#2589 TIMING OF ATRIAL FIBRILLATION OCCURRENCE IN HEMODIALYSIS PATIENTS WITH CARDIAC IMPLANTABLE ELECTRICAL DEVICES

Abstract Background and Aims Hemodialysis (HD) patients has the high prevalence of atrial fibrillation (AF), procedure HD itself might be related to risk factors for onset AF. On other hand, cardiac implantable electronic devices (CIEDs), such as pacemaker, cardioverter-defibrillators (ICD) resynchronization therapy (CRT) have function arrhythmia detection. However, in with CIEDs, there are no studies that observe AF over long periods time. The aim this study is investigate duration AF, using detection memory CIEDs. Method Consecutive who were newly implanted CIEDs between January 2008 December 2021 retrospectively analyzed study. Patients chronic leadless pacemaker without post-implantation follow-up excluded from Subclinical was defined previous tachyarrhythmia lasting more than 6 minutes memories devices. primary endpoint subclinical within one year after CIESDs implantation. week follows according schedule, HD1: Monday or Tuesday; HD1+1: Tuesday Wednesday; HD2 Wednesday Thursday; HD2+1 Thursday Friday; HD3 Friday Saturday; HD3+1 Saturday Sunday; HD3+2 Sunday Monday. We examined association HD. Results Fifty-four had been (pacemaker: 37, ICD: 6, CRT: 11) enrolled During a mean period 352 ± 36 days, 26 54 (48.1%) patients, 124 events (1-8 / patient) detected History clinical (46.2% vs 7.1%, p = 0.003) sick sinus syndrome (53.8% 10.7%, 0.005) significantly higher frequency on day approximately twice non-HD (83 episodes [27.7 episodes/day] 41 [10.3 episodes/day]), HD1 most frequent among (Figure 1a). Limited day, observed frequently especially during (30/86 events: 34.9%) five hours (28/86 32.6%) (Fig. 1-b). longer compared time (216 [90, 1066] min 96 [30, 418] min, 0.008). Conclusion In occurred several Careful observation help early diagnosis