Publications by authors named "Shozo Ishihara"
Background: The anatomical approach for the management of para-Hisian ventricular arrhythmias (VAs) with QRS morphological changes after catheter ablation (CA) has not been well investigated.
Objective: We aimed to evaluate the electrocardiographic and electrophysiological findings and ablation outcomes of para-Hisian VAs with QRS morphological changes after CA.
Methods: Of the 30 patients who underwent CA for para-Hisian VAs at 4 institutions, 10 (33%) had QRS morphological changes after ablation.
A serial optical frequency-domain imaging study of early and late vascular responses to bioresorbable-polymer sirolimus-eluting stents for the treatment of acute myocardial infarction and stable coronary artery disease patients: results of the MECHANISM-ULTIMASTER study.
Cardiovasc Interv Ther
April 2022
Article Synopsis
- - This study evaluated how bioresorbable-polymer sirolimus-eluting stents (BP-SESs) affected vascular healing in patients suffering from ST-elevation myocardial infarction (STEMI) and stable coronary artery disease (CAD) over time.
- - A total of 207 patients (106 STEMI and 101 CAD) were monitored for changes using optical imaging at baseline and after 1, 3, and 12 months, showing a significant decrease in uncovered stents over time in both patient groups.
- - While the STEMI group showed notable improvement in healing during the follow-up period, the CAD group did not exhibit significant changes; however, by one year, both groups had similar levels of
Background: Analysis of pooled clinical data has shown the safety of 3 months of dual antiplatelet therapy with everolimus-eluting cobalt-chromium stents (Co-Cr EESs). This study evaluated early and mid-term vascular responses to Co-Cr EESs in patients with stable coronary artery disease.
Methods: The Multicenter Comparison of Early and Late Vascular Responses to Everolimus-Eluting Cobalt-Chromium Stent and Platelet Aggregation Studies in Patients With Stable Angina Managed as Elective Case (MECHANISM-Elective) study (NCT02014818) is a multicenter optical coherence tomography (OCT) registry.
Article Synopsis
- * Utilizing frequency domain-optical coherence tomography (FD-OCT), researchers found significant improvements in strut coverage, strut apposition, and a decrease in thrombus size after two weeks, indicating better vascular behavior.
- * Results showed larger lumen areas and fewer dissection flaps at the follow-up, suggesting that these early benefits could contribute to the overall safety and effectiveness of CoCr-EES in managing STEMI patients in the initial recovery period. *
A novel method to bail out coronary perforation: Micro-catheter distal perfusion technique.
Catheter Cardiovasc Interv
September 2015
Coronary perforation is a rare, but life-threatening complication during percutaneous coronary intervention. Prolonged balloon inflation is one option for achieving hemostasis, but it often causes ST elevation, chest pain, decreased blood pressure, or fatal arrhythmia due to ischemia. We present the case of a 73-year-old woman who suffered severe coronary perforation after stent implantation and post-dilatation.
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