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JAMA Netw Open 2020 Jul 1;3(7):e208748. Epub 2020 Jul 1.

Montreal Heart Institute, Department of Medicine, Université de Montréal, Montréal, Quebec, Canada.

Importance: Contemporary guidelines recommend that atrial fibrillation (AF) be classified based on episode duration, with these categories forming the basis of therapeutic recommendations. While pragmatic, these classifications are not based on pathophysiologic processes and may not reflect clinical outcomes.

Objective: To evaluate the association of baseline AF episode duration with post-AF ablation arrhythmia outcomes. Read More

Kans J Med 2020 25;13:143-146. Epub 2020 Jun 25.

University of Kansas School of Medicine-Wichita, Department of Surgery, Wichita, KS.

Introduction: The dose-dependent adverse events associated with post-operative opioid use may be reduced when opioids are used in conjunction with intravenous acetaminophen. The purpose of this study was to compare outcomes in median sternotomy patients receiving intravenous acetaminophen in addition to intravenous opioids versus intravenous opioids only.

Methods: A retrospective study was conducted on 122 adult patients undergoing median sternotomy at a regional tertiary-referral center. Read More

Zhonghua Er Ke Za Zhi 2020 Jul;58(7):576-580

Department of Cardiology, Tianjin Children's Hospital, Tianjin 300074, China.

To assess the feasibility and efficacy of radiofrequency catheter ablation (RFCA) of arrhythmias with low dose X-ray in children guided by three-dimensional mapping system. Fourteen children with tachyarrhythmia who were transferred to Tianjin Medical University General Hospital after being hospitalized in Tianjin Children's Hospital and underwent RFCA from April 2017 to May 2018 were included.The results of intraoperative electrophysiological examination, intraoperative X-ray dosage,the immediate success rateand complications of RFCA,and the recurrence during the follow-up for at least 6 months were recorded. Read More

J Intensive Care Med 2020 Jun 29:885066620934392. Epub 2020 Jun 29.

Division of Pulmonary, Critical Care and Sleep Medicine, Department of Medicine, , Warren Alpert School of Medicine at Brown University, Providence, RI, USA.

Background: Respiratory variation in carotid artery peak systolic velocity (ΔVpeak) assessed by point-of-care ultrasound (POCUS) has been proposed as a noninvasive means to predict fluid responsiveness. We aimed to evaluate the ability of carotid ΔVpeak as assessed by novice physician sonologists to predict fluid responsiveness.

Methods: This study was conducted in 2 intensive care units. Read More

Cureus 2020 Jun 21;12(6):e8739. Epub 2020 Jun 21.

Cardiovascular Medicine, Richmond University Medical Center, Staten Island, USA.

Atrial flutter is a rapid, regular atrial tachyarrhythmia that occurs most commonly in patients with underlying structural heart disease. Spontaneous 1:1 conduction of atrial flutter is indeed rare, but its diagnosis and management is of critical importance. We describe a case of a 65-year-old man with hypertension, preserved ejection fraction heart failure, end-stage renal disease, Parkinson's disease, and Alzheimer's dementia, in whom atrial flutter was associated with 1:1 atrioventricular conduction. Read More

Europace 2020 Jun 29. Epub 2020 Jun 29.

Bordeaux University Hospital (CHU), Cardiac Electrophysiology and Cardiac Stimulation Team, CHU Bordeaux, IHU Lyric, Université de Bordeaux, Avenue de Magellan, 33604 Bordeaux, France.

Aims : We hypothesized that an epicardial approach using ethanol infusion in the vein of Marshall (EIVOM) may improve the result of ablation for perimitral flutter (PMF).

Methods And Results : We studied 103 consecutive patients with PMF undergoing high-resolution mapping. The first 71 were treated with radiofrequency (RF) ablation alone (RF-group), and the next 32 underwent EIVOM followed by RF on the endocardial and epicardial mitral isthmus (EIVOM/RF-group). Read More

Am J Emerg Med 2020 Jun 2. Epub 2020 Jun 2.

Emergency Department, Klinikum Herford, Schwarzenmoorstr. 70, 32049 Herford, Germany. Electronic address:

Heart Rhythm 2020 Jun 23. Epub 2020 Jun 23.

Johns Hopkins Medical Institutions, Baltimore, MD, USA. Electronic address:

Background: Pulmonary vein isolation (PVI) is the cornerstone of catheter ablation to treat patients with symptomatic drug-refractory atrial fibrillation (AF).

