Read by QxMD icon Read

left superior vena cava ablation atrial fibrillation

Takashi Kaneshiro, Kentaro Yoshida, Yukio Sekiguchi, Hiroshi Tada, Kenji Kuroki, Keisuke Kuga, Yoshiyuki Kamiyama, Hitoshi Suzuki, Yasuchika Takeishi, Kazutaka Aonuma
BACKGROUND: Several studies reported that cavotricuspid isthmus-dependent atrial flutter (typical AFL) frequently coexists with atrial fibrillation (AF); however, the underlying mechanisms have not been fully investigated. This study aimed to reveal the mechanisms of the initiation of typical AFL and the association between typical AFL and AF. METHODS: Among 154 consecutive patients undergoing a first catheter ablation of AF, we investigated the appearance and mechanism of spontaneous initiation of typical AFL during catheter ablation...
April 2017: Journal of Arrhythmia
Ki-Hun Kim, Sanghamitra Mohanty, Prasant Mohanty, Chintan Trivedi, Eli Hamilton Morris, Pasquale Santangeli, Rong Bai, Amin Al-Ahmad, John David Burkhardt, Joseph G Gallinghouse, Rodney Horton, Javier E Sanchez, Shane Bailey, Patrick M Hranitzky, Jason Zagrodzky, Soo G Kim, Luigi Di Biase, Andrea Natale
BACKGROUND: Thyroid hormone (TH) is known to enhance arrhythmogenicity, and high-normal thyroid function is related with an increased recurrence of atrial fibrillation (AF) after catheter ablation. However, the impact of thyroid hormone replacement (THR) on AF ablation is not well known. METHODS: This study evaluated 1163 consecutive paroxysmal AF patients [160 (14%) on THR and 1003 (86%) without THR] undergoing their first catheter ablation. A total of 146 patients on THR and 146 controls were generated by propensity matching, based on calculated risk factor scores, using a logistic model (age, sex, body mass index, and left atrium size)...
March 7, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
Pasquale Santangeli, Francis E Marchlinski
The end point of current catheter-based ablation approaches for the treatment of atrial fibrillation (AF) is the elimination of all the possible triggers with the least amount of ablation necessary. Once all the triggers have been eliminated, the incremental value of any additional lesion sets remains to be proven. Pulmonary vein (PV) isolation is the cornerstone of catheter ablation approaches for eliminating AF triggers. However, up to 11% of patients demonstrate reproducible sustained AF initiation from non-PV foci...
March 2, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Kai Xu, Yuanlong Wang, Shaohui Wu, Li Zhou, Liang Zhao, Weifeng Jiang, Xiaodong Zhang, Xu Liu
AIMS: The superior vena cava (SVC) has been established as an important source of atrial fibrillation (AF). The role of SVC in long-standing persistent AF and the efficacy of empiric electrical isolation of the SVC are still unclear. The purpose of this study was to judge the role of SVC in catheter ablation of long-standing persistent AF. METHODS AND RESULTS: A total of 102 consecutive patients with long-standing persistent AF were enrolled. All patients underwent circumferential pulmonary vein isolation, complex fractionated atrial electrograms ablation, and linear ablation during the index procedure...
January 9, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Koichiro Ejima, Ryuta Henmi, Yuji Iwanami, Daigo Yagishita, Morio Shoda, Nobuhisa Hagiwara
INTRODUCTION: The guidelines suggest that an adjuvant substrate modification in addition to pulmonary vein isolation (PVI) may be needed for persistent atrial fibrillation (PerAF) assuming that catheter ablation is less successful for PerAF than paroxysmal AF (PAF). To revisit the above assumption, we compared the outcome of the same catheter ablation strategy between PAF and PerAF. METHODS AND RESULTS: Two hundred and thirty-three consecutive patients (mean age 60 ± 10 years, 53 PerAF and 8 long-lasting PerAF) without structural heart disease underwent catheter ablation of AF by the same strategy using an empiric thoracic vein isolation (a wide circumferential PVI plus empiric superior vena cava isolation) as a major part of the strategy without any adjuvant substrate modification...
March 2017: Journal of Cardiovascular Electrophysiology
Xinhua Wang, Zheng Li, Jialiang Mao, Ben He
AIMS: Frequent premature atrial contractions (PACs) are associated with increased risk of atrial fibrillation (AF), stroke, and death. This study aimed to explore the electrophysiological features of PACs with and without inducing AF and to evaluate the effectiveness of catheter ablation for PACs. METHODS AND RESULTS: Thirty-five consecutive patients with symptomatic, frequent, and drug-refractory PACs in the absence of AF (group A) and 35 patients with PACs-induced AF (group B) were enrolled...
