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Prevention of laryngeal webs through endoscopic keel placement for bilateral vocal cord lesions

Jian Chen, Yilai Shu, Matthew R. Naunheim, Min Chen, Lei Cheng, Haitao Wu

Frontiers of Medicine 2018, Volume 12, Issue 3, Pages 301-306 doi: 10.1007/s11684-017-0549-0

Abstract:

Transoral microresection for treatment of vocal cord lesions involving the anterior commissure may result in anterior glottic webs. In this study, we retrospectively reviewed 54 patients who underwent microsurgery for bilateral lesions involving the anterior commissure and categorized them into two groups. The keel placement and control groups received endoscopic keel placement and mitomycin C, respectively. During the follow-up of at least 1 year, the laryngeal web formation rate significantly decreased in the keel placement group compared with that in the control group (18.6% versus 54.5%, <0.05). Furthermore, the voice handicap index-10 scores for patients without web formation decreased in both the keel placement and control groups ( <0.0001 and <0.001, respectively). A pseudomembrane covering the vocal cords was detected in 16.3% (7 of 43) cases after keel removal. A total of 100% (7 of 7) of these cases and 2.8% (1 of 36) of the other cases formed laryngeal webs ( <0.0001). Endoscopic keel placement could be an effective method for preventing anterior glottic webs after surgery for bilateral vocal cord diseases involving the anterior commissure. The pseudomembrane observed at the time of keel removal may imply a high risk of web formation.

Keywords： glottic stenosis glottic web laryngeal keel silastic sheets anterior commissure

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Vibration analysis of nano-structure multilayered graphene sheets using modified strain gradient theory

Amir ALLAHBAKHSHI,Masih ALLAHBAKHSHI

Frontiers of Mechanical Engineering 2015, Volume 10, Issue 2, Pages 187-197 doi: 10.1007/s11465-015-0339-9

Abstract: effect of interlayer van der Waals (vdW) force for the vibration analysis of multilayered graphene sheets

Keywords： graphene van der Waals (vdW) force modi- fied strain gradient elasticity theory size effect parameter

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Cooling performance of grid-sheets for highly loaded ultra-supercritical steam turbines

Dieter BOHN , Robert KREWINKEL , Shuqing TIAN ,

Frontiers in Energy 2009, Volume 3, Issue 3, Pages 313-320 doi: 10.1007/s11708-009-0036-7

Abstract: To protect the thermally highly loaded components, a sandwich material consisting of two thin face sheetsThe cooling steam is led through the woven wire mesh between the two face sheets to achieve a coolingrigidity under varying operating conditions.In the present work, the cooling performance of the grid-sheets

Keywords： steam turbines 700& deg C-technology numerical inverstigation cooling

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enhancement using carbon nanotubes on flexural behavior of RC beams strengthened with externally bonded CFRP sheets

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 1, Pages 131-143 doi: 10.1007/s11709-021-0787-8

Abstract: The RC beams were prepared, strengthened in flexure by externally bonded CFRP or CNTs-modified CFRP sheets

Keywords： RC beams flexural strengthening CFRP CNTs finite element

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Study on Strengthening Technique with Prestressed PBO Fiber Sheets

Wu Zhishen,Iwashita Kentaro,Niu Hedong

Strategic Study of CAE 2005, Volume 7, Issue 9, Pages 18-24

Abstract: Traditional practice is to pretension fiber sheets impregnated with adhesive or FRP plate, which is time-consuming

Keywords： fiber reinforced polymers (FRP) PBO fiber sheet retrofit/repair bond prestressing anchorage

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Research on dent resistance property of aluminum alloy sheets

Zhang Junping,Ma Mingtu,Fang Gang and Jin Qingsheng

Strategic Study of CAE 2014, Volume 16, Issue 1, Pages 108-112

Abstract: two years natural aging，the strain hardening exponent nvalue and elongation of 6016 aluminum alloy sheetsWith 30 min baking at different temperatures，strength of the sheets increases.The sheets exhibit good bake-hardening property.baking temperature is which leads to higher strength，the better the dent resistance property of the sheets

Keywords： 6016 aluminum alloy bake-hardening dent resistance property

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Seismic retrofitting of severely damaged RC connections made with recycled concrete using CFRP sheets

Yasmin MURAD, Wassel AL BODOUR, Ahmed ASHTEYAT

Frontiers of Structural and Civil Engineering 2020, Volume 14, Issue 2, Pages 554-568 doi: 10.1007/s11709-020-0613-8

Abstract: experimental and numerical program is carried out in this research to investigate the influence of CFRP sheetsEach specimen is partially loaded at the first stage and then specimens are repaired using CFRP sheets

Keywords： retrofitting CFRP sheets recycled concrete pulverised fuel ash silica fume cyclic beam-column connections