Objectives: To assess the safety and efficacy of PVI using the cryoballoon catheter to treat patients with persistent AF.

Methods: STOP Persistent AF (NCT03012841) was a prospective, multicenter, single-arm, FDA-regulated trial designed to evaluate the safety and efficacy of PVI-only cryoballoon ablation for drug-refractory persistent AF (continuous episodes < 6 months). Read More

Front Pediatr 2020 10;8:280. Epub 2020 Jun 10.

Department of Pediatrics, Shengjing Hospital, China Medical University, Shenyang, China.

To explore the correlation between different phenotypes of arrhythmia and the prognosis in children with EFE/LVNC/DCM. A total of 167 children with cardiomyopathy diagnosed and treated in Shengjing Hospital between January 2010 and May 2019 were evaluated. After patient screening, 31 patients with endomyocardial fibroelastosis (EFE), left ventricular non-compaction, or dilated cardiomyopathy with significant arrhythmias were selected. Read More

Front Physiol 2020 10;11:558. Epub 2020 Jun 10.

Department of Cardiology, The First Affiliated Hospital of Dalian Medical University, Dalian, China.

Purpose: Cavotricuspid isthmus (CTI) ablation is an effective procedure for typical atrial flutter (AFL), but patients remain at an elevated risk for developing new atrial fibrillation (AF). Currently, there are limited data on the utility of CHADS-VASc score to predict new-onset AF after typical AFL ablation. In this study, we assessed whether the CHADS-VASc score is a useful predictor of new-onset AF after CTI ablation in typical AFL patients without a prior history of AF. Read More

Pediatr Int 2020 Jun 24. Epub 2020 Jun 24.

Department of Pediatrics, Japanese Red Cross Nagoya Daini Hospital, Nagoya, Aichi, Japan.

Int J Cardiol Heart Vasc 2020 Aug 16;29:100556. Epub 2020 Jun 16.

Cardiovascular Research Institute Basel, University Hospital Basel, University of Basel, Switzerland.

Aims: Atrial fibrillation (AF) and atrial flutter (AFL) are two of the most common atrial arrhythmias and often coexist. Many patients with AF or AFL are symptomatic, which impacts their quality of life (QoL). The purpose of this study was to determine whether coexistent AFL represents an added burden for AF patients. Read More

HeartRhythm Case Rep 2020 Jun 12;6(6):341-343. Epub 2020 Mar 12.

Center for Arrhythmia Care, Department of Medicine, Section of Cardiology, Pritzker School of Medicine, The University of Chicago Medicine, Chicago, Illinois.

HeartRhythm Case Rep 2020 Jun 25;6(6):318-321. Epub 2020 Feb 25.

AdventHealth Orlando Hospital, Orlando, Florida.

Pacing Clin Electrophysiol 2020 Jun 23. Epub 2020 Jun 23.

Division of Electrophysiology, Duke University Medical Center, Durham, NC.

Background: Cardiac amyloidosis is a progressive infiltrative disease involving deposition of amyloid fibrils in the myocardium and cardiac conduction system that frequently manifests with heart failure (HF) and arrhythmias, most frequently atrial fibrillation (AF), atrial flutter (AFL), and atrial tachycardia (AT).

Methods: We performed an observational retrospective study of patients with a diagnosis of cardiac amyloid who underwent catheter ablation at our institution between January 1, 2011 and December 1, 2018. Patient demographics, procedural characteristics and outcomes were determined by manual chart review. Read More

Pol Merkur Lekarski 2020 Jun;48(285):204-208

Department of Electrocardiology, the John Paul II Hospital, Kraków, Poland; Institute of Cardiology, Jagiellonian University Medical College, Kraków, Poland.

Atrial flutter (AFL) is one of the most common arrhythmias present in clinical practice, both for the GPs and cardiologist practice. After atrial fibrillation (AF) is second the most common supraventricular arrhythmia. This usually occurs along the cavo-tricuspid isthmus of the right atrium though atrial flutter can originate from the left atrium as well. Read More

J Electrocardiol 2020 Apr 24;61:106-111. Epub 2020 Apr 24.

Department of Cardiac Electrophysiology, University of Iowa, IA, USA.

