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1.
RELAMPA, Rev. Lat.-Am. Marcapasso Arritm ; 28(4): 171-174, out.-dez. 2015. ilus
Article in Portuguese | LILACS | ID: lil-788754

ABSTRACT

Na taquicardia por reentrada nodal atrioventricular, a necessidade do átrio para a manutenção da taquicardia é controverso. Descrevemos um caso de fibrilação atrial ocorrendo durante taquicardia por reentrada nodal atrioventricular sem afetar o ciclo da arritmia, e discutimos as evidências favorecendo a presença de umavia comum superior.


In Atrioventricular Nodal Reentry Tachycardia the requirement of the atrium for the maintenance oftachycardia is controversial. We describe a case of atrial fibrillation that occurred during Atrioventricular Nodal Reentry Tachycardia without affecting the arrhythmia cycle, and discuss the evidences favoring the presence ofan upper common pathway.


Subject(s)
Humans , Male , Adult , Atrial Fibrillation/complications , Atrial Fibrillation/diagnosis , Tachycardia, Supraventricular/complications , Tachycardia, Supraventricular/diagnosis , Tachycardia, Atrioventricular Nodal Reentry/complications , Tachycardia, Atrioventricular Nodal Reentry/diagnosis , Catheters , Heart Atria , Heart Ventricles
2.
Rev. SOCERJ ; 19(4): 287-291, jul.-ago. 2006. ilus, graf
Article in Portuguese | LILACS | ID: lil-438641

ABSTRACT

Objetivo: Analisar os resultados e as complicações em uma série de casos de ablação por radiofreqüência de taquicardia atrioventricular reentrante nodal (TAVN). Métodos: Foram estudados, retrospectivamente, 1428 pacientes submetidos à ablação por radiofreqüência do circuito da TAVN. Todos os pacientes apresentavam taquicardia clínica sintomática repetitiva e indução sustentada ou não-sustentada de TAVN no estudo eletrofisiológico. O procedimento utilizou o mapeamento anatômico do triângulo de Koch com aplicações de radiofreqüência controladas por temperatura (máximo 60 graus centígrados), objetivando a modificação ou a ablação da via lenta. Os pacientes foram revistos entre 15 e 90 dias após o procedimento. Resultados: A idade média da população estudada foi de 50 maior ou menor que 8 anos, sendo o sexo feminino o mais prevalente (76,2 por cento). A não-indução da arritmia, após a ablação por radiofreqüência, ocorreu em 98,89 por cento dos pacientes. Houve recorrência precoce em 1,75 por cento dos pacientes. As complicações irreversíveis observadas foram: bloqueio atrioventricular total, observado em 3 pacientes (0,21 por cento); pseudo-aneurisma de femoral necessitando de cirurgia em 1 paciente (0,07 por cento). A eficácia final, considerando-se apenas os casos curados sem complicações irreversíveis, foi de 96,85 por cento. Dois outros pacientes apresentaram tamponamento agudo na sala de exame, com imediata drenagem e recuperação. Conclusões: A ablação por radiofreqüência da TAVN nodal apresenta alta eficácia e baixíssima incidência de complicações.


Subject(s)
Humans , Male , Female , Child, Preschool , Adolescent , Middle Aged , Catheter Ablation/methods , Catheter Ablation , Tachycardia, Atrioventricular Nodal Reentry/classification , Tachycardia, Atrioventricular Nodal Reentry/complications , Tachycardia, Atrioventricular Nodal Reentry/diagnosis , Atrial Fibrillation/complications , Atrial Fibrillation/diagnosis , Atrial Fibrillation/prevention & control
3.
Indian Heart J ; 2005 Nov-Dec; 57(6): 723-4
Article in English | IMSEAR | ID: sea-5682

ABSTRACT

Cardiomyopathy due to various ventricular and supraventricular arrhythmias, including isolated cases of atypical atrioventricular nodal reentrant tachycardia, have been described. In this case report typical slowfast atrioventricular nodal reentrant tachycardia resulting in cardiomyopathy is being documented for the first time. In the setting of depressed left ventricular function, an episode of tachycardia pushed this patient into heart failure. Radiofrequency ablation of the slow pathway was successful in eliminating her tachycardia with the return of left ventricular function to normal. A follow-up of two years post-ablation revealed the patient to be symptom-free.