October 4, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Ammar M Killu, Erin A Fender, Abhishek J Deshmukh, Thomas M Munger, Philip Araoz, Peter A Brady, Yong-Mei Cha, Douglas L Packer, Paul A Friedman, Samuel J Asirvatham, Peter A Noseworthy, Siva K Mulpuru
BACKGROUND: Many patients with atrial fibrillation (AF) or atrial flutter (Aflutter) have concomitant sinus node dysfunction (SND). Ablation may result in injury to the sinus node complex or its blood supply resulting in sinus arrest and need for temporary pacing. We sought to characterize patients who develop acute SND (ASND) during/immediately after AF/Aflutter ablation. METHODS: We performed a retrospective analysis of AF/Aflutter ablation patients between January 1, 2010 and February 28, 2015 to characterize those who required temporary pacemaker (TPM) implantation due to ASND (sinus arrest, sinus bradycardia <40 beats/min, or junctional rhythm with hemodynamic compromise) following atrial ablation...
October 2016: Pacing and Clinical Electrophysiology: PACE
R B Tang, Z L Wang, Y H Yin, Z H Zhang, Z Q Li, J Cao, K J Cao, Y Z Yang, H Jiang, P Z Yang, B He, X Liu, Y X Sun, C S Ma
OBJECTIVE: To verify the safety and efficacy of the domestic 3D cardiac electrophysiological mapping system for catheter ablation of persistent atrial fibrillation (AF). METHODS: From December 2011 to April 2014, 255 patients (184 male) with persistent AF in 13 centers were enrolled in this multicenter prospective controlled study.The patients were allocated to catheter ablation group (experiment group) and antiarrhythmics drugs cardioversion group (control group) with the ratio 2∶1 according to the patients' intention...
May 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
Hiroshi Kato, Shoichi Kubota, Takuya Goto, Koichi Inoue, Naohiko Oku, Toshihiro Haba, Makoto Yamamoto
AIMS: We sought to establish the technical feasibility of transseptal puncture and left atrial (LA) ablation through the right internal jugular vein via the superior vena cava (SVC) approach in patients with an interrupted inferior vena cava (IVC). METHODS AND RESULTS: A 34-year-old man with persistent atrial fibrillation (AF) and polysplenia syndrome (hypoplasia of the left kidney, aplasia of the pancreas tail, bilaterally bilobed lungs, and an interrupted IVC) was referred to our hospital for radiofrequency ablation...
May 12, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
Kaoru Okishige, Hideshi Aoyagi, Naohiko Kawaguchi, Nobutaka Katoh, Mitsumi Yamashita, Tomofumi Nakamura, Manabu Kurabayashi, Hidetoshi Suzuki, Mitsutoshi Asano, Kentarou Gotoh, Tsukasa Shimura, Yasuteru Yamauchi, Toshirou Kanazawa, Tetsuo Sasano, Kenzo Hirao
BACKGROUND: Diaphragmatic electrogram recording during cryoballoon ablation (CB-A) of atrial fibrillation is commonly used to predict phrenic nerve palsy (PNP). OBJECTIVE: The purpose of this study was to investigate a novel method for predicting PNP at an earlier stage to prevent sustained PNP. METHODS: A total of 197 patients undergoing CB-A were enrolled. We attempted to detect PNP using fluoroscopic images of diaphragmatic contractions and by monitoring diaphragmatic compound motor action potentials (CMAPs) provoked by superior vena cava (SVC) and left subclavian vein (LCV) pacing during CB-A for bilateral pulmonary veins (PVs)...
September 2016: Heart Rhythm: the Official Journal of the Heart Rhythm Society
Emily Sue Ruckdeschel, Joseph Kay, William H Sauer, Duy Thai Nguyen
In a patient with Fontan palliation and persistent atrial fibrillation two triggers were identified that initiated atrial fibrillation (AF) from the superior vena cava (SVC) and the right atrium. SVC triggers are more common in patients with a normal-sized left atrium. Eliminating these triggers prevented AF from being sustained in this patient and thus pulmonary vein isolation was not pursued. The patient has remained AF free for 3 years without medications or repeat ablation. Targeting of potential right-sided triggers for AF ablation, before pulmonary vein isolation, should be considered; such an approach may reduce risks in these complex patients...
March 2016: Cardiac Electrophysiology Clinics
Thomas Deneke, Andreas Mügge, Karin Nentwich, Philipp Halbfaß
No abstract text is available yet for this article.
April 2016: Journal of Cardiovascular Electrophysiology
Takeshi Kitamura, Seiji Fukamizu, Ken Arai, Rintaro Hojo, Yuya Aoyama, Kota Komiyama, Harumizu Sakurada, Masayasu Hiraoka
We performed catheter ablation to septal superior vena cava (SVC)-right atrium (RA) junction rapid firing in a 57-year-old man with paroxysmal atrial fibrillation. He later experienced transient sinus node dysfunction resulting from injury to the sinus node artery (SNA), which branched only from the proximal region of the left circumflex artery. The direction of the SNA should be considered during catheter ablation at the septal SVC-RA junction, especially if the sinus node is supplied by only one SNA from the right coronary artery or the left circumflex artery...
