Nonreentrant dual atrioventricular nodal tachycardia in a patient with atrioventricular nodal conduction abnormality

Aasbo, Johan D.; Prasertwitayakij, Narawudt; Morady, Fred; Jongnarangsin, Krit

doi:10.1016/j.hrthm.2009.07.008

Cited by 8 publications

(5 citation statements)

References 8 publications

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“…Orciprenaline infusion combined with programmed atrial stimulation from the coronary sinus was used in one patient 36 . Isoproterenol has been also been described to induce DAVNNT in a patient with two slow pathways 44 …”

Section: Resultsmentioning

confidence: 99%

“…One citation was suggested by a reviewer during the manuscript review process. Thus, 48 nonduplicate citations were eligible for inclusion 5–52 . Two articles described the same case so only the English language article was used 9,49 .…”

Section: Resultsmentioning

confidence: 99%

“…The first patient had a protracted attempt at slow pathway ablation, ultimately leading to AV junction ablation 40 . The second patient had only two slow pathways and the need for a pacemaker was accepted by the patient before ablation 44 …”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Dual Atrioventricular Nodal Nonreentrant Tachycardia: A Systematic Review

Wang

2011

Pacing Clinical Electrophis

114

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Dual Atrioventricular Nodal Nonreentrant Tachycardia: A Systematic Review

Wang

2011

Pacing Clinical Electrophis

114

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“…Several cases of double firing or nonreentrant AV nodal tachycardia have been reported, [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] including a case of tachycardia-induced cardiomyopathy. 11 However, our case is unique due to its presentation as a wide complex tachycardia and variable QRS morphologies secondary to possible gap physiology.…”

Section: Discussionmentioning

confidence: 99%

Wide Complex Tachycardia Causing Congestive Heart Failure

Mallick

Concannon

et al. 2011

Pacing Clinical Electrophis

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“…50 These are expressed in the form of ventricular pauses with a consistent AV relationship after the pause.…”

Section: Avnrt Versus Nonreentrant Junctional Tachycardiasmentioning

confidence: 99%

Atrioventricular Nodal Reentrant Tachycardia

2010

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A trioventricular nodal reentrant tachycardia (AVNRT) represents the most common regular supraventricular arrhythmia in humans. 1 The precise anatomic site and nature of the pathways involved have not yet been established, and several attempts to provide a reasonable hypothesis based on anatomic or anisotropic models have been made. 2 There has been considerable evidence that the right and left inferior extensions of the human atrioventricular (AV) node and the atrionodal inputs they facilitate may provide the anatomic substrate of the slow pathway, and a comprehensive model of the tachycardia circuit for all forms of AVNRT based on the concept of atrionodal inputs has been proposed. 2 Still, however, the circuit of AVNRT remains elusive. Recently, time-honored conventional schemes for the diagnosis and classification of the various forms of the arrhythmia have been refuted in part by evolving evidence. Recognition of the various types of AVNRT is important, however, to expedite diagnosis and allow implementation of appropriate ablation therapy without complications. We present an update on AVNRT with a particular emphasis on electrophysiological criteria used for the differential diagnosis of regular, supraventricular tachycardias. ECG PresentationTypically, AVNRT is a narrow-complex tachycardia, ie, QRS duration Ͻ120 ms, unless aberrant conduction, which is usually of the right bundle-branch type, or a previous conduction defect exists. Tachycardia-related ST depression and RR-interval variation may be seen. RR alternans in AVNRT has been attributed to the proposed model of a figure of 8 reentry with continuous crossing over of antegrade activation through an inferior input to the contralateral superior input via the node. 2 In the typical form of AVNRT (slow-fast), abnormal (retrograde) PЈ waves are constantly related to the QRS and in the majority of cases are indiscernible or very close to the QRS complex (RPЈ/RR Ͻ0.5). Thus, PЈ waves are either masked by the QRS complex or seen as a small terminal PЈ wave that is not present during sinus rhythm (Figure 1). In the atypical form of AVNRT (fast-slow), PЈ waves are clearly visible before the QRS, ie, RPЈ/PЈR Ͼ0.75 (Figure 2), denoting a "long RP tachycardia," and are negative in leads II, III, aVF, and V 6 but positive in V 1 . PЈ waves are shallow in the inferior leads in the rare form of anterior fast-slow AVNRT. 3 Although AV dissociation is usually not seen, it can occur because neither the atria or the ventricles are necessary for the reentry circuit. If the tachycardia is initiated by atrial ectopic beats, the initial (ectopic) PЈ wave usually differs from the subsequent (retrograde) PЈ waves (Figure 1).

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Nonreentrant dual atrioventricular nodal tachycardia in a patient with atrioventricular nodal conduction abnormality

Cited by 8 publications

References 8 publications

Dual Atrioventricular Nodal Nonreentrant Tachycardia: A Systematic Review

Dual Atrioventricular Nodal Nonreentrant Tachycardia: A Systematic Review

Wide Complex Tachycardia Causing Congestive Heart Failure

Atrioventricular Nodal Reentrant Tachycardia

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