| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2021: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2020: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Outline of Final Research Achievements |
This study examined the usefulness of preoperative non-invasive tests for predicting recurrence after catheter ablation for atrial fibrillation.
1) Focusing on the P wave during sinus rhythm before the procedure, we investigated the relationship between the P-wave signal-averaged ECG (P-SAECG) and recurrence after atrial fibrillation ablation. By calculating RMS20 and fPd detected by P-SAECG, we reported that cases showing a decrease in RMS20 or an extension of fPd had significantly higher recurrence rates after catheter ablation.
2) Focusing on the electrocardiogram recorded with preoperative atrial fibrillation, we investigated the relationship between the atrial fibrillation cycle length (FCL) and recurrence after atrial fibrillation ablation. We calculated the cutoff value of FCL that could predict recurrence and reported that cases with longer FCL than this cutoff value had a higher recurrence rate after atrial fibrillation ablation.
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