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Honda Y, Takahashi A, Tanaka N, Kajiwara Y, Sasaki R, Kataoka H, Sakamoto J, Okita M. Electrical Stimulation-Based Twitch Exercise Suppresses Progression of Immobilization-Induced Muscle Fibrosis via Downregulation of PGC-1?/VEGF Pathway. Physiol Res 2024; 73:285-294. [PMID: 38710059 PMCID: PMC11081190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2023] [Accepted: 11/16/2023] [Indexed: 05/08/2024] Open
Abstract
This study aimed to determine whether electrical stimulation-based twitch exercise is effective in inhibiting the progression of immobilization-induced muscle fibrosis. 19 Wistar rats were randomly divided into a control group (n=6), an immobilization group (n=6; with immobilization only), and a Belt group (n=7; with immobilization and twitch exercise through the belt electrode device, beginning 2 weeks after immobilization). The bilateral soleus muscles were harvested after the experimental period. The right soleus muscles were used for histological analysis, and the left soleus muscles were used for biochemical and molecular biological analysis. As a result, in the picrosirius red images, the perimysium and endomysium were thicker in both the immobilization and Belt groups compared to the control group. However, the perimysium and endomysium thickening were suppressed in the Belt group. The hydroxyproline content and alpha-SMA, TGF-beta1, and HIF-1alpha mRNA expressions were significantly higher in the immobilization and belt groups than in the control group. These expressions were significantly lower in the Belt group than in the immobilization group. The capillary-to-myofiber ratio and the mRNA expressions of VEGF and PGC-1alpha were significantly lower in the immobilization and belt groups than in the control group, these were significantly higher in the Belt group than in the immobilization group. From these results, Electrical stimulation-based twitch exercise using the belt electrode device may prevent the progression of immobilization-induced muscle fibrosis caused by downregulating PGC-1alpha/VEGF pathway, we surmised that this intervention strategy might be effective against the progression of muscle contracture. Keywords: Immobilization, Skeletal muscle, Fibrosis, Electrical stimulation-based twitch exercise, PGC-1alpha/VEGF pathway.
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Affiliation(s)
- Y Honda
- Department of Physical Therapy Science, Nagasaki University Graduate School of Biomedical Sciences, Sakamoto, Nagasaki, Japan.
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Emori H, Shiono Y, Kuriyama N, Honda Y, Kadooka K, Kudo T, Ogata K, Kimura T, Nishihira K, Tanaka A, Shibata Y. Impact of Periprocedural Myocardial Injury on Long-Term Outcomes After Percutaneous Coronary Intervention Requiring Atherectomy. Am J Cardiol 2024; 222:S0002-9149(24)00318-7. [PMID: 38677665 DOI: 10.1016/j.amjcard.2024.04.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/20/2024] [Accepted: 04/19/2024] [Indexed: 04/29/2024]
Abstract
The prognostic implications of cardiac troponin elevation after percutaneous coronary intervention (PCI) with atherectomy have not been established. The aim of this study was to investigate the incidence of periprocedural myocardial injury (PMI) and its association with cardiovascular events in patients with severely calcified lesions who underwent PCI with atherectomy. The study analyzed 346 patients (377 lesions) who underwent PCI with atherectomy between January 2018 and December 2021. Peak post-PCI high-sensitivity cardiac troponin (hs-cTn) was measured. The primary outcome was target lesion failure (TLF), a composite of cardiovascular death, target vessel myocardial infarction, and clinically driven target lesion revascularization. A lesion-based analysis was conducted to assess the association of PMI with TLF up to 5 years after PCI. Increase of hs-cTn was seen with 362 lesions (96%), and significant PMI, defined as hs-cTn increase ≥70 × upper reference limit, was seen with 83 lesions (22%). Significant PMI was associated with a significantly greater risk of TLF (adjusted hazard ratio 1.93, 95% confidence interval 1.12 to 3.30, p = 0.017), primarily driven by an increased risk of cardiovascular death (adjusted hazard ratio 5.29, 95% confidence interval 1.46 to 19.16, p = 0.011). In conclusion, hs-cTn increase was frequently observed in patients who underwent PCI with atherectomy, and significant PMI was associated with an increased risk of TLF and cardiovascular death.
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Affiliation(s)
- Hiroki Emori
- Department of Cardiology, Miyazaki Medical Association Hospital, Miyazaki, Japan.
| | - Yasutsugu Shiono
- Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan
| | - Nehiro Kuriyama
- Department of Cardiology, Miyazaki Medical Association Hospital, Miyazaki, Japan
| | - Yasuhiro Honda
- Department of Cardiology, Miyazaki Medical Association Hospital, Miyazaki, Japan
| | - Kosuke Kadooka
- Department of Cardiology, Miyazaki Medical Association Hospital, Miyazaki, Japan
| | - Takeaki Kudo
- Department of Cardiology, Miyazaki Medical Association Hospital, Miyazaki, Japan
| | - Kenji Ogata
- Department of Cardiology, Miyazaki Medical Association Hospital, Miyazaki, Japan
| | - Toshiyuki Kimura
- Department of Cardiology, Miyazaki Medical Association Hospital, Miyazaki, Japan
| | - Kensaku Nishihira
- Department of Cardiology, Miyazaki Medical Association Hospital, Miyazaki, Japan
| | - Atsushi Tanaka
- Department of Cardiovascular Medicine, Wakayama Medical University, Wakayama, Japan
| | - Yoshisato Shibata
- Department of Cardiology, Miyazaki Medical Association Hospital, Miyazaki, Japan
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Takahashi A, Honda Y, Tanaka N, Miyake J, Maeda S, Kataoka H, Sakamoto J, Okita M. Skeletal Muscle Electrical Stimulation Prevents Progression of Disuse Muscle Atrophy via Forkhead Box O Dynamics Mediated by Phosphorylated Protein Kinase B and Peroxisome Proliferator-Activated Receptor gamma Coactivator-1alpha. Physiol Res 2024; 73:105-115. [PMID: 38466009 PMCID: PMC11019614 DOI: 10.33549/physiolres.935157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2023] [Accepted: 10/12/2023] [Indexed: 04/26/2024] Open
Abstract
Although electrical muscle stimulation (EMS) of skeletal muscle effectively prevents muscle atrophy, its effect on the breakdown of muscle component proteins is unknown. In this study, we investigated the biological mechanisms by which EMS-induced muscle contraction inhibits disuse muscle atrophy progression. Experimental animals were divided into a control group and three experimental groups: immobilized (Im; immobilization treatment), low-frequency (LF; immobilization treatment and low-frequency muscle contraction exercise), and high-frequency (HF; immobilization treatment and high-frequency muscle contraction exercise). Following the experimental period, bilateral soleus muscles were collected and analyzed. Atrogin-1 and Muscle RING finger 1 (MuRF-1) mRNA expression levels were significantly higher for the experimental groups than for the control group but were significantly lower for the HF group than for the Im group. Peroxisome proliferator-activated receptor gamma coactivator-1alpha (PGC-1alpha) mRNA and protein expression levels in the HF group were significantly higher than those in the Im group, with no significant differences compared to the Con group. Both the Forkhead box O (FoxO)/phosphorylated FoxO and protein kinase B (AKT)/phosphorylated AKT ratios were significantly lower for the Im group than for the control group and significantly higher for the HF group than for the Im group. These results, the suppression of atrogin-1 and MuRF-1 expression for the HF group may be due to decreased nuclear expression of FoxO by AKT phosphorylation and suppression of FoxO transcriptional activity by PGC-1alpha. Furthermore, the number of muscle contractions might be important for effective EMS.
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Affiliation(s)
- A Takahashi
- Institute of Biomedical Sciences (Health Sciences), Nagasaki University, Nagasaki, Japan.
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Nishihira K, Nakai M, Kuriyama N, Kadooka K, Honda Y, Emori H, Yamamoto K, Nishino S, Kudo T, Ogata K, Kimura T, Kaikita K, Shibata Y. Guideline-Directed Medical Therapy for Elderly Patients With Acute Myocardial Infarction Who Undergo Percutaneous Coronary Intervention - Insights From a Retrospective Observational Study. Circ J 2024:CJ-23-0837. [PMID: 38233147 DOI: 10.1253/circj.cj-23-0837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
BACKGROUND The efficacy of guideline-directed medical therapy (GDMT) in the elderly remains unclear. This study evaluated the impact of GDMT (aspirin or a P2Y12inhibitor, angiotensin-converting enzyme inhibitor or angiotensin receptor blocker, β-blocker, and statin) at discharge on long-term mortality in elderly patients with acute myocardial infarction (AMI) who had undergone percutaneous coronary intervention (PCI).Methods and Results: Of 2,547 consecutive patients with AMI undergoing PCI in 2009-2020, we retrospectively analyzed 573 patients aged ≥80 years. The median follow-up period was 1,140 days. GDMT was prescribed to 192 (33.5%) patients at discharge. Compared with patients without GDMT, those with GDMT were younger and had higher rates of ST-segment elevation myocardial infarction and left anterior descending artery culprit lesion, higher peak creatine phosphokinase concentration, and lower left ventricular ejection fraction (LVEF). After adjusting for confounders, GDMT was independently associated with a lower cardiovascular death rate (hazard ratio [HR] 0.35; 95% confidence interval [CI] 0.16-0.81), but not with all-cause mortality (HR 0.77; 95% CI 0.50-1.18). In the subgroup analysis, the favorable impact of GDMT on cardiovascular death was significant in patients aged 80-89 years, with LVEF <50%, or with an estimated glomerular filtration rate ≥30 mL/min/1.73 m2. CONCLUSIONS GDMT in patients with AMI aged ≥80 years undergoing PCI was associated with a lower cardiovascular death rate but not all-cause mortality.
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Affiliation(s)
| | - Michikazu Nakai
- Clinical Research Support Center, University of Miyazaki Hospital
| | - Nehiro Kuriyama
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Kosuke Kadooka
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Yasuhiro Honda
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Hiroki Emori
- Department of Cardiology, Miyazaki Medical Association Hospital
| | | | - Shun Nishino
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Takeaki Kudo
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Kenji Ogata
- Department of Cardiology, Miyazaki Medical Association Hospital
| | | | - Koichi Kaikita
- Division of Cardiovascular Medicine and Nephrology, Department of Internal Medicine, Faculty of Medicine, University of Miyazaki
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Arora S, Zimmermann FM, Solberg OG, Nytrøen K, Aaberge L, Okada K, Ahn JM, Honda Y, Khush KK, Angeras O, Karason K, Gullestad L, Fearon WF. Prognostic value of intravascular ultrasound early after heart transplantation. Eur Heart J 2023; 44:5160-5162. [PMID: 37850514 DOI: 10.1093/eurheartj/ehad648] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Revised: 07/14/2023] [Accepted: 09/13/2023] [Indexed: 10/19/2023] Open
Affiliation(s)
- Satish Arora
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, 0372 Oslo, Norway
- K.G. Jebsen Cardiac Research Center and Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Kirkeveien 166, 0450 Oslo, Norway
| | - Frederik M Zimmermann
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 265 Campus Drive, Stanford, CA 94305, USA
- Department of Cardiology, Catharina Hospital, Eindhoven, The Netherlands
| | - Ole Geir Solberg
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, 0372 Oslo, Norway
| | - Kari Nytrøen
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, 0372 Oslo, Norway
| | - Lars Aaberge
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, 0372 Oslo, Norway
| | - Kozo Okada
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 265 Campus Drive, Stanford, CA 94305, USA
| | - Jung-Min Ahn
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 265 Campus Drive, Stanford, CA 94305, USA
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 265 Campus Drive, Stanford, CA 94305, USA
| | - Kiran K Khush
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 265 Campus Drive, Stanford, CA 94305, USA
| | - Oscar Angeras
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Kristjan Karason
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital, Rikshospitalet, Sognsvannveien 20, 0372 Oslo, Norway
- K.G. Jebsen Cardiac Research Center and Center for Heart Failure Research, Faculty of Medicine, University of Oslo, Kirkeveien 166, 0450 Oslo, Norway
| | - William F Fearon
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 265 Campus Drive, Stanford, CA 94305, USA
- VA Palo Alto Health Care System, 3801 Miranda Avenue, Palo Alto, CA 94304, USA
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Tsukada K, Abe Y, Enokizono A, Goke T, Hara M, Honda Y, Hori T, Ichikawa S, Ito Y, Kurita K, Legris C, Maehara Y, Ohnishi T, Ogawara R, Suda T, Tamae T, Wakasugi M, Watanabe M, Wauke H. First Observation of Electron Scattering from Online-Produced Radioactive Target. Phys Rev Lett 2023; 131:092502. [PMID: 37721815 DOI: 10.1103/physrevlett.131.092502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2023] [Accepted: 06/21/2023] [Indexed: 09/20/2023]
Abstract
We successfully performed electron scattering off unstable nuclei which were produced online from the photofission of uranium. The target ^{137}Cs ions were trapped with a new target-forming technique that makes a high-density stationary target from a small number of ions by confining them in an electron storage ring. After developments of target generation and transportation systems and the beam stacking method to increase the ion beam intensity up to approximately 2×10^{7} ions per pulse beam, an average luminosity of 0.9×10^{26} cm^{-2} s^{-1} was achieved for ^{137}Cs. The obtained angular distribution of elastically scattered electrons is consistent with a calculation. This success marks the realization of the anticipated femtoscope which clarifies the structures of exotic and short-lived unstable nuclei.
