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Narrow QRS tachycardia

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https://www.readbyqxmd.com/read/27909509/junctional-beats-during-cryo-ablation-of-the-slow-pathway-for-the-elimination-of-atrioventricular-nodal-reentrant-tachycardia
#1
Murat Sucu, Vedat Davutoglu, Esra Polat
The patient was a 39-year-old female with recurrent paroxysmal, regular narrow QRS complex tachycardia. Atrioventricular nodal reentrant tachycardia (AVNRT) was induced. The cryo-ablation attempts (-80°C, 240 second) were performed in the inferior-posterior triangle of Koch. We observed several junctional beats during cryo-ablation. After successful cryo-ablation, AVNRT induction was repeatedly checked during a waiting period of 30 minutes without recurrence. In our case we demonstrated that junctional beats can be observed during cryo-ablation...
June 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909485/supraventricular-tachycardia-with-irregular-ventricular-atrial-intervals-and-ventriculo-atrial-block
#2
Prof Dr Murat Sucu, Prof Dr Vedat Davutoglu, Dr Esra Polat
The patient was a 68-year-old female with recurrent paroxysmal, regular narrow QRS complex tachycardia. We observed complete VA conduction block, during tachycardia in our patient. A characteristic feature of our patient is the noticeable irregular atrial and ventricular rates. We considered that possible mechanism of this tachycardia was atrioventricular nodal reentrant tachycardia (AVNRT) with retrograde complete type block in the upper common pathway.
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27896888/response-of-narrow-qrs-tachycardia-to-late-coupled-pvc-what-is-the-mechanism
#3
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Gurbhej Singh, Suji Karunakaran, Bharatraj Banavalikar, S P Abhilash, Anees Thajudeen, Ajitkumar Valaparambil
No abstract text is available yet for this article.
November 29, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27862033/narrow-qrs-tachycardia-in-a-patient-with-tachycardiomyopathy-what-is-the-mechanism
#4
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Syamkumar Divakaramenon, Bharatraj Banavalikar, Abhilash S P, Anees Thajudeen, Ajitkumar Valaparambil
No abstract text is available yet for this article.
November 10, 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27810292/special-electrophysiological-characteristics-of-pediatric-idiopathic-ventricular-tachycardia
#5
Shuenn-Nan Chiu, Wei-Lun Wu, Chun-Wei Lu, Kun-Lang Wu, Wei-Chieh Tseng, Ming-Tai Lin, Chien-Chih Chang, Jou-Kou Wang, Mei-Hwan Wu
BACKGROUND: Idiopathic ventricular tachycardia (VT) is an important pediatric arrhythmia but relevant studies in Asian cohort are rare. We determined the electrophysiological characteristics and outcomes of this rhythm disturbance. METHODS: From an institutional database, patients aged <18years without structural heart disease who have sustained monomorphic VT (longer than 30s) during 1995-2016 were enrolled. RESULTS: We enrolled 57 idiopathic VT patients (male:female=31:26)...
October 29, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27751374/diagnostic-accuracy-of-several-electrocardiographic-criteria-for-the-prediction-of-atrioventricular-nodal-reentrant-tachycardia
#6
Juliana Filgueiras Medeiros, Fábio Martins Nardo-Botelho, Lara Cristina Felix-Bernardes, Lucas Hollanda-Oliveira, Lucas Bassolli de Oliveira-Alves, Ênia Lúcia-Coutinho, Cristiano Dietrich, Adriano Caixeta, Jose Marconi Almeida-de-Sousa, Ântonio Carlos-Carvalho, Cláudio Cirenza, Ângelo Amato Vicenzo-de-Paola
BACKGROUND AND AIMS: Atrioventricular nodal reentrant tachycardia (AVNRT) is the most common form of paroxysmal supraventricular tachycardia (SVT) whose diagnosis can be strongly suspected based on the surface eletrocardiogram alone. The purpose of this study is to determine the diagnostic accuracy of several electrocardiographic (ECG) criteria for the prediction of AVNRT. METHODS: Between November 2010 and January 2014, a total of 256 patients who underwent electrophysiological testing (EP) with regular, paroxysmal and narrow QRS complex tachycardia were prospectively enrolled...
