著者

Yotaro Sekigawa Shigemitsu Tanaka Daiki Suzuki Junichi Miyamoto Norihito Nakamura Sho Torii Tsutomu Murakami Norihiko Kamioka Takeshi Ijichi Makoto Natsumeda Yohei Ohno Yuji Ikari

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.87, no.5, pp.672, 2023-04-25 (Released:2023-04-25)

参考文献数

1

著者

Yotaro Sekigawa Shigemitsu Tanaka Daiki Suzuki Junichi Miyamoto Norihito Nakamura Sho Torii Tsutomu Murakami Norihiko Kamioka Takeshi Ijichi Makoto Natsumeda Yohei Ohno Yuji Ikari

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-22-0818, (Released:2023-02-23)

参考文献数

1

著者

Hitomi Horinouchi Tomoo Nagai Yohei Ohno Junichi Miyamoto Tsutomu Murakami Norihiko Kamioka Koichiro Yoshioka Yuji Ikari

出版者

The Japanese Society of Internal Medicine

雑誌

Internal Medicine (ISSN:09182918)

巻号頁・発行日

pp.0638-22, (Released:2023-02-01)

参考文献数

26

被引用文献数

1

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Objective This study retrospectively compared the outcomes of emergently admitted patients with aortic stenosis (AS) with or without urgent transcatheter aortic valve replacement (TAVR). Methods Patients hospitalized between February 2015 and December 2019 for symptomatic AS were retrospectively analyzed by comparing the received conservative management (continued medical therapy with or without elective surgical transcatheter replacement [SAVR] or TAVR scheduled after the index hospitalization) and urgent TAVR (TAVR during the index hospitalization). Results The cohort comprised 114 patients with symptomatic AS who required emergency admission. Urgent TAVR was performed for 37 patients, while conservative management was provided for 77 patients, including 1 who received urgent SAVR. Urgent TAVR was more likely to be performed in patients with a history of hospitalization for heart failure, high New York Heart Association class scores, a lower clinical frailty scale at admission, and a high aortic valve peak velocity (P = 0.01, P <0.001, P <0.01, and P = 0.02, respectively). Kaplan-Meier analyses with log-rank test revealed favorable outcomes of urgent TAVR in all-cause mortality and cardiovascular events within 60 days of admission (p <0.01, p <0.01, respectively). Conclusions Urgent TAVR had better short-term outcomes in patients with symptomatic AS who required emergency hospital admission than conservative management. When considering urgent TAVR, patients with typical heart failure symptoms due to AS with a history of heart failure hospitalization and relatively little frailty can be selected.

著者

Nanako Takeda-Hirokawa Lian-Pin Neoh Hiroaki Akimoto Hiroshi Kaneko Takashi Hishikawa Iwao Sekigawa Hiroshi Hashimoto Shun-ichi Hirose Tsutomu Murakami Naoki Yamamoto Tohru Mimura Yutaro Kaneko

出版者

Center For Academic Publications Japan

雑誌

MICROBIOLOGY and IMMUNOLOGY (ISSN:03855600)

巻号頁・発行日

vol.41, no.9, pp.741-745, 1997 (Released:2008-03-17)

参考文献数

25

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To clarify the mechanism by which curdlan sulfate (CRDS) inhibits human immunodeficiency virus (HIV)-1 infection, we examined its influence on the binding of gp120 to CD4 molecules on T cells and macrophages, as well as on the production of TNF-α by gp120-stimulated macrophages (which promotes HIV-1 replication). CRDS treatment of cells not only inhibited the binding of HIV-1 gp120 to CD4+ cells, but also inhibited TNF-α production induced by gp120. Inhibition of HIV-1 infection by CRDS may be related to these two actions.

