Publications by authors named "Shigetaka Noma"

Background: Although the use of intravascular ultrasound (IVUS) during percutaneous coronary intervention (PCI) has been shown to improve clinical outcomes, its utilization remains inconsistent. We aimed to assess the association between IVUS-guided PCI and long-term outcomes in Japan, where a high proportion of patients undergo IVUS.

Methods: We analyzed 8721 consecutive patients in a multicenter PCI registry.

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Background: Low-dose prasugrel (3.75 mg) is used as maintenance therapy for percutaneous coronary intervention; however, data on long-term outcomes are scarce.

Methods And Results: We analyzed 5,392 participants in the KiCS-PCI registry who were administered low-dose prasugrel or clopidogrel at discharge between 2008 and 2018 and for whom 2-year follow-up data were available.

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Long-term outcomes of iatrogenic coronary dissection and perforation in patients undergoing percutaneous coronary intervention (PCI) remains under-investigated. We analyzed 8,721 consecutive patients discharged after PCI between 2008 and 2019 from Keio Cardiovascular (KiCS) PCI multicenter prospective registry in the Tokyo metropolitan area. Significant coronary dissection was defined as persistent contrast medium extravasation or spiral or persistent filling defects with complete distal and impaired flow.

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Young patients who underwent percutaneous coronary intervention (PCI) have shown worse long-term outcomes but remain inadequately investigated. We analyzed 1,186 consecutive young patients (aged ≤55 years) from the Keio Cardiovascular PCI registry who were successfully discharged after PCI (2008 to 2019) and compared them to 5,048 older patients (aged 55 to 75 years). The primary outcome was a composite of all-cause death, acute coronary syndrome, heart failure, bleeding, stroke requiring admission, and coronary artery bypass grafting within 2 years after discharge.

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Background: High mortality in patients with acute coronary syndrome (ACS) without standard modifiable cardiovascular risk factors [SMuRFs (e.g. diabetes, hypertension, smoking, and dyslipidemia)] has been reported.

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Background: Stent thrombosis (ST) is a rare, yet devastating, complication following percutaneous coronary intervention (PCI), with poorly understood pathophysiologic characteristics and genetic backgrounds.

Objectives: The authors performed a genome-wide association study to identify the common genetic loci associated with early stent thrombosis (EST) and late/very late ST (LST/VLST) in a contemporary Japanese multicenter PCI registry.

Methods: Among 8,642 PCI patients included in the registry, 42 who experienced stent thrombosis [EST (n = 15) and LST/VLST (n = 27)] were included (mean age, 67.

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The advances in the integrated management of patients with coronary artery disease undergoing percutaneous coronary intervention (PCI) have reduced subsequent cardiovascular events. Nonetheless, sudden cardiac death (SCD) remains a major concern. Therefore, we aimed to investigate the time trend in SCD incidence after PCI and to identify the clinical factors contributing to SCD.

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Toxicity resulting from retained contrast media may cause adverse cardiovascular outcomes (e.g., heart failure and cardiogenic shock) for dialysis patients.

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Article Synopsis
  • Acute kidney injury (AKI) following percutaneous coronary intervention (PCI) significantly increases the risk of serious health issues, and the traditional NCDR risk model requires many clinical variables for pre-procedural predictions.
  • This study evaluated 19,222 patients in Japan, utilizing machine learning techniques to see if AKI could be predicted with fewer variables, leading to the identification of seven key risk factors.
  • The results indicated that the machine learning model performed comparably to the traditional model despite using fewer variables, suggesting that ML could improve the efficiency of risk assessment in clinical settings.
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Article Synopsis
  • A study evaluated the safety and effectiveness of antithrombotic regimens in patients undergoing percutaneous coronary intervention (PCI) while on oral anticoagulant (OAC) therapy, analyzing data from nearly 27,000 patients in Japan from 2016 to 2017.
  • The research compared in-hospital bleeding, mortality, and stent thrombosis rates between two groups: those receiving double therapy (OAC + single antiplatelet) and those on triple therapy (OAC + dual antiplatelet).
  • Results showed no significant difference in bleeding or mortality rates between the two groups, but stent thrombosis was notably higher in the triple therapy group, indicating a need for further investigation on the safety
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Background Acute kidney injury (AKI) is a common complication of percutaneous coronary intervention. This risk can be minimized with reduction of contrast volume via preprocedural risk assessment. We aimed to identify quality gaps for implementing the available risk scores introduced to facilitate more judicious use of contrast volume.

