Atrial Electrograms(심방 전자도)란 무엇입니까?
Atrial Electrograms 심방 전자도 - Atrial electrograms are often used to gain under-standing on the development of atrial fibrillation (AF). [1] We implemented an unsupervised classification to identify clusters of atrial electrograms (AEGs) with similar patterns, which were then validated by AEG-derived markers. [2] The dominant frequency (DF) of atrial electrograms during atrial fibrillation (AF) is believed to primarily reflect local activation. [3] However, atrial electrograms and optical mapping revealed that electrical activity was limited to the sino-atrial node area with no electrical conduction into the atrial myocardium beyond. [4] Atrial electrograms were recorded from 96 epicardial electrodes covering Bachmann's bundle and atrial appendages. [5] We investigated the spatiotemporal change of atrial electrograms in the area surrounding the site of single standardized pulse of RF energy. [6] “Disbelievers,” on the other hand, refute existence of an UCFPbasedupon: (1) ability to entrainAVNRT from the coronary sinus with orthodromic capture of atrial electrograms at the His bundle region (indicating separate entrance and exit atrial sites into the circuit and not a single UCFP), (2) heterogeneous retrograde atrial activation patterns during AVNRT (not explainable by a single UCFP), and (3) lack of histological/anatomical data of an insulated tract (or “transitional cell envelope”) connecting FP and SP (both of which are believed to be anatomically discrete atrio-nodal pathways containing transitional cells linking the compact AV node to atrial myocardium). [7] Although such methods have proven to add artificial fractionation to intra-atrial electrograms (EGMs), they are still frequently used. [8] Diagnosis and treatment of atrial fibrillation can benefit from various signal processing approaches employed on atrial electrograms. [9] Many techniques have been developed to cancel the ventricular interference in atrial electrograms (AEG) during atrial fibrillation. [10]심방 전기도는 심방 세동(AF)의 발달에 대한 이해를 얻기 위해 자주 사용됩니다. [1] 우리는 유사한 패턴을 가진 심방 전기도(AEG) 클러스터를 식별하기 위해 감독되지 않은 분류를 구현한 다음 AEG 파생 마커에 의해 검증되었습니다. [2] 심방 세동(AF) 중 심방 전기도의 지배적 주파수(DF)는 주로 국소 활성화를 반영하는 것으로 여겨집니다. [3] 그러나 심방 전기도 및 광학 매핑은 전기적 활동이 심방 심근으로의 전기 전도 없이 동심방 결절 영역으로 제한되었음을 보여주었습니다. [4] Bachmann의 묶음과 심방 부속기를 덮고 있는 96개의 심외막 전극에서 심방 전기도를 기록했습니다. [5] 우리는 RF 에너지의 단일 표준화 펄스 부위를 둘러싼 영역에서 심방 전기도의 시공간적 변화를 조사했습니다. [6] 반면에 "불신자들"은 UCFP 기반의 존재를 논박합니다. 단일 UCFP), (2) AVNRT 중 이질적인 역행 심방 활성화 패턴(단일 UCFP로 설명할 수 없음), (3) FP와 SP를 연결하는 절연된 관(또는 "전환 세포 외피")의 조직학적/해부학적 데이터 부족( 둘 다 조밀한 방실 결절을 심방 심근에 연결하는 이행 세포를 포함하는 해부학적으로 별개의 방-결절 경로로 믿어집니다. [7] 이러한 방법은 심방 내 전기도(EGM)에 인공 분획을 추가하는 것으로 입증되었지만 여전히 자주 사용됩니다. [8] 심방 세동의 진단 및 치료는 심방 전기도에 사용되는 다양한 신호 처리 접근법의 이점을 얻을 수 있습니다. [9] 심방 세동 동안 심방 전기도(AEG)에서 심실 간섭을 제거하기 위해 많은 기술이 개발되었습니다. [10]
circumferential pulmonary vein
Then the low-dose-ibutilide-facilitated catheter ablation was performed and atrial maintenance substrate was categorized as weak, mild, and strong, based on the response to circumferential pulmonary vein isolation or complex fractionated atrial electrograms ablation. [1] Procedural endpoints were circumferential pulmonary vein ablation for atrial fibrillation with pulmonary vein trigger, and target ablation or bidirectional block of lines and disappearance of complex fractionated atrial electrograms for atrial fibrillation with clear and unclear non-pulmonary vein triggers, respectively. [2] Procedure endpoints were defined as circumferential pulmonary vein ablation (CPVA) for paroxysmal AF, CPVA plus bidirectional block of lines, and disappearance of complex fractionated atrial electrograms for non-paroxysmal patients in both groups. [3]그런 다음 저용량 ibutilide 촉진 카테터 절제술을 시행하였고, 심방 유지 기질은 원주 폐정맥 분리 또는 복합 분획 심방 전기도 절제술에 대한 반응에 따라 약함, 경증, 강함으로 분류하였다. [1] 절차적 종료점은 폐정맥 방아쇠를 사용한 심방세동을 위한 원주방향 폐정맥 절제, 각각 명확하고 불분명한 비폐정맥 방아쇠를 가진 심방세동에 대한 표적 절제 또는 선의 양방향 차단 및 복잡한 분할 심방 전기도의 소실이었습니다. [2] nan [3]
