients was 3.4±0.6(3-4),and that of qualified success patients was 2.6±1.0(2-4).The larger the range of EVFW,the lower the IOP,and the better the IOP reduction effect.CONCLUSION:During GATT surgery,pressurized irrigation of anterior chamber to check EVFW can reduce the outflow resistance of aqueous humor and increase the effect of postoperative IOP.The range of EVFW is negatively correlated with postoperative IOP.Therefore,EVFW may be a valuable prognostic indicator for the success of GATT surgery.展开更多
文摘目的:构建适用于不确定环境下的应急物资分级库存模型,以为传染病暴发后的应急响应提供更准确和有效的决策支持。方法:首先,使用“之”字形不确定分布构建应急物资分级模型;其次,将经济订购量(economic order quantity,EOQ)模型与应急物资分级模型相结合构建应急物资分级库存模型;最后,以W市某次急性呼吸道传染病事件为例,验证提出的应急物资分级库存模型的实用性和有效性。结果:该模型在大部分情况下能够准确地对应急物资进行分级,且以该模型计算得到的库存量十分接近需求量。结论:建立的应急物资分级库存模型在急性呼吸道传染病的应急响应中具有实用性和有效性,可以帮助决策者更准确地预测应急物资的需求,提高应急响应的能力和效率。
基金Supported by Sichuan Science and Technology Program(No.2021YFS0214).
文摘AIM:To evaluate the clinical significance of checking episcleral venous fluid wave(EVFW)during gonioscopyassisted transluminal trabeculotomy(GATT)in patients with open angle glaucoma(OAG).METHODS:This retrospective case series study comprised 30 patients(45 eyes)with OAG underwent GATT.The location and extent of EVFW were examined and graded after intraoperative compression flushing of the anterior chamber angle during the operation.Patients were followed up for 1y.A complete success for surgery is defined as a postoperative intraocular pressure(IOP)<18 mm Hg without any anti-glaucoma medication.IOP<18 mm Hg with less than two anti-glaucoma medications is defined as qualified success,while the control of IOP requiring three anti-glaucoma medications is considered as unsuccess.RESULTS:The mean IOP was 35.38±7.16 mm Hg before surgery and 15.52±4.22 mm Hg 1y after surgery(P<0.01).The average number of anti-glaucoma medication was 2.8±1.2(2-4)preoperation and 0.6±1.3(0-3)1y postoperation(P<0.01).The success rate of the operation was 93.33%.Complete success rate was 66.67%,qualified success rate was 26.67%,and 6.66%of unsuccessful cases required reoperation.EVFW of all cases was grade 2-4,and the percentages of grade 2,3 and 4 were 33.33%,40.0%and 26.67%,respectively.The distribution and percentage of EVFW were inferior(36%),nasal(28%),superior(20%),and temporal(16%).The EVFW grade of complete success patients was 3.4±0.6(3-4),and that of qualified success patients was 2.6±1.0(2-4).The larger the range of EVFW,the lower the IOP,and the better the IOP reduction effect.CONCLUSION:During GATT surgery,pressurized irrigation of anterior chamber to check EVFW can reduce the outflow resistance of aqueous humor and increase the effect of postoperative IOP.The range of EVFW is negatively correlated with postoperative IOP.Therefore,EVFW may be a valuable prognostic indicator for the success of GATT surgery.
