Electrophysiological studies in four patients with atrial flutter with 1:1 atrioventricular conduction

Few studies have investigated patients with pulmonary hypertension and arrhythmias. Data on electrophysiological studies in these patients are rare. In a retrospective dual-centre design, we analysed data from patients with indications for electrophysiological study. Fifty-five patients with pulmonary hypertension were included (Dana Point Classification: group 1: 14, group 2: 23, group 3: 4, group 4: 8, group 5: 2, and 4 patients with exercised-induced pulmonary hypertension). Clinical data, 6-minute walk distance, laboratory values, and echocardiography were collected/performed. Nonsustained ventricular tachycardia was the most frequent indication (n=15) for an electrophysiological study, followed by atrial flutter (n=14). In summary 36 ablations were performed and 25 of them were successful (atrial flutter 12 of 14 and atrioventricular nodal reentrant tachycardia 4 of 4). Fluoroscopy time was 16±14.4 minutes. Electrophysiological studies in patients with pulmonary hypertension are feasible and safe. Ablation procedures are as effective in these patients as in non-PAH patients with atrial flutter and atrioventricular nodal reentrant tachycardia and should be performed likewise. The prognostic relevance of ventricular stimulations and inducible ventricular tachycardias in these patients is still unclear and requires further investigation.

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Randomized comparison between posterior and septal isthmus line of ablation on atrioventricular conduction in patients with atrial flutter

EP Europace ◽

10.1016/eupace/2.supplement_1.a57-a ◽

2001 ◽

Keyword(s):

Atrial Flutter ◽

Atrioventricular Conduction

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M-mode Diagnosis of Tachyarrhythmia Can be Erroneous Owing to “Pseudo 1:1 Atrioventricular Movement” of the Atrial Wall Adjacent to the Atrioventricular Valve Possibly due to Atrioventricular Constraint: A Case of Neonatal Atrial Flutter With 2:1 Atrioventricular Conduction

Clinical Medicine Insights Cardiology ◽

10.1177/1179546818771700 ◽

2018 ◽

Vol 12 ◽

pp. 117954681877170

Author(s):

Akiko Kawano ◽

Ayumi Oshima ◽

Satoshi Masutani ◽

Akio Ishiguro ◽

Yoichi Iwamoto ◽

...

Keyword(s):

Atrial Flutter ◽

Atrioventricular Conduction ◽

Ventricular Wall ◽

Atrioventricular Valve ◽

Atrial Wall ◽

Fetal Tachyarrhythmia

M-mode echocardiography has been playing an important role in the diagnosis of fetal tachyarrhythmia. We recently encountered a neonatal case of atrial flutter with 2:1 atrioventricular conduction. However, M-mode erroneously indicated 1:1 atrioventricular movement. While the movement of the atrial wall far from the atrioventricular valve was much faster than that of the ventricular wall, the atrial wall adjacent to the atrioventricular valve fully synchronized to that of the ventricular wall. Thus, to avoid this novel pitfall, it would be important to add an additional assessment focusing on the movement of the atrial wall far from the ventricle.

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Congenitally corrected transposition with atrioventricular septal defect

Cardiology in the Young ◽

10.1017/s1047951100007137 ◽

1998 ◽

Vol 8 (4) ◽

pp. 472-478 ◽

Cited By ~ 4

Author(s):

Fause Attie ◽

Pedro Iturralde ◽

Carlos Zabal ◽

Maria Rijlaarsdam ◽

Alfonso Buendia ◽

...

Keyword(s):

Septal Defect ◽

Atrioventricular Septal Defect ◽

Atrioventricular Conduction ◽

Atrioventricular Valve ◽

His Bundle ◽

Electrophysiological Studies ◽

Congenitally Corrected Transposition ◽

Atrial Stimulation ◽

Common Atrioventricular Valve ◽

Corrected Transposition

AbstractWe describe 4 cases of congenitally corrected transposition associated with atrioventricular septal defect, diagnosed by echocardiography and angiocardiography. Two had usual atrial arrangement and two had mirror imaged atrial arrangement. All cases were associated with subpulmonary valvar stenosis. All patients presented with cyanosis and were in sinus rhythm. Atrioventricular septal defect with common atrioventricular junction was easily diagnosed on the basis of a common atrioventricular valve permitting interatrial and interventricular communications. All patients had balanced right and left ventricles. The echocardiographic recognition of the ventricles was based on the presence of the moderator band within the morphologically right ventricle, the characteristics of the apical septal trabeculations, and the shape of the ventricles. Angiocardiographic recognition of the ventricles was achieved on the basis of right and left ven-triculography.In one case with usual atrial arrangement, we recorded two His bundle potentials, one anteriorly and another posteriorly. Atrial stimulation revealed blocked atrioventricular conduction at the level of the pos terior bundle, and normal atrioventricular conduction through the anterior bundle. In both cases with atrial mirror-imagery, only a posterior His bundle potential was found, with normal atrioventricular conduction revealed by atrial stimulationThe clinical course with this combination depends on the other lesions present in addition to the common atrioventricular valve. Our electrophysiological studies show that the conduction system in presence of a common atrioventricular valve is as expected for congenitally corrected transposition with two atrioventric ular valves.

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