Catheter ablation of sinoatrial node reentrant tachycardia

Sanders, William E.; Sorrentino, Robert; Greenfield, Ruth Ann; Shenasa, Hossein; Hamer, Mark; Wharton, J. Marcus

doi:10.1016/0735-1097(94)90639-4

Cited by 62 publications

(24 citation statements)

References 24 publications

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“…30) The Pwave morphology and the endocardial activation sequence during the tachycardia are identical or similar to those during sinus rhythm. Whether this AT truly originates from the sinus node or adjacent tissue is still controversial.…”

Section: )mentioning

confidence: 76%

Focal Atrial Tachycardia

Higa

Chen

2006

J Arrhythmia

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Over the past decade, most of the electrophysiologic mechanisms in patients with focal atrial tachycardias (ATs) have been well studied. Recently, advanced mapping systems have revealed the precise propagation, and the relationship between non-radial propagation pattern and substrate property of focal AT. Non-radial activation pattern of focal AT may mimic macrorentrant AT and may lead to inappropriate ablation strategy. In this review, we will focus on the current state of mapping and ablation techniques, safety, and efficacy associated with the catheter ablation for focal AT. (J Arrhythmia 2006; 22: 132-148)

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Section: )mentioning

confidence: 76%

Focal Atrial Tachycardia

Higa

Chen

2006

J Arrhythmia

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“…The Ao-Po interval was 28 ms at the unsuccessful site and 30 ms at the successful site. At both sites, the unipolar electrogram showed a QS pat-Vol 48 No 3 tern. The mapping characteristics of SART are shown in Table I.…”

Section: Resultsmentioning

confidence: 99%

Atrial Unipolar Potential in Radiofrequency Catheter Ablation of Atrial Tachycardia

et al. 2007

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SUMMARYWe conducted this study to verify the efficacy of atrial unipolar potentialfor for ablation of atrial tachycardia. The morphology of atrial unipolar potential at the successful and the best unsuccessful ablation sites was analyzed in 35 patients with atrial tachycardia (sino-atrial reentrant tachycardia (SART) 15, adenosine-sensitive atrial reentrant tachycardia near the His bundle (HAT) 10, and non-reentrant ectopic atrial tachycardia (EAT) 10). The usefulness of atrial unipolar potential was compared with the Ao-Po interval. The incidences of QS pattern at the successful and the best unsuccessful sites were (successful versus unsuccessful; P, respectively) 93 versus 55%; P = 0.20 in SART, 90 versus 0%; P = 0.0001 in HAT, and 90 versus 10%; P = 0.001 in EAT. The mean Ao-Po intervals at the successful and the best unsuccessful sites were 35 versus 30 ms; NS in SART, 48 versus 45 ms; NS in HAT, and 58 versus 50 ms; NS in EAT. A significantly higher incidence of transient success at QS pattern sites was observed in SART than in HAT or EAT (n = 2 ± 0.8 versus 0.2 ± 0.1 and 0.1 ± 0.1, P = 0.0005), and each transient site and final success site in SART was distributed linearly. The sensitivity and specificity of QS patterns with regard to the determination of appropriate target sites were 0.91 and 0.45 in SART, 0.9 and 1.0 in HAT, and 0.88 and 0.88 in EAT, respectively. In ablation of HAT and EAT, the QS pattern is very useful and should be given high priority when determining the optimum target site. In SART, the ablation success was often achieved by multiple, linear RF delivery near perinodal tissue, and the QS pattern could be a candidate for the optimum target site. (Int Heart J 2007; 48: 313-322)

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“…This 2.0% incidence is consistent with incidences reported by Josephson (3%), 3 Wellens (1.8%) 4 and Sanders et al (3.2%). 5 In the Gomes et al series, 11 patients had SART, and 9 of these had organic heart disease, so it was concluded that SART is frequently associated with organic heart disease. 6 In our study there was only 1 patient with structural heart disease.…”

Section: Clinical Features Of Sartmentioning

confidence: 99%