EvaluAtion of Predictive Value of Multisite Intracardiac EchoCardiography During Imaging of Structure and funCTION of Left Atrial Appendage in Comparison to Transesophageal Echocardiography (ActionICE)
Recruitment status was: Recruiting
This is a 2- component, single center study, witch aims to evaluate the efficacy of multisite intracardiac echocardiography (mICE) imaging of left atrial appendage (LAA) and in detecting thrombus located in LAA as compared to transesophageal echocardiography (TEE). The study group will consist of patients eligible for atrial fibrillation (AF) ablation procedure (Component I) or cardioversion (Component II).
First component will enroll 100 patients; these patients will undergo clinically indicated TEE & cardiac catheterization procedures with ICE(AF ablation). Second component will enroll 15-20 patients with AF or atrial flutter in whom a thrombus in LAA was detected by TEE prior to electrical cardioversion. The ICE probe will be located in multiple positions in the right atrium (RA), coronary sinus (CS), pulmonary artery (PA), right ventricular outflow tract (RVOT) and esophagus. This will enable the investigators to compare sensitivity and specificity of mICE and TEE.
This study will examine two hypotheses in AF patients undergoing invasive cardiac procedures:
Hypothesis 1: That ICE has comparable efficacy to TEE in visualization of LAA from multiple positions (RA,CS,PA,RVOT and esophagus ). This will be evaluated during the component I of the study.
Hypothesis 2: That ICE can identify low risk patients, CHADS Score < 2,0 in whom immediate cardioversion during the procedure is as safe as based on conventional strategy.
|Atrial Fibrillation||Device: Intra-Cardiac Echocardiography guided atrial fibrillation ablation||Phase 4|
|Study Design:||Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Single Blind (Investigator)
Primary Purpose: Diagnostic
|Official Title:||EvaluAtion of Predictive Value of Multisite Intracardiac EchoCardiography During Imaging of Structure and funCTION of Left Atrial Appendage in Comparison to Transesophageal Echocardiography|
- Predictive value of ICE compared to TEE in visualisation of morphology and thrombus in LAA. [ Time Frame: intraoperative - up to six hours ]Predictive value of ICE compared to TEE in visualization of morphology (area and volume of LAA) and function of LAA (emptying velocity and ejection fraction of LAA) - offline analyses will be conducted. Quality of LAA imaging will be assessed using 5-grade scale, and compared to that obtained by TEE. Grade 0 means unacceptable quality wheras grade 5 means exellent view of LAA. Exclusion of existence of thrombus in LAA by mICE will enable electrical cardioversion of AF during AF ablation procedure. That will by assessed using binary scale - YES or NO.
|Study Start Date:||June 2011|
|Estimated Study Completion Date:||March 2013|
|Estimated Primary Completion Date:||February 2013 (Final data collection date for primary outcome measure)|
Device: Intra-Cardiac Echocardiography guided atrial fibrillation ablation
Please refer to this study by its ClinicalTrials.gov identifier: NCT01371279
|Contact: Piotr Kulakowski, Prof.||firstname.lastname@example.org|
|Contact: Sebastian M Stec, PhDemail@example.com|
|Department of Cardiology, Postgraduate Medical School, Grochowski Hospital, Grenadierow 51/59||Recruiting|
|Warsaw, Poland, 04 073|
|Contact: Sebastian M Stec, PhD 0048512221279 firstname.lastname@example.org|
|Contact: Jakub Baran, MD 0048697604544 email@example.com|
|Sub-Investigator: Jakub Baran, MD|
|Principal Investigator: Sebastian M Stec, PhD|