Mapping and ablation of perimitral flutter, a macro-reentrant tachycardia, can be sometimes challenging. We describe a case of perimitral atrial flutter following the pulmonary vein isolation in which mitral isthmus ablation failed to terminate the arrhythmia due to epicardial-endocardial breakthrough via the muscle fibers of coronary sinus. Ultra-high-definition mapping system was utilized to locate the epicardial bridge, and spot ablation of the lesion subsequently terminated the arrhythmia. Read More

Am J Med 2020 Jun 17. Epub 2020 Jun 17.

Department of Anaesthesiology, First Affiliated Hospital, School of Medicine, Zhejiang University, Hangzhou, Zhejiang, China. Electronic address:

J Cardiovasc Electrophysiol 2020 Jun 20. Epub 2020 Jun 20.

Electrophysiology Section, Cardiovascular Division, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.

J Cardiovasc Electrophysiol 2020 Jun 20. Epub 2020 Jun 20.

Department of cardiology, Rouen University Hospital, Rouen, France.

Background: The coronary sinus (CS) is surrounded by a myocardial coat with extensive connections to the left and right atria that contributes to interatrial electrical connection. Whereas epicardial connections between CS musculature and the left atrium have largely been demonstrated, clinically relevant epicardial connections from the CS musculature toward the low right atrium (LRA) and epicardial connections between two regions of the right atrium remain questionable.

Methods: Five patients underwent electrophysiology (EP) study for typical atrial flutter (AFl) using either conventional multipolar catheters (4 patients) or 3D high-density mapping system (1 patient). Read More

J Cardiovasc Electrophysiol 2020 Jun 17. Epub 2020 Jun 17.

Department of Cardiology, Tokyo Women's Medical University, Shinjuku-ku, Tokyo, Japan.

Introduction: Screening of coexistent typical atrial flutter (AFL) in patients with atrial fibrillation (AF) is sometimes challenging. This study investigated whether a prolonged right atrial conduction time (RACT) estimated by tissue Doppler imaging (TDI) predicts patients with concomitant AFL and AF.

Methods And Results: We retrospectively analyzed 398 patients (mean age: 61. Read More

J Interv Card Electrophysiol 2020 Jun 16. Epub 2020 Jun 16.

Division of Cardiology, Department of Internal Medicine, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, 222, Banpo-daero, Seocho-gu, Seoul, 06591, Republic of Korea.

Purpose: Organized atrial tachycardia (AT) accounts for a substantial proportion of recurrence after radiofrequency catheter ablation (RFCA) for atrial fibrillation (AF). We sought to analyze the characteristics and long-term outcome of redo RFCA for recurrent AT compared with those for recurrent AF.

Methods: We analyzed 133 patients who underwent prior AF ablation and presented for redo RFCA procedure. Read More

Arch Dis Child Fetal Neonatal Ed 2020 Jun 16. Epub 2020 Jun 16.

Department of Paediatric Subspecialities, KK Women's and Children's Hospital, Singapore

Georgian Med News 2020 Apr(301):7-13

National Pirogov Memorial Medical University, Vinnytsya, Ukraine.

The aim of the research - to study the effect of carbopneumoperitoneum on the possibility of laparoscopic surgery in patients with cardiac rhythm disorders and conduction disturbances. We conducted analysis of 940 patients who underwent laparoscopic surgery. The patients were divided into two groups. Read More

J Cardiovasc Electrophysiol 2020 Jun 12. Epub 2020 Jun 12.

Montefiore Medical Center, Albert Einstein College of Medicine, Bronx, New York.

Background: Pulmonary vein isolation (PVI) is the mainstay of catheter ablation (CA) for paroxysmal atrial fibrillation (AF). However, for persistent and long-standing persistent AF, there are no established strategies to improve the success rate of CA. Despite studies indicating that prophylactic cavotricuspid isthmus (CTI) ablation provides no or limited incremental benefit in patients with AF, it is still routinely performed worldwide. Read More

J Arrhythm 2020 Jun 27;36(3):386-394. Epub 2020 Apr 27.

Department of Cardiology and Vascular Medicine Faculty of Medicine Universitas Indonesia National Cardiovascular Center Harapan Kita Jakarta Indonesia.

Introduction: This systematic review and meta-analysis aimed to assess the latest evidence on the use of renal denervation (RDN) + pulmonary vein isolation (PVI) compared to PVI alone for treating atrial fibrillation (AF) with hypertension.