pulmonary vein isolation 폐정맥 격리
Following standard pre-processing, ECG signals were divided into 10-s epochs and labeled according to their temporal placement: pre-PVI (baseline), dur-PVI (during pulmonary vein isolation), and post-PVI (during complex-fractionated atrial electrograms and linear ablation). [1] The first 27 patients were subjected to pulmonary vein isolation and complex fractionated atrial electrograms (CFAE) ablation (group 1) and the last 40 patients were subjected to a tailored approach guided by voltage map areas and CFAE (group 2). [2] The ablation strategy included pulmonary vein isolation in all patients and ablation of complex fractionated atrial electrograms or subsequent atrial tachycardias (AT) if appropriate. [3]표준 전처리 후, ECG 신호는 10초 에포크(epoch)로 나뉘고 시간적 배치에 따라 레이블이 지정되었습니다. 전기도 및 선형 절제). [1] 처음 27명의 환자는 폐정맥 분리 및 복합 분획 심방 전기도(CFAE) 절제술(그룹 1)을 받았고 마지막 40명의 환자는 전압 지도 영역 및 CFAE(그룹 2)로 안내되는 맞춤형 접근 방식을 받았습니다. [2] nan [3]
Fractionated Atrial Electrograms 분획 심방 전기도
Electrogram characterization into categories of complex fractionated atrial electrograms by Ensite Precision was subjected to similar analysis. [1] In patients with early persistent AF (17%) additional ablation of complex fractionated atrial electrograms (CFAE) was performed. [2] Following standard pre-processing, ECG signals were divided into 10-s epochs and labeled according to their temporal placement: pre-PVI (baseline), dur-PVI (during pulmonary vein isolation), and post-PVI (during complex-fractionated atrial electrograms and linear ablation). [3] The first 27 patients were subjected to pulmonary vein isolation and complex fractionated atrial electrograms (CFAE) ablation (group 1) and the last 40 patients were subjected to a tailored approach guided by voltage map areas and CFAE (group 2). [4] Results: With prolonged stimulation, the duration of AF was prolonged, complex fractionated atrial electrograms(CFAEs) in LA and was increased gradually, PVs had more CFAEs than LA all the time. [5] Additional complex fractionated atrial electrograms (CFAEs) were targeted in 19. [6] The ablation strategy included pulmonary vein isolation in all patients and ablation of complex fractionated atrial electrograms or subsequent atrial tachycardias (AT) if appropriate. [7] We assessed areas of short cycle length (SCL) (defined as 120 to 250ms), and their relationships with complex fractionated atrial electrograms (CFAE), and low-voltage zones (from 0. [8] As an example, fractionated atrial electrograms, which are signals with multiple random deflections obtained from the endocardial heart surface with a standard ablation catheter during electrophysiologic study, can be utilized to demonstrate the new algorithm efficacy. [9] Delayed discrete or fractionated atrial electrograms were recorded more frequently at sites of successful cryoablation than at AVB sites (78% vs. [10] Ablation of complex fractionated atrial electrograms (CFAEs) is currently classified as class IIb, However, the concept of length of potential was different between the current CFAE module of CARTO system and the definition of CFAE potential. [11] To improve the clinical outcome in patients with persistent AF, extensive ablations have been adopted, includ‐ ing, ablation of complex fractionated atrial electrograms (CFAE), multiple linear lesions, posterior left atrial (LA) box isolation, gangli‐ onated plexi ablation, rotor/driver ablation, and ablation of low‐volt‐ age areas (LVA). [12] Then the low-dose-ibutilide-facilitated catheter ablation was performed and atrial maintenance substrate was categorized as weak, mild, and strong, based on the response to circumferential pulmonary vein isolation or complex fractionated atrial electrograms