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Michal M Farkowski, Mariusz Pytkowski, Aleksander Maciag, Dominik Golicki, Ilona Kowalik, Marcin Czech, Piotr Rucinski, Hanna Szwed
PURPOSE: Radiofrequency ablation (RFA) is considered the treatment of choice in cases of atrioventricular nodal reciprocating tachycardia (AVNRT) and atrioventricular reciprocating tachycardia (AVRT). Published studies suggest a considerable time gap between the onset of the arrhythmia, correct diagnosis, and RFA which may reach 10-15 years. The cost of medical treatment during that period may be substantial. The aim of the study was to calculate the annual direct medical cost of medical treatment of patients with AVNRT and AVRT and identify potential factors influencing this cost...
August 3, 2016: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Koichi Nagashima, Ichiro Watanabe, Yasuo Okumura, Yoshiaki Kaneko, Kazumasa Sonoda, Rikitake Kogawa, Naoko Sasaki, Kazuki Iso, Keiko Takahashi, Sayaka Kurokawa, Toshiko Nakai, Kimie Ohkubo, Atsushi Hirayama
BACKGROUND: Although a ventriculoatrial interval (VAI) of ≤70 ms is used to distinguish atrioventricular nodal reentrant tachycardia from orthodromic atrioventricular reciprocating tachycardia (AVRT), a VAI of ≤70 ms is sometimes observed in cases of AVRT. The study aimed to evaluate the short VAI that is seen in AVRT and to understand its underlying mechanism. METHODS: Electrophysiologic studies of 46 consecutive patients with AVRT involving an accessory pathway (AP) were examined retrospectively...
October 2016: Pacing and Clinical Electrophysiology: PACE
Béatrice Brembilla-Perrot, Jean-Marc Sellal, Arnaud Olivier, Thibaut Villemin, Anne Moulin-Zinsch, Daniel Beurrier, Jean-Paul Lethor, François Marçon, Christian DE Chillou, Jacques Felblinger, Julie Vincent
BACKGROUND: With ablation, the follow-up of preexcitation syndrome now is difficult to assess. The purpose was to collect data of children with a preexcitation syndrome studied on two separate occasions within a minimal interval of 1 year. METHODS: This is a retrospective chart review of 47 children initially aged 12 ± 4 years, who underwent two or more invasive electrophysiological studies (EPS) within 1-25 years of one another (6.3 ± 4.8) for occurrence of symptoms or new evaluation...
September 2016: Pacing and Clinical Electrophysiology: PACE
Béatrice Brembilla-Perrot, Arnaud Olivier, Thibaut Villemin, Julie Vincent, Vladimir Manenti, Daniel Beurrier, Arnaud Terrier de la Chaise, Olivier Selton, Pierre Louis, Christian de Chillou, Jean Marc Sellal
BACKGROUND: Atrial fibrillation (AF) and other supraventricular tachyarrhythmias (SVTA) [atrial flutter (AFL), atrioventricular nodal reentrant tachycardia (AVNRT), atrioventricular reentrant tachycardia (AVRT) and preexcitation syndrome (PS)] are frequently associated. We assessed the AF occurrence frequency and predictors according to the nature of SVTA and completion of SVTA ablation. METHODS AND RESULTS: 4169 patients were referred for SVTA (typical AVNRT: 1338, AVRT over a concealed accessory pathway: 329, atypical AVNRT: 205, AFL: 1321; PS: 976); mean age was 50±20years; electrophysiological study (EPS) was systematic; patients were followed for a mean duration of 3±4...
October 1, 2016: International Journal of Cardiology
Takahiko Kinjo, Shingo Sasaki, Masaomi Kimura, Shingen Owada, Daisuke Horiuchi, Kenichi Sasaki, Taihei Itoh, Yuji Ishida, Yoshihiro Shoji, Kimitaka Nishizaki, Yuichi Tsushima, Hirofumi Tomita, Ken Okumura
BACKGROUNDS: Postpacing interval (PPI) measured after entrainment pacing describes the distance between pacing site and reentrant circuit. However, the influential features to PPI remain to be elucidated. METHODS AND RESULTS: This study included 22 cases with slow/fast atrioventricular (AV) nodal reentrant tachycardia (AVNRT), 14 orthodromic AV reciprocating tachycardia (AVRT) using an accessary pathway, 22 typical atrial flutter (AFL), and 18 other macroreentrant atrial tachycardia (atypical AFL)...
