18,631 results match your criteria Atrial Tachycardia


Incidence and predictors of cardiac arrhythmias in patients with COVID-19 induced ARDS.

J Cardiol 2022 May 16. Epub 2022 May 16.

Department of Cardiology II - Electrophysiology, University Hospital Muenster, Albert-Schweitzer-Campus 1, Muenster, Germany.

Introduction: Recent studies suggest cardiac involvement with an increased incidence of arrhythmias in the setting of coronavirus disease 2019 (COVID-19). The aim of this study was to evaluate the risk of potentially lethal arrhythmias and atrial fibrillation in patients with COVID-19-induced acute respiratory distress syndrome (ARDS) and to elicit possible predictors of arrhythmia occurrence.

Methods And Results: A total of 107 patients (82 male, mean age 60 ± 12 years, median body mass index 28 kg/m) treated for COVID-19-induced ARDS in a large tertiary university hospital intensive care unit between March 2020 and February 2021 were retrospectively analyzed. Read More

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Electrical Posterior Box Isolation in Repeat Ablation for Atrial Fibrillation: A Prospective Randomized Clinical Study.

JACC Clin Electrophysiol 2022 May 23;8(5):582-592. Epub 2022 Feb 23.

Yonsei University Health System, Seoul, Republic of Korea. Electronic address:

Objectives: This study investigated whether additional electrical posterior box isolation (POBI) may improve the rhythm outcome of repeat ablation in atrial fibrillation (AF).

Background: Although electrically reconnected pulmonary veins (PVs) are the main mechanism of AF recurrence, it is unclear whether linear ablation in addition to circumferential PV isolation (CPVI) improves rhythm outcomes after repeat ablation.

Methods: The authors prospectively randomized 150 patients with PV reconnection undergoing redo procedures to either a CPVI-alone group (n = 75) or an additional POBI group (n = 75). Read More

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The efficacy of pacemaker implantation for extracardiac total cavopulmonary connection in a pediatric patient with bradycardia-tachycardia syndrome.

J Cardiol Cases 2022 May 22;25(5):255-258. Epub 2021 Nov 22.

Department of Pediatrics, Toyama Prefectural Central Hospital, 2-2-78 Nishinagae-cho, Toyama-shi, Toyama, 930-8550, Japan.

A 9-year-old boy, diagnosed with double outlet right ventricle after birth, suffered sinus node dysfunction and non-sustained junctional tachycardia after an extracardiac total cavopulmonary connection (TCPC). Spontaneous atrial tachycardia appeared 3 years after an extracardiac TCPC. Sotalol was administered but the bradycardia was obvious. Read More

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A case of torsades de pointes due to takotsubo cardiomyopathy after common atrial flutter ablation.

J Cardiol Cases 2022 May 25;25(5):275-278. Epub 2021 Nov 25.

Ishikawa Prefectural Central Hospital, Department of Cardiology, 2-1 Kuratsuki Higashi, Kanazawa City, Ishikawa Prefecture, Japan.

Takotsubo cardiomyopathy (TCM) is a transient acute cardiac disorder often associated with QT prolongation, but this rarely leads to torsades de pointes (TdP). Additionally, it is a rare complication of catheter ablation. Here we report a case of TCM that developed after catheter ablation for common atrial flutter, which led to TdP. Read More

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The Transition from Fetal to Neonatal Supraventricular Tachycardia: What is the Role of Transesophageal Atrial Pacing?

Heart Rhythm 2022 May 14. Epub 2022 May 14.

Division of Cardiology, Department of Pediatrics, Children's Wisconsin, Milwaukee, Wisconsin; Professor of Pediatrics and Biomedical Engineering, Medical College of Wisconsin, 8701 Watertown Plank Road, Milwaukee, WI 53226. Electronic address:

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Anatomical knowledge for the ablation of left and right atrial flutter.

Herzschrittmacherther Elektrophysiol 2022 May 17. Epub 2022 May 17.