Methods: A systematic literature search from several electronic databases was performed up until January 2020. The primary outcome was AF recurrence defined as AF/atrial flutter (AFL)/atrial tachycardia (AT) ≥30 seconds at 12-month follow-up and the secondary outcome was procedure-related complications. Read More

Heart Surg Forum 2020 May 13;23(3):E300-E304. Epub 2020 May 13.

Department of Thoracic and Cardiovascular Surgery, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, China.

Background: Electrical cardioversion (ECV) often is required for terminating recurrent atrial fibrillation (AF) after surgical radiofrequency ablation in patients undergoing mitral valve surgery. However, ECV is unsuccessful in some cases. In this study, we aimed to identify possible predictors of failed ECV for recurrent atrial fibrillation following mitral valve surgery with concomitant radiofrequency ablation. Read More

Cureus 2020 May 5;12(5):e7979. Epub 2020 May 5.

Cardiology, Hartford Hospital, Hartford, USA.

Milrinone is a phosphodiesterase three inhibitor used as an inotrope in patients with advanced heart failure with reduced ejection fraction (HFrEF). Its action is independent of β-receptor stimulation, which makes it preferable in patients who are on β blockers as part of a guideline-directed neurohormonal blockade. There have been numerous studies evaluating the risks, benefits, and mortality associated with milrinone in the management of chronic heart failure patients. Read More

Heart Lung 2020 Jun 7. Epub 2020 Jun 7.

Centre for Cardiac, Vascular, Pulmonary and Infectious Diseases, Rigshospitalet, Copenhagen University Hospital, Blegdamsvej 9, 2100 Copenhagen O, Denmark; Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, 2100 Copenhagen N, Denmark; University College Copenhagen, Institute for Nursing and Nutrition, Tagensvej 86, 2200 Copenhagen N, Denmark. Electronic address:

Background: Atrial fibrillation (AF) and atrial flutter (AFL) are cardiac arrhythmias associated with cardiovascular morbidity. Physical activity (PA) can trigger AF and AFL recurrence, but can also improve physical functional capacity in this patient group. Guidelines do not include concrete recommendations regarding PA for this patient group. Read More

Trials 2020 Jun 10;21(1):513. Epub 2020 Jun 10.

Section of Respiratory Medicine, Department of Medicine, Herlev and Gentofte Hospital University of Copenhagen, Hellerup, Denmark.

Objectives: The aim of this randomised GCP-controlled trial is to clarify whether combination therapy with the antibiotic azithromycin and hydroxychloroquine via anti-inflammation/immune modulation, antiviral efficacy and pre-emptive treatment of supra-infections can shorten hospitalisation duration for patients with COVID-19 (measured as "days alive and out of hospital" as the primary outcome), reduce the risk of non- invasive ventilation, treatment in the intensive care unit and death.

Trial Design: This is a multi-centre, randomised, Placebo-controlled, 2-arm ratio 1:1, parallel group double-blind study.

Participants: 226 participants are recruited at the trial sites/hospitals, where the study will take place in Denmark: Aalborg, Bispebjerg, Gentofte, Herlev, Hillerød, Hvidovre, Odense and Slagelse hospitals. Read More

Open Heart 2020 6;7(1):e001229. Epub 2020 Apr 6.

Cardiovascular Medicine, Mayo Clinic, Rochester, Minnesota, USA.

Objective: Previous studies have postulated a causal role of patent foramen ovale (PFO) in the aetiology of embolic stroke in the general population. We hypothesised that the presence of concomitant PFO and atrial fibrillation (AF) will add incremental risk of ischaemic stroke to that linked to AF alone.

Methods: We analysed data on 3069 consecutive patients (mean age 69. Read More

Cardiovasc Revasc Med 2020 May 29. Epub 2020 May 29.

Department of Cardiology, Leiden University Medical Center, 2300 RC Leiden, the Netherlands. Electronic address:

Objectives: The impact of atrial ischemia in the occurrence of atrial arrhythmias may vary based on the amount of jeopardized myocardium. We sought to determine the association between coronary flow impairment in dominant coronary atrial branches (CAB) and atrial arrhythmias at 1-year follow-up in ST-segment elevation myocardial infarction (STEMI) patients.

Methods: Patients with STEMI involving the right or circumflex coronary artery were included. Read More

Ann Endocrinol (Paris) 2020 Jun 5. Epub 2020 Jun 5.