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Affiliation(s)
- K Tsukada
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - Y Abe
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - A Enokizono
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
- Department of Physics, Rikkyo University, Toshima, Tokyo 171-8501, Japan
| | - T Goke
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Hara
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - Y Honda
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Hori
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - S Ichikawa
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - Y Ito
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - K Kurita
- Department of Physics, Rikkyo University, Toshima, Tokyo 171-8501, Japan
| | - C Legris
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Maehara
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - T Ohnishi
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - R Ogawara
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - T Suda
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Tamae
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Wakasugi
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - M Watanabe
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - H Wauke
- Nishina Center for Accelerator-Based Science, RIKEN, Wako, Saitama 351-0198, Japan
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
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Tanaka S, Okada K, Kitahara H, Luikart H, Yock PG, Yeung AC, Schnittger I, Tremmel JA, Fitzgerald PJ, Khush KK, Fearon WF, Honda Y. Impact of myocardial bridging on coronary artery plaque formation and long-term mortality after heart transplantation. Int J Cardiol 2023; 379:24-32. [PMID: 36893856 PMCID: PMC10085846 DOI: 10.1016/j.ijcard.2023.03.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 02/25/2023] [Accepted: 03/05/2023] [Indexed: 03/09/2023]
Abstract
OBJECTIVES This study aimed to explore the impact of myocardial bridging (MB) on early development of cardiac allograft vasculopathy and long-term graft survival after heart transplantation. BACKGROUND MB has been reported to be associated with acceleration of proximal plaque development and endothelial dysfunction in native coronary atherosclerosis. However, its clinical significance in heart transplantation remains unclear. METHODS In 103 heart-transplant recipients, serial (baseline and 1-year post-transplant) volumetric intravascular ultrasound (IVUS) analyses were performed in the first 50 mm of the left anterior descending (LAD) artery. Standard IVUS indices were evaluated in 3 equally divided LAD segments (proximal, middle, and distal segments). MB was defined by IVUS as an echolucent muscular band lying on top of the artery. The primary endpoint was death or re-transplantation, assessed for up to 12.2 years (median follow-up: 4.7 years). RESULTS IVUS identified MB in 62% of the study population. At baseline, MB patients had smaller intimal volume in the distal LAD than non-MB patients (p = 0.002). During the first year, vessel volume decreased diffusely irrespective of the presence of MB. Intimal growth diffusely distributed in non-MB patients, whereas MB patients demonstrated significantly augmented intimal formation in the proximal LAD. Kaplan-Meier analysis revealed significantly lower event-free survival in patients with versus without MB (log-rank p = 0.02). In multivariate analysis, the presence of MB was independently associated with late adverse events [hazard ratio 5.1 (1.6-22.2)]. CONCLUSION MB appears to relate to accelerated proximal intimal growth and reduced long-term survival in heart-transplant recipients.
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Affiliation(s)
- Shigemitsu Tanaka
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Kozo Okada
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Hideki Kitahara
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Helen Luikart
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Paul G Yock
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Alan C Yeung
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Ingela Schnittger
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Jennifer A Tremmel
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Peter J Fitzgerald
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Kiran K Khush
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - William F Fearon
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA.
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Kawarada O, Otsuka F, Miki K, Ikutomi M, Okada K, Ogata S, Nishimura K, Fitzgerald PJ, Honda Y. Heterogeneous vascular response after implantation of bare nitinol self-expanding stents in the swine femoropopliteal artery. Cardiovasc Interv Ther 2023; 38:210-222. [PMID: 36255689 PMCID: PMC10020252 DOI: 10.1007/s12928-022-00889-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Accepted: 08/17/2022] [Indexed: 11/02/2022]
Abstract
BACKGROUND Mechanism of femoropopliteal in-stent restenosis has been underappreciated. AIM The aim of this animal study was to elucidate vascular response after femoropopliteal bare nitinol self-expanding stents (SESs) implantation. METHODS Misago, Smart Flex, or Innova stent was randomly implanted in 36 swine femoropopliteal arteries. At week 4, quantitative vessel analysis (QVA) was performed on 36 legs, of which 18 underwent histological evaluation after angiography. The remaining 18 legs underwent QVA and histological evaluation at week 13. RESULTS Fibrin deposition was excessive at week 4. Internal elastic lamina (IEL) progressively enlarged over time, and vessel injury developed from mild level at week 4 to moderate level at week 13. Vessel inflammatory reaction was mild to moderate at week 4, and was moderate to severe at week 13. Increased fibrin deposition was an early-acting, IEL enlargement and increased vessel inflammation were long-acting, and increased vessel injury and giant cells infiltration were late-acting contributors to neointimal hyperplasia (NIH). Stent type altered time-dependent process of vessel injury, vessel inflammation, eosinophils and giant cells infiltration. Misago had less fibrin deposition and vessel enlargement, and less progressive vessel injury, vessel inflammation, and eosinophils and giant cells infiltration. Net lumen as assessed by percent diameter stenosis or minimum lumen diameter was preserved with Misago, but was not preserved with the other stents. CONCLUSIONS In the context of bare nitinol SES platform with less progressive mechanical stress and inflammatory reaction, the advantage of less NIH outweighed the disadvantage of less vessel enlargement, leading to net lumen preservation.
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Affiliation(s)
- Osami Kawarada
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita city, Osaka, 564-8565, Japan.
- Kawarada Cardio Foot Vascular Clinic, Osaka, Japan.
| | - Fumiyuki Otsuka
- Department of Cardiovascular Medicine, National Cerebral and Cardiovascular Center, 6-1 Kishibe-Shimmachi, Suita city, Osaka, 564-8565, Japan
| | - Kojiro Miki
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Masayasu Ikutomi
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Kozo Okada
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Soshiro Ogata
- Department of Preventive Medicine and Epidemiology, Center for Cerebral and Cardiovascular Disease Information, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Kunihiro Nishimura
- Department of Preventive Medicine and Epidemiology, Center for Cerebral and Cardiovascular Disease Information, National Cerebral and Cardiovascular Center, Osaka, Japan
| | - Peter J Fitzgerald
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
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Honda Y. Intracoronary Imaging and Its Use in Interventional Cardiology. Interv Cardiol Clin 2023; 12:xv-xvi. [PMID: 36922071 DOI: 10.1016/j.iccl.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2023]
Affiliation(s)
- Yasuhiro Honda
- Cardiovascular Core Analysis Laboratory, Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, 300 Pasteur Drive, Room H3554, Stanford, CA 94305, USA.
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10
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Honda Y, Nishihira K, Shibata Y, Asada Y. Early-phase restenosis following directional coronary atherectomy and paclitaxel-coated balloon angioplasty: a histopathological analysis. Eur Heart J 2023; 44:1098. [PMID: 36702624 DOI: 10.1093/eurheartj/ehad006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Affiliation(s)
- Yasuhiro Honda
- Department of Cardiology, Miyazaki Medical Association Hospital., 1173 Arita, Miyazaki 880-2102, Japan
| | - Kensaku Nishihira
- Department of Cardiology, Miyazaki Medical Association Hospital., 1173 Arita, Miyazaki 880-2102, Japan
| | - Yoshisato Shibata
- Department of Cardiology, Miyazaki Medical Association Hospital., 1173 Arita, Miyazaki 880-2102, Japan
| | - Yujiro Asada
- Department of Pathology, Miyazaki Medical Association Hospital, Miyazaki, Japan
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11
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Honda Y, Nishihira K, Shibata Y. Efficacy of Novel Intravascular Lithoplasty for a Tortuous and Severely Calcified Coronary Lesion Unsuccessfully Treated With Rotational Atherectomy. Circ J 2023; 87:671. [PMID: 36823077 DOI: 10.1253/circj.cj-22-0759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Affiliation(s)
- Yasuhiro Honda
- Department of Cardiology, Miyazaki Medical Association Hospital
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12
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Emori H, Shiono Y, Kuriyama N, Honda Y, Ebihara S, Kadooka K, Ogata K, Kimura T, Nishihira K, Tanaka A, Shibata Y. Calcium Fracture After Intravascular Lithotripsy as Assessed With Optical Coherence Tomography. Circ J 2023; 87:799-805. [PMID: 36642511 DOI: 10.1253/circj.cj-22-0695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
BACKGROUND Plaque characteristics associated with effective intravascular lithotripsy (IVL) treatment of calcification have not been investigated. This study identified calcified plaque characteristics that favor the use of IVL.Methods and Results: Optical coherence tomography (OCT) was performed in 16 calcified lesions in 16 patients treated with IVL and coronary stenting. Cross-sectional OCT images in 262 segments matched across pre-IVL, post-IVL, and post-stenting time points were analyzed. After IVL, 66 (25%) segments had calcium fracture. In multivariable analysis, calcium arc (odds ratio [OR] 1.22; 95% confidence interval [CI] 1.13-1.32; P<0.0001), superficial calcification (OR 6.98; 95% CI 0.07-55.57; P=0.0182), minimum calcium thickness (OR 0.66; 95% CI 0.51-0.86; P=0.0013), and nodular calcification (OR 0.24; 95% CI 0.08-0.70; P=0.0056) were associated with calcium fracture. After stenting, stent area was larger for segments with fracture (8.0 [6.9-10.6] vs. 7.1 [5.2-8.9] mm2; P=0.004). CONCLUSIONS Post-IVL calcium fracture is more likely in calcified lesions with lower thickness, a larger calcium arc, superficial calcification, and non-nodular calcification, leading to a larger stent area.
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Affiliation(s)
- Hiroki Emori
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Yasutsugu Shiono
- Department of Cardiovascular Medicine, Wakayama Medical University
| | - Nehiro Kuriyama
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Yasuhiro Honda
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Suguru Ebihara
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Kosuke Kadooka
- Department of Cardiology, Miyazaki Medical Association Hospital
| | - Kenji Ogata
- Department of Cardiology, Miyazaki Medical Association Hospital
| | | | | | - Atsushi Tanaka
- Department of Cardiovascular Medicine, Wakayama Medical University
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13
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Matsuura H, Mukai Y, Honda Y, Nishino S, Kang H, Kadooka K, Ogata K, Kimura T, Koiwaya H, Nishihira K, Kuriyama N, Shibata Y. Intra- and Postprocedural Management of Coronary Artery Perforation During Percutaneous Coronary Intervention. Circ Rep 2022; 4:517-525. [DOI: 10.1253/circrep.cr-22-0092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/11/2022] Open
Affiliation(s)
- Hirohide Matsuura
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Yasushi Mukai
- Department of Cardiology, Japanese Red Cross Fukuoka Hospital
| | - Yasuhiro Honda
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Shun Nishino
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Honsa Kang
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Kosuke Kadooka
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Kenji Ogata
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Toshiyuki Kimura
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Hiroshi Koiwaya
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Kensaku Nishihira
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Nehiro Kuriyama
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
| | - Yoshisato Shibata
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center
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14
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Nishihira K, Kuriyama N, Kadooka K, Honda Y, Yamamoto K, Nishino S, Ebihara S, Ogata K, Kimura T, Koiwaya H, Shibata Y. Outcomes of Elderly Patients With Acute Myocardial Infarction and Heart Failure Who Undergo Percutaneous Coronary Intervention. Circ Rep 2022; 4:474-481. [PMID: 36304433 PMCID: PMC9535130 DOI: 10.1253/circrep.cr-22-0048] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Revised: 07/18/2022] [Accepted: 08/04/2022] [Indexed: 03/06/2024] Open
Abstract
Background: As life expectancy rises, percutaneous coronary intervention (PCI) is being performed more frequently, even in elderly patients with acute myocardial infarction (AMI). This study evaluated outcomes of elderly patients with AMI complicated by heart failure (AMIHF), as defined by Killip Class ≥2 at admission, who undergo PCI. Methods and Results: We retrospectively analyzed 185 patients with AMIHF aged ≥80 years (median age 85 years) who underwent PCI between 2009 and 2019. The median follow-up period was 572 days. The rates of in-hospital major bleeding (Bleeding Academic Research Consortium Type 3 or 5) and in-hospital all-cause mortality were 20.5% and 25.9%, respectively. The proportion of frail patients increased during hospitalization, from 40.6% at admission to 59.2% at discharge (P<0.01). The cumulative incidence of all-cause mortality was 36.3% at 1 year and 44.1% at 2 years. After adjusting for confounders, advanced age, Killip Class 4, final Thrombolysis in Myocardial Infarction flow grade <3, and longer door-to-balloon time were associated with higher mortality, whereas higher left ventricular ejection fraction and cardiac rehabilitation were associated with lower mortality (all P<0.05). Progression of frailty during hospitalization was an independent risk factor for long-term mortality in hospital survivors (P<0.01). Conclusions: The management of patients with AMIHF aged ≥80 years who undergo PCI remains challenging, with high rates of in-hospital major bleeding, frailty progression, and mortality.
