Publications by authors named "T Kawaji"
Recent advances in three-dimensional (3D) ultra-high-density mapping systems have uncovered previously unknown mechanisms underlying various arrhythmias. This clinical review, titled "3D Mapping Quest," focuses on the recently uncovered mechanisms of four types of arrhythmias. (1) To elucidate the precise mechanisms underlying atrial fibrillation (AF), ultra-high-density mapping with adequate spatial and temporal resolution is essential.
View Article and Find Full Text PDFAims: The clinical significance of bundle branch block (BBB) during atrial fibrillation (AF) rhythm in relation to heart failure (HF) events remains to be elucidated. This study aimed to explore the associations between BBB patterns and HF in AF patients.
Methods And Results: We enrolled 2721 AF patients whose baseline electrocardiography during AF rhythm was available from a community-based prospective survey, the Fushimi AF Registry.
Article Synopsis
- The study investigates the heart's energy dynamics during acute heart failure (HF) to understand what happens during decompensation, which is when the heart can't pump effectively.
- It involved 50 patients with decompensated HF, measuring intracardiac energy loss (EL) using echo-vector flow mapping at both admission and discharge, comparing results with 40 stable patients who do not have HF.
- Findings showed that energy loss in the left ventricle increased significantly in decompensated HF cases compared to compensated ones, indicating energy inefficiency in the heart, especially among patients with preserved ejection fraction.
Article Synopsis
- Atrial fibrillation (AF) and heart failure with preserved ejection fraction (HFpEF) often occur together, but there's limited guidance on managing patients with both conditions, prompting the need for this study.
- The study used data from the Fushimi AF Registry in Japan to identify factors predicting serious outcomes (like cardiac death or HF hospitalization) in AF patients with HFpEF, while also testing these predictors in another patient registry.
- Among 755 patients analyzed, critical risk factors for adverse outcomes included being aged 75 or older and having non-cardiovascular diseases like anemia and diabetes; cardiovascular diseases did not show a significant link to these adverse outcomes.