Read by QxMD icon Read


Yuki Shimizu, Osamu Inaba, Masahiko Goya, Kenzo Hirao
A 58-year-old man with a long R-P' narrow QRS tachycardia underwent an electrophysiological study. The tachycardia was diagnosed as a permanent form of junctional reciprocating tachycardia (PJRT), and the earliest atrial activation site during tachycardia was coronary sinus (CS) ostium. Radiofrequency ablation at the site was initially not successful because the tip impedance and temperature were unstable. After changing of the ablation catheter to that with contact force sensor, the accessory pathway was immediately ablated and the PJRT was no longer induced...
May 24, 2017: Pacing and Clinical Electrophysiology: PACE
Dirk Vollmann, Claudius Hansen
A 35-year-old female was referred with progressive dyspnoea and elevated heart rate. Surface electrocardiography (ECG) showed supraventricular tachycardia (SVT) with long RP interval and inverse P waves. ECG revealed left ventricular dilation and severe systolic dysfunction. An electrophysiological (EP) examination was performed due to incessant SVT despite betablocker medication. Permanent junctional reciprocating tachycardia (PJRT) was diagnosed and successfully ablated. During follow-up, the patient's symptoms abated and ECG parameters normalized...
December 2016: Herzschrittmachertherapie & Elektrophysiologie
Barbara Bellmann, Mattias Roser, Bogdan G Muntean
We report the case of a 19-year-old male patient who presented with a permanent junctional reciprocating tachycardia (PJRT). After a primarily successful radiofrequency ablation of a para-Hisian, midseptal, accessory pathway, recurrence of tachycardia was documented. Thereafter, successful ablation using cryoenergy was performed. Since this second ablation the patient has been free of tachycardia. Our case study shows that the treatment of PJRT in young adults using cryoenergy can be successfully and safely conducted, especially after tachycardia recurrence following an initial radiofrequency ablation...
June 20, 2016: Wiener Medizinische Wochenschrift
Moisés Rodríguez-Mañero, Xesús A Fernández-López, Laila González-Melchor, Javier García-Seara, Jose Luis Martínez-Sande, José Ramón González-Juanatey
Permanent junctional reciprocating tachycardia (PJRT) is an uncommon form of atrioventricular reentrant tachycardia due to an accessory pathway characterized by slow and decremental retrograde conduction. The majority of accessory pathways in PJRT are located in the posteroseptal zone. Few cases of atypical location have been described. We report a case of PJRT in a 72-year-old woman in whom the accessory pathway was located in the left lateral region and treated by radiofrequency catheter ablation.
January 2016: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
Suhair O Shebani, G Andre Ng, Peter Stafford, Christopher Duke
AIMS: To evaluate the use of extracorporeal membrane oxygenation (ECMO) in supporting infants who require radiofrequency ablation (RFA) for incessant tachyarrhythmias, with particular emphasis on modifications required to standard ablation techniques. METHODS AND RESULTS: Three cases of RFA carried out in infancy on ECMO support were reviewed retrospectively. Two infants with permanent junctional reciprocating tachycardia (PJRT) and one with ventricular tachycardia (VT) presented in a low cardiac output state, owing to cardiomyopathy caused by incessant tachycardia...
April 2015: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Reginald T Ho
Long RP tachycardias are a unique collection of arrhythmias that include atypical (fast-slow) atrio-ventricular nodal reentrant tachycardia (AVNRT) with and without a concealed, bystander nodo-fascicular/ventricular accessory pathway (AP), orthodromic reciprocating tachycardia (ORT) using a concealed, slowly conducting, and decremental atrio-ventricular (AV) AP (PJRT), ORT using a concealed nodo-fascicular/ventricular AP (NFRT), and atrial tachycardia (AT)-all but the last being dependent upon the AV node. These tachycardias respond differently to pacing maneuvers than their short RP counterparts and can manifest: (1) both true and pseudo-AAV responses, (2) long uncorrected and corrected post-pacing intervals, (3) prolonged delta ventriculo-atrial (∆VA) and delta His bundle-atrial (∆HA) values, and (4) resetting with delay...
April 2015: Current Treatment Options in Cardiovascular Medicine
Kristopher T Kang, James E Potts, Andrew E Radbill, Martin J La Page, John Papagiannis, Jason M Garnreiter, Petr Kubus, Michal J Kantoch, Nicholas H Von Bergen, Anne Fournier, Jean-Marc Côté, Thomas Paul, Charles C Anderson, Bryan C Cannon, Christina Y Miyake, Andrew D Blaufox, Susan P Etheridge, Shubhayan Sanatani
BACKGROUND: Permanent junctional reciprocating tachycardia (PJRT) is an uncommon form of supraventricular tachycardia in children. Treatment of this arrhythmia has been considered difficult because of a high medication failure rate and risk of cardiomyopathy. Outcomes in the current era of interventional treatment with catheter ablation have not been published. OBJECTIVE: To describe the presentation and clinical course of PJRT in children. METHODS: This is a retrospective review of 194 pediatric patients with PJRT managed at 11 institutions between January 2000 and December 2010...