著者

Makoto Natsumeda Gaku Nakazawa Tsutomu Murakami Sho Torii Takeshi Ijichi Yohei Ohno Naoki Masuda Norihiko Shinozaki Nobuhiko Ogata Fuminobu Yoshimachi Yuji Ikari

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

vol.79, no.4, pp.802-807, 2015-03-25 (Released:2015-03-25)

参考文献数

28

被引用文献数

18 20

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Background:Percutaneous coronary intervention (PCI) guided with fractional flow reserve (FFR) has been shown to improve clinical outcome. Although coronary angiography is the standard method for PCI guidance, the visual severity of stenosis is not always correlated with functional severity, suggesting that there are additional angiographic factors that affect functional ischemia.Methods and Results:To evaluate angiographic predictors of positive FFR in stenotic lesions, angiographic characteristics of 260 consecutive patients (362 lesions) who underwent FFR testing from April 2009 to September 2012 were analyzed. A scoring system (STABLED score) using these predictors was developed and compared with quantitative coronary angiography (QCA). %Diameter stenosis >50% (OR, 8.43; P<0.0001), tandem lesion (OR, 4.00; P<0.0001), true bifurcation (OR, 2.42; P=0.028), lesion length >20 mm (OR, 5.40; P=0.0002), and distance from ostium <20 mm (OR, 1.94; P=0.028) were determined as independent predictors of positive FFR. Area under the ROC curve for probability of positive FFR using the STABLED score (Stenosis 2 points, TAndem lesion 1 point, Bifurcation 1 point, LEsion length 1 point, Distance from ostium 1 point) was 0.85, higher than that for QCA stenosis alone (0.76). STABLED score ≥3 had 72.3% sensitivity and 83.6% specificity for predicting positive FFR, and PPV was 76.7%.Conclusions:Specific angiographic features are applicable for predicting functional ischemia. STABLED score correlates well with FFR. (Circ J 2015; 79: 802–807)

著者

Yoichi Takaya Teiji Akagi Hidehiko Hara Hideaki Kanazawa Yuji Ikari Akihiro Isotani Shinichi Shirai Shunsuke Kubo Takao Morikawa Toru Naganuma Mike Saji Shingo Kuwata Go Hiasa Yusuke Watanabe Masahiro Yamawaki Masao Imai Takashi Matsumoto Masanori Yamamoto Tsutomu Murakami Masahiko Asami Isamu Mizote Tsukasa Okai Hiroki Bota Hiroshi Ito

出版者

The Japanese Circulation Society

雑誌

Circulation Journal (ISSN:13469843)

巻号頁・発行日

pp.CJ-22-0048, (Released:2022-04-05)

参考文献数

18

被引用文献数

3

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Background: Transcatheter mitral valve repair with the MitraClip system has been established in selected high-risk patients. The MitraClip procedure results in a relatively large iatrogenic atrial septal defect (iASD). This study aimed to investigate the prevalence and clinical course of iASD requiring transcatheter closure following the MitraClip procedure.Methods and Results: This study was conducted at all 59 institutions that perform transcatheter mitral valve repair with the MitraClip system in Japan. The data of patients on whom transcatheter iASD closure was performed were collected. Of the 2,722 patients who underwent the MitraClip procedure, 30 (1%) required transcatheter iASD closure. The maximum iASD size was 9±4 mm (range, 3–18 mm). The common clinical course of transcatheter iASD closure was hypoxemia with right-to-left shunt or right-sided heart failure with left-to-right shunt. Of the 30 patients, 22 (73%) required transcatheter closure within 24 h following the MitraClip procedure, including 12 with hypoxemia and 5 with right-sided heart failure complicated with cardiogenic shock. Of the 5 patients, 2 required mechanical circulatory support devices. Twenty-one patients immediately underwent transcatheter iASD closure, and hemodynamic deteriorations were resolved; however, 1 patient died without having undergone transcatheter closure.Conclusions: Transcatheter iASD closure was required in 1% of patients who underwent the MitraClip procedure. Many of these patients immediately underwent transcatheter iASD closure because of hypoxemia with right-to-left shunt or right-sided heart failure with left-to-right shunt.