- 著者
- Noriaki Iwahashi Hironori Takahashi Takeru Abe Kozo Okada Eiichi Akiyama Yasushi Matsuzawa Masaaki Konishi Nobuhiko Maejima Kiyoshi Hibi Masami Kosuge Toshiaki Ebina Kouichi Tamura Kazuo Kimura
- 出版者
- The Japanese Circulation Society
- 雑誌
- Circulation Reports (ISSN:24340790)
- 巻号頁・発行日
- vol.1, no.10, pp.422-430, 2019-10-10 (Released:2019-10-10)
- 参考文献数
- 30
- 被引用文献数
- 10
Background:We investigated the clinical usefulness of landiolol for rapid atrial fibrillation (AF) in patients with acute decompensated heart failure (ADHF) and identify the patients eligible for landiolol.Methods and Results:A total of 101 ADHF patients with reduced ejection fraction (HFrEF) with rapid AF were enrolled. Immediately after admission, an initial dose of landiolol was given (1 μg/kg−1/min−1), and then the dose was increased to decrease heart rate (HR) to <110 beats/min and change HR (∆HR) >20% in ≤24 h. Thirty-seven were monitored using right heart catheterization at 3 points (baseline, 1 μg/kg−1/min−1, and maximum dose). We checked the major adverse events (MAE) during initial hospitalization, which included cardiac death, HF prolongation (required i.v. treatment at 30 days), and worsening renal function. The average maximum dose of landiolol was 3.8±2.3 μg/kg−1/min−1. HR (P<0.0001) and pulmonary capillary wedge pressure (P=0.0008) decreased safely. MAE occurred in 39 patients. The patients with left ventricular (LV) end-diastolic volume index <84.0 mL/m2and mean blood pressure (mean BP) >97 mmHg had less frequent MAE (P<0.0001).Conclusions:Landiolol was effective for safely controlling rapid AF in patients with HFrEF with ADHF, leading to hemodynamic improvement and avoidance of short-term MAE, especially in patients with relatively smaller LV and higher BP.
- 著者
- Ryosuke Sato Yasushi Matsuzawa Tomohiro Yoshii Eiichi Akiyama Masaaki Konishi Hidefumi Nakahashi Yugo Minamimoto Yuichiro Kimura Kozo Okada Nobuhiko Maejima Noriaki Iwahashi Masami Kosuge Toshiaki Ebina Kazuo Kimura Kouichi Tamura Kiyoshi Hibi
- 出版者
- Japan Atherosclerosis Society
- 雑誌
- Journal of Atherosclerosis and Thrombosis (ISSN:13403478)
- 巻号頁・発行日
- pp.64368, (Released:2023-10-12)
- 参考文献数
- 48
- 被引用文献数
- 1
Aim: Low-density lipoprotein cholesterol (LDL-C) level reduction is highly effective in preventing the occurrence of a cardiovascular event. Contrariwise, an inverse association exists between LDL-C levels and prognosis in some patients with cardiovascular diseases—the so-called “cholesterol paradox.” This study aimed to investigate whether the LDL-C level on admission affects the long-term prognosis in patients who develop acute coronary syndrome (ACS) and to examine factors associated with poor prognosis in patients with low LDL-C levels. Methods: We enrolled 410 statin-naïve patients with ACS, whom we divided into low- and high-LDL-C groups based on an admission LDL-C cut-off (obtained from the Youden index) of 122 mg/dL. Endothelial function was assessed using the reactive hyperemia index 1 week after statin initiation. The primary composite endpoint included all-cause death, as well as myocardial infarction and ischemic stroke occurrences. Results: During a median follow-up period of 6.1 years, 76 patients experienced the primary endpoint. Multivariate Cox regression analysis revealed that patients in the low LDL-C group had a 2.3-fold higher risk of experiencing the primary endpoint than those in the high LDL-C group (hazard ratio, 2.34; 95% confidence interval, 1.29-4.27; p=0.005). In the low LDL-C group, slow gait speed (frailty), elevated chronic-phase high-sensitivity C-reactive protein levels (chronic inflammation), and endothelial dysfunction were significantly associated with the primary endpoint. Conclusions: Patients with low LDL-C levels at admission due to ACS had a significantly worse long-term prognosis than those with high LDL-C levels; frailty, chronic inflammation, and endothelial dysfunction were poor prognostic factors.