August 2014: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Roberto A Santilli, Luis F N Santos, Manuela Perego
A 5-year-old male English Bulldog was presented with a 1-year history of paroxysmal supraventricular tachycardia (SVT) partially responsive to amiodarone. At admission the surface ECG showed sustained runs of a narrow QRS complex tachycardia, with a ventricular cycle length (R-R interval) of 260 ms, alternating with periods of sinus rhythm. Endocardial mapping identified the electrogenic mechanism of the SVT as a circus movement tachycardia with retrograde and decremental conduction along a concealed postero-septal atrioventricular pathway (AP) and anterograde conduction along the atrioventricular node...
September 2013: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
Marek Jastrzębski, Maciej Pitak, Andrzej Rudziński, Danuta Czarnecka
We present a case of 8 year-old boy with several episodes of ventricular fibrillation in the course of tachycardia-mediated cardiomyopathy and severe decompensated heart failure. The cardiomyopathy was caused by incessant long-RP tachycardia that was resistant to pharmacotherapy. Despite initial suspition that the arrhythmia was permanent junctional reciprocating tachycardia (PJRT) electrophysiology study revealed atypical atrioventricular nodal reentrant tachycardia. Due to clinical and electrocardiographical presentation mimicking PJRT such arrhythmia merits the name 'pseudo PJRT'...
2013: Kardiologia Polska
Raja Selvaraj, Ajith Ananthakrishnapillai, Ravishankar Sadasivam, Jayaraman Balachander
A 52-year-old woman presented with left ventricular (LV) dysfunction and incessant narrow complex tachycardia. Electrocardiogram and clinical picture were suggestive of a permanent form of junctional reciprocating tachycardia, but electrophysiology study showed the tachycardia to be a fast-slow form of atrioventricular nodal reentrant tachycardia (AVNRT). Slow pathway ablation terminated the tachycardia and the LV dysfunction resolved completely at follow-up. Fast-slow AVNRT has not been reported to present in incessant form, and the mechanism in this patient was absent retrograde fast pathway conduction resulting in easy initiation and maintenance of tachycardia...
January 2013: Pacing and Clinical Electrophysiology: PACE
Zeljko Mikovic, Natasa Karadzov, Ida Jovanovic, Vedrana Milic, Branislav Tomovic, Amira Egic, Gordana Dragovic Lukic
We reported a case of a child with neurodevelopment delay induced by long-term amiodarone exposure due to a treatment of fetal supraventricular tachycardia (FSVT), subtype permanent junctional reciprocating tachycardia (PJRT) with the normal thyroidal function. Refractory persistent FSVT was treated intrautero with digoxin (0.5 mg QD) until delivery and amiodarone (100 mg QD) from 26 to 35 weeks of gestation. A baby weighing 3550 g with normal acid-base status was delivered at 38 weeks of gestation. The PJRT recurred 28 hours after delivery and reverted to sinus rhythm with amiodarone and propranolol for another 24 months...
July 2010: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
J Cornette, A D J ten Harkel, E A P Steegers
Ultrasound examination of a fetus at 32 weeks' gestation revealed dilated cardiomyopathy and a heart rate of 170 beats per minute. Prenatally, this mild tachycardia was not primarily suspected to be the cause of the myocardial changes. Postnatal electrocardiography revealed a persistent junctional reciprocating tachycardia (PJRT) and the diagnosis of tachycardia-induced cardiomyopathy (TICM) became apparent. After conversion to a sinus rhythm under digoxin and amiodarone, the cardiac changes regressed. PJRT is a rare form of supraventricular tachycardia...
May 2009: Ultrasound in Obstetrics & Gynecology
Hussam Ali, Laura Vitali-Serdoz, Paolo Ferrero, Mario Pittalis, Giuseppina Belotti, Riccardo Cappato
A 25-year-old woman with drug-refractory permanent junctional reciprocating tachycardia (PJRT) and a previous failed ablation, was referred to our institution. Electrophysiological study confirmed the diagnosis of orthodromic atrioventricular reentry tachycardia using a slowly conducting accessory pathway. This accessory pathway was successfully ablated by conventional radiofrequency at the left anteroseptal region using a transseptal approach. Catheter ablation of this accessory pathway (Coumel type) at the mitral annulus-aorta junction offers insights on a rare anatomical location of PJRT...
December 2008: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Ivan Malcić, Bruno Buljević, Wilhelm Kaltenbrunner, Drazen Jelasić, Zeljka Mustapić
We present 14-year-old girl with permanent junctional reciprocating tachycardia which was refractory to medicamentous therapy, who also had dilated cardiomyopathy. She underwent successful radiofrequent catheter ablation of accessory pathway after wich the histologic changes in the myocardium were observed in the form of compensatory hypertrophy of cardiac muscle (cardiac remodelling). The question of cause and consequence appeared: whether the arrhythmia is a consequence of dilated cardiomyopathy, or it is tachycardia- induced cardiomyopathy...
