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- 저자 : Kensuke Sakai (검색결과 4 건)
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A Self-Adaptive Measurement Rate Control Method for an Agent-based Service Monitoring System
Satoshi Kondoh,Kensuke Takahashi,Masaru Sakai 한국통신학회 2020 한국통신학회 APNOMS Vol.2020 No.09
The increasing complexity of services of telecommunications carriers has increased the burden of operators monitoring these services and the load on the system monitoring the target devices. Operators need to choose appropriate monitoring settings for each component of the services, considering the properties of each component. In addition, whenever a component is added or changed, its monitoring settings need to be reconfigured. Furthermore, if operators configure incorrect monitoring settings, service anomalies may not be detected, or quality of service may be damaged. Therefore, the monitoring system needs to automatically input and change the monitoring settings in accordance with the service. In this paper, we propose a method to dynamically adjust the monitoring interval for a monitoring system. Finally, evaluation results show the proposed method can reduce the monitoring overhead more effectively than the previous method and can also ensure the accuracy of monitoring when a service abnormality occurs.
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Wataru Yamagami,Nobuyuki Susumu,Takeshi Makabe,Kensuke Sakai,Hiroyuki Nomura,Fumio Kataoka,Akira Hirasawa,Kouji Banno,Daisuke Aoki 대한부인종양학회 2018 Journal of Gynecologic Oncology Vol.29 No.2
Objective: Reports on the repeated administration of medroxyprogesterone acetate (MPA) for intrauterine recurrence after fertility-preserving therapy for atypical endometrial hyperplasia (AEH) and early grade 1 endometrioid carcinoma (G1) are lacking. We aimed to clarify the outcomes of repeated MPA therapy in cases of intrauterine recurrence after fertility-preserving therapy with MPA against AEH/early G1. Methods: Patients with AEH or stage IA well-differentiated endometrioid carcinoma without myometrial invasion who underwent first-line MPA therapy for primary lesions or intrauterine recurrence were divided into initial treatment and repeated treatment groups (162 and 82 patients, respectively). Oral MPA administration (400−600 mg/day) was continued until pathological tumor disappearance. Data regarding clinicopathological factors, adverse events, and outcomes following the initial and repeated hormonal treatments were extracted from medical records and analyzed. Results: Complete response rates in the initial and repeated treatment groups were 98.5% and 96.4%, respectively, among patients with AEH, and were 90.7% and 98.1%, respectively, among patients with G1. In the initial treatment group, 5-year recurrence-free survival (RFS) rates were 53.7% and 33.2% among patients with AEH and G1, respectively. In the repeated treatment group, RFS rates were 14.0% and 11.2% among patients with AEH and G1, respectively. Among patients with AEH, the pregnancy rate tended to be lower in the repeated treatment group than in the initial treatment group (11.1% vs. 29.2%; p=0.107), while no significant group difference was observed among patients with G1 (20.8% vs. 22.7%). Conclusion: Repeated treatment is sufficiently effective for intrauterine recurrence after hormonal therapy for AEH/early G1.
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Sho Hasegawa,Shinsuke Koshita,Yoshihide Kanno,Takahisa Ogawa,Toshitaka Sakai,Hiroaki Kusunose,Kensuke Kubota,Atsushi Nakajima,Yutaka Noda,Kei Ito 대한소화기내시경학회 2021 Clinical Endoscopy Vol.54 No.6
Background/Aims: The use of endoscopic intervention (EI) for acute biliary pancreatitis (ABP) remains controversial because theseverity of biliary obstruction/cholangitis/pancreatitis is not reflected in the indications for early EI (EEI). Methods: A total of 148 patients with ABP were included to investigate 1) the differences in the rate of worsening cholangitis/pancreatitis between the EEI group and the early conservative management (ECM) group, especially for each severity of cholangitis/pancreatitis, and 2) the diagnostic ability of imaging studies, including endoscopic ultrasound (EUS), to detect common bile ductstones (CBDSs) in the ECM group. Results: No differences were observed in the rate of worsening cholangitis between the EEI and ECM groups, regardless of theseverity of cholangitis and/or the existence of impacted CBDSs. Among patients without impacted CBDSs and moderate/severecholangitis, worsening pancreatitis was significantly more frequent in the EEI group (18% vs. 4%, p=0.048). In patients in the ECMgroup, the sensitivity and specificity for detecting CBDSs were 73% and 98%, respectively, for EUS, whereas the values were 13% and92%, respectively, for magnetic resonance cholangiopancreatography. Conclusions: EEI should be avoided in the absence of moderate/severe cholangitis and/or impacted CBDSs because of the high rateof worsening pancreatitis. EUS can contribute to the accurate detection of residual CBDSs, for the determination of the need forelective EI.
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Tsuneaki Takao,Seiji Okada,Yuichiro Morishita,Takeshi Maeda,Kensuke Kubota,Ryosuke Ideta,Eiji Mori,Itaru Yugue,Osamu Kawano,Hiroaki Sakai,Takayoshi Ueta,Keiichiro Shiba 대한척추외과학회 2016 Asian Spine Journal Vol.10 No.3
Study Design: Retrospective case series. Purpose: To clarify the influence of cervical spinal canal stenosis (CSCS) on neurological functional recovery after traumatic cervical spinal cord injury (CSCI) without major fracture or dislocation Overview of Literature: The biomechanical etiology of traumatic CSCI remains under discussion and its relationship with CSCS is one of the most controversial issues in the clinical management of traumatic CSCI. Methods: To obtain a relatively uniform background, patients non-surgically treated for an acute C3–4 level CSCI without major fracture or dislocation were selected. We analyzed 58 subjects with traumatic CSCI using T2-weighted mid-sagittal magnetic resonance imaging. The sagittal diameter of the cerebrospinal fluid (CSF) column, degree of canal stenosis, and neurologic outcomes in motor function, including improvement rate, were assessed. Results: There were no significant relationships between sagittal diameter of the CSF column at the C3–4 segment and their American Spinal Injury Association motor scores at both admission and discharge. Moreover, no significant relationships were observed between the sagittal diameter of the CSF column at the C3-4 segment and their neurological recovery during the following period. Conclusions: No relationships between pre-existing CSCS and neurological outcomes were evident after traumatic CSCI. These results suggest that decompression surgery might not be recommended for traumatic CSCI without major fracture or dislocation despite pre-existing CSCS.
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