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  • 1
    In: Pediatric Cardiology, Springer Science and Business Media LLC, Vol. 41, No. 7 ( 2020-10), p. 1432-1437
    Abstract: The QT variability index (QTVI), which measures the instability of myocardial repolarization, is usually calculated from a single electrocardiogram (ECG) recording and can be easily applied in children. It is well known that frequency analysis of heart rate variability (HRV) can detect autonomic balance, but it is not clear whether QTVI is correlated with autonomic tone. Therefore, we evaluated the association between QTVI and HRV to elucidate whether QTVI is correlated with autonomic nerve activity. Apparently, healthy 320 children aged 0–7 years who visited Fujita Health University Hospital for heart checkup examinations were included. The RR and QT intervals of 60 continuous heart beats were measured, and the QTVI was calculated using the formula of Berger et al. Frequency analysis of HRV, including the QTVI analysis region, was conducted for 2 min and the ratio of low-frequency (LF) components to high-frequency (HF) components (LF/HF) and HF/(LF + HF) ratio was calculated as indicators of autonomic nerve activity. Then, the correlations between QTVI and these parameters were assessed. QTVI showed a significant positive correlation with LF/HF ratio ( r  = 0.45, p   〈  0.001) and negative correlation with HF/(LF + HF) ratio ( r  = −0.429, p   〈  0.001). These correlations remained after adjustment for sex and age. QTVI, which is calculated from non-invasive ECG and can detect abnormal myocardial repolarization, is significantly correlated with frequency analysis of HRV parameters. QTVI reflects autonomic nerve balance in children.
    Type of Medium: Online Resource
    ISSN: 0172-0643 , 1432-1971
    Language: English
    Publisher: Springer Science and Business Media LLC
    Publication Date: 2020
    detail.hit.zdb_id: 1463000-X
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  • 2
    In: Journal of Clinical Oncology, American Society of Clinical Oncology (ASCO), Vol. 40, No. 16_suppl ( 2022-06-01), p. e14510-e14510
    Abstract: e14510 Background: Among the major advances in cancer treatment is the progress in cancer immunotherapy; however, despite the strides, there is few information specific to the Asian population. It is unclear to what extent clinical trial and translational research in cancer immunology are conducted in Asian institutions. Methods: This questionnaire-based survey was conducted among researchers and healthcare professionals who are involved in cancer immunology research and therapeutics in Asia-Pacific countries. The study identified the involvement of respondents in various phases of clinical trials, and immunotherapy research. In addition, the current capabilities of the institutions to conduct translational research were surveyed. Results: We received a total of 122 responses from 20 Asia-Pacific countries. More than half (58%) of the responders are currently conducting clinical trials on cancer immunology with 25% having performed more than 10 Phase 3 trials in the last 3 years. In clinical trials and clinical practice, immune checkpoint inhibitors were performed in most countries (81.8% and 88.6%, respectively). Clinical trials and clinical practice of CAR-T and TCR-T were performed only in some countries (CAR-T; 22.7% and 15.9%, TCR-T; 2.3% and 0%, respectively). In the absence of novel therapeutics in their institution, 18% of the responders refer their patient to facilities that have ongoing clinical trials. Among the institutions that perform Hematopoietic stem cell transplant (55.1%), the most common type offered include autologous (81.3%) and allogenic (70.8%) peripheral blood stem-cell transplantation. About 51.7% of the respondents have institutions that can conduct early drug phase development studies with only 11.2% capable of utilizing their own immunotherapeutic agents. Less than half of the respondents (40.7%) belong to institutions that have conducted translational researches using patient-derived samples for the last three years. Furthermore, more than half of the respondent institutions have no personnel that is experienced to handle and/or run patient-derived fresh peripheral blood or fresh tumors. Collaboration among neighboring countries can allow send out of specimens to other institutions that have such capability, however, 56.9% of countries have regulations or restrictions in transporting lymphocytes or tumor tissues. Conclusions: Oncologists and researchers in Asia recognize the importance of cancer immunology researches for patients. There were institutional and inter-country differences particularly in the conduct of early phase clinical drug development and translational research.
    Type of Medium: Online Resource
    ISSN: 0732-183X , 1527-7755
    RVK:
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    Language: English
    Publisher: American Society of Clinical Oncology (ASCO)
    Publication Date: 2022
    detail.hit.zdb_id: 2005181-5
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