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Affiliation(s)
- Kensaku Nishihira
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Nehiro Kuriyama
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Kosuke Kadooka
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Yasuhiro Honda
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Keisuke Yamamoto
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Shun Nishino
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Suguru Ebihara
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Kenji Ogata
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Toshiyuki Kimura
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Hiroshi Koiwaya
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Yoshisato Shibata
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
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15
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Ejiri K, Ding N, Kim E, Honda Y, Cainzos-Achirica M, Tanaka H, Howard-Claudio C, Butler K, Hughes T, Coresh J, Van't Hof J, Meyer M, Blaha M, Matsushita K. Associations of segment-specific pulse wave velocity with vascular calcification: the Atherosclerosis Risk in Communities (ARIC) Study. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Pulse wave velocity (PWV) is a non-invasive measure of arterial stiffness and a predictor of cardiovascular disease (CVD). Vascular calcification, especially coronary artery calcium (CAC) measured by computed tomography (CT), is one of the strongest predictors of CVD but requires radiation for measurement. PWV may be helpful to identify persons with vascular calcification who may benefit from formal assessment of vascular calcification with CT. However, the associations between PWV and vascular calcification across different vascular beds have not been fully investigated.
Purpose
The aims of this study were to quantify the association between PWV and calcification at different segments and to explore whether PWV can identify individuals with vascular calcification beyond traditional risk factors.
Methods
Among 1486 ARIC Study participants (mean age 79.3 [SD 4.2] years), we measured PWV by OMRON VP1000plus at the following segments: heart-carotid (hcPWV), heart-femoral (hfPWV), carotid-femoral (cfPWV), heart-ankle (haPWV), brachial-ankle (baPWV) and femoral-ankle (faPWV). Participants were stratified into four groups based on quartiles of each PWV measure. Dependent (i.e., outcome) variables were high calcium score (≥75th percentile of Agatston score by CT) of the following vascular beds (including valves): coronary arteries, aortic valve ring, aortic valve, mitral valve, ascending aorta, and descending aorta. We ran multivariable logistic regression models and assessed c-statistics as a measure of prediction discrimination.
Results
Only cfPWV was significantly positively associated with high CAC (adjusted odds ratio [OR] for the highest vs. lowest quartile: 1.73 [95% CI: 1.17–2.55]) (green dot in figure). The associations were overall most evident for descending aorta calcification, with significantly positive results for hfPWV (gold dot in figure), cfPWV (green dot), haPWV (emerald dot), and baPWV (blue dot). For example, adjusted OR for the highest vs. lowest quartile of cfPWV was 4.08 (2.70–6.24). hfPWV and cfPWV were significantly associated with mitral valve calcification as well. In contrast, faPWV (purple dots) was inversely associated with calcification of aortic valve ring, ascending aorta, and descending aorta. For descending aorta calcification, even the second highest quartile of the following measures demonstrated significant adjusted OR: hfPWV (3.21 [2.11–4.95]), cfPWV (2.11 [1.40–3.20]), and baPWV (1.75 [1.14–2.69]). Simultaneously adding cfPWV and hfPWV improved c-statistic for CAC (Δc-statistic 0.011 [0.0007–0.022]) and descending aorta calcification (0.035 [0.017–0.053]).
Conclusions
The associations of PWV with vascular calcification varied substantially across segments, with descending aorta calcification most closely linked to PWV measures and cfPWV most robustly associated with calcification of multiple vascular beds. cfPWV and hfPWV, together, improved discrimination of high CAC beyond traditional risk factors.
Funding Acknowledgement
Type of funding sources: Public grant(s) – National budget only. Main funding source(s): The National Heart, Lung, and Blood Institute, National Institutes of Health
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Affiliation(s)
- K Ejiri
- Johns Hopkins Bloomberg School of Public Health, Epidemiology , Baltimore , United States of America
| | - N Ding
- Johns Hopkins Bloomberg School of Public Health, Epidemiology , Baltimore , United States of America
| | - E Kim
- Johns Hopkins Bloomberg School of Public Health, Epidemiology , Baltimore , United States of America
| | - Y Honda
- Johns Hopkins Bloomberg School of Public Health, Epidemiology , Baltimore , United States of America
| | - M Cainzos-Achirica
- The Methodist Hospital, Preventive Cardiology , Houston , United States of America
| | - H Tanaka
- University of Texas at Austin, Kinesiology and Health Education , Austin , United States of America
| | - C Howard-Claudio
- The University of Mississippi Medical Center, Radiology, Cardiac and Body Imaging , Jackson , United States of America
| | - K Butler
- The University of Mississippi Medical Center, Medicine , Jackson , United States of America
| | - T Hughes
- Wake Forest School of Medicine, Gerontology and Geriatric Medicine , Winston-Salem , United States of America
| | - J Coresh
- Johns Hopkins Bloomberg School of Public Health, Epidemiology , Baltimore , United States of America
| | - J Van't Hof
- University of Minnesota, Cardiovascular Medicine , Minneapolis , United States of America
| | - M Meyer
- University of North Carolina, Emergency Medicine , Chapel Hill , United States of America
| | - M Blaha
- Johns Hopkins University School of Medicine, Johns Hopkins Ciccarone Center for the Prevention of Cardiovascular Disease , Baltimore , United States of America
| | - K Matsushita
- Johns Hopkins Bloomberg School of Public Health, Epidemiology , Baltimore , United States of America
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16
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Khan MO, Nishi T, Imura S, Seo J, Wang H, Honda Y, Nieman K, Rogers IS, Tremmel JA, Boyd J, Schnittger I, Marsden A. Colocalization of Coronary Plaque with Wall Shear Stress in Myocardial Bridge Patients. Cardiovasc Eng Technol 2022; 13:797-807. [PMID: 35296987 DOI: 10.1007/s13239-022-00616-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 02/25/2022] [Indexed: 01/27/2023]
Abstract
PURPOSE Patients with myocardial bridges (MBs) have a higher prevalence of atherosclerosis. Wall shear stress (WSS) has previously been correlated with plaque in coronary artery disease patients, but such correlations have not been investigated in symptomatic MB patients. The aim of this paper was to use a multi-scale computational fluid dynamics (CFD) framework to simulate hemodynamics in MB patient, and investigate the co-localization of WSS and plaque. METHODS We identified N = 10 patients from a previously reported cohort of 50 symptomatic MB patients, all of whom had plaque in the proximal vessel. Dynamic 3D models were reconstructed from coronary computed tomography angiography (CCTA), intravascular ultrasound (IVUS) and catheter angiograms. CFD simulations were performed to compute WSS proximal to, within and distal to the MB. Plaque was quantified from IVUS images in 2 mm segments and registered to CFD model. Plaque area was compared to absolute and patient-normalized WSS. RESULTS WSS was lower in the proximal segment compared to the bridge segment (6.1 ± 2.9 vs. 16.0 ± 7.1 dynes/cm2, p value < 0.01). Plaque area and plaque burden measured from IVUS peaked at 1-3 cm proximal to the MB entrance, coinciding with the first diagonal branch. Normalized WSS showed a statistically significant moderate correlation with plaque area (r = 0.41, p < 0.01). CONCLUSION WSS may be obtained non-invasively in MB patients and provides a surrogate marker of plaque area. Using CFD, it may be possible to non-invasively assess the extent of plaque area, and identify patients who could benefit from frequent monitoring or medical management.
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Affiliation(s)
- Muhammad Owais Khan
- Department of Pediatrics, Stanford University School of Medicine, 318 Campus Drive, Clark Center E100b, Stanford, CA, 94305-5428, USA.,Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Takeshi Nishi
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Shinji Imura
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Jongmin Seo
- Department of Pediatrics, Stanford University School of Medicine, 318 Campus Drive, Clark Center E100b, Stanford, CA, 94305-5428, USA.,Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA
| | - Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Koen Nieman
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA.,Department of Radiology, Stanford University School of Medicine, Stanford, CA, USA
| | - Ian S Rogers
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Jennifer A Tremmel
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Jack Boyd
- Department of Cardiothoracic Surgery, Stanford University School of Medicine, Stanford, CA, USA
| | - Ingela Schnittger
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Alison Marsden
- Department of Pediatrics, Stanford University School of Medicine, 318 Campus Drive, Clark Center E100b, Stanford, CA, 94305-5428, USA. .,Institute for Computational and Mathematical Engineering, Stanford University, Stanford, CA, USA. .,Department of Bioengineering, Stanford University, Stanford, CA, USA.
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17
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Honda Y, Watanabe N, Nishino S, Shibata Y. Dynamic changes in the three-dimensional mitral complex geometry in a case of takotsubo cardiomyopathy with transient systolic anterior movement of the mitral valve. J Cardiol Cases 2022; 26:190-193. [DOI: 10.1016/j.jccase.2022.04.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Revised: 03/23/2022] [Accepted: 04/22/2022] [Indexed: 11/26/2022] Open
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18
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Arora S, Zimmermann F, Solberg O, Nytroen K, Aaberge L, Okada K, Ahn J, Honda Y, Khush K, Pijls N, Angeras O, Karason K, Gullestad L, Fearon W. Multicenter Evaluation of Volumetric Intravascular Ultrasound Early After Heart Transplantation and Long-Term Prognosis. J Heart Lung Transplant 2022. [DOI: 10.1016/j.healun.2022.01.783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022] Open
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19
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Ahn JM, Zimmermann FM, Arora S, Solberg OG, Angerås O, Rolid K, Rafique M, Aaberge L, Karason K, Okada K, Luikart H, Khush KK, Honda Y, Pijls NHJ, Lee SE, Kim JJ, Park SJ, Gullestad L, Fearon WF. Prognostic value of comprehensive intracoronary physiology assessment early after heart transplantation. Eur Heart J 2021; 42:4918-4929. [PMID: 34665224 PMCID: PMC8691805 DOI: 10.1093/eurheartj/ehab568] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 07/01/2021] [Accepted: 08/05/2021] [Indexed: 12/23/2022] Open
Abstract
AIMS We evaluated the long-term prognostic value of invasively assessing coronary physiology after heart transplantation in a large multicentre registry. METHODS AND RESULTS Comprehensive intracoronary physiology assessment measuring fractional flow reserve (FFR), the index of microcirculatory resistance (IMR), and coronary flow reserve (CFR) was performed in 254 patients at baseline (a median of 7.2 weeks) and in 240 patients at 1 year after transplantation (199 patients had both baseline and 1-year measurement). Patients were classified into those with normal physiology, reduced FFR (FFR ≤ 0.80), and microvascular dysfunction (either IMR ≥ 25 or CFR ≤ 2.0 with FFR > 0.80). The primary outcome was the composite of death or re-transplantation at 10 years. At baseline, 5.5% had reduced FFR; 36.6% had microvascular dysfunction. Baseline reduced FFR [adjusted hazard ratio (aHR) 2.33, 95% confidence interval (CI) 0.88-6.15; P = 0.088] and microvascular dysfunction (aHR 0.88, 95% CI 0.44-1.79; P = 0.73) were not predictors of death and re-transplantation at 10 years. At 1 year, 5.0% had reduced FFR; 23.8% had microvascular dysfunction. One-year reduced FFR (aHR 2.98, 95% CI 1.13-7.87; P = 0.028) and microvascular dysfunction (aHR 2.33, 95% CI 1.19-4.59; P = 0.015) were associated with significantly increased risk of death or re-transplantation at 10 years. Invasive measures of coronary physiology improved the prognostic performance of clinical variables (χ2 improvement: 7.41, P = 0.006). However, intravascular ultrasound-derived changes in maximal intimal thickness were not predictive of outcomes. CONCLUSION Abnormal coronary physiology 1 year after heart transplantation was common and was a significant predictor of death or re-transplantation at 10 years.
