Kyoto University · Medicine
Professor Tetsuma Kawaji's research lab specializes in interventional electrophysiology and cardiac ablation therapies, with a focus on optimizing radiofrequency catheter ablation (RFCA) techniques for atrial fibrillation (AF) and understanding the electrophysiological and hemodynamic determinants of procedural success. The lab investigates physiological markers such as left ventricular outflow tract (LVOT) obstruction, biomarkers like BNP, and procedural parameters—including contact force, radiofrequency power, and timing metrics—to improve long-term outcomes in patients with complex cardiac arrhythmias and acute coronary syndromes. Their work also explores the feasibility and predictive value of electroanatomical mapping during different cardiac rhythms, particularly in challenging clinical subgroups.
Figures are computed from collected data and may differ slightly.
AI was strongly correlated with lesion depth, width, and volume, but only within a small range of contact angles and RF power delivery settings.
In 35 consecutive patients with TC, those with significant LVOT obstruction (33%) had a more serious clinical presentation such as CHF and hypotension, but had similar 3-year mortality rate as compared with those without.
The long-term mortality of STEMI patients complicated by cardiogenic shock due to acute pump failure remains high even in the current clinical practice. In this high-risk category of patients, shorter onset-to-balloon and door-to-balloon time were associated with significantly lower long-term risk for mortality.
EAVM during AF rhythm was feasible and the optimal cutoff value of LVA was 0.2 mV for detecting LVA ≤ 0.5 mV during SR. However, the evidence is restricted to patients with relatively small LVA.
Intravenous nifekalant injection during additional CFAE ablation did not improve sinus maintenancerate after RFCA procedure for AF, but AF termination by nifekalant injection could be a clinical predictor of better success rates after procedure.
Low BNP concentrations had a favorable impact on clinical outcomes after AF ablation. The heterogeneous impact of baseline BNP concentrations on arrhythmia recurrence for the subgroups of patients divided by AF type warrants future larger studies with longer follow-up periods.
Inverted T wave was commonly observed in patients with AF and its presence during AF rhythm was associated with subsequent cardiac events.
Background The clinical significance of fibrillatory wave on electrocardiography during atrial fibrillation (AF) is poorly understood. The aim of the current study was to explore the association of fine fibrillatory wave with heart failure (HF) in AF. Methods and Results The current study enrolled 2442 patients with AF whose baseline ECG during AF rhythm was available from a community-based prospective survey, the Fushimi AF Registry. The impact of fine fibrillatory wave, defined as the amplitud
HomeCirculationVol. 126, No. 13Coronary Air Embolism and Cardiogenic Shock During Computed Tomography-Guided Needle Biopsy of the Lung Free AccessBrief ReportPDF/EPUBAboutView PDFView EPUBSections ToolsAdd to favoritesDownload citationsTrack citationsPermissionsDownload Articles + Supplements ShareShare onFacebookTwitterLinked InMendeleyReddit Jump toSupplemental MaterialFree AccessBrief ReportPDF/EPUBCoronary Air Embolism and Cardiogenic Shock During Computed Tomography-Guided Needle Biopsy of
DES implantation provided favorable long-term clinical outcomes with an acceptably low incidence of fatal bleeding in a real-world population of ACS patients. However, prolonged DAPT seems to be associated with major bleeding after DES implantation.
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