Accessory appendages of the left atrium as seen during 64-slice coronary CT angiography

Duerinckx, André J.; Vanovermeire, Olivier

doi:10.1007/s10554-007-9240-x

Cited by 34 publications

(22 citation statements)

References 35 publications

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“…Our findings do not show any association between diverticula and CVA or TIA. Consistent with several prior studies, our image analysis did not show evidence of thrombi within accessory appendages, diverticula or septal pouches [6] [7] [9] [12]. Nevertheless, given the high prevalence of LAAA, consideration of evaluation for thrombi within LAAA prior to electrophysiologic procedures may be useful for clinical management and risk reduction.…”

Section: Discussionsupporting

confidence: 88%

Clinical Significance of Left Atrial Anatomic Abnormalities Identified by Cardiac Computed Tomography

Vehian

Choi²,

Rekhi³

et al. 2015

ACT

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Section: Discussionsupporting

confidence: 88%

Clinical Significance of Left Atrial Anatomic Abnormalities Identified by Cardiac Computed Tomography

Vehian

Choi²,

Rekhi³

et al. 2015

ACT

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“…Smooth and communicating diverticula are suggested to create a potential "loop" to trigger a transmission disorder (8,9,11,12). As coronary CTA is problematic in patients with disordered cardiac rhythms such as atrial fibrillation (13), these patients were excluded from our study, and thus the relationship between atrial fibrillation and the frequency of atrial diverticula could not be evaluated.…”

Section: Discussionmentioning

confidence: 99%

Left atrial diverticula incidence during coronary CT angiography examination

İncedayı

Öztürk²,

Sönmez³

et al. 2012

Diagn Interv Radiol

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“…1 Recently, accessory appendages of the LA have been described with a prevalence of between 10% and 28%. 2 The majority are located along the anterior LA wall adjacent to the ostium of the right superior PV. Histopathological analysis of such accessory appendages has shown that they contain trabeculated myocardium with the same wall structure as the surrounding myocardium.…”

mentioning

confidence: 99%

Ectopic Focus in an Accessory Left Atrial Appendage

et al. 2009

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A 65-year-old man with symptomatic atrial fibrillation refractory to medical therapy was referred for repeat pulmonary vein (PV) isolation. Clinical symptoms included paroxysmal palpitations once to twice per week with associated light-headedness and chest pain. Initial PV isolation had been performed 6 months earlier without cessation of atrial fibrillation despite combined medical therapy with oral flecainide and bisoprolol. His past medical history was significant for hypertension, and in his family history, 1 brother had experienced a stroke at the age of 57 years. Physical examination, ECG, chest radiography, and coronary angiography were normal. Holter 24-hour ECG recordings revealed occasional atrial premature beats and paroxysmal atrial tachycardia.A magnetic resonance imaging study of the patient's PVs and left atrium (LA) was performed before the repeat radiofrequency ablation. Images were acquired with a 1.5-T whole-body magnetic resonance system (Siemens Avanti, Siemens Medical Solutions, Forcheim, Germany) with an 8-element cardiac synergy coil for radiofrequency signal reception. First-pass breath-hold 3-dimensional contrastenhanced magnetic resonance angiography of the PV was obtained after pump injection (3 mL/s) of 15 mmol of gadobutrol (Gadovist, Bayer Schering Pharma, Berlin, Germany), followed immediately by a 15-mL saline flush (data acquisition began after a delay determined by a small timing bolus given before the 3-dimensional acquisition). Breath holding was performed at end-inspiration. A spoiled 3-dimensional gradient-echo sequence with the following parameters was used: Repetition time 3.19 ms, echo time 1.03 ms, flip angle 25°, 120 slices, slice thickness 1.6 mm, field of view 470 mm, matrix 227ϫ384. Multiplanar reformations demonstrated a normal configuration of the PVs with no evidence of PV stenosis. An accessory LA appendage was identified on the anterior LA wall, 9 mm medial to the ostium of the right superior PV (Figure 1). The orifice of the accessory appendage measured 2 cm in maximal diameter and 1.5 cm in depth.Electrophysiological mapping was performed via right femoral access. A duodecapolar catheter (Staplemapr, Medtronic, Minneapolis, Minn) was placed within the coronary sinus to record LA electrical activity and for pacing. Figure 1. A, Axial-oblique magnetic resonance image of the LA showed an accessory appendage (straight arrow) arising from the anterior wall. The appendage was clearly separated from the LA appendage (curved arrow). B, Sagittaloblique magnetic resonance image confirmed that the accessory appendage arose from the superior portion of the anterior LA wall, and extended into the transverse pericardial recess. AO indicates aorta; PA, pulmonary artery. From the Departments of Radiology

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Accessory appendages of the left atrium as seen during 64-slice coronary CT angiography

Abstract: Accessory left atrial appendages were visualized in 10% of 166 patients during 64-slice coronary CT angiography.

Cited by 34 publications

References 35 publications

Clinical Significance of Left Atrial Anatomic Abnormalities Identified by Cardiac Computed Tomography

Clinical Significance of Left Atrial Anatomic Abnormalities Identified by Cardiac Computed Tomography

Left atrial diverticula incidence during coronary CT angiography examination

Ectopic Focus in an Accessory Left Atrial Appendage

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