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Affiliation(s)
- Jung-Min Ahn
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 300 Pasteur Drive, Room H2103, Stanford, CA 94305-5218, USA
| | - Frederik M Zimmermann
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 300 Pasteur Drive, Room H2103, Stanford, CA 94305-5218, USA
- Catharina Hospital, Eindhoven, the Netherlands
| | - Satish Arora
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
- Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
| | - Ole-Geir Solberg
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Oskar Angerås
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Gothenburg, Sweden
| | - Katrine Rolid
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
- Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Muzammil Rafique
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Lars Aaberge
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Kristjan Karason
- Department of Cardiology, Sahlgrenska University Hospital, Gothenburg, Sweden
- Department of Molecular and Clinical Medicine, Institute of Medicine, Gothenburg University, Gothenburg, Sweden
| | - Kozo Okada
- Division of Cardiology, Yokohama City University Medical Center, Yokohama, Japan
| | - Helen Luikart
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 300 Pasteur Drive, Room H2103, Stanford, CA 94305-5218, USA
| | - Kiran K Khush
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 300 Pasteur Drive, Room H2103, Stanford, CA 94305-5218, USA
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 300 Pasteur Drive, Room H2103, Stanford, CA 94305-5218, USA
| | | | - Sang Eun Lee
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Jae-Joong Kim
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Seung-Jung Park
- Department of Cardiology, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Lars Gullestad
- Department of Cardiology, Oslo University Hospital Rikshospitalet, Oslo, Norway
- KG Jebsen Center for Cardiac Research, University of Oslo, Oslo, Norway
- Center for Heart Failure Research, Oslo University Hospital, Oslo, Norway
- Institute of Clinical Medicine, Faculty of Medicine, University of Oslo, Oslo, Norway
| | - William F Fearon
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford Cardiovascular Institute, 300 Pasteur Drive, Room H2103, Stanford, CA 94305-5218, USA
- Division of Cardiovascular Medicine, VA Palo Alto Health Care System, CA, USA
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20
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Honda Y. Intravascular Imaging to Guide PCI for Acute Myocardial Infarction: Shifting From "Whether" to "How". JACC Cardiovasc Interv 2021; 14:2444-2446. [PMID: 34756538 DOI: 10.1016/j.jcin.2021.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 09/13/2021] [Indexed: 10/20/2022]
Affiliation(s)
- Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, California, USA.
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21
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Hashikata T, Honda Y, Wang H, Pargaonkar VS, Nishi T, Hollak MB, Rogers IS, Nieman K, Yock PG, Fitzgerald PJ, Schnittger I, Boyd JH, Tremmel JA. Impact of Diastolic Vessel Restriction on Quality of Life in Symptomatic Myocardial Bridging Patients Treated With Surgical Unroofing: Preoperative Assessments With Intravascular Ultrasound and Coronary Computed Tomography Angiography. Circ Cardiovasc Interv 2021; 14:e011062. [PMID: 34665656 DOI: 10.1161/circinterventions.121.011062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
[Figure: see text].
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Affiliation(s)
- Takehiro Hashikata
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Hanjay Wang
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Vedant S Pargaonkar
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Takeshi Nishi
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.).,Department of Cardiology, Kawasaki Medical School, Kurashiki, Japan (T.N.)
| | - M Brooke Hollak
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Ian S Rogers
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Koen Nieman
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.).,Department of Radiology, Stanford University School of Medicine, CA (K.N.)
| | - Paul G Yock
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Peter J Fitzgerald
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Ingela Schnittger
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Jack H Boyd
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
| | - Jennifer A Tremmel
- Division of Cardiovascular Medicine, Stanford University School of Medicine, CA (T.H., Y.H., H.W., V.S.P., T.N., M.B.H., I.S.R., K.N., P.G.Y., P.J.F., I.S., J.H.B., J.A.T.)
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22
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Vicedo-Cabrera AM, Scovronick N, Sera F, Royé D, Schneider R, Tobias A, Astrom C, Guo Y, Honda Y, Hondula DM, Abrutzky R, Tong S, de Sousa Zanotti Stagliorio Coelho M, Saldiva PHN, Lavigne E, Correa PM, Ortega NV, Kan H, Osorio S, Kyselý J, Urban A, Orru H, Indermitte E, Jaakkola JJK, Ryti N, Pascal M, Schneider A, Katsouyanni K, Samoli E, Mayvaneh F, Entezari A, Goodman P, Zeka A, Michelozzi P, de’Donato F, Hashizume M, Alahmad B, Diaz MH, De La Cruz Valencia C, Overcenco A, Houthuijs D, Ameling C, Rao S, Ruscio FD, Carrasco-Escobar G, Seposo X, Silva S, Madureira J, Holobaca IH, Fratianni S, Acquaotta F, Kim H, Lee W, Iniguez C, Forsberg B, Ragettli MS, Guo YLL, Chen BY, Li S, Armstrong B, Aleman A, Zanobetti A, Schwartz J, Dang TN, Dung DV, Gillett N, Haines A, Mengel M, Huber V, Gasparrini A. The burden of heat-related mortality attributable to recent human-induced climate change. Nat Clim Chang 2021; 11:492-500. [PMID: 34221128 PMCID: PMC7611104 DOI: 10.1038/s41558-021-01058-x] [Citation(s) in RCA: 196] [Impact Index Per Article: 65.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 04/20/2021] [Indexed: 05/19/2023]
Abstract
Climate change affects human health; however, there have been no large-scale, systematic efforts to quantify the heat-related human health impacts that have already occurred due to climate change. Here, we use empirical data from 732 locations in 43 countries to estimate the mortality burdens associated with the additional heat exposure that has resulted from recent human-induced warming, during the period 1991-2018. Across all study countries, we find that 37.0% (range 20.5-76.3%) of warm-season heat-related deaths can be attributed to anthropogenic climate change and that increased mortality is evident on every continent. Burdens varied geographically but were of the order of dozens to hundreds of deaths per year in many locations. Our findings support the urgent need for more ambitious mitigation and adaptation strategies to minimize the public health impacts of climate change.
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Affiliation(s)
- A. M. Vicedo-Cabrera
- Institute of Social and Preventive Medicine, University of Bern, Bern, Switzerland
- Oeschger Center for Climate Change Research, University of Bern, Bern, Switzerland
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
| | - N. Scovronick
- Gangarosa Department of Environmental Health, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - F. Sera
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- Department of Statistics, Computer Science and Applications ‘G. Parenti’, University of Florence, Florence, Italy
| | - D. Royé
- Department of Geography, University of Santiago de Compostela, Santiago de Compostela, Spain
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
| | - R. Schneider
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- Φ-Lab, European Space Agency (ESA-ESRIN), Frascati, Italy
- The Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK
- European Centre for Medium-Range Weather Forecast (ECMWF), Reading, UK
| | - A. Tobias
- Institute of Environmental Assessment and Water Research, Spanish Council for Scientific Research, Barcelona, Spain
- School of Tropical Medicine and Global Health, Nagasaki University, Nagasaki, Japan
| | - C. Astrom
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - Y. Guo
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Y. Honda
- Faculty of Health and Sport Sciences, University of Tsukuba, Tsukuba, Japan
| | - D. M. Hondula
- School of Geographical Sciences and Urban Planning, Arizona State University, Tempe, AZ, USA
| | - R. Abrutzky
- Facultad de Ciencias Sociales, Instituto de Investigaciones Gino Germani, Universidad de Buenos Aires, Buenos Aires, Argentina
| | - S. Tong
- Shanghai Children’s Medical Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- School of Public Health, Institute of Environment and Population Health, Anhui Medical University, Hefei, China
- School of Public Health and Social Work, Queensland University of Technology, Brisbane, Queensland, Australia
- Center for Global Health, School of Public Health, Nanjing Medical University, Nanjing, China
| | | | | | - E. Lavigne
- Air Health Science Division, Health Canada, Ottawa, Ontario, Canada
- School of Epidemiology and Public Health, University of Ottawa, Ottawa, Ontario, Canada
| | - P. Matus Correa
- Department of Public Health, Universidad de los Andes, Santiago, Chile
| | - N. Valdes Ortega
- Department of Public Health, Universidad de los Andes, Santiago, Chile
| | - H. Kan
- School of Public Health, Fudan University, Shanghai, China
| | - S. Osorio
- Department of Environmental Health, University of São Paulo, São Paulo, Brazil
| | - J. Kyselý
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
- Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Czech Republic
| | - A. Urban
- Institute of Atmospheric Physics of the Czech Academy of Sciences, Prague, Czech Republic
- Faculty of Environmental Sciences, Czech University of Life Sciences, Prague, Czech Republic
| | - H. Orru
- Institute of Family Medicine and Public Health, University of Tartu, Tartu, Estonia
| | - E. Indermitte
- Institute of Family Medicine and Public Health, University of Tartu, Tartu, Estonia
| | - J. J. K. Jaakkola
- Center for Environmental and Respiratory Health Research (CERH), University of Oulu, Oulu, Finland
- Finnish Meteorological Institute, Helsinki, Finland
| | - N. Ryti
- Center for Environmental and Respiratory Health Research (CERH), University of Oulu, Oulu, Finland
| | - M. Pascal
- Santé Publique France, Department of Environmental Health, French National Public Health Agency, Saint Maurice, France
| | - A. Schneider
- Institute of Epidemiology, Helmholtz Zentrum München—German Research Center for Environmental Health (GmbH), Neuherberg, Germany
| | - K. Katsouyanni
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
- MRC-PHE Centre for Environment and Health, Environmental Research Group, School of Public Health, Imperial College London, London, UK
| | - E. Samoli
- Department of Hygiene, Epidemiology and Medical Statistics, School of Medicine, National and Kapodistrian University of Athens, Athens, Greece
| | - F. Mayvaneh
- Faculty of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevar, Iran
| | - A. Entezari
- Faculty of Geography and Environmental Sciences, Hakim Sabzevari University, Sabzevar, Iran
| | - P. Goodman
- School of Physics, Technological University Dublin, Dublin, Ireland
| | - A. Zeka
- Institute for Environment, Health and Societies, Brunel University London, London, UK
| | - P. Michelozzi
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - F. de’Donato
- Department of Epidemiology, Lazio Regional Health Service, Rome, Italy
| | - M. Hashizume
- Department of Global Health Policy, School of International Health, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan
| | - B. Alahmad
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - M. Hurtado Diaz
- Department of Environmental Health, National Institute of Public Health, Cuernavaca Morelos, Mexico
| | - C. De La Cruz Valencia
- Department of Environmental Health, National Institute of Public Health, Cuernavaca Morelos, Mexico
| | - A. Overcenco
- Laboratory of Management in Science and Public Health, National Agency for Public Health of the Ministry of Health, Chisinau, Republic of Moldova
| | - D. Houthuijs
- Centre for Sustainability and Environmental Health, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - C. Ameling
- Centre for Sustainability and Environmental Health, National Institute for Public Health and the Environment (RIVM), Bilthoven, the Netherlands
| | - S. Rao
- Norwegian Institute of Public Health, Oslo, Norway
| | - F. Di Ruscio
- Norwegian Institute of Public Health, Oslo, Norway
| | - G. Carrasco-Escobar
- Health Innovation Laboratory, Institute of Tropical Medicine ‘Alexander von Humboldt’, Universidad Peruana Cayetano Heredia, Lima, Peru
| | - X. Seposo
- Department of Environmental Engineering, Graduate School of Engineering, Kyoto University, Kyoto, Japan
| | - S. Silva
- Department of Epidemiology, Instituto Nacional de Saúde Dr Ricardo Jorge, Lisbon, Portugal
| | - J. Madureira
- Department of Enviromental Health, Instituto Nacional de Saúde Dr Ricardo Jorge, Porto, Portugal
- EPIUnit—Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal
| | - I. H. Holobaca
- Faculty of Geography, Babes-Bolay University, Cluj-Napoca, Romania
| | - S. Fratianni
- Department of Earth Sciences, University of Torino, Turin, Italy
| | - F. Acquaotta
- Department of Earth Sciences, University of Torino, Turin, Italy
| | - H. Kim
- Graduate School of Public Health & Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea
| | - W. Lee
- Graduate School of Public Health & Institute of Health and Environment, Seoul National University, Seoul, Republic of Korea
| | - C. Iniguez
- CIBER de Epidemiología y Salud Pública (CIBERESP), Madrid, Spain
- Department of Statistics and Computational Research, Universitat de Valencia, Valencia, Spain
| | - B. Forsberg
- Department of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden
| | - M. S. Ragettli
- Swiss Tropical and Public Health Institute, Basel, Switzerland
- University of Basel, Basel, Switzerland
| | - Y. L. L. Guo
- Environmental and Occupational Medicine, and Institute of Environmental and Occupational Health Sciences, National Taiwan University (NTU) and NTU Hospital, Taipei, Taiwan
- National Institute of Environmental Health Science, National Health Research Institutes, Zhunan,Taiwan
| | - B. Y. Chen
- National Institute of Environmental Health Science, National Health Research Institutes, Zhunan,Taiwan
| | - S. Li
- Department of Epidemiology and Preventive Medicine, School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - B. Armstrong
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- The Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK
| | - A. Aleman
- Department of Preventive Medicine, School of Medicine, University of the Republic, Montevideo, Uruguay
| | - A. Zanobetti
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - J. Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Harvard University, Boston, MA, USA
| | - T. N. Dang
- Department of Environmental Health, Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - D. V. Dung
- Department of Environmental Health, Faculty of Public Health, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
| | - N. Gillett
- Canadian Centre for Climate Modelling and Analysis, Environment and Climate Change Canada, Victoria, British Colombia, Canada
| | - A. Haines
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- Φ-Lab, European Space Agency (ESA-ESRIN), Frascati, Italy
| | - M. Mengel
- Potsdam Institute for Climate Impact Research, Potsdam, Germany
| | - V. Huber
- Potsdam Institute for Climate Impact Research, Potsdam, Germany
- Department of Physical, Chemical and Natural Systems, Universidad Pablo de Olavide, Seville, Spain
| | - A. Gasparrini
- Department of Public Health, Environments and Society, London School of Hygiene & Tropical Medicine, London, UK
- The Centre on Climate Change and Planetary Health, London School of Hygiene & Tropical Medicine, London, UK
- Centre for Statistical Methodology, London School of Hygiene & Tropical Medicine, London, UK
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23
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Nishi T, Okada K, Kitahara H, Kameda R, Ikutomi M, Imura S, Hollak MB, Yock PG, Popma JJ, Kusano H, Cheong WF, Sudhir K, Fitzgerald PJ, Ellis SG, Kereiakes DJ, Stone GW, Honda Y, Kimura T. Intravascular ultrasound predictors of long-term outcomes following ABSORB bioresorbable scaffold implantation: A pooled analysis of the ABSORB III and ABSORB Japan trials. J Cardiol 2021; 78:224-229. [PMID: 33893022 DOI: 10.1016/j.jjcc.2021.03.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/11/2021] [Accepted: 02/23/2021] [Indexed: 11/28/2022]
Abstract
BACKGROUND The long-term prognostic impact of IVUS findings following Absorb BVS implantation remains uncertain. This study aimed to identify the IVUS predictors of long-term clinical outcomes following ABSORB bioresorbable vascular scaffold (BVS) implantation from the pooled IVUS substudy cohorts of the ABSORB III and Japan trials. METHODS A total of 298 lesions in 286 patients were enrolled with 2:1 randomization to ABSORB BVS vs. cobalt-chromium everolimus-eluting stents. This sub-analysis included 168 lesions of 160 patients in the Absorb arm whose post-procedural quantitative IVUS were available. The primary endpoint of this analysis was device-oriented composite endpoint (DOCE) of target lesion failure, including cardiac death, target vessel-related myocardial infarction, or ischemia-driven target lesion revascularization. The median follow-up duration was 4.9 [3.1-5.0] years. RESULTS During follow-up, DOCE occurred in 10.1% of lesions treated with Absorb BVS. Among several post-procedural IVUS indices associated with DOCE, non-uniform device expansion (defined as uniformity index = minimum / maximum device area) (hazard ratio 0.47 per 0.1 increase [95%CI 0.28 to 0.77]; p = 0.003) and residual reference plaque burden (hazard ratio 4.01 per 10% increase [95%CI 1.50 to 10.77]; p = 0.006) were identified as independent predictors of DOCE by Cox multivariable analysis. CONCLUSIONS Nonuniform device expansion and substantial untreated residual plaque in reference segments were associated with long-term adverse events following BVS implantation. Baseline imaging to identify the appropriate device landing zone and procedural imaging to achieve uniform device expansion if possible (e.g. through post-dilatation) may improve clinical outcomes of BVS implantation. CLINICAL TRIAL REGISTRATION URL: http://www.clinicaltrials.gov. Unique identifier: NCT01751906 (ABSORB III); NCT01844284 (ABSORB Japan).
