scholarly journals Left Atrial Appendage Ostial Stenosis in a Patient with Atrial Flutter and Asymmetric Septal Hypertrophy

2017 ◽  
Vol 7 (5) ◽  
Author(s):  
Jin Oh Na
Keyword(s):  
Atrial Flutter ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Atrial Appendage ◽  
Asymmetric Septal Hypertrophy ◽  
Septal Hypertrophy

scholarly journals Inverse Correlation Between Left Atrial Appendage Function and CHA2DS2-VASc Score in Patients with Atrial Flutter

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Mei-Yao Wu ◽  
Yen-Nien Lin ◽  
Hung-Pin Wu ◽  
Ying-Ying Huang ◽  
Jan-Yow Chen ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Ejection Fraction ◽  
Sinus Rhythm ◽  
Transesophageal Echocardiography ◽  
Atrial Flutter ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Inverse Correlation ◽  
Atrial Appendage ◽  
Inclusion Criteria

AbstractImpaired left atrial appendage ejection fraction (LAA-EF) and peak LAA flow velocity (LAA-FV) are associated with high thromboembolic risks in patients with atrial fibrillation (AF). Herein, we examined LAA function among patients with atrial flutter (AFL) stratified by the CHA2DS2-VASc score using transesophageal echocardiography (TEE). Of 231 consecutive patients with typical AFL, 84 who fulfilled the inclusion criteria were enrolled. Among them, 57 had ongoing AFL and were divided into the isolated AFL (n = 38) and AFL with paroxysmal AF (PAF) (n = 19) groups, depending on whether they had sporadic AF before TEE. The remaining 27 patients with spontaneous sinus rhythm during TEE were designated as controls. Both the LAA-FV (31.9 cm/s vs. 51.5 cm/s, P = 0.004) and LAA-EF (28.4% vs. 36.5%, P = 0.024) measured during AFL were significantly lower in the AFL + PAF group than in the isolated AFL group. Significant inverse correlations between the CHA2DS2-VASc score and LAA-EF were identified in the AFL (P = 0.008) and AFL + PAF (P = 0.032) groups. We observed progressive LAA dysfunction in patients with AFL + PAF compared with that in patients with isolated AFL, and the LAA-EF was inversely correlated with the CHA2DS2-VASc score in these patients. Our findings may have implications on the application of thromboprophylactic therapy in patients with AFL.

A Stunning Left Atrial Appendage Thrombus

Cardiology ◽  
2016 ◽  
Vol 134 (4) ◽  
pp. 394-397
Author(s):  
Sajid Ali ◽  
Justin Ugwu ◽  
Yousuf Kanjwal
Keyword(s):  
Atrial Fibrillation ◽  
Sinus Rhythm ◽  
Atrial Flutter ◽  
Pulmonary Vein ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Thrombus Formation ◽  
Atrial Appendage ◽  
Transesophageal Echocardiogram ◽  
Left Atrial Appendage Thrombus

Background: Left atrial appendage thrombus formation is a known major complication of atrial fibrillation and atrial flutter which increases the risk of embolism and stroke. This risk of thrombosis is greatly increased with a lack of anticoagulation. After conversion to a normal sinus rhythm in these arrhythmias, the risk of thrombus formation in the left atrium persists through a phenomenon termed atrial myocardial stunning. Case: We present the case of a patient who previously underwent successful pulmonary vein isolation and was found to be in typical isthmus-dependent atrial flutter with a questionable recurrence of atrial fibrillation. The decision was made to return for atrial flutter ablation and for evaluation of prior pulmonary vein isolation. Initially, a transesophageal echocardiogram showed a normal ejection fraction, biatrial enlargement and no left atrial appendage thrombus. Ablation of the cavotricuspid isthmus was successfully accomplished with documented bidirectional block. A transesophageal echocardiogram probe was still in place prior to planned transseptal puncture for the evaluation of pulmonary veins. A large thrombus was now observed filling the left atrial appendage. Conclusion and Objective: Atrial stunning is a transient atrial contractile dysfunction that occurs whether sinus rhythm is restored spontaneously, electrically, pharmacologically or by ablation. We know after conversion that there is higher propensity to increased spontaneous echogenic contrast and decreased velocities; however, we do not have documented knowledge of exactly how soon after the conversion to a sinus rhythm a thrombus may be seen. We demonstrate a case of acute left atrial appendage thrombus formation immediately following the successful ablation of isthmus-dependent atrial flutter. Our report validates the belief that strategies of not interrupting anticoagulation prior to the conversion of these arrhythmias should be implemented.

Rotor in a remnant of the left atrial appendage driving left atrial flutter

Heart Rhythm ◽  
2005 ◽  
Vol 2 (5) ◽  
pp. S328
Author(s):  
Vanita Arora ◽  
David Krum ◽  
Masood Akhtar ◽  
Jasbir Sra
Keyword(s):  
Atrial Flutter ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Atrial Appendage

Does left atrial appendage “stunning” occur following conversion of atrial flutter?

1995 ◽  
Vol 8 (3) ◽  
pp. 367 ◽  
Author(s):  
Richard A Grimm ◽  
Allen L Klein ◽  
Dominic Y Leung ◽  
Leonardo Rodriguez ◽  
William J Stewart ◽  
...  
Keyword(s):  
Atrial Flutter ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Atrial Appendage

scholarly journals Key Role of Left Atrial Appendage during Redo Ablation in a Case of Long-Standing Persistent Atrial Fibrillation

2020 ◽  
Vol 2020 ◽  
pp. 1-4
Author(s):  
Shaohui Wu ◽  
Guangchen Zou ◽  
Xu Liu ◽  
Weifeng Jiang ◽  
Mu Qin ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Atrial Flutter ◽  
Left Atrial ◽  
Left Atrial Appendage ◽  
Persistent Atrial Fibrillation ◽  
The Other ◽  
Atrial Appendage ◽  
Electrical Isolation ◽  
Rare Phenomenon

Extrapulmonary vein focal sources have been recognized as the source of atrial fibrillation in some cases, and empiric electric isolation of the left atrial appendage has been proposed for long-standing persistent atrial fibrillation by some. Here, we present a case of redo ablation of long-standing persistent atrial fibrillation in which the left atrial appendage played a key role in maintaining AF during ablation, and atrial fibrillation was terminated by electrical isolation of the LAA. During the ablation, a rare phenomenon of half of the atria in atrial fibrillation while the other half of the atria in atrial flutter was seen.

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