ユウロウセイ ノウキョウ ニタイシテ EWS オ モチイタ キカンシ ジュウテンジュツ ト ロウコウナイ フィブリンコ チュウニュウ ノ ヘイヨウ ガユウコウ デアッタ 1レイ

Background : Empyema with a bronchial fistula is difficult to treat. Recently, bronchial occlusion using endobronchial Watanabe Spigot（EWS）ris reported to be useful for treatment of intractable pneumothorax and thoracic empyema. Case : A ６０ year old man presented fever and left chest pain. He was diagnosed with empyema. Video－ assisted thoracoscopic debridement and decortication for the empyema cavity and drainage for the abscess cavity were performed. Air leak appeared at postoperative day１３. We performed EWS embolization and intrapleural administration of fibrin glue, and the persistent air leak disappeared. Conclusion : We experienced empyema with a bronchial fistula successfully treated with EWS embolization and intrapleural administration of fibrin glue

ハイ アスペルギローマ ジュツゴ ハイロウ ニ タイシテ PushampSlideホウ ト ロープウェイホウ オ オウヨウ シタ EWS ニヨル キカンシ ジュウテンジュツ ガ ユウヨウ デアッタ 1レイ

Background : Bronchial occlusion using endobronchial Watanabe Spigot（EWS）is reported to be useful for treatment of secondary intractable pneumothorax and thoracic empyema, peripheral bronchial fistula. However, the methods of the bronchial occlusion are sometimes difficult and EWS sometimes fall off from plugged bronchus. Case : A ４４ year old man presented hemosputum. He was diagnosed with Aspergilloma. We performed a resection of the right upper lobe and S６ partial resection. Air leak appeared at postoperative day ３. We performed EWS embolization with an application of push & slide method and the ropeway method, and the persistent air leak disappeared. Conclusion : Our method is useful when the bronchial occlusion is difficult

Evidence For Cloud-Cloud Collision and Parsec-Scale Stellar Feedback Within the L1641-N Region

We present high spatial resolution $^{12}$CO ($J=1-0$) images taken by the Nobeyama 45m telescope toward a $48' \times 48'$ area including the L1641-N cluster. The effective spatial resolution of the maps is $21"$, corresponding to 0.04 pc at a distance of 400 pc. A recent 1.1 mm dust continuum map reveals that the dense gas is concentrated in several thin filaments. We find that a few dust filaments are located at the parts where $^{12}$CO ($J=1-0$) emission drops sharply. Furthermore, the filaments have two-components with different velocities. The velocity difference between the two-components is about 3 km s$^{-1}$, corresponding to a Mach number of 10, significantly larger than the local turbulent velocity in the cloud. These facts imply that the collision of the two components (hereafter, the cloud-cloud collision) possibly contributed to the formation of these filaments. Since the two components appear to overlap toward the filaments on the plane of the sky, the collision may have occurred almost along the line of sight. Star formation in the L1641-N cluster was probably triggered by such a collision. We also find several parsec-scale CO shells whose centers are close to either the L1641-N cluster or V 380 Ori cluster. We propose that these shells were created by multiple winds and/or outflows from cluster YSOs, i.e., "protocluster winds." One exceptional dust filament located at the western cloud edge lies along a shell; it is presumably a part of the expanding shell. Both the cloud-cloud collision and protocluster winds are likely to influence the cloud structure and kinematics in this region.Comment: 44 pages, 12 figures, submitted to Ap

Performance of anti-SARS-CoV-2 antibody testing in asymptomatic or mild COVID-19 patients: A retrospective study in outbreak on a cruise ship

Objectives: A few studies on antibody testing have focused on asymptomatic or mild coronavirus disease 2019 (COVID-19) patients with low initial anti-severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) antibody responses. Anti-SARS-CoV-2 antibody-testing performance was evaluated using blood samples from asymptomatic or mild COVID-19 patients.Methods: Blood samples were collected from 143 COVID-19 patients during an outbreak on a cruise ship 3 weeks after diagnosis. Simultaneously, a follow-up SARS-CoV-2 genetic test was performed. Samples stored before the COVID-19 pandemic were also used to evaluate the lateral flow immunochromatographic assay (LFA) and electrochemiluminescence immunoassay (ECLIA). Titers of anti-SARS-CoV-2 IgM and IgG antibodies against the nucleocapsid and spike proteins were measured using the enzyme-linked immunosorbent assay to confirm which antibodies were influenced on LFA- and ECLIA- false-negative result in crew-member samples.Results: Sensitivity, specificity, positive-predictive, and negative-predictive values of LFA-detected IgM antibodies were 0.231, 1.000, 1.000, and 0.613, respectively; those of LFA-detected IgG antibodies were 0.483, 0.989, 0.972, and 0.601, respectively; and those of ECLIA-detected total antibodies were 0.783, 1.000, 1.000, and 0.848, respectively. All antibody titers measured using ELISA were significantly lower in blood samples with negative results than in those with positive results in both LFA and ECLIA. In the patients with negative results from the follow-up genetic testing, IgM-, IgG-, and total-antibody positivity rates were 22.9%, 47.6%, and 72.4%, respectively.Conclusions: These findings suggest that anti-SARS-CoV-2 antibody testing has lower performance in asymptomatic or mild COVID-19 patients than required in the guidelines

SYNCHRONIZATION AND CHAOS IN THE DISCRETE CHEMICAL OSCILLATION SYSTEM(Session I : Cross-Disciplinary Physics, The 1st Tohwa University International Meeting on Statistical Physics Theories, Experiments and Computer Simulations)

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