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Affiliation(s)
- Takeshi Nishi
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - Kozo Okada
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - Hideki Kitahara
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - Ryo Kameda
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - Masayasu Ikutomi
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - Shinji Imura
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - M Brooke Hollak
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - Paul G Yock
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - Jeffrey J Popma
- Beth Israel Deaconess Medical Center, Boston, MA, United States
| | - Hajime Kusano
- Clinical Science and Medical Affairs, Abbott Vascular, Santa Clara, CA, United States
| | - Wai-Fung Cheong
- Clinical Science and Medical Affairs, Abbott Vascular, Santa Clara, CA, United States
| | - Krishnankutty Sudhir
- Clinical Science and Medical Affairs, Abbott Vascular, Santa Clara, CA, United States
| | - Peter J Fitzgerald
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States
| | - Stephen G Ellis
- Department of Cardiovascular Medicine, Heart and Vascular Institute, Cleveland Clinic, Cleveland, OH, United States
| | - Dean J Kereiakes
- The Christ Hospital Heart and Vascular Center/The Lindner Research Center, Cincinnati, OH, United States
| | - Gregg W Stone
- Cardiovascular Research Foundation, New York, NY, United States; Zena and Michael A. Wiener Cardiovascular Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, United States.
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Hospital, Kyoto, Japan
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24
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Nishi T, Yamashita R, Imura S, Tateishi K, Kitahara H, Kobayashi Y, Yock PG, Fitzgerald PJ, Honda Y. Deep learning-based intravascular ultrasound segmentation for the assessment of coronary artery disease. Int J Cardiol 2021; 333:55-59. [PMID: 33741429 DOI: 10.1016/j.ijcard.2021.03.020] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Revised: 01/31/2021] [Accepted: 03/10/2021] [Indexed: 11/20/2022]
Abstract
BACKGROUND Accurate segmentation of the coronary arteries with intravascular ultrasound (IVUS) is important to optimize coronary stent implantation. Recently, deep learning (DL) methods have been proposed to develop automatic IVUS segmentation. However, most of those have been limited to segmenting the lumen and vessel (i.e. lumen-intima and media-adventitia borders), not applied to segmenting stent dimension. Hence, this study aimed to develop a DL method for automatic IVUS segmentation of stent area in addition to lumen and vessel area. METHODS This study included a total of 45,449 images from 1576 IVUS pullback runs. The datasets were randomly split into training, validation, and test datasets (0.7:0.15:0.15). After developing the DL-based system to segment IVUS images using the training and validation datasets, we evaluated the performance through the independent test dataset. RESULTS The DL-based segmentation correlated well with the expert-analyzed segmentation with a mean intersection over union (± standard deviation) of 0.80 ± 0.20, correlation coefficient of 0.98 (95% confidence intervals: 0.98 to 0.98), 0.96 (0.95 to 0.96), and 0.96 (0.96 to 0.96) for lumen, vessel, and stent area, and the mean difference (± standard deviation) of 0.02 ± 0.57, -0.44 ± 1.56 and - 0.17 ± 0.74 mm2 for lumen, vessel and stent area, respectively. CONCLUSION This automated DL-based IVUS segmentation of lumen, vessel and stent area showed an excellent agreement with manual segmentation by experts, supporting the feasibility of artificial intelligence-assisted IVUS assessment in patients undergoing coronary stent implantation.
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Affiliation(s)
- Takeshi Nishi
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA; Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Chiba, Japan.
| | - Rikiya Yamashita
- Department of Biomedical Data Science, Stanford University School of Medicine, CA, USA
| | - Shinji Imura
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Kazuya Tateishi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Chiba, Japan
| | - Hideki Kitahara
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Chiba, Japan
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Chiba, Japan
| | - Paul G Yock
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Peter J Fitzgerald
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford University School of Medicine and Stanford Cardiovascular Institute, Stanford, CA, USA.
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25
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Honda Y, Watanabe N, Nishino S, Matsuura H, Nishimura M, Yano M, Kataoka H, Shibata Y. Non-rheumatic giant left atrium: An illustrative case successfully treated by surgical intervention. J Cardiol Cases 2021; 24:79-83. [PMID: 34354783 DOI: 10.1016/j.jccase.2021.01.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 12/23/2020] [Accepted: 01/19/2021] [Indexed: 11/18/2022] Open
Abstract
A 45-year-old male presented to us with decompensated heart failure. He had been diagnosed as having atrial fibrillation when he was 31 years old. Transthoracic and transesophageal echocardiography revealed an excessive left atrial (LA) enlargement with left ventricular dysfunction and severe functional mitral regurgitation. There were no specific findings of rheumatic valve disease. He underwent surgical mitral valve replacement and LA volume reduction surgery after optimal medical therapy. Surgically-removed specimens of the LA and the anterior mitral leaflet were examined and there were no specific histopathological findings suggesting the specific etiology of the giant LA in this patient. The patient's condition significantly improved after the surgery without any cardiac events ever since. <Learning objective: Non-rheumatic giant left atrium (LA) is rare but can cause decompensated heart failure with various types of complications and hemodynamic problems. Mitral annular dilation and changes in the valve morphology often cause functional mitral regurgitation in giant LA, which adversely affect the hemodynamic condition. Valve surgery and surgical reduction of LA was effective in the present case.>.
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Affiliation(s)
- Yasuhiro Honda
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center, 1173 Arita, Miyazaki 880-2102,Japan
| | - Nozomi Watanabe
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center, 1173 Arita, Miyazaki 880-2102,Japan
| | - Shun Nishino
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center, 1173 Arita, Miyazaki 880-2102,Japan
| | - Hirohide Matsuura
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center, 1173 Arita, Miyazaki 880-2102,Japan
| | - Masanori Nishimura
- Department of Cardiovascular Surgery, Miyazaki Medical Association Hospital Cardiovascular Center, Miyazaki, Japan
| | - Mitsuhiro Yano
- Department of Cardiovascular Surgery, Miyazaki Medical Association Hospital Cardiovascular Center, Miyazaki, Japan
| | - Hiroaki Kataoka
- Section of Oncopathology and Regenerative Biology, Faculty of Medicine, University of Miyazaki, Miyazaki, Japan
| | - Yoshisato Shibata
- Department of Cardiology, Miyazaki Medical Association Hospital Cardiovascular Center, 1173 Arita, Miyazaki 880-2102,Japan
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26
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Pargaonkar V, Kimura T, Kameda R, Tanaka S, Yamada R, Schwartz J, Perl L, Rogers I, Honda Y, Fitzgerald P, Schnittger I, Tremmel J. Invasive assessment of myocardial bridging in patients with angina and no obstructive coronary artery disease. EUROINTERVENTION 2021; 16:1070-1078. [PMID: 33074153 PMCID: PMC9725037 DOI: 10.4244/eij-d-20-00779] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS Angina and no obstructive coronary artery disease (ANOCA) is common. A potential cause of angina in this patient population is a myocardial bridge (MB). We aimed to study the anatomical and haemodynamic characteristics of an MB in patients with ANOCA. METHODS AND RESULTS Using intravascular ultrasound (IVUS), we identified 184 MBs in 154 patients. We evaluated MB length, arterial compression, and halo thickness. MB muscle index (MMI) was defined as MB length×halo thickness. Haemodynamic testing of the MB was performed using an intracoronary pressure/Doppler flow wire at rest and during dobutamine stress. We defined an abnormal diastolic fractional flow reserve (dFFR) as ≤0.76 during stress. The median MB length was 22.9 mm, arterial compression 30.9%, and halo thickness 0.5 mm. The median MMI was 12.1. Endothelial and microvascular dysfunction were present in 85.4% and 22.1%, respectively. At peak dobutamine stress, 94.2% of patients had a dFFR ≤0.76 within and/or distal to the MB. MMI was associated with an abnormal dFFR. CONCLUSIONS In select patients with ANOCA who have an MB by IVUS, the majority have evidence of a haemodynamically significant dFFR during dobutamine stress, suggesting the MB as being a cause of their angina. A comprehensive invasive assessment of such patients during coronary angiography provides important diagnostic information that can guide management.
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Affiliation(s)
- Vedant Pargaonkar
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Takumi Kimura
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Ryo Kameda
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Shigemitsu Tanaka
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Ryotaro Yamada
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Jonathan Schwartz
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Leor Perl
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Ian Rogers
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Peter Fitzgerald
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Ingela Schnittger
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, Stanford, CA, USA
| | - Jennifer Tremmel
- 300 Pasteur Drive, Room H2103, Stanford, CA 94305-5218, USA. E-mail:
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Wongputtisin P, Supo C, Suwannarach N, Honda Y, Nakazawa T, Kumla J, Lumyong S, Khanongnuch C. Filamentous fungi with high paraquat-degrading activity isolated from contaminated agricultural soils in northern Thailand. Lett Appl Microbiol 2020; 72:467-475. [PMID: 33305426 DOI: 10.1111/lam.13439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Revised: 12/02/2020] [Accepted: 12/07/2020] [Indexed: 11/29/2022]
Abstract
The contamination of paraquat (1,1'-dimethyl-4,4'-bipyridylium dichloride) herbicide from the farming area has become a public concern in many countries. This herbicide harms to human health and negatively effects the soil fertility. Several methods have been introduced for the remediation of paraquat. In this study, 20 isolates of the paraquat-tolerant fungi were isolated from the contaminated soil samples in northern Thailand. We found that isolate PRPY-2 and PFCM-1 exhibited the highest degradation activity of paraquat on synthetic liquid medium. About 80 and 68% of paraquat were removed by PRPY-2 and PFCM-1 respectively after 15 days of cultivation. Based on the morphological characteristic and molecular analysis, the fungal isolate PRPY-2 and PFCM-1 were identified as Aspergillus tamarii and Cunninghamella sp. respectively. The biosorption of paraquat on these fungal mycelia was also investigated. It was found that only 8-10% of paraquat could be detected on their mycelia, while 24-46% of paraquat was degraded by fungal mycelia. This is the first report on paraquat degrading ability by A. tamarii and Cunninghamella sp. It is demonstrated that these filamentous fungi are promising microorganisms available for remediation of paraquat contaminated environment.
