Author
Masakiyo Nobuyoshi
Other affiliations: Kyoto University, Fukuoka University
Bio: Masakiyo Nobuyoshi is an academic researcher from Memorial Hospital of South Bend. The author has contributed to research in topics: Stent & Restenosis. The author has an hindex of 52, co-authored 219 publications receiving 14569 citations. Previous affiliations of Masakiyo Nobuyoshi include Kyoto University & Fukuoka University.
Papers published on a yearly basis
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Thomas Jefferson University1, Harvard University2, Scripps Health3, University of Pittsburgh4, University of British Columbia5, Memorial Hospital of South Bend6, Yale University7, Arizona Heart Institute8, University of Toronto9, St Lukes Episcopal Hospital10, Johns Hopkins University11, Lenox Hill Hospital12, University of Pennsylvania13, University of Texas at San Antonio14, Cleveland Clinic15
TL;DR: In selected patients, placement of an intracoronary stent, as compared with balloon angioplasty, results in an improved rate of procedural success, a lower rate of angiographically detected restenosis, a similar rate of clinical events after six months, and a less frequent need for revascularization of the original coronary lesion.
Abstract: Background Coronary-stent placement is a new technique in which a balloon-expandable, stainless-steel, slotted tube is implanted at the site of a coronary stenosis. The purpose of this study was to compare the effects of stent placement and standard balloon angioplasty on angiographically detected restenosis and clinical outcomes. Methods We randomly assigned 410 patients with symptomatic coronary disease to elective placement of a Palmaz-Schatz stent or to standard balloon angioplasty. Coronary angiography was performed at base line, immediately after the procedure, and six months later. Results The patients who underwent stenting had a higher rate of procedural success than those who underwent standard balloon angioplasty (96.1 percent vs. 89.6 percent, P = 0.011), a larger immediate increase in the diameter of the lumen (1.72 ±0.46 vs. 1.23 ±0.48 mm, P<0.001), and a larger luminal diameter immediately after the procedure (2.49 ±0.43 vs. 1.99 ±0.47 mm, P<0.001). At six months, the patients with stented ...
4,300 citations
TL;DR: Restenosis is most prevalent between 1 and 3 months and rarely occurs beyond 3 months after coronary angioplasty and reached a plateau thereafter.
892 citations
TL;DR: The quantitative model originally developed for restenosis after stenting or atherectomy may be generalized to include conventional balloon angioplasty and shows that the apparent differences in restenotic among the three interventions studied are due solely to differences in the immediate result provided and not to Differences in the behavior of subsequent late loss.
539 citations
Ludwig Maximilian University of Munich1, University of Göttingen2, Shaare Zedek Medical Center3, Université de Montréal4, University of British Columbia5, Vita-Salute San Raffaele University6, University of Hamburg7, London Chest Hospital8, Memorial Hospital of South Bend9, Erasmus University Rotterdam10, Johnson & Johnson11, Boston Scientific Corporation12
TL;DR: These data confirm that, in selected patients, stents can safely be implanted without the use of systemic anticoagulation, provided optimal stent expansion is achieved.
Abstract: Objectives A study was set up to validate the safety and feasibility of intravascular ultrasound-guided stenting without subsequent anticoagulation, and its impact on the 6 months restenosis rate.
Methods The study was designed to be multicentred, prospective, and observational.
Results One hundred and sixty-one patients with stable angina and a de novo coronary artery lesion were enrolled. In four patients, the implantation of a Palmaz–Schatz (with spiral bridge) stent had failed. One of these four patients died 3 days following bypass surgery. In two other patients, intravascular ultrasound assessment was not performed. One hundred and twenty-five of the remaining 155 patients (81%) were treated with aspirin (100mg.day−1), because all three criteria for optimized stent expansion were met. Twenty-two of the remaining 38 patients (25%), in whom at least one criterion was not met were treated with aspirin and acenocoumarol (3 months, INR 2·5–3·5), while 16 patients only received aspirin. Stent thrombosis was documented in two patients (1·3%) for which repeat angioplasty was performed. During the hospital stay, there were no deaths or Q-wave myocardial infarctions. Five patients (3·2%) sustained a non-Q-wave myocardial infarction. During the follow-up period (198±38 days, complete for all patients, except one), one patient (0·6%) sustained a Q-wave myocardial infarction, one (0·6%) underwent bypass surgery, and repeat angioplasty was performed in nine patients (5·7%). In two of the nine patients, repeat angioplasty involved another lesion. Therefore, the target lesion revascularization rate during follow-up was 4·5% (seven patients).At quantitative coronary angiography, the minimal lumen diameter (mean±SD) increased from 1·12± 0·34mm before to 2·89±0·35mm after stenting. Repeat angiography at 6 months was performed in 144 patients (92%). The minimal lumen diameter at follow-up was 2·12±0·67mm. Restenosis (diameter stenosis of 50% or more) was documented in 12 patients or 8·3%. When the two patients with documented stent thrombosis are included, the restenosis rate amounts to 9·7%.
Conclusions These data confirm that, in selected patients, stents can safely be implanted without the use of systemic anticoagulation, provided optimal stent expansion is achieved. The exact role of intravascular ultrasound in the achievement of these results needs to be established by appropriately designed studies. In the meantime, intra-vascular ultrasound coupled with the Palmaz–Schatz stent incorporating a spiral bridge, may have contributed considerably to the immediate angiographic outcome, which in turn may explain the favourable clinical and angiographic outcome at 6 months.
455 citations
TL;DR: Morphometric analysis revealed that the extent of intimal proliferation was significantly greater in lesions with evidence of medial or adventitial tears than in patients with no or only intimal tears, providing a pathologic background for clinical reports that restenosis is predominantly found within 6 months after coronary angioplasty.
