为了提升公路服务区雨水收纳能力,减小雨水径流对公路服务区功能的影响,以甘肃省卓尼县完冒服务区为研究对象,利用InfoWorks ICM模型,根据当地暴雨强度公式,通过设置1、5、10、30、50 a 5种不同的暴雨重现期,构建了不同情景下的公路服...为了提升公路服务区雨水收纳能力,减小雨水径流对公路服务区功能的影响,以甘肃省卓尼县完冒服务区为研究对象,利用InfoWorks ICM模型,根据当地暴雨强度公式,通过设置1、5、10、30、50 a 5种不同的暴雨重现期,构建了不同情景下的公路服务区雨水径流模型;对比低影响开发(low impact development,LID)设施改造前后雨水管网超载情况,分析了公路服务区在低影响开发(LID)设施改造前后的径流控制和峰值削减的效果以及雨水管网应对雨洪的能力。结果表明:低影响开发(LID)设施对公路服务区雨水管网峰值流量的削减以及径流控制有良好效果,缓解了雨水管网的负荷,减少了管网超载的管段个数,有效提高了雨水管网集水排水能力。研究结果可为公路服务区雨水高效利用技术建设以及低影响开发(LID)设施改造提供意见建议。展开更多
BACKGROUND The surgical management of corneal lesions resulting from eyelid pathologies requires a comprehensive approach to ensure optimal patient outcomes.Eyelid lesions,ranging from benign to malignant,can lead to ...BACKGROUND The surgical management of corneal lesions resulting from eyelid pathologies requires a comprehensive approach to ensure optimal patient outcomes.Eyelid lesions,ranging from benign to malignant,can lead to corneal damage through mechanisms such as mechanical abrasion,secondary infection,or inflammatory responses.AIM To assess the surgical methodologies utilized in the treatment of corneal lesions resulting from eyelid disorders and evaluate their effects on patient outcomes,recurrence rates,and postoperative complications.The incorporation of advanced imaging techniques,including optical coherence tomography and ultrasound biomicroscopy,in conjunction with histopathological analysis,is addressed to improve surgical accuracy and patient outcomes.METHODS The authors searched online databases(PubMed and Cochrane)for publications on the surgical management of lid lesions.Records received from the two databases were checked for duplicates and relevance.Only records with full texts and in English language were included.RESULTS A total of 28 records were obtained following the screening for relevancy and duplication.The review underscores essential surgical approaches employed in the treatment of corneal lesions resulting from common eyelid diseases,focusing on operative efficacy,complication rates,and long-term results.CONCLUSION This systematic review emphasizes the significance of choosing suitable surgical techniques tailored to individual patient characteristics and stresses the need for interdisciplinary collaboration in ophthalmic care.The results indicate that sophisticated imaging techniques and careful preoperative preparation markedly improve surgical accuracy and long-term results.展开更多
AIM:To evaluate the outcome and the degree of patient satisfaction with the reconstruction of full-thickness medial and central lower lid defects using a pendular flap of the remaining lateral part of the lower lid.ME...AIM:To evaluate the outcome and the degree of patient satisfaction with the reconstruction of full-thickness medial and central lower lid defects using a pendular flap of the remaining lateral part of the lower lid.METHODS:Totally 20 patients with full thickness medial or central lower lid defects that could not be repaired by direct closure with or without cantholysis.A sliding full-thickness composite flap was created from the lateral part of the remaining lid to cover the defect.The posterior lamella of the induced lateral defect was repaired by either a periosteal flap alone or in combination with a free tarsal graft.Postoperative cosmetic and functional outcomes were evaluated.RESULTS:The mean age of the patients was 46.3±18.1y(20-70y).The defects ranged from 30%-80%of the lid width and resulted from the excision of lid tumors in 11 patients(55%)and from trauma in 9(45%)patients.Postoperative complications included one case of lateral graft ectropion,2 cases of lid retraction and 3 cases of marginal graft necrosis.Most of the patients had an acceptable final cosmetic outcome.CONCLUSION:Reconstruction of moderate-sized defects in the medial/central lower lid via a sliding flap yielded acceptable cosmetic and functional outcomes with high patient satisfaction.Large defects≥50%of the horizontal length are at greater risk of complications.Reconstruction of medial defects by this technique was associated with a greater incidence of complications.展开更多
文摘BACKGROUND The surgical management of corneal lesions resulting from eyelid pathologies requires a comprehensive approach to ensure optimal patient outcomes.Eyelid lesions,ranging from benign to malignant,can lead to corneal damage through mechanisms such as mechanical abrasion,secondary infection,or inflammatory responses.AIM To assess the surgical methodologies utilized in the treatment of corneal lesions resulting from eyelid disorders and evaluate their effects on patient outcomes,recurrence rates,and postoperative complications.The incorporation of advanced imaging techniques,including optical coherence tomography and ultrasound biomicroscopy,in conjunction with histopathological analysis,is addressed to improve surgical accuracy and patient outcomes.METHODS The authors searched online databases(PubMed and Cochrane)for publications on the surgical management of lid lesions.Records received from the two databases were checked for duplicates and relevance.Only records with full texts and in English language were included.RESULTS A total of 28 records were obtained following the screening for relevancy and duplication.The review underscores essential surgical approaches employed in the treatment of corneal lesions resulting from common eyelid diseases,focusing on operative efficacy,complication rates,and long-term results.CONCLUSION This systematic review emphasizes the significance of choosing suitable surgical techniques tailored to individual patient characteristics and stresses the need for interdisciplinary collaboration in ophthalmic care.The results indicate that sophisticated imaging techniques and careful preoperative preparation markedly improve surgical accuracy and long-term results.
文摘AIM:To evaluate the outcome and the degree of patient satisfaction with the reconstruction of full-thickness medial and central lower lid defects using a pendular flap of the remaining lateral part of the lower lid.METHODS:Totally 20 patients with full thickness medial or central lower lid defects that could not be repaired by direct closure with or without cantholysis.A sliding full-thickness composite flap was created from the lateral part of the remaining lid to cover the defect.The posterior lamella of the induced lateral defect was repaired by either a periosteal flap alone or in combination with a free tarsal graft.Postoperative cosmetic and functional outcomes were evaluated.RESULTS:The mean age of the patients was 46.3±18.1y(20-70y).The defects ranged from 30%-80%of the lid width and resulted from the excision of lid tumors in 11 patients(55%)and from trauma in 9(45%)patients.Postoperative complications included one case of lateral graft ectropion,2 cases of lid retraction and 3 cases of marginal graft necrosis.Most of the patients had an acceptable final cosmetic outcome.CONCLUSION:Reconstruction of moderate-sized defects in the medial/central lower lid via a sliding flap yielded acceptable cosmetic and functional outcomes with high patient satisfaction.Large defects≥50%of the horizontal length are at greater risk of complications.Reconstruction of medial defects by this technique was associated with a greater incidence of complications.