- 著者
- Yasushi Matsuzawa Masaaki Konishi Michikazu Nakai Yusuke Saigusa Masataka Taguri Masaomi Gohbara Toshiaki Ebina Masami Kosuge Kiyoshi Hibi Kunihiro Nishimura Yoshihiro Miyamoto Satoshi Yasuda Hisao Ogawa Yoshihiko Saito Naoki Nakayama Ichiro Takeuchi Kouichi Tamura Kazuo Kimura
- 出版者
- The Japanese Circulation Society
- 雑誌
- Circulation Journal (ISSN:13469843)
- 巻号頁・発行日
- vol.84, no.7, pp.1140-1146, 2020-06-25 (Released:2020-06-25)
- 参考文献数
- 16
- 被引用文献数
- 16 15
Background:Low population density may be associated with high mortality in acute myocardial infarction (AMI) patients. The purpose of this study was to investigate the effect of population density and hospital primary percutaneous coronary intervention (PCI) volume on AMI in-hospital mortality in Japan.Methods and Results:This is a retrospective study of 64,414 AMI patients transported to hospital by ambulances. The main outcome measure was in-hospital mortality. The median population density was 1,147 (interquartile range, 342–5,210) persons/km2. There was a significant negative relationship between population density and in-hospital mortality (OR for a quartile down in population density 1.086, 95% CI 1.042–1.132, P<0.001). Patients in less densely populated areas were more often transported to hospitals with a lower primary PCI volume, and they had a longer distance to travel. By using multivariable analysis, primary PCI volume was found to be significantly associated with in-hospital mortality, but distance to hospital was not. When divided into the low- and high-volume hospitals, using the cut-off value of 115 annual primary PCI procedures, the increase in in-hospital mortality associated with low population density was observed only in patients hospitalized in the low-volume hospitals.Conclusions:Increased in-hospital mortality related to low population density was observed only in AMI patients who were transported to the low primary PCI volume hospitals, but not in those who were transported to high-volume hospitals.
- 著者
- Nobuhiko Maejima Kiyoshi Hibi Kenichiro Saka Eiichi Akiyama Masaaki Konishi Mitsuaki Endo Noriaki Iwahashi Kengo Tsukahara Masami Kosuge Toshiaki Ebina Satoshi Umemura Kazuo Kimura
- 出版者
- The Japanese Circulation Society
- 雑誌
- Circulation Journal (ISSN:13469843)
- 巻号頁・発行日
- vol.80, no.6, pp.1413-1419, 2016-05-25 (Released:2016-05-25)
- 参考文献数
- 31
- 被引用文献数
- 77 110
Background:Target lesion calcification is known to influence percutaneous coronary intervention. We evaluated the effects of rotational atherectomy (RA) and subsequent balloon angioplasty on calcified coronary lesions using optical coherence tomography (OCT).Methods and Results:Thirty-seven calcified lesions in 36 patients were treated with RA followed by balloon angioplasty and stent implantation. In all patients, serial OCT images obtained after RA, after balloon angioplasty, and after stent implantation were analyzed at 1-mm intervals. The arc and thickness of the calcium component were measured after RA. The formation of calcium cracks was assessed after balloon angioplasty. A total of 625 segments were analyzed. The formation of calcium crack after balloon angioplasty was associated with greater stent cross-sectional area (7.38±1.92 vs. 7.13±1.68 mm2, P=0.035) as well as greater lumen gain (3.89±1.53 vs. 3.40±1.46 mm2, P<0.001). Segments with calcium cracks after angioplasty had a larger median calcium arc (360°, IQR, 246–360° vs. 147°, IQR, 118–199°, P<0.001) and a thinner calcium thickness (0.53±0.28 vs. 1.02±0.42 mm, P<0.001) than those without. The optimal thresholds of calcium arc and calcium thickness for the prediction of cracks were 227° and 0.67 mm, respectively.Conclusions:Larger calcium arc and thinner calcium thickness were associated with formation of calcium crack. Presence of calcium crack was the important determinant of optimal stent expansion. (Circ J 2016; 80: 1413–1419)
- 著者
- Masaaki Konishi Tomotake Morita Tokuma Fukuoka Tomohiro Imura Shingo Uemura Hiroyuki Iwabuchi Dai Kitamoto
- 出版者
- Japan Oil Chemists' Society
- 雑誌
- Journal of Oleo Science (ISSN:13458957)
- 巻号頁・発行日
- vol.67, no.4, pp.489-496, 2018 (Released:2018-04-01)
- 参考文献数
- 34
- 被引用文献数
- 18 40
We discovered that Candida floricola ZM1502 is capable of selectively producing the promising hydrophilic biosurfactants, acid-form sophorolipids (SLs), from glycerol. However, productivity was very low (approximately 3.5 g L–1) under the initial culture conditions. Here, we describe the design of culture medium for abundant production of acid-form SLs by C. floricola ZM1502 using waste glycerol and hydrophobic substrates in order to develop a method for SL production and disposal of waste glycerol produced by oleo-chemical industries. Urea provided the best nitrogen source for acid-form SL production from glycerol among four nitrogen sources tested [urea, NaNO3, NH4NO3, and (NH4)2SO4]. Among carbon sources we compared, hydrophobic substrates (soybean oil and oleic acid) led to productivities of approximately 20 g L–1, indicating that hydrophobic substrates provided fatty acid moieties for SL production. Addition of olive oil and oleic acid to waste glycerol enhanced acid-form SL production to 42.1 ± 0.9 and 37.5 ± 3.4 g L–1, respectively. To develop a potential industrial process, we explored other suitable hydrophobic substrates for SL production, which were obtained on site from oleo-chemical industries. Alkyl C18 esters (Pastell M-182), along with waste glycerol, increased acid-form SL production to 48.0 ± 3.4 g L–1 over a 7-d period. Furthermore, we demonstrated abundant production of acidic SLs at the mini-jar fermenter scale, obtaining 169 g L–1 over 180 h using a fed-batch cultivation technique. Efficient acid-form SL production by C. floricola could have a great impact on the development of bio-industrial processes using waste glycerol as a substrate.