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Affiliation(s)
- P Wongputtisin
- Program in Biotechnology, Faculty of Science, Maejo University, Chiang Mai, Thailand
| | - C Supo
- Program in Biotechnology, Faculty of Science, Maejo University, Chiang Mai, Thailand
| | - N Suwannarach
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - Y Honda
- Division of Environmental Science and Technology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - T Nakazawa
- Division of Environmental Science and Technology, Graduate School of Agriculture, Kyoto University, Kyoto, Japan
| | - J Kumla
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - S Lumyong
- Department of Biology, Faculty of Science, Chiang Mai University, Chiang Mai, Thailand
| | - C Khanongnuch
- Division of Biotechnology, Faculty of Agro-Industry, Chiang Mai University, Chiang Mai, Thailand
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Kumar A, Gogas BD, Thompson EW, Burnett GM, Molony D, Hosseini H, Chandran K, Lefieux A, Honda Y, Lee JM, Serruys PW, Kereiakes DJ, Stone GW, Samady H. Bioresorbable vascular scaffolds versus everolimus-eluting stents: a biomechanical analysis of the ABSORB III Imaging substudy. EUROINTERVENTION 2020; 16:e989-e996. [PMID: 32091401 DOI: 10.4244/eij-d-19-01128] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
AIMS The Absorb bioresorbable vascular scaffold (BVS) has high rates of target lesion failure (TLF) at three years. Low wall shear stress (WSS) promotes several mechanisms related to device TLF. We investigated the impact of BVS compared to XIENCE V (XV) on coronary WSS after device deployment. METHODS AND RESULTS In the prospective, randomised, controlled ABSORB III Imaging study (BVS [n=77] or XV [n=36]), computational fluid dynamics were performed on fused angiographic and intravascular ultrasound (IVUS) images of post-implanted vessels. Low WSS was defined as <1 Pa. There were no differences in demographics, clinical risks, angiographic reference vessel diameter or IVUS minimal lumen diameter between BVS and XV patients. A greater proportion of vessels treated with BVS compared to XV demonstrated low WSS across the whole device (BVS: 17/77 [22%] vs XV: 2/36 [6%], p<0.029). Compared to XV, BVS demonstrated lower median circumferential WSS (1.73 vs 2.21 Pa; p=0.036), outer curvature WSS (p=0.026), and inner curvature WSS (p=0.038). Similarly, BVS had lower proximal third WSS (p=0.024), middle third WSS (p=0.047) and distal third WSS (p=0.028) when compared to XV. In a univariable logistic regression analysis, patients who received BVS were 4.8 times more likely to demonstrate low WSS across the scaffold/stent when compared to XV patients. Importantly, in a multivariable linear regression model, hypertension (beta: 0.186, p=0.023), lower contrast frame count velocity (beta: -0.411, p<0.001), lower post-stent residual plaque burden (beta: -0.338, p<0.001), lower % underexpanded frames (beta: -0.170, p=0.033) and BVS deployment (beta: 0.251, p=0.002) remained independently associated with a greater percentage of stented coronary vessel areas exposed to low WSS. CONCLUSIONS In this randomised controlled study, the Absorb BVS was 4.8 times more likely than the XV metallic stent to demonstrate low WSS. BVS implantation, lower blood velocity and lower residual post-stent plaque burden were independently associated with greater area of low WSS.
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Affiliation(s)
- Arnav Kumar
- Andreas Gruentzig Cardiovascular Center, Emory University School of Medicine, Atlanta, GA, USA
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Wang H, Pargaonkar VS, Hironaka CE, Bajaj SS, Abbot CJ, O'Donnell CT, Miller SL, Honda Y, Rogers IS, Tremmel JA, Fischbein MP, Mitchell RS, Schnittger I, Boyd JH. Off-Pump Minithoracotomy Versus Sternotomy for Left Anterior Descending Myocardial Bridge Unroofing. Ann Thorac Surg 2020; 112:1474-1482. [PMID: 33333083 DOI: 10.1016/j.athoracsur.2020.11.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 10/01/2020] [Accepted: 11/30/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Myocardial bridge (MB) of the left anterior descending (LAD) coronary artery occurs in approximately 25% of the population. When medical therapy fails in patients with a symptomatic, hemodynamically significant MB, MB unroofing represents the optimal surgical management. Here, we evaluated minimally invasive MB unroofing in selected patients compared with sternotomy. METHODS MB unroofing was performed in 141 adult patients by sternotomy on-pump (ST-on, n = 40), sternotomy off-pump (ST-off, n = 62), or minithoracotomy off-pump (MT, n = 39). Angina symptoms were assessed preoperatively and 6 months postoperatively using the Seattle Angina Questionnaire. Matching included all MT patients and 31 ST-off patients with similar MB characteristics, no previous cardiac operations or coronary interventions, and no concomitant procedures. RESULTS MT patients tended to have a shorter MB length than ST-on and ST-off patients (2.57 vs 2.93 vs 3.09 cm, P = .166). ST-on patients had a longer hospital stay than ST-off and MT patients (5.0 vs 4.0 vs 3.0 days, P < .001), and more blood transfusions (15.2% vs 0.0% vs 2.6%, P = .002). After matching, MT patients had a shorter hospital stay than ST-off patients (3.0 vs 4.0 days, P = .005). No deaths or major complications occurred in any group. In all groups, MB unroofing yielded significant symptomatic improvement regarding physical limitation, angina stability, angina frequency, treatment satisfaction, and quality of life. CONCLUSIONS We report our single-center experience of off-pump minimally invasive MB unroofing, which may be safely performed in carefully selected patients, yielding dramatic improvements in angina symptoms at 6 months after the operation.
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Affiliation(s)
- Hanjay Wang
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Vedant S Pargaonkar
- Department of Cardiovascular Medicine, Stanford University, Stanford, California
| | - Camille E Hironaka
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Simar S Bajaj
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Chad J Abbot
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | | | - Shari L Miller
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Yasuhiro Honda
- Department of Cardiovascular Medicine, Stanford University, Stanford, California
| | - Ian S Rogers
- Department of Cardiovascular Medicine, Stanford University, Stanford, California
| | - Jennifer A Tremmel
- Department of Cardiovascular Medicine, Stanford University, Stanford, California
| | - Michael P Fischbein
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - R Scott Mitchell
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California
| | - Ingela Schnittger
- Department of Cardiovascular Medicine, Stanford University, Stanford, California
| | - Jack H Boyd
- Department of Cardiothoracic Surgery, Stanford University, Stanford, California.
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Terashima M, Kaneda H, Honda Y, Shimura T, Kodama A, Habara M, Suzuki T. Current status of hybrid intravascular ultrasound and optical coherence tomography catheter for coronary imaging and percutaneous coronary intervention. J Cardiol 2020; 77:435-443. [PMID: 33158714 DOI: 10.1016/j.jjcc.2020.08.012] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2020] [Accepted: 08/18/2020] [Indexed: 12/25/2022]
Abstract
Both intravascular ultrasound (IVUS) and optical coherence tomography (OCT) play a crucial role in elucidating the pathophysiology of coronary artery disease (CAD) with the goal to improve patient outcomes of medical and/or interventional CAD management. However, no single intravascular imaging technique has been proven to provide complete and detailed evaluation of all CAD lesions due to some limitations. Although sequential use of multiple modalities may sometimes be performed, there may be issues related to risk, time, and cost. To overcome these problems, several hybrids involving dual-probe combined IVUS-OCT catheters have been developed. The aim of this review article is to demonstrate some limitations of stand-alone imaging devices for evaluation of CAD, summarize the advances in hybrid IVUS-OCT imaging devices, discuss the technical challenges, and present the potential value in the clinical setting, especially in patients receiving medical or interventional CAD management.
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Affiliation(s)
| | - Hideaki Kaneda
- Okinaka Memorial Institute for Medical Research, Tokyo, Japan
| | - Yasuhiro Honda
- Center for Research in Cardiovascular Interventions, Stanford University Medical Center, Stanford, CA, USA
| | - Tetsuro Shimura
- Department of Cardiology, Toyohashi Heart Center, Toyohashi, Japan
| | - Atsuko Kodama
- Department of Cardiology, Toyohashi Heart Center, Toyohashi, Japan
| | - Maoto Habara
- Department of Cardiology, Toyohashi Heart Center, Toyohashi, Japan
| | - Takahiko Suzuki
- Department of Cardiology, Toyohashi Heart Center, Toyohashi, Japan
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31
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Mori S, Ito Y, Kishida T, Fukagawa T, Nakano T, Makino K, Mizusawa M, Shirai S, Honda Y, Tsutsumi M, Sakamoto Y, Kobayashi N, Araki M, Yamawaki M, Hirano K. Occurrence and clinical course of peri-stent contrast staining: comparison between second-generation drug-eluting stents and third generation drug-eluting stents. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Peri-stent contrast staining (PSS) has been reported to be associated with very late stent thrombosis.
The aims of this study was to compare the occurrence rate of PSS between second generation drug-eluting stents (2nd DES) and third generation drug-eluting stents (3rd DES), and to identify clinical characteristics associated with PSS.
Methods and results
This study comprised 1899 patients with 2493 de novo lesions treated with 2nd or 3rd DES from October 2015 to September 2018. Follow-up angiography was available for 1883 lesions (75.5%). There were 725 patients with 968 lesions treated with 2nd DES, and 716 patients with 915 lesions treated with 3rd DES. The occurrence of PSS, types of PSS, and VLST related to PSS were compared between 2nd and 3rd DES implantation. Mean follow-up period was 30±12 months. The occurrence rate of PSS and segmental type of PSS were similar between two groups (2nd DES vs. 3rd DES, 1.5% vs. 1.7%, p=0.73, 47% vs. 50%, p=0.85, and respectively). The VLST related to PSS occurred in only one case in 3rd DES group. (0% vs. 6.3%, p=0.33).
Conclusion
The occurrence rate of PSS and clinical course were similar between 2nd and 3rd DES.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- S Mori
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - Y Ito
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - T Kishida
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - T Fukagawa
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - T Nakano
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - K Makino
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - M Mizusawa
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - S Shirai
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - Y Honda
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - M Tsutsumi
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - Y Sakamoto
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - N Kobayashi
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - M Araki
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - M Yamawaki
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
| | - K Hirano
- Saiseikai Yokohama City Eastern Hospital, Cardiology, Yokohama, Japan
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Kashiyama K, Okada K, Matsushita K, Hibi K, Hollak MB, Yock P, Yeung AC, Fitzgerald PJ, Honda Y. TCT CONNECT-284 Intravascular Ultrasound Radiofrequency Signal Analysis for Simultaneous Assessment of Functional Significance and Structural Abnormality of Intermediate Coronary Artery Lesions. J Am Coll Cardiol 2020. [DOI: 10.1016/j.jacc.2020.09.301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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33
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Nishi T, Kameda R, Okada K, Ikutomi M, Hollak MB, Yock P, Popma J, Seneviratne S, Walters D, Whitbourn R, Stewart J, El-Jack S, Allocco D, Meredith I, Fitzgerald PJ, Honda Y. TCT CONNECT-269 A First-in-Human Study of the Second-Generation, Thin-Strut, Everolimus-Eluting Bioresorbable Scaffold: Final IVUS and OCT Results From the FAST Clinical Trial. J Am Coll Cardiol 2020. [DOI: 10.1016/j.jacc.2020.09.286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Okada K, Honda Y, Kitahara H, Ikutomi M, Kameda R, Brooke Hollak M, Yock PG, Popma JJ, Kusano H, Cheong WF, Sudhir K, Fitzgerald PJ, Kimura T. Scaffold underexpansion and late lumen loss after bioresorbable scaffold implantation: Insights from ABSORB JAPAN trial. Int J Cardiol Heart Vasc 2020; 31:100623. [PMID: 32944608 PMCID: PMC7481138 DOI: 10.1016/j.ijcha.2020.100623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2020] [Revised: 06/26/2020] [Accepted: 08/09/2020] [Indexed: 11/30/2022]
Abstract
Background Device underexpansion is associated with late adverse outcomes after bioresorbable vascular scaffold (BVS) implantation. This study, representing official IVUS results of the ABSORB Japan trial, aimed to characterize IVUS findings, focusing specifically on acute device expansion, and to investigate its impact on late lumen loss (LLL) with Absorb-BVS compared with cobalt-chromium everolimus-eluting stents (CoCr-EES). Methods ABSORB Japan enrolled 148 patients (2:1 randomization) in the IVUS cohort. Serial IVUS was prescheduled at post-procedure and 3 years. Acute device expansion was evaluated with respect to the degree and uniformity of the implanted device. Results Overall, Absorb-BVS showed smaller and more nonuniform device expansion at post-procedure, compared with CoCr-EES, which was particularly prominent in small-vessel lesions. In serial analysis, Absorb-BVS showed unique associations of smaller device expansion (r = 0.40, p = 0.001) and more nonuniformity (r = 0.29, p = 0.007) at post-procedure with greater LLL at 3 years, primarily attributable to greater negative remodeling (r = 0.39, p = 0.006). In contrast, acute device expansion showed no relation with subsequent lumen change in CoCr-EES. In Absorb-BVS, ischemic-driven target lesion or vessel revascularization (ID-TLR or ID-TVR) at 3 years occurred more frequently in small- versus large-vessel lesions (12.5% vs. 0%, p = 0.04 for ID-TLR and 15.6% vs. 2.3%, p = 0.08 for ID-TVR). Conversely, Absorb BVS had no target lesion nor vessel failure, even in small-vessel lesions, when adequate device expansion was achieved at post-procedure. Conclusions Unlike CoCr-EES, underexpansion was associated with greater negative remodeling and LLL in Absorb-BVS. This may in part account for the poorer outcomes of Absorb-BVS than CoCr-EES when under-expanded.