Département d'EDN, Centre de Référence de la Thyroide et des Récepteurs Hormonaux, CHU Angers, 49933 Angers, France; Institut MITOVASC, Université d'Angers, 49000 Angers, France.

Thyroid hormones exert their action by binding to their thyroid hormone receptors among other mechanisms. They are involved in different cardiac functions, including contractility and rhythm. The mutation of thyroid hormone receptor β is the main cause of thyroid hormone resistance. Read More

Eur Heart J Qual Care Clin Outcomes 2020 Jun 5. Epub 2020 Jun 5.

Department of Cardiology, Aalborg University Hospital, Denmark.

Aims: To investigate wheather incident Atrial fibrillation or flutter (AF) diagnosis increases the risk of psychiatric outcomes compared to the general population.

Methods And Results: First-time AF patients and population controls naïve to psychiatric disease or filled presciptions for psychotropic drugs were identified in Danish nationwide registries during 2005-2014. AF patients were matched 1:2 with exposure density matching. Read More

Kardiol Pol 2020 Jun 3. Epub 2020 Jun 3.

Background: Predictors of long-term outcome and optimal catheter set for ablation of cavo-tricuspid isthmus (CTI) in patients with atrial flutter (AFL) are not well known.

Aims: To identify predictors of events during outcome following ablation.

Methods: We studied 741 patients (mean 62. Read More

J Physiol 2020 Jun 4. Epub 2020 Jun 4.

Yonsei University Health System, Seoul, Republic of Korea.

Key Points: The interatrial conduction, including Bachmann's bundle, the posterior septal conduction, the anterior septal conduction, and the cavo-tricuspid isthmus, contributes to the maintenance mechanisms of atrial fibrillation in a 3D biatrial model. The interatrial conduction ablation including a cavo-tricuspid isthmus ablation significantly affects the wave dynamics of atrial fibrillation (AF) and facilitates the AF termination or atrial tachycardia conversion of the AF after the circumferential pulmonary vein isolation. Additional cavo-tricuspid isthmus ablation after the circumferential pulmonary vein isolation improves long-term rhythm outcome after clinical AF catheter ablation. Read More

J Innov Card Rhythm Manag 2019 May 15;10(5):3642-3650. Epub 2019 May 15.

Section of Electrophysiology, Division of Cardiovascular Disease, The Institute for Heart and Vascular Health, Einstein Medical Center, Philadelphia, PA, USA.

Contact impedance mapping can differentiate focal atrial tachyarrhythmias from macroreentry (atrial flutter) and localized reentry (atrioventricular nodal reentry tachycardia) by detecting different patterns of regional unipolar tissue impedance distribution. Specifically, focal atrial tachycardia (AT) is characterized by the finding of a contiguous low-impedance area (CLIA) adjacent to the site of origin, surrounded by normal tissue impedance levels. However, it remains unclear whether or not this finding could distinguish different mechanisms of focal AT. Read More

J Clin Ultrasound 2020 Jun 3. Epub 2020 Jun 3.

Department of ultrasonography, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan, China.

Coronary artery fistula (CAF) is a rare cardiac anomaly. Here, we diagnosed a right coronary artery-right atrium fistula with giant coronary artery aneurysm (CAA) via fetal echocardiography at 35 weeks' gestation. An urgent caesarean delivery was performed at 36 weeks' gestation because CAA caused mitral obstruction, and fetal atrial flutter was present. Read More

Arq Bras Cardiol 2020 Jun;114(5):783-785

Instituto de Cardiologia do Distrito Federal, Brasília, DF - Brasil.

Cureus 2020 May 27;12(5):e8311. Epub 2020 May 27.

Internal Medicine, Jersey Shore University Medical Center, Neptune City, USA.

Amiodarone is a class III antiarrhythmic agent that inhibits adrenergic stimulation by blocking alpha and beta receptors. It prolongs action potential and refractory period in myocardial tissue. Its remarkably long half-life is associated with a myriad of adverse events. Read More

BMC Cardiovasc Disord 2020 Jun 1;20(1):263. Epub 2020 Jun 1.

General Internal Medicine Division, Beaumont Health, Royal Oak, MI, USA.