July 2016: Archives of Medical Research
https://www.readbyqxmd.com/read/27748530/sudden-death-and-its-risk-factors-after-atrioventricular-junction-ablation-and-pacemaker-implantation-in-patients-with-atrial-fibrillation
#7
Ru-Xing Wang, Hon-Chi Lee, Jia-Ping Li, David O Hodge, Yong-Mei Cha, Paul A Friedman, Thomas M Munger, Komandoor Srivathsan, Behzad B Pavri, Win-Kuang Shen
BACKGROUND: Although sudden death (SD) is a rare complication after atrioventricular junction (AVJ) ablation and permanent pacemaker implantation, the risk factors leading to this SD remain unknown. The purpose of this study was to investigate SD and its risk factors after ablate-and-pace strategy for rate control in atrial fibrillation (AF) patients during long-term follow-up. HYPOTHESIS: METHODS: From January 2005 to December 2009, we enrolled into this study 517 AF patients with AVJ ablation and right ventricular pacemaker implantation...
October 17, 2016: Clinical Cardiology
https://www.readbyqxmd.com/read/27729344/non-reentrant-fascicular-tachycardia-clinical-and-electrophysiological-characteristics-of-a-distinct-type-of-idiopathic-ventricular-tachycardia
#8
Ahmed Karim Talib, Akihiko Nogami, Itsuro Morishima, Yasushi Oginosawa, Kenji Kurosaki, Shinya Kowase, Yuki Komatsu, Kenji Kuroki, Miyako Igarashi, Yukio Sekiguchi, Kazutaka Aonuma
BACKGROUND: The most common form of idiopathic Purkinje-related ventricular tachycardia (VT) is the reentrant type. We describe the clinical and electrophysiological characteristics of focal non-reentrant fascicular tachycardia. METHODS AND RESULTS: Among 530 idiopathic VT patients who were referred for ablation, we identified 15 (2.8%) with non-reentrant fascicular tachycardia (11 men, 45±21 years). Sinus rhythm ECG showed normal conduction intervals with a His-ventricular interval of 41±4 ms...
October 2016: Circulation. Arrhythmia and Electrophysiology
https://www.readbyqxmd.com/read/27659255/-wide-narrow-wide-qrs-complex-tachycardia-what-is-the-mechanism
#9
Vincenzo Carbone, Alessio Poggi, Vincenzo Marafioti, Giuseppe Oreto
No abstract text is available yet for this article.
October 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/27637229/regular-narrow-qrs-long-rp-tachycardia-what-is-the-mechanism
#10
S Tzeis, S Pastromas, A Sikiotis, G Andrikopoulos
No abstract text is available yet for this article.
September 16, 2016: Netherlands Heart Journal
https://www.readbyqxmd.com/read/27637228/regular-narrow-qrs-long-rp-tachycardia-what-is-the-mechanism
#11
S Tzeis, S Pastromas, A Sikiotis, G Andrikopoulos
No abstract text is available yet for this article.
September 16, 2016: Netherlands Heart Journal
https://www.readbyqxmd.com/read/27611829/narrow-qrs-tachycardia-with-varying-intervals-what-is-the-mechanism
#12
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Bharatraj Banavalikar, Ajitkumar Valaparambil, Anees Thajudeen, Jaganmohan Tharakan
No abstract text is available yet for this article.
November 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27489060/narrow-qrs-tachycardia-with-long-rp-interval-what-is-the-mechanism
#13
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Anees Thajudeen, Ajitkumar Valaparambil, Jaganmohan Tharakan
No abstract text is available yet for this article.
October 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27489050/eccentric-atrial-activation-during-a-narrow-qrs-tachycardia-what-is-the-mechanism
#14
Shiv Bagga, Benzy J Padanilam, Eric N Prystowsky
No abstract text is available yet for this article.