August 2016: Journal of Cardiovascular Electrophysiology
Ivan Zeljković, Ivica Benko, Šime Manola, Vjekoslav Radeljić, Nikola Pavlović
We report the case of a 46-year old patient in whom an electrophysiology study (EP) was performed due to paroxysmal supraventricular tachycardia documented in 12-lead ECG. During the EP study, supraventricular tachycardia was induced easily and it corresponded to orthodromic AV reentry tachycardia (AVRT) using a concealed left free wall accessory pathway. However, during the study AVRT spontaneously and repeatedly converted to the typical slow-fast AV node reentry tachycardia (AVNRT). Both accessory and AV nodal slow pathways were ablated, due to the finding that both AVRT and AVNRT were independently inducible during the EP study...
September 2015: Indian Pacing and Electrophysiology Journal
Arttu O Lehtonen, Pauli Puukka, Juha Varis, Kimmo Porthan, Jani T Tikkanen, Markku S Nieminen, Heikki V Huikuri, Ismo Anttila, Kjell Nikus, Mika Kähönen, Antti Jula, Teemu J Niiranen
OBJECTIVE: To define the prevalence and prognosis of ECG abnormalities in hypertensive individuals. METHODS: ECG, blood pressure and other cardiovascular risk factors were recorded in a nationwide population sample of 5800 Finns. The presence of 15 ECG abnormalities was evaluated. Participants were divided into categories by blood pressure and followed for coronary heart (CHD) and cardiovascular disease (CVD) events. RESULTS: Mean follow-up was 10...
May 2016: Journal of Hypertension
Jason See, Jonah L Amora, Sheldon Lee, Paul Lim, Wee Siong Teo, Boon Yew Tan, Kah Leng Ho, Chee Wan Lee, Chi-Keong Ching
INTRODUCTION: The use of non-fluoroscopic systems (NFS) to guide radiofrequency catheter ablation (RFCA) for the treatment of supraventricular tachycardia (SVT) is associated with lower radiation exposure. This study aimed to determine if NFS reduces fluoroscopy time, radiation dose and procedure time. METHODS: We prospectively enrolled patients undergoing RFCA for SVT. NFS included EnSiteTM NavXTM or CARTO® mapping. We compared procedure and fluoroscopy times, and radiation exposure between NFS and conventional fluoroscopy (CF) cohorts...
July 2016: Singapore Medical Journal
Ai Matsukane, Toshihide Hayashi, Yuri Tanaka, Masaki Iwasaki, Shun Kubo, Takasuke Asakawa, Yasunori Takahashi, Yoshihiko Imamura, Koichi Hirahata, Nobuhiko Joki, Hiroki Hase
BACKGROUND/AIMS: An upright T-wave in lead aVR (aVRT) has recently been reported to be associated with cardiovascular death and mortality among the general population and patients with prior cardiovascular disease (CVD). However, evidence for the predictive ability of aVRT in patients with chronic kidney disease is lacking. Therefore, a hospital-based, prospective, cohort study was conducted to evaluate the predictive ability of an upright aVRT for the short-term prognosis in incident hemodialysis patients...
October 2015: Cardiorenal Medicine
Yosuke Nakatani, Koichi Mizumaki, Tamotsu Sakamoto, Naoya Kataoka, Kunihiro Nishida, Yoshiaki Yamaguchi, Yasushi Tsujino, Hiroshi Inoue
BACKGROUND: This study aimed to clarify whether retrograde P-wave amplitude during tachycardia can be used to differentiate slow-slow form of atrioventricular nodal reentrant tachycardia (S/S-AVNRT) from atrioventricular reentrant tachycardia through a posteroseptal accessory pathway (PS-AVRT). METHODS: Sixteen patients with S/S-AVNRT and 14 patients with PS-AVRT constituted the study group. Electrocardiographic and electrophysiological parameters were compared between both the groups...
