Atrial fibrillation Atrial Fibrillation, Left Atrial Appendage, Left Atrial Appendage Thrombus, Transesophageal Echocardiography
Conditions
Interventions
none
Sponsors
Machino Tomoko
Eligibility
Inclusion criteria
Inclusion criteria: Participants must meet all of the following conditions: 1. Patients with atrial fibrillation (valvular or non-valvular) who are being followed at the University of Tsukuba Hospital. 2. Patients scheduled to undergo transesophageal echocardiography (TEE) either for pre-procedural assessment of left atrial appendage morphology and thrombus status prior to catheter ablation, percutaneous left atrial appendage closure, or electrical cardioversion for atrial fibrillation, or for suspected cardiogenic embolism requiring evaluation of left atrial appendage thrombus. 3. Male or female patients aged 20 years or older. 4. Patients who have received a full explanation of the study and have voluntarily provided written informed consent with adequate understanding.
Exclusion criteria
Exclusion criteria: Participants who meet any of the following conditions will be excluded from the study: 1. Patients with a prior history of left atrial appendage closure or surgical excision of the left atrial appendage. 2. Patients in whom a definite thrombus is identified in the left atrium or left atrial appendage on transesophageal echocardiography. 3. Patients deemed inappropriate for study participation at the discretion of the principal or co-investigator.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Severity of left atrial appendage blood stasis in each position (left lateral decubitus, supine, right lateral decubitus, and semi-sitting position). | — |
Secondary
| Measure | Time frame |
|---|---|
| The following items on each position (left lateral decubitus, supine, right lateral decubitus, and semi-sitting position). 1. Accuracy of left atrial appendage (LAA) visualization. 2. Hemodynamic and functional parameters of the LAA (LAA flow velocity, LAA wall motion velocity, and LAA ejection fraction). | — |
Contacts
Public ContactTomoko Machino
Department of Cardiology, Institute of Medicine, University of Tsukuba
Outcome results
None listed