August 4, 2016: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/27488966/narrow-qrs-tachycardia-with-rr-alternans-what-is-the-mechanism
#15
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Bharatraj Banavalikar, Ramasubramanian Nallasivan, Ajitkumar Valaparambil, Anees Thajudeen, Jaganmohan Tharakan
No abstract text is available yet for this article.
October 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27484659/paroxysmal-supraventricular-tachycardia-pathophysiology-diagnosis-and-management
#16
REVIEW
Salah S Al-Zaiti, Kathy S Magdic
Paroxysmal supraventricular tachycardia (PSVT) is a well-known and thoroughly studied clinical syndrome, characterized by regular tachycardia rhythm with sudden onset and abrupt termination. Most patients present with palpitations and dizziness, and their electrocardiogram demonstrates a narrow QRS complex and regular tachycardia with hidden or inverted P waves. PSVT is caused by re-entry due to the presence of inhomogeneous, accessory, or concealed conducting pathways. Hemodynamically stable patients are treated by vagal maneuvers, intravenous adenosine, diltiazem, or verapamil, hemodynamically unstable patients are treated by cardioversion...
September 2016: Critical Care Nursing Clinics of North America
https://www.readbyqxmd.com/read/27366332/accidental-entrapment-of-electrical-mapping-catheter-by-chiari-s-network-in-right-atrium-during-catheter-ablation-procedure
#17
Atsushi Sakamoto, Tsuyoshi Urushida, Tomoaki Sakakibara, Makoto Sano, Kenichiro Suwa, Takeji Saitoh, Masao Saotome, Hideki Katoh, Hiroshi Satoh, Hideharu Hayashi
A 78-year-old male was admitted to our hospital due to frequent palpitation. His electrocardiogram (ECG) presented regular narrow QRS tachycardia with 170 bpm, and catheter ablation was planned. During electroanatomical mapping of the right atrium (RA) with a multiloop mapping catheter, the catheter head was entrapped nearby the ostium of inferior vena cava. Rotation and traction of the catheter failed to detach the catheter head from the RA wall. Exfoliation of connective tissue twined around catheter tip by forceps, which were designed for endomyocardial biopsy, succeeded to retract and remove the catheter...
2016: Case Reports in Cardiology
https://www.readbyqxmd.com/read/27320615/intermittent-subtle-change-of-st-segment-in-narrow-qrs-regular-tachycardia
#18
Hyeong Won Seo, Hyung Wook Park, Ki Hong Lee, Joon-Ho Ahn, Ji Eun Yu, Nam Sik Yoon, Jeong Gwan Cho
No abstract text is available yet for this article.
July 2016: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/27240526/narrow-qrs-tachycardia-with-transition-what-is-the-mechanism
#19
Krishna Kumar Mohanan Nair, Narayanan Namboodiri, Bharatraj Banavalikar, Sonali Inamdar, Ajitkumar Valaparambil, Anees Thajudeen, Jaganmohan Tharakan
A 50-year-old woman underwent radiofrequency catheter ablation of narrow QRS tachycardia that was terminated with intravenous adenosine. Twelve-lead electrocardiogram was normal during sinus rhythm. The electrophysiological study showed normal atriohisian and hisioventricular intervals during sinus rhythm. Atrial burst pacing reproducibly induced two narrow QRS tachycardias. Figure 1 shows spontaneous switch of tachycardia 1 to tachycardia 2. What are the likely mechanisms of the tachycardia and the transition?...
September 2016: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/27178329/narrow-qrs-and-wide-qrs-tachycardias
#20
David Luke Glancy
In a woman with rheumatic heart disease, atrial flutter with a rapid ventricular response, and congestive heart failure, treatment with digoxin slows conduction in the atrioventricular node and thus allows atrioventricular conduction to occur by way of a previously unrecognized accessory pathway.
July 1, 2016: American Journal of Cardiology
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