Key result
Direct intracardiac ultrasound imaging with the probe inserted inside the left atrial appendage successfully assessed LAA morphology and function, excluding thrombus presence.
Why the study?
Can direct intracardiac echocardiography from inside the left atrial appendage assess morphology and function during atrial fibrillation ablation?
Case Report (n=1)
Can direct intracardiac echocardiography from inside the left atrial appendage assess morphology and function during atrial fibrillation ablation?
Direct intracardiac echocardiography from inside the left atrial appendage is feasible for assessing morphology and excluding thrombus during atrial fibrillation ablation.
Answers are grounded in this paper and cite their sources.
May aid LAA thrombus differentiation on ICE during AF ablation; leaves open prospective validation before routine adoption.
We present the case of a 59-year-old patient with persistent atrial fibrillation, referred for atrial fibrillation ablation. The procedure was performed with the help of NAVX 3D mapping system (Saint Jude Medical) and iLAB Ultra ICE Plus ultrasound imaging catheter (Boston Scientific). The catheter permits cross-sectional images perpendicular to catheter's long axis. From inside left atrial appendage (LAA) looks trabeculated, due to pectinate muscles running parallel to each other. The presence of a thrombus was excluded from the appendage. The contractility of LAA was also assessed using multiple frames recorded on videotape. Our case demonstrates that LAA's morphology and function can be directly assessed by intracardiac ultrasound with the probe inserted inside the appendage.
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Cismaru et al. (2018) conducted a case report in Persistent atrial fibrillation (n=1). Direct intracardiac echocardiography (ICE) imaging from inside the left atrial appendage was evaluated on Assessment of LAA morphology and function. Direct intracardiac ultrasound imaging with the probe inserted inside the left atrial appendage successfully assessed LAA morphology and function, excluding thrombus presence.
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