ablation. [13] Procedural endpoints were circumferential pulmonary vein ablation for atrial fibrillation with pulmonary vein trigger, and target ablation or bidirectional block of lines and disappearance of complex fractionated atrial electrograms for atrial fibrillation with clear and unclear non-pulmonary vein triggers, respectively. [14] 3 More extensive ablation strategies, including ablation of complex fractionated atrial electrograms, linear lesions, and rotors, have been performed with the aim of improving clinical outcome. [15] Potential usage of fractionated atrial electrograms by using visual analysis was previously demonstrated during AF and sinus rhythm [1–3]. [16] 1 However, PVI is insufficient as a lone strategy for persistent AF, and additional substrate modification may be needed including the cre‐ ation of linear lesions in the left atrium and focal ablation to elim‐ inate atrial signals that demonstrate complex fractionated atrial electrograms (CFAEs) during AF and their combination. [17] We performed this study to evaluate the influence of age on electric remodeling as assessed by the extent of complex fractionated atrial electrograms (CFAEs) in the LA. [18] Extensive encircling pulmonary vein isolation plus ablation of complex fractionated atrial electrograms was performed. [19] BACKGROUND AND OBJECTIVE Complex fractionated atrial electrograms (CFAE) may contain information concerning the electrophysiological substrate of atrial fibrillation (AF); therefore they are of interest to guide catheter ablation treatment of AF. [20] This encompasses the risk of losing or oversensing activations in the case of complex fractionated atrial electrograms (CFAEs). [21] Procedure endpoints were defined as circumferential pulmonary vein ablation (CPVA) for paroxysmal AF, CPVA plus bidirectional block of lines, and disappearance of complex fractionated atrial electrograms for non-paroxysmal patients in both groups. [22]Ensite Precision에 의한 복잡한 분할 심방 전기도의 범주로의 전기도 특성화도 유사한 분석을 받았습니다. [1] 초기 지속 AF(17%)가 있는 환자에서 복합 분획 심방 전기도(CFAE)의 추가 절제를 수행했습니다. [2] 표준 전처리 후, ECG 신호는 10초 에포크(epoch)로 나뉘고 시간적 배치에 따라 레이블이 지정되었습니다. 전기도 및 선형 절제). [3] 처음 27명의 환자는 폐정맥 분리 및 복합 분획 심방 전기도(CFAE) 절제술(그룹 1)을 받았고 마지막 40명의 환자는 전압 지도 영역 및 CFAE(그룹 2)로 안내되는 맞춤형 접근 방식을 받았습니다. [4] nan [5] nan [6] nan [7] nan [8] nan [9] nan [10] CFAE(complex fractionated atrial electrograms)의 절제는 현재 클래스 IIb로 분류되지만 현재 CARTO 시스템의 CFAE 모듈과 CFAE 전위의 정의 간에 전위 길이의 개념이 다릅니다. [11] 지속적인 AF가 있는 환자의 임상 결과를 개선하기 위해 CFAE(complex fractionated atrial electrograms)의 절제, 다중 선형 병변, 좌심방(LA) 상자 분리, 신경절 신경총 절제, 로터/드라이버 절제 및 저전압 영역(LVA) 절제. [12] 그런 다음 저용량 ibutilide 촉진 카테터 절제술을 시행하였고, 심방 유지 기질은 원주 폐정맥 분리 또는 복합 분획 심방 전기도 절제술에 대한 반응에 따라 약함, 경증, 강함으로 분류하였다. [13] 절차적 종료점은 폐정맥 방아쇠를 사용한 심방세동을 위한 원주방향 폐정맥 절제, 각각 명확하고 불분명한 비폐정맥 방아쇠를 가진 심방세동에 대한 표적 절제 또는 선의 양방향 차단 및 복잡한 분할 심방 전기도의 소실이었습니다. [14] nan [15] nan [16] nan [17] nan [18] nan [19] nan [20] nan [21] nan [22]
Local Atrial Electrograms
Logistic regression analysis showed fractionated electrograms, the magnitudes of the local atrial electrograms and a/V ratio were critical factors for successful ablation. [1] The use of the SensoLas light sensor (SLLS; LasCor GmbH, Taufkirchen, Germany) and focused local atrial electrograms (LEGs) were tested as means for the assessment of thermal effects on the esophagus during laser catheter ablation. [2]로지스틱 회귀 분석은 분획된 전기도, 국소 심방 전기도의 크기 및 a/V 비율이 성공적인 절제에 중요한 요소임을 보여주었습니다. [1] nan [2]
atrial electrograms recorded
BACKGROUND Atrial electrograms recorded from the epicardium provide an important tool for studying the initiation, perpetuation, and treatment of AF. [1] BACKGROUND The left atrial myocardium (LAM) and coronary sinus (CS) musculature (CSM) generate atrial electrograms recorded inside the CS (AECSs). [2]배경 심외막에서 기록된 심방 전기도는 AF의 시작, 지속 및 치료를 연구하는 중요한 도구를 제공합니다. [1] nan [2]