Subject(s)
Aged , Catheter Ablation , Electrocardiography , Female , Follow-Up Studies , Heart Failure/etiology , Humans , Recovery of Function , Risk Assessment , Severity of Illness Index , Tachycardia, Atrioventricular Nodal Reentry/complications , Treatment Outcome , Ventricular Function, Left/physiology
7.
Yonsei Medical Journal ; : 122-129, 1998.
Article in English | WPRIM | ID: wpr-151200

ABSTRACT

This study was designed to investigate the clinical and electrophysiologic characteristics of WPW syndromes in Korea. A total of 400 symptomatic WPW syndrome patients were consecutively recruited. The most common documented symptomatic tachyarrhythmia was orthodromic atrioventricar reentrant tachycardia (75.3%), followed by atrial fibrillation (31.3%), and antidromic atrioventricular reentrant tachycardia (6.2%). There was a higher incidence of multiple bypass tract in patients with antidromic tachycardia than in those with orthodromic tachycardia (30.4 vs 4.3%, P < 0.001). The inducibility of tachyarrhythmia with electrophysiologic study in this study population was 95.8%. The most frequent location of the accessory pathway was the left free wall (48.0%), followed by the right free wall (29.1%), posterior septum (17.5%) and anterior septum (3.5%). These results indicated that 1) clinical and electrophysiological characteristics of Korean patients with WPW syndrome were similar to those of western countries and 2) the electrophysiologic study was important in the evaluation of patients with WPW syndrome.


Subject(s)
Adult , Child , Child, Preschool , Female , Humans , Male , Adolescent , Atrial Fibrillation/physiopathology , Atrial Fibrillation/complications , Electrocardiography , Electrophysiology , Korea , Middle Aged , Tachycardia/physiopathology , Tachycardia/complications , Tachycardia, Atrioventricular Nodal Reentry/physiopathology , Tachycardia, Atrioventricular Nodal Reentry/complications , Wolff-Parkinson-White Syndrome/physiopathology , Wolff-Parkinson-White Syndrome/complications
8.
Arq. bras. cardiol ; 63(2): 111-5, ago. 1994. ilus
Article in Portuguese | LILACS | ID: lil-156019

ABSTRACT

We describe three cases of the pseudo-pacemaker syndrome. One of them due to selective fast pathway fulguration of atrioventricular nodal reentrant tachycardia and two others have occurred in spontaneous form. All cases were related with the presence of first-degree atrioventricular block and sinus node tachycardia. The treatment was done with complete atrioventricular block induction catheter ablation and permanent pacemaker implantation in two patients. In conclusion, the procedure of radiofrequency ablation to control AV nodal reentry tachycardia must preserve the fast nodal pathway in order to avoid the pseudo-pacemaker syndrome and this syndrome can spontaneously occur and must be considered during investigation of etiology of syncope


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Pacemaker, Artificial , Catheter Ablation/adverse effects , Postoperative Complications/etiology , Tachycardia, Atrioventricular Nodal Reentry/surgery , Tachycardia, Atrioventricular Nodal Reentry/complications , Heart Block/diagnosis , Heart Block/etiology , Heart Block/therapy , Postoperative Complications/diagnosis , Postoperative Complications/therapy , Syncope/diagnosis , Syncope/etiology , Syncope/therapy
9.
Bol. Asoc. Méd. P. R ; 79(8): 329-32, ago. 1987. ilus
Article in English | LILACS | ID: lil-77055

ABSTRACT

A Patient with the Wolf-Parkinson-White syndrome demonstrating reciprocal beat of atrial origin aborting atrioventricular nodal Wenckebach periods, and atrioventricular bypass reentrant tachycardia, is presented


Subject(s)
Adult , Humans , Female , Pre-Excitation Syndromes/complications , Wolff-Parkinson-White Syndrome/complications , Tachycardia, Atrioventricular Nodal Reentry/complications , Electrocardiography , Pre-Excitation Syndromes/diagnosis , Tachycardia, Atrioventricular Nodal Reentry/diagnosis , Vectorcardiography
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