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Transbronchial Lung Cryobiopsy : single institutional report in Japan
( Takashi Niwa ),( Tomohisa Baba ),( Tamiko Takemura ),( Kenta Murotani ),( Takashi Ogura ) 대한결핵 및 호흡기학회 2019 대한결핵 및 호흡기학회 추계학술대회 초록집 Vol.127 No.-
Background: In out institution Transbronchial lung cryobiopsy (TBLC) was introduced at May, 2017. Now we experienced TBLC for 500 and more patients. We summarize here our experience.Method: All patients who performed TBLC from May 2017 to December 2018 at Kanagawa cardiovascular and respiratory center were enrolled in this study. We assessed safety profiles and diagnostic yield for all patients and calculated CUSUM score to analyze the learning curve of TBLC for patients in first half year. For the patients with peripheral lesion TBLC was performed under fluoroscopy with Fogarty® occlusion catheter to manage pneumothorax and bleeding. Results: Of 512 cases, diffuse parenchymal lung disease was 492 and lung cancer was 20 cases. Incidence of pneumothorax was 3.9% (20 cases) and there were no patient of pneumothorax to need surgical operation. All bleeding was managed by occlusion catheter. Acute exacerbation was observed in one case. During a half year in 174 cases incidence of pneumothorax changed at 79th experience and bleeding incidence changed at 69th experience. For patients with peripheral small lesion we use extra-large size (2.7mm) guide sheath (Machida® SG-27092) to do Endobronchial ultrasound guided cryobiopsy (EBUS-Cryo). EBUS-Cryo with extra-large GS were performed for 13 patients. Median target size in computed tomography was 25mm (12-43mm) and diagnostic yield was 84.6%. In case with positive echo result by radial echo (within or adjacent to) diagnostic yield was 100% and invisible cases could not diagnose. Discussion: In our study incidence of TBLC was low compared to previous report. This results revealed fluoroscopy guided TBLC with balloon occlusion method is well tolerable. And Extra-large size GS enable us EBUS-Cryo conveniently even if using 1.9 mm cryoprobe. Using larger probe in EBUS-Cryo seems to be better diagnostic yield and 2.7mm GS is promising. Conclusion: TBLC and EBUS-Cryo using extra-large size GS is useful. Further investigation is warranted.
A study of "Listen" and "Hear"
Ryuta Baba,Yuki Mochizuki,Takashi Toriizuka,Yoshinori Horie 대한인간공학회 2010 대한인간공학회 학술대회논문집 Vol.2010 No.5
Recently, the portable audio players such as iPods are widespread. In this context, more people listen to music with headphones, and some people accidents such as the bicycles, cars or trains happen. People with headphones are shut off from surrounding sounds. So they can’t perceive sound information necessary to avoid the accidents. That’s why they have accidents. Then in this study it pays attention importantly of the balance of "Listen" and "Hear" that is the act that humans obtains outside auditory information as an influence that the headphone use in outdoor exerts on the perception function of aural, and in the present study, the measurement of the P300 event-related-potential(ERP) is used and examined. “Listen" means outside auditory information is actively obtained."Hear" means outside auditory information is felt passive with the ear. The tests subject the schoolboy who was listening to music daily by the healthy physically and mentally. Experimental conditions set three conditions when a normal headphone is used and when the headphone is not used when it uses noise-canceling headphone. The experimental methodology is tried by the ‘oddball’ Paradigm using the auditory stimulus that can be two kinds of discern it. The auditory stimuli use the bell sound of the bicycle and the running sound of the car. Target stimulus is a bell sound of the bicycle. Non-target stimulus is assumed to be a running sound of the car.
Design of Biological Information Measuring System
Hiroki Higa,Takashi Baba 대한전자공학회 2008 ITC-CSCC :International Technical Conference on Ci Vol.2008 No.7
To monitor individual’s health status, and collect vital physiological data, a biological information measuring system was developed in this paper. As a first step of our research, a user’s unit which had an accelerometer and thermometer was made and verified its performance. From the experimental results, it was clear that a healthy subject’s activities and the body temperature were appropriately collected using the system.
Shoko Merrit Yamada,Yusuke Tomita,Soichiro Shibui,Takashi Kurokawa,Yasuhisa Baba 한국유방암학회 2017 Journal of breast cancer Vol.20 No.2
The median time of brain metastasis from the diagnosis of breast cancer is approximately 3 years. In this case report, a 69-yearold woman demonstrated cerebellar ataxia. Brain magnetic resonance imaging revealed enhanced lesions in bilateral cerebellar hemispheres. She had undergone surgery, radiation, and chemotherapy for uterine and breast cancer 24 years prior and 16 years prior, respectively. Although she had not received any anticancer treatment for 10 years, no recurrences were identified using whole body scans. A partial tumor resection was performed and the histological diagnosis was an adenocarcinoma from breast cancer. As no extracranial lesions were found, gammaknife irradiation was performed, without additional systemic chemotherapy. One month posttreatment, the tumors dramatically reduced in size and the patient completely recovered from cerebellar ataxia. Systemic chemotherapy is not always required for brain metastasis from breast cancer with a long interval period, as long as no evidence of extracranial recurrence is detected.
Genomic Basis for Methicillin Resistance in Staphylococcus aureus
Keiichi Hiramatsu,Teruyo Ito,Sae Tsubakishita,Takashi Sasaki,Fumihiko Takeuchi,Yuh Morimoto,Yuki Katayama,Miki Matsuo,Kyoko Kuwahara-Arai,Tomomi Hishinuma,Tadashi Baba 대한감염학회 2013 Infection and Chemotherapy Vol.45 No.2
Since the discovery of the first strain in 1961 in England, MRSA, the most notorious multidrug-resistant hospital pathogen, has spread all over the world. MRSA repeatedly turned down the challenges by number of chemotherapeutics, the fruits of modern organic chemistry. Now, we are in short of effective therapeutic agents against MRSA prevailing among immuno-compromised patients in the hospital. On top of this, we recently became aware of the rise of diverse clones of MRSA, some of which have increased pathogenic potential compared to the classical hospital-associated MRSA, and the others from veterinary sources. They increased rapidly in the community, and started menacing otherwise healthy individuals by causing unexpected acute infection. This review is intended to provide a whole picture of MRSA based on its genetic makeup as a versatile pathogen and our tenacious colonizer.
Coordination of Multiple Cellular Processes by NR5A1/Nr5a1
Ken-ichirou Morohashi,Miki Inoue,Takashi Baba 대한내분비학회 2020 Endocrinology and metabolism Vol.35 No.4
The agenesis of the gonads and adrenal gland in revealed by knockout mouse studies strongly suggested a crucial role for Nr5a1 (SF-1 or Ad4BP) in organ development. In relation to these striking phenotypes, NR5A1/Nr5a1 has the potential to reprogram cells to steroidogenic cells, endow pluripotency, and regulate cell proliferation. However, due to limited knowledge regarding NR5A1 target genes, the mechanism by which NR5A1/Nr5a1 regulates these fundamental processes has remained unknown. Recently, newlyestablished technologies have enabled the identification of NR5A1 target genes related to multiple metabolic processes, as well as the aforementioned biological processes. Considering that active cellular processes are expected to be accompanied by active metabolism, NR5A1 may act as a key factor for processes such as cell differentiation, proliferation, and survival by coordinating these processes with cellular metabolism. A complete and definite picture of the cellular processes coordinated by NR5A1/Nr5a1 could be depicted by accumulating evidence of the potential target genes through whole genome studies.