Background: The benefit of combining aspirin and direct oral anticoagulants on the reduction of cardiovascular events in atrial fibrillation or flutter is not well studied. We aimed to assess whether concurrent aspirin and direct oral anticoagulant therapy for atrial fibrillation or flutter will result in less coronary, cerebrovascular and systemic ischemic events compared to direct oral anticoagulant therapy alone.

Methods: Retrospective study of adult patients between 18 and 100 years old who have nonvalvular atrial fibrillation or flutter and were started on a direct oral anticoagulant (apixaban, rivaroxaban, or dabigatran), between January 1, 2010 and September 1, 2015 within the Beaumont Health System. Read More

Kardiol Pol 2020 Jun 2. Epub 2020 Jun 2.

Background: Catheter ablation is an effective treatment for patients with atrial fibrillation (AF). Despite increasing availability of the procedure, current treatment patterns of invasive AF treatment in Poland are unknown.

Aim: The aim of the study was to assess contemporary AF ablation approaches in Poland, such as: target population, patients' characteristics, ablation techniques, procedural results and complication rates. Read More

Circ Cardiovasc Imaging 2020 Jun;13(6):e010273

Department of Cardiovascular and Thoracic Sciences, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy (R.L., E.P., F.G., A.M.L., M.G., F.C., M.M.).

Medicina (Kaunas) 2020 May 28;56(6). Epub 2020 May 28.

Division of Gastroenterology, Department of Internal Medicine, Taitung MacKay Memorial Hospital, Taitung 95054, Taiwan.

Recent randomized trials of oral antithrombotic drugs with atrial flutter (AFL) excluded patients with renal impairment because of their increased risk of bleeding. To date, no relevant studies have assessed the effectiveness and safety of different antithrombotic drugs in chronic kidney disease (CKD) patients with AFL. This cohort study evaluated the effectiveness and safety of different antithrombotic drugs in CKD patients with AFL. Read More

Medicine (Baltimore) 2020 May;99(21):e19970

Department of Cardiology, Poznań University of Medical Sciences.

Introduction: The RF ablation of ventricular tachycardia (VT) or atrial flutter (AFl) can be unsuccessful due to lack of lesion transmurality. Bipolar ablation (BA) is more successful than unipolar ablation (UA). The purpose of our study was to investigate the long-term effect of BA ablation in patients after failed UA. Read More

J Innov Card Rhythm Manag 2019 Dec 15;10(12):3919-3922. Epub 2019 Dec 15.

Jefferson Heart Institute, Philadelphia, PA, USA.

This report discusses the mapping of an incomplete cavotricuspid isthmus flutter line with a high-density mapping catheter to visualize the arrhythmogenic substrate responsible for incomplete block. The relevant signals were unapparent when using a traditional ablation catheter but were evident with application of a high-density mapping catheter. High-density mapping holds promise for recording electrograms in gaps in other ablation lesion sets that may not be able to be easily identified using more traditional equipment alone. Read More

J Innov Card Rhythm Manag 2019 Oct 15;10(10):3842-3847. Epub 2019 Oct 15.

Division of Cardiovascular Medicine, University Hospitals Cleveland Medical Center, Cleveland, OH, USA.

Atrial fibrillation (AF) is often treated with antiarrhythmic drugs (AADs) or catheter ablation. In a unique subset of patients, AF can convert to atrial flutter (AFL) after the initiation of an AAD. It has previously been shown that, in this subset of patients, cavotricuspid isthmus (CTI) ablation followed by the continuation of the AAD regimen has an unusually high rate of successfully maintaining sinus rhythm. Read More

Clin Case Rep 2020 May 21;8(5):852-854. Epub 2020 Feb 21.

Cardiovascular Division National Hospital Organization Osaka-Minami Medical Center Kawachi-Nagano Japan.

To detect detouring gap conduction, as demonstrated in this case, 3-D mapping is useful in addition to conventional methods. Read More

Heart Rhythm 2020 May 26. Epub 2020 May 26.

Mayo Clinic/St. Marys Campus, Rochester, Minnesota, USA. Electronic address:

Background: The cryoballoon (CB) catheter is an established tool for isolation of the pulmonary veins (PVI), however, its use is limited to that end.

Objective: This study was conducted to investigate biophysical properties of a newly developed linear cryoablation catheter (LC) for creation of linear ablation lesions in an in vivo model.

Methods: Twenty-nine (14 acutely ablated, 15 chronically followed) dogs underwent cryoablation using the LC. Read More