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Key Words
- Absorb BVS
- BVS, bioresorbable vascular scaffolds
- CV, coefficient of variation
- CoCr-EES, cobalt-chromium everolimus-eluting stents
- DS, diameter stenosis
- ID-TLR, ischemic-driven target lesion revascularization
- ID-TVR, ischemic-driven target vessel revascularization
- ISA, incomplete strut apposition
- IVUS, intravascular ultrasound
- LISA, late-acquired incomplete strut apposition
- LLL, late lumen loss
- Late acquired ISA
- Late lumen loss
- MI, myocardial infarction
- MLD, minimum lumen diameter
- QCA, quantitative coronary angiography
- RLD, reference lumen diameter
- RVD, reference vessel diameter
- ST, stent thrombosis
- ScT, scaffold thrombosis
- Scaffold underexpansion
- TLF, target lesion failure
- TVF, target vessel failure
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Affiliation(s)
- Kozo Okada
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, United States
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, United States
- Corresponding author at: Division of Cardiovascular Medicine, Stanford University School of Medicine, 300 Pasteur Drive, Room H3554, Stanford, CA 94305-5637, United States.
| | - Hideki Kitahara
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, United States
| | - Masayasu Ikutomi
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, United States
| | - Ryo Kameda
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, United States
| | - M. Brooke Hollak
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, United States
| | - Paul G. Yock
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, United States
| | | | - Hajime Kusano
- Clinical Science and Medical Affairs, Abbott Vascular, Santa Clara, CA, United States
| | - Wai-Fung Cheong
- Clinical Science and Medical Affairs, Abbott Vascular, Santa Clara, CA, United States
| | - Krishnankutty Sudhir
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, United States
- Clinical Science and Medical Affairs, Abbott Vascular, Santa Clara, CA, United States
| | - Peter J. Fitzgerald
- Division of Cardiovascular Medicine, Stanford Cardiovascular Institute, Stanford University School of Medicine, CA, United States
| | - Takeshi Kimura
- Department of Cardiovascular Medicine, Kyoto University Graduate School of Medicine, Kyoto, Japan
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Okada K, Hibi K, Honda Y, Fitzgerald PJ, Tamura K, Kimura K. Association between abdominal fat distribution and coronary plaque instability in patients with acute coronary syndrome. Nutr Metab Cardiovasc Dis 2020; 30:1169-1178. [PMID: 32448720 DOI: 10.1016/j.numecd.2020.03.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Revised: 01/06/2020] [Accepted: 03/20/2020] [Indexed: 01/23/2023]
Abstract
BACKGROUND AND AIMS This study aimed to assess possible association of detailed abdominal fat profiles with coronary plaque characteristics in patients with acute coronary syndrome (ACS). METHODS AND RESULTS In 60 patients with ACS, culprit arteries were evaluated at 1-mm intervals (length analyzed: 66 ± 28 mm) by grayscale and integrated backscatter intravascular ultrasound (IB-IVUS) before percutaneous coronary intervention. Standard IVUS indexes (as a volume index: volume/length), plaque components (as percent tissue volume) and fibrous cap thickness (FCT) were assessed by IB-IVUS. Plain abdominal computed tomography was performed to evaluate subcutaneous adipose tissue (SAT) area, visceral adipose tissue (VAT) area, and VAT/SAT ratio. While SAT area only correlated with vessel volume (r = 0.27, p = 0.04), VAT area correlated positively with vessel (r = 0.30, p = 0.02) and plaque (r = 0.33, p = 0.01) volumes and negatively with FCT (r = -0.26, p = 0.049), but not with percent plaque volume and plaque tissue components. In contrast, higher VAT/SAT ratio significantly correlated with higher percent lipid (r = 0.34, p = 0.008) and lower percent fibrous (r = -0.34, p = 0.007) volumes with a trend toward larger percent plaque volume (r = 0.19, p = 0.15), as well as thinner FCT (r = -0.53, p < 0.0001). In the multiple regression analysis, higher VAT/SAT ratio was independently associated with higher percent lipid with lower percent fibrous volumes (p = 0.03 for both) and thinner fibrous cap thickness (p = 0.0001). CONCLUSION Coronary plaque vulnerability, defined as increased lipid content with thinner fibrous cap thickness, appears to be more related to abnormal abdominal fat distribution, or so-called hidden obesity, compared with visceral or subcutaneous fat amount alone in patients with ACS.
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Affiliation(s)
- Kozo Okada
- Division of Cardiology, Yokohama City University Medical Center, Yokohama, Japan
| | - Kiyoshi Hibi
- Division of Cardiology, Yokohama City University Medical Center, Yokohama, Japan.
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Yokohama, Japan
| | - Peter J Fitzgerald
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Yokohama, Japan
| | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine, Yokohama City University, Graduate School of Medicine, Yokohama, Japan
| | - Kazuo Kimura
- Division of Cardiology, Yokohama City University Medical Center, Yokohama, Japan
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36
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Tomida N, Muramatsu N, Niiyama M, Ahn JK, Chang WC, Chen JY, Chu ML, Daté S, Gogami T, Goto H, Hamano H, Hashimoto T, He QH, Hicks K, Hiraiwa T, Honda Y, Hotta T, Ikuno H, Inoue Y, Ishikawa T, Jaegle I, Jo JM, Kasamatsu Y, Katsuragawa H, Kido S, Kon Y, Maruyama T, Masumoto S, Matsumura Y, Miyabe M, Mizutani K, Nagahiro H, Nakamura T, Nakano T, Nam T, Ngan TNT, Nozawa Y, Ohashi Y, Ohnishi H, Ohta T, Ozawa K, Rangacharyulu C, Ryu SY, Sada Y, Sasagawa M, Shibukawa T, Shimizu H, Shirai R, Shiraishi K, Strokovsky EA, Sugaya Y, Sumihama M, Suzuki S, Tanaka S, Tokiyasu A, Tsuchikawa Y, Ueda T, Yamazaki H, Yamazaki R, Yanai Y, Yorita T, Yoshida C, Yosoi M. Search for η^{'} Bound Nuclei in the ^{12}C(γ,p) Reaction with Simultaneous Detection of Decay Products. Phys Rev Lett 2020; 124:202501. [PMID: 32501086 DOI: 10.1103/physrevlett.124.202501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 02/11/2020] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
We measured missing mass spectrum of the ^{12}C(γ,p) reaction for the first time in coincidence with potential decay products from η^{'} bound nuclei. We tagged an (η+p) pair associated with the η^{'}N→ηN process in a nucleus. After applying kinematical selections to reduce backgrounds, no signal events were observed in the bound-state region. An upper limit of the signal cross section in the opening angle cosθ_{lab}^{ηp}<-0.9 was obtained to be 2.2 nb/sr at the 90% confidence level. It is compared with theoretical cross sections, whose normalization ambiguity is suppressed by measuring a quasifree η^{'} production rate. Our results indicate a small branching fraction of the η^{'}N→ηN process and/or a shallow η^{'}-nucleus potential.
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Affiliation(s)
- N Tomida
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - N Muramatsu
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Niiyama
- Department of Physics, Kyoto Sangyo University, Kyoto 603-8555, Japan
| | - J K Ahn
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - W C Chang
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - J Y Chen
- National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - M L Chu
- Institute of Physics, Academia Sinica, Taipei 11529, Taiwan
| | - S Daté
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Japan Synchrotron Radiation Research Institute (SPring-8), Sayo, Hyogo 679-5198, Japan
| | - T Gogami
- Department of Physics, Kyoto University, Kyoto 606-8502, Japan
| | - H Goto
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Hamano
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Hashimoto
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Q H He
- Department of Nuclear Science & Engineering, College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
| | - K Hicks
- Department of Physics and Astronomy, Ohio University, Athens, Ohio 45701, USA
| | - T Hiraiwa
- RIKEN SPring-8 Center, Sayo, Hyogo 679-5148, Japan
| | - Y Honda
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Hotta
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Ikuno
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Y Inoue
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Ishikawa
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - I Jaegle
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - J M Jo
- Department of Physics, Korea University, Seoul 02841, Republic of Korea
| | - Y Kasamatsu
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Katsuragawa
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - S Kido
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Kon
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Institute for Radiation Sciences, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Maruyama
- College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa 252-8510, Japan
| | - S Masumoto
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - Y Matsumura
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - M Miyabe
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - K Mizutani
- Thomas Jefferson National Accelerator Facility, Newport News, Virginia 23606, USA
| | - H Nagahiro
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Physics, Nara Women's University, Nara 630-8506, Japan
| | - T Nakamura
- Department of Education, Gifu University, Gifu 501-1193, Japan
| | - T Nakano
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Nam
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T N T Ngan
- Nuclear Physics Department, University of Science, Vietnam National University, Ho Chi Minh City 72711, Vietnam
| | - Y Nozawa
- Department of Radiology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - Y Ohashi
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - H Ohnishi
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Ohta
- Department of Radiology, The University of Tokyo Hospital, Tokyo 113-8655, Japan
| | - K Ozawa
- Institute of Particle and Nuclear Studies, High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
| | - C Rangacharyulu
- Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon SK S7N 5E2, Canada
| | - S Y Ryu
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - Y Sada
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Sasagawa
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - T Shibukawa
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - H Shimizu
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - R Shirai
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - K Shiraishi
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - E A Strokovsky
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Laboratory of High Energy Physics, Joint Institute for Nuclear Research, Dubna, Moscow Region 142281, Russia
| | - Y Sugaya
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - M Sumihama
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
- Department of Education, Gifu University, Gifu 501-1193, Japan
| | - S Suzuki
- Japan Synchrotron Radiation Research Institute (SPring-8), Sayo, Hyogo 679-5198, Japan
| | - S Tanaka
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - A Tokiyasu
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Tsuchikawa
- J-PARC Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, Japan
| | - T Ueda
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - H Yamazaki
- Radiation Science Center, High Energy Accelerator Research Organization (KEK), Tokai, Ibaraki 319-1195, Japan
| | - R Yamazaki
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - Y Yanai
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - T Yorita
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
| | - C Yoshida
- Research Center for Electron Photon Science, Tohoku University, Sendai, Miyagi 982-0826, Japan
| | - M Yosoi
- Research Center for Nuclear Physics, Osaka University, Ibaraki, Osaka 567-0047, Japan
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Arashi H, Sato T, Kobashigawa J, Luikart H, Kobayashi Y, Okada K, Sinha S, Honda Y, Yeung AC, Khush K, Fearon WF. Long-term clinical outcomes with use of an angiotensin-converting enzyme inhibitor early after heart transplantation. Am Heart J 2020; 222:30-37. [PMID: 32007823 DOI: 10.1016/j.ahj.2020.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2019] [Accepted: 01/04/2020] [Indexed: 10/25/2022]
Abstract
BACKGROUND The safety and efficacy of angiotensin converting enzyme inhibition (ACEI) after heart transplantation (HT) is unknown. This study examined long-term clinical outcomes after ACEI in HT recipients. METHODS The ACEI after HT study was a prospective, randomized trial that tested the efficacy of ACEI with ramipril after HT. In this study, long-term clinical outcomes were assessed in 91 patients randomized to either ramipril or placebo (median, 5.8 years). The primary endpoint was a composite of death, retransplantation, hospitalization for rejection or heart failure, and coronary revascularization. RESULTS The primary endpoint occurred in 10 of 45 patients (22.2%) in the ramipril group and in 14 of 46 patients (30.4%) in the placebo group (Hazard ratio (HR), 0.68; 95% CI, 0.29-1.51; P = .34). When the analysis was restricted to comparing patients who remained on a renin-angiotensin system inhibitor beyond 1 year with those who did not, there was a trend to improved outcomes (HR, 0.54; 95% CI, 0.22-1.28, P = .16). There was no significant difference in creatinine, blood urea nitrogen, and potassium at 3 years after randomization. The cumulative incidence of the primary endpoint was significantly higher in patients in whom the index of microcirculatory resistance increased from baseline to 1 year compared with those in whom it did not (39.1 vs 17.4%, HR: 3.36; 95% CI, 1.07-12.7; P = .037). CONCLUSION The use of ramipril after HT safely lowers blood pressure and is associated with favorable long-term clinical outcomes. Clinical Trial Registration-URL: https://www.clinicaltrials.gov. Unique identifier: NCT01078363.
