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Web-Based IP Packet Transmission Evaluation System
Yuta Ogino,Raja Zahilah,Satoshi Nakatsukasa,Osanori Koyama,Yutaka Katsuyama 한국멀티미디어학회 2009 한국멀티미디어학회 국제학술대회 Vol.2009 No.-
A web-based IP transmission evaluation system has been designed and implemented to evaluate IP-over-WDM networks. The system consists of a web server, a network tester for measurement and a controller for the network tester. The evaluation functions were implemented such that the programs in the server and the controller work in corporation with each other to measure and save the data systematically. The system functions were examined in an experimental network, and it was found that the system could generate traffic and measure throughputs and latency effectively in corporation with the web server.
Yoshihiro Sowa,Toshiaki Numajiri,Katsuhiko Nakatsukasa,Koichi Sakaguchi,Tetsuya Taguchi 대한외과학회 2017 Annals of Surgical Treatment and Research(ASRT) Vol.93 No.3
Purpose: The pedicled, descending-branch muscle-sparing latissimus dorsi (MSLD) flap has been widely used for breast reconstruction following total mastectomy. However, the superiority of the MSLD flap compared to the conventional latissimus dorsi (CLD) flap in preventing seroma formation has not been demonstrated. This study compares the morbidities related to seroma formation following pedicled MSLD flap and CLD flap breast reconstruction. Methods: A total of 15 women who underwent partial mastectomy and immediate partial breast reconstruction with MSLD flaps were compared with 15 women under identical conditions with CLD flap breast reconstruction. The medical records were reviewed for both complications and demographic data. The authors compared morbidity, including donor-site seroma, total volume of drain discharge, indwelling period of drainage, and length of hospital stay following both MSLD flap and CLD flap breast reconstruction. Results: The demographic data of the 2 groups were not significantly different. Donor-site seroma occurred in 2 MSLD patients (13.3%) and in 6 CLD patients (40.0%). The total volume of the drain discharge and the indwelling period of drainage at donor site were significantly lower in the MSLD group. The length of hospital stay was significantly shorter (by approximately a day and a half) for the MSLD group. Conclusion: The MSLD flap, with its low complication rate and associated minimal functional and aesthetic deficits at the donor site, may be a useful option for small breast reconstruction if earlier discharge from hospital is demanded.
Katsuya Saito,Takakazu Ushioda,Takahiro Miyata,Keita Mayanagi,Koki Kato,Joji Inamasu,Masashi Nakatsukasa 대한뇌혈관외과학회 2023 Journal of Cerebrovascular and Endovascular Neuros Vol.25 No.3
We describe a rare case of sacral epidural arteriovenous fistulas (edAVFs) with atypical clinical course of treatment. A 78-year-old man with a history of spinal surgery presented progressive gait disturbance and urinary incontinence. Spinal angiography demonstrated a sacral spinal AVF fed by bilateral lateral sacral arteries, draining to the venous pouch with subdural drainage. The first treatment by direct interruption of a subdural drainer was incompletely finished. Postoperative reassessment by 3D imaging analysis led to the diagnosis of sacral edAVF and 3D understanding of its angioarchitecture. The second treatment by transarterial embolization (TAE) resulted in complete occlusion of a sacral edAVF. However, spinal venous congestion didn’t improve, because the recruitment of occult edAVFs at the multiple lumbar levels and complex-shaped sacral ventral epidural venous plexus (VEP) were involved in the remnant of prior subdural drainage. The third treatment was performed by TAE for three occult edAVFs and the VEP compartment connecting between a patent edAVF and subdural drainage, which resulted in complete disappearance of spinal cord edema. Endovascular embolization of VEP compartment connecting to subdural drainage in addition to fistulous occlusion may be one of the treatment options for several edAVFs at the multiple spinal levels.