March 2016: Pacing and Clinical Electrophysiology: PACE
Mustafa Gülgün, Sema Özer, Tevfik Karagöz, Alper Akın, Hayrettin Hakan Aykan, Süheyla Özkutlu, Dursun Alehan, Alpay Çeliker
OBJECTIVE: The aim of this study was to evaluate the efficacy of transesophageal electrophysiologic study (TEEPS) for the determination of supraventricular tachycardia (SVT) recurrences in symptomatic and asymptomatic children after successful radiofrequency ablation (RFA) for SVT. METHODS: A total of 66 patients who underwent TEEPS after successful RFA were included. The demographic features, symptoms of the patients, and the characteristics of the recurrences induced by TEEPS were evaluated...
February 2016: Anatolian Journal of Cardiology
David Calvo, Pablo Ávila, F Javier García-Fernández, Marta Pachón, Loreto Bravo, Gabriel Eidelman, Jesús Hernández, Ángel L Miracle, José Rubín, Diego Pérez, Ángel Arenal, Felipe Atienza, Javier Jimenez-Candil, Miguel Ángel Arias, Tomás Datino, Pablo Martínez-Camblor, Esteban Gonzalez-Torrecilla, Jesús Almendral
BACKGROUND: Differential diagnosis between tachycardia mediated by septal accessory pathways (AP) and atypical atrioventricular nodal reentry can be challenging. We hypothesized that an immediate versus delayed pace-related advancement of the atrial electrogram, once the local septal parahisian ventricular electrogram (SVE) has been advanced, may help in this diagnosis. METHODS AND RESULTS: We focused on differential timing between SVE and atrial signals at the initiation of continuous right ventricular apical pacing during tachycardia...
October 2015: Circulation. Arrhythmia and Electrophysiology
Halil Dogan, Dogac Niyazi Ozucelik, Kurtulus Aciksari, Ilker Murat Caglar, Nursel Okutan, Mustafa Yazicioglu, Baris Murat Avyaci, Cem Simsek, Derya Ozasir, Tufan Akin Giray, Cem Ayan, Feridun Celikmen, Yıldız Okuturlar, Sezgin Sarikaya
UNLABELLED: The aim of this study is to investigate the effect of ECG criteria which are used for the distinction between AVNRT and AVRT for the choice of treatment in patients with Supraventricular Tachycardia (SVT). The 77 patients with narrow QRS complex SVT which was treated with Adenosine or Diltiazem in the Emergency Department were evaluated retrospectively. All 12-lead ECG during tachycardia were blindly reviewed according to ECG criteria (Pseudo-r` in V1, Pseudo-S-wave in the inferior leads, Visible P-wave, aVL notch) by a cardiologist and an emergency physician...
2015: International Journal of Clinical and Experimental Medicine
Thorsten Lewalter
The differential diagnosis of a narrow QRS tachycardia requires on the one hand knowledge about the clinical data of the tachycardia patient but on the other hand a systematic step by step analysis of the electrocardiogram (ECG) is the most successful approach. Apart from the question of regularity or irregularity of the QRS complexes, the presence and detection of P waves is also of importance. The P wave timing in relation to the preceding and the following QRS complexes as well as the numerical relationship of P waves and QRS complexes allow a well-founded suspected diagnosis to be achieved in most cases...
September 2015: Herzschrittmachertherapie & Elektrophysiologie
Béatrice Brembilla-Perrot, Maxime Bénichou, Alice Brembilla, Erwan Bozec, Sarah Dorlet, Jean Marc Sellal, Arnaud Olivier, Vladimir Manenti, Thibaut Villemin, Daniel Beurrier, Anne Moulin-Zinsch, Christian De Chillou, Nicolas Girerd
OBJECTIVES: To jointly study paroxysmal supraventricular tachycardia (SVT)-related adverse events (AE) and ablation-related complications, with specific emphasis on the predictors of SVT-related AE as well as their significance by investigating their association with long-term mortality. METHODS: 1770 patients were included, aged 6 to 97, with either atrioventricular nodal reentrant tachycardia (AVNRT) or orthodromic atrioventricular reciprocal tachycardia (AVRT) mediated by concealed accessory pathway, consecutively referred for SVT work-up in a tertiary care center...