- 著者
- Masaomi Gohbara Kunihiro Nishimura Michikazu Nakai Yoko Sumita Tsutomu Endo Yasushi Matsuzawa Masaaki Konishi Masami Kosuge Toshiaki Ebina Kouichi Tamura Kazuo Kimura
- 出版者
- The Japanese Circulation Society
- 雑誌
- Circulation Reports (ISSN:24340790)
- 巻号頁・発行日
- vol.1, no.1, pp.20-28, 2019-01-10 (Released:2019-01-10)
- 参考文献数
- 30
- 被引用文献数
- 7
Background: The aim of this study was to clarify the clinical impact of activities of daily living (ADL) using the Japanese Registry of All Cardiac and Vascular Diseases-Diagnosis Procedure Combination (JROAD-DPC) database. Methods and Results: From April 2012 to March 2014, the JROAD-DPC database included 206,643 patients with acute coronary syndrome (ACS; n=49,784), heart failure (HF; n=136,878), or aortic aneurysm/dissection (Aorta; n=19,981). We divided them into 3 categories with regard to age (low, 20–59 years; middle, 60–79 years; high, ≥80 years) and admission ADL (low, Barthel index [BI] 0–70; middle, BI 75–95; high, BI 100). ACS, HF, and Aorta patients with low ADL had higher in-hospital mortality rates (18.3%, 16.7%, and 33.4%) than those with middle or high ADL (P<0.001, χ2 test). On multivariable analysis, BI on admission was associated with in-hospital mortality of ACS (OR, 0.986 per 1 BI; P<0.001), HF (OR, 0.986 per 1 BI; P<0.001), and Aorta (OR, 0.986 per 1 BI; P<0.001), adjusted for gender, age, body mass index, hypertension, diabetes mellitus, dyslipidemia, and the Charlson comorbidity index. Moreover, patients with low age and low ADL had a higher in-hospital mortality rate than those with high age and high ADL in regard to HF (8.6% vs. 6.0%). Conclusions: According to JROAD-DPC data, assessment of admission ADL is important in patients with cardiovascular disease.
- 著者
- Yasushi Matsuzawa Seigo Sugiyama Koichi Sugamura Hitoshi Sumida Hirofumi Kurokawa Koichiro Fujisue Masaaki Konishi Eiichi Akiyama Hiroyuki Suzuki Naoki Nakayama Megumi Yamamuro Satomi Iwashita Hideaki Jinnouchi Kazuo Kimura Satoshi Umemura Hisao Ogawa
- 出版者
- 日本循環器学会
- 雑誌
- Circulation Journal (ISSN:13469843)
- 巻号頁・発行日
- pp.CJ-13-0549, (Released:2013-08-28)
- 参考文献数
- 29
- 被引用文献数
- 15 33
Background: Simple office-based counseling for diet and exercise does not appear to positively affect success rates in metabolic syndrome (MetS) patients. The utility of the lifestyle modification self-assessment score (Self-AS) in the improvement of endothelial function by office-based counseling for patients with MetS was investigated. Methods and Results: Patients with MetS (n=207) and age- and sex-matched individuals without MetS (n=124) were enrolled in this cross-sectional study. Endothelial function was assessed using reactive hyperemia-peripheral arterial tonometry index (RHI). Patients with MetS had significant endothelial dysfunction compared with those without MetS (RHI, 0.502±0.178 vs. 0.614±0.229; P<0.001). Seventy MetS patients participating in the prospective interventional study received simple office-based lifestyle modification counseling that was accompanied by Self-AS questionnaire after 10 months. RHI was significantly improved following lifestyle modifications (from 0.452±0.136 to 0.547±0.202, P<0.001). Reductions in waist circumference (R2=0.094, P=0.01) and increased high-density lipoprotein cholesterol (R2=0.227, P<0.001) independently correlated with improved RHI. Self-AS significantly correlated with changes in waist circumference (r=−0.57, P<0.001) and RHI (r=0.30, P=0.02). Patients with a good achievement of lifestyle modifications (higher Self-AS) had significant improvement in endothelial function compared with those with lower scores (% change in RHI, +48.7±61.6 vs. +7.8±35.1, P=0.001). Conclusions: Good achievement of lifestyle modifications as evaluated on Self-AS significantly improved endothelial function with concomitant reductions in waist circumferences in MetS patients.