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In the International Study of Comparative Health Effectiveness with Medical and Invasive Approaches (ISCHEMIA) trial, an early invasive strategy did not decrease mortality compared to a conservative strategy for stable ischemic heart disease (SIHD) patients with moderate-to-severe ischemia, and the role of revascularization would be revised. However, the applicability and potential influence of this trial in daily practice remains unclear. Our objective was to assess the eligibility and representativeness of the ISCHEMIA trial on the patients with percutaneous coronary intervention (PCI).

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This cohort study examines the association between second-generation drug-eluting stent length and cardiovascular and bleeding events in Japanese patients with ischemic heart disease.

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This observational study aimed to examine the extent of early invasive strategy (EIS) utilization in patients with non-ST elevation acute coronary syndrome (NSTE-ACS) according to the National Cardiovascular Data Registry (NCDR) CathPCI risk score, and its association with clinical outcomes. Using a prospective multicenter Japanese registry, 2968 patients with NSTE-ACS undergoing percutaneous coronary intervention within 72 hours of hospital arrival were analyzed. Multivariable logistic regression analyses were performed to determine predictors of EIS utilization.

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Background: Multiple randomized clinical trials have demonstrated that transradial intervention (TRI) improves clinical outcomes after percutaneous coronary intervention (PCI) compared with transfemoral intervention (TFI). However, chronic kidney disease (CKD) patients have more procedure-related complications; TRI is frequently avoided for future creation of arteriovenous fistulas essential for hemodialysis. Therefore, limited information on TRI among CKD patients exists.

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Background: Patients presenting with acute coronary syndrome (ACS) from left main (LM) disease are at a high risk for mortality despite recent advancement in devices and techniques during percutaneous coronary interventions (PCI). We aimed to evaluate patient characteristics, clinical presentations, and key clinical characteristics associated with adverse in-hospital outcomes among ACS patients undergoing LM-PCI.

Methods: We retrospectively identified 280 LM-ACS patients (3.

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Background: Extra-cardiac vascular diseases (ECVDs), such as cerebrovascular disease (CVD) or peripheral arterial disease (PAD), are frequently observed among patients with acute coronary syndrome (ACS). However, it is not clear how these conditions affect patient outcomes in the era of transradial coronary intervention (TRI).

Methods And Results: Among 7,980 patients with ACS whose data were extracted from the multicenter Japanese percutaneous coronary intervention (PCI) registry between August 2008 and March 2017, 888 (11.

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Clinical trial data suggest that intravascular ultrasound (IVUS) may improve clinical outcomes after PCI. The aim of this study was to investigate the safety of IVUS in its broader use for percutaneous coronary intervention (PCI). A total of 11,570 consecutive patients undergoing PCI between 2008 and 2014 in Japan were analyzed.

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Background: Periprocedural stroke is a rare but life-threatening complication of percutaneous coronary intervention (PCI). Transradial intervention (TRI) is more beneficial than transfemoral intervention for periprocedural bleeding and acute kidney injuries, but its effect on periprocedural stroke has not been fully investigated. Our study aimed to assess risk predictors of periprocedural stroke according to PCI access site.

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Article Synopsis
  • Researchers studied 17,225 heart patients to understand a problem called catheter-induced coronary artery dissection (CICAD) that can happen during a heart procedure called PCI.
  • They found that CICAD happened in about 1% of cases, mostly in older men and sometimes in women with complex heart issues.
  • CICAD can lead to more serious heart problems in the hospital, no matter if blood flow gets better or not after the procedure.
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Background: Limiting the contrast volume to creatinine clearance (V/CrCl) ratio is crucial for preventing contrast-induced acute kidney injury (CI-AKI) after percutaneous coronary intervention (PCI). However, the incidence of CI-AKI and the distribution of V/CrCl ratios may vary according to patient body habitus.

Objective: We aimed to identify the clinical factors predicting CI-AKI in patients with different body mass indexes (BMIs).

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Scarce data exist regarding the relation between baseline hemoglobin and in-hospital outcomes after percutaneous coronary intervention (PCI). We studied 13,010 cases of PCI in a Japanese multicenter registry from 2008 to 2016. Patients were divided into 5 groups according to 2-g/dl increments in their preprocedural hemoglobin (from <10 to >16 g/dl).

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Background: Acute coronary syndrome (ACS) may occur during any human activity, including driving. The objectives of this study were to report the frequency of ACS occurring while driving, clarify patient characteristics, and analyze the behavioral patterns of drivers who sustained ACS.

Methods: A single-center, retrospective observational study was conducted using prospectively acquired data.

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Statin therapy is regarded as an effective medication to reduce cardiovascular events in patients at higher risk for future incidence of coronary artery disease. However, very few studies have been conducted to examine its implementation in non-Western real-world practice. In this study, we sought to describe statin prescription patterns in relation to patient characteristics in a Japanese multicenter percutaneous coronary intervention (PCI) registry as a foundation for quality improvement.

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