November 15, 2015: International Journal of Cardiology
Britt-Marie Ekman-Joelsson, Mats Mellander, Linda Lagnefeldt, Sven-Erik Sonesson
AIM: The optimal treatment for foetal tachyarrhythmia remains controversial, and this study aimed to fill this gap in the knowledge. METHODS: We retrospectively reviewed all cases of foetal tachyarrhythmia diagnosed at two tertiary foetal cardiology centres in Sweden from 1990 to 2012. RESULTS: Of the 153 cases, 28% had atrial flutter (AF), 63% had atrioventricular reentrant tachycardia (AVRT) and 9% had other mechanisms. Hydrops was present in 45, less frequently in AF than in AVRT...
November 2015: Acta Paediatrica
Yuedong Ma, Jia Qiu, Yang Yang, Anli Tang
Three-dimensional (3D) mapping and navigation systems have been widely used for the ablation of atrial fibrillation and ventricular tachycardia, but the applicability of these systems for the ablation of supraventricular tachycardia (SVT) due to right-sided accessory pathways (RAPs) remains unknown. The goal of this prospective randomized study was to compare the safety, efficiency, and efficacy of nonfluoroscopic and conventional fluoroscopic mapping techniques in guiding catheter ablation of SVT due to RAPs...
2015: PloS One
Piotr Liszniańskl, Joanna Pudło, Maria Lelakowska-Pieła, Jacek Nowak, Jacek Lelakowski
BACKGROUND: RF ablation is an acknowledged method of treatment for many arrhythmias. During the ablation procedure the cause of the arrhythmia is eliminated, which results in resolution of cardiac arrhythmia and related clinical manifestations and therefore removes restrictions in the functioning of the patient, which were associated with the presence of arrhythmias. AIM OF THE STUDY: Was to assess quality of life in patients undergoing RF ablation due to atrioventricular nodal reciprocating tachycardia--VNRT, atrioventricular reciprocating tachycardia -AVRT and ventricular ectopic beats --EB's using the SF-36 questionnaire, DASI and Manolis...
2015: Przegla̧d Lekarski
Ji-Eun Ban, Sang-Weon Park, Hyun-Soo Lee, Jong-Il Choi, Young-Hoon Kim
We reported a case of a 55-year-old patient who presented with palpitation after swallowing. Initial surface electrocardiogram revealed ventricular preexcitation utilizing a left lateral bypass tract. The orthodromic atrioventricular reentrant tachycardia (AVRT) was induced during electrophysiologic studies. After successful ablation of the AVRT utilizing a left lateral free wall bypass tract, 2 different atrial tachycardias (ATs) were induced under isoproterenol infusion. When the patient swallowed saliva or drank water, 2 consecutive beats of atrial premature complexes (APCs) preceded another non-sustained AT repeatedly, which was coincident with the patient's symptom...
May 2015: Korean Circulation Journal
Pablo A Chiale, Adrián Baranchuk, Mario D González, Rubén A Sánchez, Hugo A Garro, Pablo A Fernández, Carlos Quiroga Avalos, Andres Enriquez, Marcelo V Elizari
BACKGROUND: Atrioventricular nodal reentrant tachycardia (AVNRT) and atrioventricular reentrant tachycardia (AVRT) often terminate spontaneously, presumably due to changes in the electrophysiological properties of the reentrant circuit. However, the mechanism of spontaneous termination of these arrhythmias is incompletely understood. METHODS: We included 70 consecutive patients with reentrant supraventricular tachycardias (35 AVNRT, 35 AVRT) in whom the arrhythmia ended spontaneously during the electrophysiologic study...
July 15, 2015: International Journal of Cardiology
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