著者
Hiroyuki Takaoka Mitsuhiro Iwasa Yasushi Otsuka Masako Fukuda
出版者
The Japan Society of Medical Entomology and Zoology
雑誌
衛生動物 (ISSN:04247086)
巻号頁・発行日
vol.72, no.2, pp.39-46, 2021-06-25 (Released:2021-06-10)
参考文献数
12

Two new species, Simulium (Simulium) iwasai and S. (S.) obihiroense, are described from females collected from Hokkaido, Japan. Both new species are placed in the S. (S.) venustum species-group. Simulium (Montisimulium) kobayashii Okamoto et al., is newly recorded from Hokkaido. In addition, the male of S. (S.) iwatense (Shiraki) in the S. (S.) ornatum species-group is fully described for the first time based on males reared from pupae collected from Hokkaido.
著者
Manami Takahashi Hiroyuki Takaoka Satomi Yashima Noriko Suzuki-Eguchi Joji Ota Hideki Kitahara Kaoru Matsuura Goro Matsumiya Yoshio Kobayashi
出版者
The Japanese Circulation Society
雑誌
Circulation Journal (ISSN:13469843)
巻号頁・発行日
pp.CJ-23-0288, (Released:2023-08-09)
参考文献数
40

Background: Extracellular volume fraction (ECV) on magnetic resonance imaging can predict prognosis after aortic valve replacement in patients with aortic stenosis (AS). However, the usefulness of ECV on computed tomography (CT) for patients who have undergone transcatheter aortic valve replacement (TAVR) is unclear, so we investigated whether ECV analysis on CT is associated with clinical outcomes in TAVR candidates.Methods and Results: We analyzed 127 patients with severe AS who underwent preoperative CT for TAVR. We evaluated the utility of ECV analysis on single-energy CT for predicting patient prognosis after TAVR. The primary outcome was a composite of all-cause death and hospitalization due to heart failure (HF) after TAVR. 15 patients (12%) had composite outcomes: 4 deaths and 11 hospitalizations due to HF. In multivariate survival analysis using the Cox proportional hazard model, atrial fibrillation (AF) (hazard ratio (HR), 7.86; 95% confidence interval (CI), 2.57–24.03; P<0.001), history of congestive HF (HR, 4.91; 95% CI, 1.49–16.2; P=0.009) and ECV ≥32.6% on CT (HR, 6.96; 95% CI, 1.92–25.12; P=0.003) were independent predictors of composite outcomes. On Kaplan-Meier analysis, the higher ECV group (≥32.6%) had a significantly greater number of composite outcomes than the lower ECV group (P<0.001).Conclusions: ECV on CT is an independent predictor of prognosis after TAVR.
著者
Hiroyuki Takaoka Hirofumi Hayakawa Zubaidah Ya’cob
出版者
The Japan Society of Medical Entomology and Zoology
雑誌
衛生動物 (ISSN:04247086)
巻号頁・発行日
vol.70, no.1, pp.33-34, 2019-03-25 (Released:2019-04-18)
参考文献数
7
被引用文献数
4

Simulium (Simulium) thongsahuani Takaoka & Choochote (Diptera: Simuliidae) originally described from southern Thailand, is newly recorded from Perak, Peninsular Malaysia. This species represents the second member of the Simulium griseifrons species-group known from Peninsular Malaysia and brings the number of black fly species recorded from Peninsular Malaysia to 63. Some female and pupal morphological characters differing from the original description are noted.