January 2016: Journal of Electrocardiology
Kunihiko Kiuchi, Katsunori Okajima, Yu Takahashi, Kiminobu Yokoi, Akira Shimane
Coexistence of a persistent left superior vena cava (PLSVC) with a common inferior pulmonary vein (CIPV) is very rare. The electrical assessment of those thoracic veins was performed during the atrial fibrillation ablation.
August 2015: Journal of Arrhythmia
Masateru Takigawa, Taishi Kuwahara, Kenji Okubo, Atsushi Takahashi
A 39-year-old man with a seemingly non-remodeled, small heart suffered persistent atrial fibrillation (AF). Extensive isolation of the pulmonary vein, superior vena cava, and posterior left atrium, in conjunction with right atrium focal ablation, was performed to ablate multiple AF foci during two catheter ablation sessions. Sinus arrest occurred suddenly during follow-up, despite the absence of recurrent AF, ultimately necessitating pacemaker implantation. This case underscores the necessity of careful follow-up after catheter ablation, highlighting the risk of sudden, severe sinus node dysfunction, even in young AF patients with small hearts...
August 2015: Journal of Arrhythmia
Jorge Romero, Carola Gianni, Luigi Di Biase, Andrea Natale
Atrial fibrillation (AF) is the most common sustained arrhythmia worldwide and represents a major burden to health care systems. Atrial fibrillation is associated with a 4- to 5-fold increased risk of thromboembolic stroke. The pulmonary veins have been identified as major sources of atrial triggers for AF. This is particularly true in patients with paroxysmal AF but not always the case for those with long-standing persistent AF (LSPAF), in which other locations for ectopic beats have been well recognized. Structures with foci triggering AF include the coronary sinus, the left atrial appendage (LAA), the superior vena cava, the crista terminalis, and the ligament of Marshall...
April 2015: Methodist DeBakey Cardiovascular Journal
Pasquale Santangeli, David Lin
Pulmonary vein isolation (PVI) is the cornerstone of current ablation techniques to eliminate atrial fibrillation (AF), with the greatest efficacy as a stand-alone procedure in patients with paroxysmal AF. Over the years, techniques for PVI have undergone a profound evolution, and current guidelines recommend PVI with confirmation of electrical isolation. Despite significant efforts, PV reconnection is still the rule in patients experiencing post-ablation arrhythmia recurrence. In recent years, use of general anesthesia with or without jet ventilation, open-irrigated ablation catheters, and steerable sheaths have been demonstrated to increase the safety and efficacy of PVI, reducing the rate of PV reconnection over follow-up...
April 2015: Methodist DeBakey Cardiovascular Journal
Thomas Rostock, Torsten Konrad, Sebastian Sonnenschein, Hanke Mollnau, Blanca Quesada Ocete, Karsten Bock, Raphael Spittler, Carola Huber, Cathrin Theis
INTRODUCTION: Atrial tachycardia in virtually all areas of both atria has become more important in the clinical management of patients with previous complex atrial fibrillation ablation. Accurate interpretation of surface electrocardiogram (ECG) characteristics is of paramount importance to localize the origin of atrial tachycardia, particularly for planning interventional treatment. This article highlights the ECG features of different types of right and left atrial tachycardia. DEFINITION: Typical right atrial flutter through the cavotricuspid isthmus conducts septally in a cranial direction and demonstrates sawtooth-like flutter waves which start negative in II, III and aVF and then show a steep slope upwards to the isoelectric line...
September 2015: Herzschrittmachertherapie & Elektrophysiologie
Gavin S Chu, Ilaria Coviello, Roberto Mollo, G André Ng
No abstract text is available yet for this article.
May 21, 2015: Journal of Cardiovascular Electrophysiology
Saurabh Kumar, Chirag R Barbhaiya, Samuel H Baldinger, Bruce A Koplan, Melanie Maytin, Laurence M Epstein, Roy M John, Gregory F Michaud, Usha B Tedrow, William G Stevenson
BACKGROUND: Arrhythmia origin in close proximity to the phrenic nerve (PN) can hinder successful catheter ablation. We describe our approach with epicardial PN displacement in such instances. METHODS AND RESULTS: PN displacement via percutaneous pericardial access was attempted in 13 patients (age 49±16 years, 9 females) with either atrial tachycardia (6 patients) or atrial fibrillation triggered from a superior vena cava focus (1 patient) adjacent to the right PN or epicardial ventricular tachycardia origin adjacent to the left PN (6 patients)...
August 2015: Circulation. Arrhythmia and Electrophysiology
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"