416 citations
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TL;DR: The once-in-a-lifetime treatment with Abciximab Intracoronary for acute coronary syndrome and a second dose intravenously for atrial fibrillation is recommended for adults with high blood pressure.
Abstract: ACE
: angiotensin-converting enzyme
ACS
: acute coronary syndrome
ADP
: adenosine diphosphate
AF
: atrial fibrillation
AMI
: acute myocardial infarction
AV
: atrioventricular
AIDA-4
: Abciximab Intracoronary vs. intravenously Drug Application
APACHE II
: Acute Physiology Aand Chronic
7,519 citations
TL;DR: WRITING GROUP MEMBERS Emelia J. Benjamin, MD, SCM, FAHA Michael J. Reeves, PhD Matthew Ritchey, PT, DPT, OCS, MPH Carlos J. Jiménez, ScD, SM Lori Chaffin Jordan,MD, PhD Suzanne E. Judd, PhD
Abstract: WRITING GROUP MEMBERS Emelia J. Benjamin, MD, SCM, FAHA Michael J. Blaha, MD, MPH Stephanie E. Chiuve, ScD Mary Cushman, MD, MSc, FAHA Sandeep R. Das, MD, MPH, FAHA Rajat Deo, MD, MTR Sarah D. de Ferranti, MD, MPH James Floyd, MD, MS Myriam Fornage, PhD, FAHA Cathleen Gillespie, MS Carmen R. Isasi, MD, PhD, FAHA Monik C. Jiménez, ScD, SM Lori Chaffin Jordan, MD, PhD Suzanne E. Judd, PhD Daniel Lackland, DrPH, FAHA Judith H. Lichtman, PhD, MPH, FAHA Lynda Lisabeth, PhD, MPH, FAHA Simin Liu, MD, ScD, FAHA Chris T. Longenecker, MD Rachel H. Mackey, PhD, MPH, FAHA Kunihiro Matsushita, MD, PhD, FAHA Dariush Mozaffarian, MD, DrPH, FAHA Michael E. Mussolino, PhD, FAHA Khurram Nasir, MD, MPH, FAHA Robert W. Neumar, MD, PhD, FAHA Latha Palaniappan, MD, MS, FAHA Dilip K. Pandey, MBBS, MS, PhD, FAHA Ravi R. Thiagarajan, MD, MPH Mathew J. Reeves, PhD Matthew Ritchey, PT, DPT, OCS, MPH Carlos J. Rodriguez, MD, MPH, FAHA Gregory A. Roth, MD, MPH Wayne D. Rosamond, PhD, FAHA Comilla Sasson, MD, PhD, FAHA Amytis Towfighi, MD Connie W. Tsao, MD, MPH Melanie B. Turner, MPH Salim S. Virani, MD, PhD, FAHA Jenifer H. Voeks, PhD Joshua Z. Willey, MD, MS John T. Wilkins, MD Jason HY. Wu, MSc, PhD, FAHA Heather M. Alger, PhD Sally S. Wong, PhD, RD, CDN, FAHA Paul Muntner, PhD, MHSc On behalf of the American Heart Association Statistics Committee and Stroke Statistics Subcommittee Heart Disease and Stroke Statistics—2017 Update
7,190 citations
TL;DR: 2017 ESC Guidelines for the management of acute myocardial infarction in patients presenting with ST-segment elevation are published.
Abstract: 2017 ESC Guidelines for the management of acute myocardial infarction in patients presenting with ST-segment elevation The Task Force for the management of acute myocardial infarction in patients presenting with ST-segment elevation of the European Society of Cardiology (ESC)
6,599 citations
TL;DR: Author(s): Writing Group Members; Mozaffarian, Dariush; Benjamin, Emelia J; Go, Alan S; Arnett, Donna K; Blaha, Michael J; Cushman, Mary; Das, Sandeep R; de Ferranti, Sarah; Despres, Jean-Pierre; Fullerton, Heather J; Howard, Virginia J; Huffman, Mark D; Isasi, Carmen R; Jimenez, Monik C; Judd, Suzanne
Abstract: Author(s): Writing Group Members; Mozaffarian, Dariush; Benjamin, Emelia J; Go, Alan S; Arnett, Donna K; Blaha, Michael J; Cushman, Mary; Das, Sandeep R; de Ferranti, Sarah; Despres, Jean-Pierre; Fullerton, Heather J; Howard, Virginia J; Huffman, Mark D; Isasi, Carmen R; Jimenez, Monik C; Judd, Suzanne E; Kissela, Brett M; Lichtman, Judith H; Lisabeth, Lynda D; Liu, Simin; Mackey, Rachel H; Magid, David J; McGuire, Darren K; Mohler, Emile R; Moy, Claudia S; Muntner, Paul; Mussolino, Michael E; Nasir, Khurram; Neumar, Robert W; Nichol, Graham; Palaniappan, Latha; Pandey, Dilip K; Reeves, Mathew J; Rodriguez, Carlos J; Rosamond, Wayne; Sorlie, Paul D; Stein, Joel; Towfighi, Amytis; Turan, Tanya N; Virani, Salim S; Woo, Daniel; Yeh, Robert W; Turner, Melanie B; American Heart Association Statistics Committee; Stroke Statistics Subcommittee
6,181 citations
TL;DR: March 5, 2019 e1 WRITING GROUP MEMBERS Emelia J. Virani, MD, PhD, FAHA, Chair Elect On behalf of the American Heart Association Council on Epidemiology and Prevention Statistics Committee and Stroke Statistics Subcommittee.
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5,739 citations