著者

Rintaro Yokoyama Koichi Haraguchi Kazumi Ogane Seiichiro Imataka Yuki Nakamura Noriaki Hanyu Nobuki Matsuura Kazuyoshi Watanabe Takeo Itou

出版者

The Japanese Society for Neuroendovascular Therapy

雑誌

Journal of Neuroendovascular Therapy (ISSN:18824072)

巻号頁・発行日

pp.cr.2023-0050, (Released:2023-09-30)

参考文献数

19

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Objective: We report a case of near-occlusion of the common carotid bifurcation caused by a giant free-floating thrombus (FFT) successfully treated with mechanical thrombectomy using a large dual-layer stent retriever.Case Presentation: A 51-year-old man presented to our hospital with dysarthria, right hemiparalysis, and paresthesia. MRI revealed an acute infarction of the left cortical watershed zone, and MRA revealed decreased signals in the left common carotid bifurcation. Carotid ultrasonography demonstrated a giant FFT in the left common carotid bifurcation. Angiography revealed a giant thrombus extending from the left common carotid artery (CCA) to the internal carotid artery (ICA) and the external carotid artery. As direct aspiration from both a balloon-guided catheter (BGC) and an aspiration catheter (AC) was ineffective, we deployed a large dual-layer stent retriever from the ICA to the CCA with an AC-connected aspiration pump and retrieved it under manual aspiration through the BGC. The giant thrombus was successfully removed, and complete recanalization was achieved without distal embolisms.Conclusion: Although there is no established treatment for giant thrombi in the carotid artery, mechanical thrombectomy using a large dual-layer stent retriever may be an effective treatment option.

著者

Kazutaka UCHIDA Nobuyuki SAKAI Hiroshi YAMAGAMI Kohei UEMURA Hirotoshi IMAMURA Masataka TAKEUCHI Manabu SHIRAKAWA Fumihiro SAKAKIBARA Koichi HARAGUCHI Naoto KIMURA Kentaro SUZUKI Junichi AYABE Daisuke YAMAMOTO Seigo SHINDO Atsushi KIMOTO Kenichi MORITA Yoshinori AKIYAMA Hidesato TAKEZAWA Shingo TOYOTA Kanta TANAKA Shigen KASAKURA Eisuke TSUKAGOSHI Toshihiro UEDA Shinichi YOSHIMURA Japan Trevo Registry Investigators

出版者

The Japan Neurosurgical Society

雑誌

Neurologia medico-chirurgica (ISSN:04708105)

巻号頁・発行日

pp.2023-0069, (Released:2023-10-18)

参考文献数

18

被引用文献数

2

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Endovascular therapy (EVT) for real-world patients after extended time frames is associated with concerns about its efficacy and safety. We conducted a prospective registry at 77 centers between November 2019 and October 2020. The registry criteria included patients treated with Trevo Retriever alone or in combined therapy with an aspiration catheter. The primary outcome was effective reperfusion (thrombolysis in cerebral infarction grade ≥ 2b), the secondary outcome was a modified Rankin scale 0-2 at 90 days, and the safety outcomes were worsening of neurologic symptoms within 24 h postoperatively, intracranial hemorrhage (ICH) within 24 h after EVT and mortality. We also exlpored the difference between patients whose last known well time (LKWT) to a puncture was less than 6 h (0-6 h) and those whose LKWT was 6 h or more but less than 24 h (6-24 h). Among the 1041 patients registered, 1025 patients were analyzed. The mean age was 76.9 years, and 53.6% of the participants were males. The 6-24 h group was 206/998 (20.6%), the median National Institute of Health Stroke Scale (NIHSS) score at admission was 18, and the median Alberta Stroke Program Early CT score was 8. Combined technique as the first pass was used on 817 (79.7%) patients. The primary outcome was 934 (91.1%). The secondary outcome was 433/1021 (42.4%). Symptomatic ICH, any ICH, and mortality were 10/1019 (1.0%), 311/1019 (30.5%), and 75 (7.3%). In the subanalysis, the 6-24 h group was lower in NIHSS (median;18 vs 16), and the secondary outcome was not significantly different in the <6 h group. Even after treatment time expansion, this result was comparable to other Trevo-based trials and nationwide registries.

著者

Koichi HARAGUCHI Mineshi SAKAMOTO Akito MATSUYAMA Megumi YAMAMOTO Dang T. HUNG Hiromitsu NAGASAKA Keisuke UCHIDA Yasunori ITO Hitoshi KODAMATANI Milena HORVAT Hing M. CHAN Matthew RAND Ciprian M. CIRTIU Byoung-Gwon KIM Flemming NIELSEN Akane YAMAKAWA Nikolay MASHYANOV Nikolai PANICHEV Elena PANOVA Tomoaki WATANABE Naoki KANEKO Jun YOSHINAGA Ranny F. HERWATI Alfrida E. SUOTH Hirokatsu AKAGI

出版者

The Japan Society for Analytical Chemistry

雑誌

Analytical Sciences (ISSN:09106340)

巻号頁・発行日

vol.36, no.5, pp.561-567, 2020-05-10 (Released:2020-05-10)

参考文献数

28

被引用文献数

5

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A certified reference material, NIMD-01, was developed for the analysis of mercury speciation in human hair. We collected the hair of Vietnamese males from a barbershop in Hanoi in 2016 and prepared 1200 bottles containing 3 g of sieved and blended hair powder. The certified value was given on a dry-mass basis, with the moisture content obtained by drying at 85°C for 4 h. Certified values with the expanded uncertainties (coverage factor, k = 2) were as follows: methylmercury, 0.634 ± 0.071 mg kg−1 as mercury; total mercury, 0.794 ± 0.050 mg kg−1; copper, 12.8 ± 1.4 mg kg−1; zinc, 234 ± 29 mg kg−1; selenium, 1.52 ± 0.29 mg kg−1. An indicative arsenic concentration of 0.17 ± 0.03 mg kg−1 was measured. Extended uncertainties were estimated by sample homogeneity, long- and short-term stabilities, and a characterization from measurements made by collaborating laboratories.

著者

Koichi HARAGUCHI Mineshi SAKAMOTO Akito MATSUYAMA Megumi YAMAMOTO Dang T. HUNG Hiromitsu NAGASAKA Keisuke UCHIDA Yasunori ITO Hitoshi KODAMANTANI Milena HORVAT Hing M. CHAN Matthew RAND Ciprian M. CIRTIU Byoung-Gwon KIM Flemming NIELSEN Akane YAMAKAWA Nikolay MASHYANOV Nikolai PANICHEV Elena PANOVA Tomoaki WATANABE Naoki KANEKO Jun YOSHINAGA Ranny F. HERWATI Alfrida E. SUOTH Hirokatsu AKAGI

出版者

The Japan Society for Analytical Chemistry

雑誌

Analytical Sciences (ISSN:09106340)

巻号頁・発行日

pp.19SBP07, (Released:2020-03-06)

被引用文献数

5