March 2007: Lijec̆nic̆ki Vjesnik
Sema Ozer, Alpay Celiker, Tevfik Karagöz, Engin Melek
Transesophageal electrophysiologic study (TEEPS) is a semi-invasive method of atrial stimulation and recording. The aim of the study was to report our experience with TEEPS in children and young adults. A total of 153 TEEPS were performed in 147 consecutive patients aged between 26 days to 26 years (mean 9.8 years) with the following indications: evaluation of symptoms that may be signs of any arrhythmias in 89 procedures (Group A), risk assessment of Wolff-Parkinson-White syndrome (WPW) in 17 procedures (Group B), determination of the mechanism of previously detected or ongoing tachycardia on ECG or Holter monitoring in 22 procedures (Group C), assessment of antiarrhythmic therapy effectiveness in 17 procedures (Group D), and follow-up of radiofrequency ablation procedure (RFA) in 8 procedures (Group E)...
January 2007: Turkish Journal of Pediatrics
Andreas Pflaumer, Gabriele Hessling, Armin Luik, Jinjin Wu, Bernhard Zrenner
BACKGROUND: Mapping and catheter ablation of permanent junctional reciprocating tachycardia (PJRT) in children can be challenging. Remote magnetic navigation may improve precise mapping and catheter stability during ablation, as well as reduce fluoroscopy time, especially in conjunction with a non-fluoroscopic mapping system. OBJECTIVE: We report a case of PJRT ablation in a 7-year-old child using remote magnetic navigation. METHODS AND RESULTS: Mapping of the right atrium (RA) and the coronary sinus (CS) and catheter ablation were performed using remote magnetic navigation in conjunction with a non-fluoroscopic mapping system (NavX)...
August 2007: Journal of Cardiovascular Electrophysiology
Fiorenzo Gaita, Antonio Montefusco, Riccardo Riccardi, Marco Scaglione, Stefano Grossi, Domenico Caponi, Enrico Caruzzo, Carla Giustetto, Mario Bocchiardo, Paolo Di Donna
OBJECTIVE: Cryoenergy is a new valuable treatment option to perform ablation close to the atrioventricular (AV) node in the cure of supraventricular tachycardias because of its favourable properties, such as the possibility of creating reversible lesions. The aim of this study was to report our experience on the effectiveness and safety of catheter cryoablation performed in "critical areas" to treat a large cohort of patients with supraventricular arrhythmias. METHODS: One hundred and thirty-one patients suffering from supraventricular tachycardias underwent catheter cryoablation using a 7F catheter...
November 2006: Journal of Cardiovascular Medicine
Charlotte Händler Vislie, Ragnhild Beate Mikkelsen, Per Ivar Hoff, Gottfried Greve
BACKGROUND: Atrioventricular nodal reentry tachycardia is a supraventricular tachycardia with a double nodal pathway between the atria and the ventricles located in the normal AV-node. It may cause a reentry circuit. Atrioventricular nodal reentry tachycardia is one of the most common supraventricular tachycardias in adulthood, but is seldom diagnosed in children--perhaps because of difficulties with diagnosing them. We have studied diagnostic criteria, clinical presentation, incidence, prognosis and treatment in children and adolescents...
September 21, 2006: Tidsskrift for Den Norske Lægeforening: Tidsskrift for Praktisk Medicin, Ny Række
B Brembilla-Perrot
UNLABELLED: Electrophysiologic study (EPS) frequently is required to assess the prognosis of asymptomatic Wolff-Parkinson-White syndrome (WPW) or to prove the nature of no documented tachycardia. EPS usually is performed by intracardiac route and hospitalization is required. Similar data are given by an EPS performed by oesophageal route during a consultation. The purpose of the study was to evaluate the cost of both techniques in France. Transesophageal EPS was performed during a consultation in 100 patients with asymptomatic WPW syndrome and 100 patients with no heart disease, complaining of no documented tachycardias with abrupt beginning and end, suggesting a paroxysmal junctional re-entrant tachycardia (PJRT)...
June 2006: Annales de Cardiologie et D'angéiologie
Basri Amasyali, Sedat Kose, Kudret Aytemir, Ayhan Kilic, Hurkan Kursaklioglu, Ersoy Isik
Permanent form of junctional reciprocating tachycardia (PJRT) is an uncommon form of atrioventricular re-entrant tachycardia due to an accessory pathway characterized by slow and decremental retrograde conduction. The majority of accessory pathways in PJRT are localized in the posteroseptal zone. Despite the high success rate, failure may occur during endocardial radiofrequency catheter ablation due to epicardial insertion of the accessory pathway. We report a case of PJRT in a 25-year-old man in whom the accessory pathway was located epicardially in the posteroinferior region and ablated from within the middle cardiac vein by radiofrequency catheter ablation...
May 2006: Heart and Vessels
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"