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Balloon venoplasty for disdialysis syndrome due to pacemakerrelated superior vena cava syndrome with chylothorax postbacteraemia: A case report

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World Journal of Clinical Cases 2023年第35期11卷 8364-8371页

作者： Satomi Yamamoto Michitsugu Kamezaki Junichi Ooka Toru Mazaki Yoshiaki Shimoda takaaki nishihara Yoko Adachi Department of Nephrology Kobe Central HospitalKobe 651-1145Japan Department of Cardiology Kobe Central HospitalKobe 651-1145Japan

BACKGROUND Although superior vena cava(SVC)syndrome has also been reported as a late complication of pacemaker(PM)implantation,acute onset of SVC syndrome caused by disdialysis syndrome in patients with PM implantation is very *** are no specific therapies or *** SUMMARY A 96-year-old woman receiving dialysis was implanted with a PM due to sick sinus *** was referred to our facility for chest discomfort experienced during *** examination,unilateral pleural effusion on the right side was cloudy with a foul *** patient was diagnosed with pyothorax and treated with *** the effusion was reduced,it gradually reaggravated and remained *** this case,SVC syndrome,which is generally considered a late complication after PM implantation,rapidly developed following the bacteraemia,resulting in impaired venous return,chylothorax,and disdialysis *** catheter intervention for SVC stenosis,the patient’s symptoms promptly *** patient has been recurrence-free for a *** Acute SVC syndrome can cause dysdialysis in PM-implanted *** intervention alone has improved this condition for a traceable period.

关键词： Superior vena cava syndrome Pacemaker implantation complications Disdialysis Case report

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Preliminary Deformation Experiment of Ringwoodite at 20 GPa and 1 700 K Using a D-DIA Apparatus

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Journal of Earth Science 2010年第5期21卷 517-522页

作者： takaaki Kawazoe Tomohiro Ohuchi Norimasa Nishiyama Yu nishihara Tetsuo Irifune Geodynamics Research Center Ehime University Senior Research Fellow Center Ehime University

A deformation experiment of ringwoodite with a strain of 9% was achieved at 20 GPa and 1 700 K and at a strain rate of 3×10^-5 s^-1 using a deformation-DIA （D-DIA） apparatus and a multi-anvil 6-6 （MA 6-6） assembly. The crystallographic orientations of the deformed sample were successfully analyzed by the electron backscatter diffraction （EBSD） method, although any notable latticepreferred orientation （LPO） was not observed presumably due to the insufficient strain in the present experiment. In this study, the deformation experiment on ringwoodite succeeded at P-T conditions consistent with the lower part of the mantle transition zone and at a controlled strain rate for the first time. The present study extended the pressure range of deformation experiments in the D-DIA apparatus from 16 GPa in our earlier study to 20 GPa at 1 700 K. The successful extension of the pressure range demonstrates potential importance of the D-DIA apparatus in studying rheological properties of minerals under the P-T conditions of the whole mantle transition zone.

关键词： ringwoodite mantle transition zone rheology viscosity mantle dynamics.

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Technical Development of Simple Shear Deformation Experiments Using a Deformation-DIA Apparatus

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Journal of Earth Science 2010年第5期21卷 523-531页

作者： Tomohiro Ohuchi takaaki Kawazoe Norimasa Nishiyama Yu nishihara Tetsuo Irifune Geodynamics Research Center Ehime University Senior Research Fellow Center Ehime University

Technical developments for simple shear deformation experiments at high pressures were made. The newly designed cell assembly can be compressed by deformation-DIA apparatuses with the MA 6-6 system, which consists of six second-stage tungsten carbide anvils （with a truncated edge length of 5 mm） and the anvil guide. Deformation of samples was barely observed during the compression process, showing that the shear strain of the deformed samples can be measured by the rotation of a strain marker. Simple shear deformation experiments on anhydrous and hydrous oli- vine aggregates were conducted under upper mantle conditions （pressures of 5.2-7.6 GPa and temperatures of 1 473-1 573 K）, and sample deformation with a shear strain of 7=0.8-1.2 was successfully achieved at a shear strain rate of 4.0×10^-5-7.5×10^-5 s^-1. The present study extended the pressure range of simple shear deformation experiments in the deformation-DIA apparatus from 3 GPa in an early study to 7.6 GPa at high temperatures.

关键词： simple shear deformation deformation-DIA MA 6-6 upper mantle.

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