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Kashiyama K, Sonoda S, Okada K, Matsushita K, Hibi K, Hollak B, Yock PG, Yeung A, Fitzgerald P, Honda Y. FEASIBILITY OF IVUS-DERIVED FFR AS A NOVEL TECHNIQUE TO ESTIMATE FUNCTIONAL SEVERITY OF CORONARY STENOSIS: SYSTEMATIC EVALUATION OF THE METHODS TO DETERMINE THE REFERENCE LUMEN AREA FOR AUTOMATED FFR CALCULATION. J Am Coll Cardiol 2020. [DOI: 10.1016/s0735-1097(20)32014-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Honda Y, Momosaki R, Ogata N. Nasogastric Tube Feeding Versus Total Parenteral Nutrition in Older Dysphagic Patients with Pneumonia: Retrospective Cohort Study. J Nutr Health Aging 2020; 24:883-887. [PMID: 33009540 DOI: 10.1007/s12603-020-1414-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVES Many older patients with pneumonia cannot intake orally after admission and may need nutritional care such as nasogastric tube feeding or total parenteral nutrition. This study sought to compare in-hospital outcomes between patients receiving nasogastric tube feeding and total parenteral nutrition. DESIGN This is a retrospective cohort study. SETTING A hospital-based database constructed by the Diagnosis Procedure Combination survey data comprising more than 100 acute-care hospitals. PARTICIPANTS The study included consecutive older inpatients aged >65 years admitted to participating hospitals with a diagnosis of pneumonia from 2014 through 2017. MEASUREMENTS We compared patients who received total parenteral nutrition and those who received nasogastric tube feeding in terms of characteristics and outcomes. RESULTS Among the included inpatients, a total of 336 (73.2%) patients received total parenteral nutrition and 123 (26.8%) patients received nasogastric tube feeding. Patients with nasogastric tube feeding had less in-hospital mortality (13.8% vs 27.1%, p = 0.003) and a smaller number of complications (mean; 0.71 vs 1.44, p <0.001), shorter length of hospital stay (mean; 27.6 vs 48.9, p <0.001), more discharges home (72.4% vs 35.1%, p <0.001), and more discharges without oral intake (65.9% vs 45.8%, p <0.001) than patients with total parenteral nutrition. The same results were obtained in propensity score analysis. CONCLUSIONS Older patients with pneumonia treated with total parenteral nutrition were significantly more likely to have higher in-hospital mortality than those receiving nasogastric tube feeding.
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Affiliation(s)
- Y Honda
- Ryo Momosaki, MD, PhD, MPH, Department of Rehabilitation Medicine, Mie University Graduate School of Medicine, 2-174 Edobashi, Tsu, Mie 514-8507, Japan, Tel: +81 59 232 1111; Fax: +81 59 231 5661, E-mail:
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Honda Y, Nishihira K, Kuriyama N, Yamashita A, Asada Y, Shibata Y. Visualization of a Rapidly Progressing Lipid-Rich Plaque Causing No-Reflow Phenomenon During Percutaneous Coronary Intervention - Insights From Near-Infrared Spectroscopy and Histopathology. Circ Rep 2019; 2:71-72. [PMID: 33693177 PMCID: PMC7929701 DOI: 10.1253/circrep.cr-19-0107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Affiliation(s)
- Yasuhiro Honda
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Kensaku Nishihira
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan.,Department of Pathology, Faculty of Medicine, University of Miyazaki Miyazaki Japan
| | - Nehiro Kuriyama
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
| | - Atsushi Yamashita
- Department of Pathology, Faculty of Medicine, University of Miyazaki Miyazaki Japan
| | - Yujiro Asada
- Department of Pathology, Faculty of Medicine, University of Miyazaki Miyazaki Japan
| | - Yoshisato Shibata
- Department of Cardiology, Miyazaki Medical Association Hospital Miyazaki Japan
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Okada K, Hibi K, Matsushita K, Yagami H, Tamura K, Honda Y, Kimura K. Intravascular ultrasound radiofrequency signal analysis of blood speckles: Physiological assessment of intermediate coronary artery stenosis. Catheter Cardiovasc Interv 2019; 96:E155-E164. [DOI: 10.1002/ccd.28612] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Revised: 10/04/2019] [Accepted: 11/12/2019] [Indexed: 02/04/2023]
Affiliation(s)
- Kozo Okada
- Division of Cardiology Yokohama City University Medical Center Yokohama Japan
| | - Kiyoshi Hibi
- Division of Cardiology Yokohama City University Medical Center Yokohama Japan
| | - Kensuke Matsushita
- Division of Cardiology Yokohama City University Medical Center Yokohama Japan
| | | | - Kouichi Tamura
- Department of Medical Science and Cardiorenal Medicine Yokohama City University Graduate School of Medicine Yokohama Japan
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine Stanford University School of Medicine Stanford California
| | - Kazuo Kimura
- Division of Cardiology Yokohama City University Medical Center Yokohama Japan
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Sugisaka J, Sugawara S, Toi Y, Ogasawara T, Aso M, Tsurumi K, Ono K, Shimizu H, Domeki Y, Aiba T, Kawana S, Saito R, Terayama K, Kawashima Y, Nakamura A, Yamanda S, Kimura Y, Honda Y. Pembrolizumab plus chemotherapy versus pembrolizumab monotherapy for PD-L1-positive advanced non-small cell lung cancer in the real world. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz438.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nishi T, Okada K, Kitahara H, Ikutomi M, Hollak MB, Yock PG, Popma J, Kusano H, Cheong WF, Sudhir K, Ellis S, Kereiakes D, Stone G, Honda Y, Kimura T. TCT-178 Intravascular Ultrasound Predictors of Long-Term Outcomes Following ABSORB Bioresorbable Scaffold Implantation: A Pooled Analysis of the ABSORB III and ABSORB Japan Trials. J Am Coll Cardiol 2019. [DOI: 10.1016/j.jacc.2019.08.235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Honda Y, Okada K, Nishi T, Kitahara H, Ikutomi M, Hollak MB, Yock PG, Popma J, Kusano H, Cheong WF, Sudhir K, Ellis S, Kereiakes D, Stone G, Kimura T. TCT-173 The ABSORB III and ABSORB Japan Trials: Final Intravascular Ultrasound Results. J Am Coll Cardiol 2019. [DOI: 10.1016/j.jacc.2019.08.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Okada K, Nishi T, Tanaka S, Luikart H, Yock PG, Yeung AC, Hibi K, Kimura K, Schnittger I, Khush K, Fearon W, Honda Y. TCT-345 Impact of Myocardial Bridging on Long-Term Outcomes After Heart Transplantation: Risk Stratification With IVUS-Determined Anatomical Properties. J Am Coll Cardiol 2019. [DOI: 10.1016/j.jacc.2019.08.427] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Inoue M, Yoshida J, Oka S, Honda Y, Chikaishi Y, Yasuda D. P1.04-53 A High PD-L1 Expression in Non-Small Cell Lung Cancer Correlates with Expression of SPOP and CD8 Tumor-Infiltrating Lymphocytes. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Toi Y, Sugawara S, Aso M, Tsurumi K, Ono K, Sugisaka J, Shimizu H, Ono H, Domeki Y, Aiba T, Kawana S, Saito R, Terayama K, Kawashima Y, Nakamura A, Yamanda S, Kimura Y, Honda Y. P1.16-29 Profiling Immune-Related Adverse Events (irAEs) in Patients with Anti-PD-1 for Advanced Non-Small Cell Lung Cancer. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1255] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tsuji S, Matsuzaki H, Iseki M, Nagasu A, Hirano H, Ishihara K, Ueda N, Honda Y, Horiuchi T, Nishikomori R, Morita Y, Mukai T. Functional analysis of a novel G87V TNFRSF1A mutation in patients with TNF receptor-associated periodic syndrome. Clin Exp Immunol 2019; 198:416-429. [PMID: 31429073 DOI: 10.1111/cei.13365] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/14/2019] [Indexed: 12/17/2022] Open
Abstract
Tumor necrosis factor (TNF) receptor-associated periodic syndrome (TRAPS) is an autoinflammatory disease that is caused by heterozygous mutations in the TNFRSF1A gene. Although more than 150 TNFRSF1A mutations have been reported to be associated with TRAPS phenotypes only a few, such as p.Thr79Met (T79M) and cysteine mutations, have been functionally analyzed. We identified two TRAPS patients in one family harboring a novel p.Gly87Val (G87V) mutation in addition to a p.Thr90Ile (T90I) mutation in TNFRSF1A. In this study, we examined the functional features of this novel G87V mutation. In-vitro analyses using mutant TNF receptor 1 (TNF-R1)-over-expressing cells demonstrated that this mutation alters the expression and function of TNF-R1 similar to that with the previously identified pathogenic T79M mutation. Specifically, cell surface expression of the mutant TNF-R1 in transfected cells was inhibited with both G87V and T79M mutations, whereas the T90I mutation did not affect this. Moreover, peripheral blood mononuclear cells (PBMCs) from TRAPS patients harboring the G87V and T90I mutations showed increased mitochondrial reactive oxygen species (ROS). Furthermore, the effect of various Toll-like receptor (TLR) ligands on inflammatory responses was explored, revealing that PBMCs from TRAPS patients are hyper-responsive to TLR-2 and TLR-4 ligands and that interleukin (IL)-8 and granulocyte-macrophage colony-stimulating factor (GM-CSF) are likely to be involved in the pathogenesis of TRAPS. These findings suggest that the newly identified G87V mutation is one of the causative mutations of TRAPS. Our findings based on unique TRAPS-associated mutations provide novel insight for clearer understanding of inflammatory responses, which would be basic findings of developing a new therapeutic and prophylactic approach to TRAPS.
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Affiliation(s)
- S Tsuji
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - H Matsuzaki
- Department of Life Sciences, Faculty of Life and Environmental Sciences, Prefectural University of Hiroshima, Shobara, Hiroshima, Japan
| | - M Iseki
- Department of Immunology and Molecular Genetics, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - A Nagasu
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - H Hirano
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - K Ishihara
- Department of Immunology and Molecular Genetics, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - N Ueda
- Department of Internal Medicine, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan
| | - Y Honda
- Department of Pediatrics, Kyoto University Graduate School of Medicine, Kyoto, Japan
| | - T Horiuchi
- Department of Internal Medicine, Kyushu University Beppu Hospital, Beppu, Oita, Japan
| | - R Nishikomori
- Department of Pediatrics, Kyoto University Graduate School of Medicine, Kyoto, Japan.,Department of Pediatrics and Child Health, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Y Morita
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Okayama, Japan
| | - T Mukai
- Department of Rheumatology, Kawasaki Medical School, Kurashiki, Okayama, Japan
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Okada K, Honda Y, Luikart H, Yock PG, Fitzgerald PJ, Yeung AC, Valantine HA, Khush KK, Fearon WF. Early invasive assessment of the coronary microcirculation predicts subsequent acute rejection after heart transplantation. Int J Cardiol 2019; 290:27-32. [DOI: 10.1016/j.ijcard.2019.04.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2018] [Revised: 03/12/2019] [Accepted: 04/05/2019] [Indexed: 10/27/2022]
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Sonoda S, Hibi K, Okura H, Fujii K, Honda Y, Kobayashi Y. Current clinical use of intravascular ultrasound imaging to guide percutaneous coronary interventions. Cardiovasc Interv Ther 2019; 35:30-36. [PMID: 31281937 DOI: 10.1007/s12928-019-00603-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 06/24/2019] [Indexed: 12/17/2022]
Abstract
During the past three decades, since the invention of intravascular ultrasound (IVUS), it has become increasingly important as daily clinical applications. However, it evolved with no Japanese standards for the measurement of images, the index of percutaneous coronary intervention (PCI) procedures, and the reporting of results. Accordingly, the purpose of this review article is to provide an optimal and consistent approach to IVUS usage during PCI for clinicians and investigators.
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Affiliation(s)
- Shinjo Sonoda
- The Second Department of Internal Medicine, School of Medicine, University of Occupational and Environmental Health, 1-1 Iseigaoka, Yahatanishi-ku, Kitakyushu, 807-8555, Japan.
| | - Kiyoshi Hibi
- Division of Cardiology, Yokohama City University Medical Center, Yokohama, Japan
| | - Hiroyuki Okura
- Department of Cardiology, Gifu University School of Medicine, Gifu, Japan
| | - Kenichi Fujii
- Division of Cardiology, Department of Medicine, Kansai Medical University, Osaka, Japan
| | - Yasuhiro Honda
- Division of Cardiovascular Medicine, Stanford University School of Medicine, Stanford, CA, USA
| | - Yoshio Kobayashi
- Department of Cardiovascular Medicine, Chiba University Graduate School of Medicine, Chiba, Japan
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