Unidad de Arritmias, Departamento de Cardiología, Hospital Universitario Quirón-Salud Madrid and Complejo Hospitalario Ruber Juan Bravo, Universidad Europea de Madrid, 1 Diego de Velázquez, Madrid, Pozuelo de Alarcón, Spain.

The different forms of atrial flutter (AFL) and atrial macroreentrant tachycardias are strongly related to the atrial anatomy in structurally normal atria, and even more so in patients with dilated chambers or with previous interventions. Atrial anatomy, macro- and microscopic tissue disposition including myocardial fibers, conduction system and connective tissue is complex. This review summarizes knowledge of atrial anatomy for the interventional electrophysiologist to better understand the pathophysiology of and ablation options for these complex arrhythmias, as well as to perform catheter ablation procedures safely and effectively. Read More

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Stabilization of unstable reentrant atrial tachycardias via fractionated continuous electrical activity ablation (CHAOS study).

Cardiol J 2022 May 17. Epub 2022 May 17.

Arrhythmia Unit, Cardiology Department, University Hospital Ramón y Cajal, Madrid, Spain.

Background: Unstable reentrant atrial tachycardias (ATs) (i.e. those with frequent circuit modification or conversion to atrial fibrillation) are challenging to ablate. Read More

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A community-based study on electrocardiographic abnormalities of adult population from South India - Findings from a cross sectional survey.

Indian Heart J 2022 May 13. Epub 2022 May 13.

Achutha Menon Centre for Health Science Studies, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum Medical College, P.O., Thiruvananthapuram, Kerala, India. Electronic address:

Background: There are no data on electrocardiographic (ECG) findings from general population of Indian subcontinent. We analyzed ECG abnormalities of in adults as part of a community survey of prevalence of coronary artery disease and risk factors from South India.

Methods And Results: In this cross-sectional study of men and women between the ages 20 to 79 years, ECGs recorded digitally were analyzed using the Minnesota code. Read More

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Nonsustained atrial tachycardia in 24-hour Holter monitoring: a potential cardiac source of embolism in acute ischemic stroke.

Ann Transl Med 2022 Apr;10(8):433

Department of Neurology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.

Background: Whether nonsustained atrial tachycardia (NSAT) has a causative role similar to paroxysmal atrial fibrillation (AF) in ischemic stroke is unclear. We investigated the clinical and imaging features of ischemic stroke patients with NSAT to demonstrate that these patients would have a higher proportion of embolic strokes.

Methods: We retrospectively reviewed ischemic stroke patients who underwent Holter monitoring and selected patients with NSAT. Read More

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Zero Fluoroscopy Arrhythmias Catheter Ablation: A Trend Toward More Frequent Practice in a High-Volume Center.

Front Cardiovasc Med 2022 28;9:804424. Epub 2022 Apr 28.

Cardiology Department, Regional General Hospital "F. Miulli", Bari, Italy.

Background: Awareness of radiation exposure risks associated to interventional cardiology procedures is growing. The availability of new technologies in electrophysiology laboratories has reduced fluoroscopy usage during arrhythmias ablations. The aim of this study was to describe procedures with and without X-Rays and to assess feasibility, safety, and short-term efficacy of zero fluoroscopy intervention in a high-volume center oriented to keep exposure to ionizing radiation as low as reasonably achievable. Read More

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ECG Utilization Patterns of Patients With Arrhythmias During COVID-19 Epidemic and Post-SARS-CoV-2 Eras in Shanghai, China.

Front Cardiovasc Med 2022 27;9:829679. Epub 2022 Apr 27.

Department of Cardiology, Xinhua Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China.

Background: The COVID-19 pandemic has led to concerns around its subsequent impact on global health.

Objective: To investigate the health-seeking behavior, reflected by ECG utilization patterns, of patients with non-COVID-19 diseases during and after COVID-19 epidemic.

Methods: Taking advantage of the remote ECG system covering 278 medical institutions throughout Shanghai, the numbers of medical visits with ECG examinations during the lockdown (between January 23 and April 7, 2020), post-lockdown (between April 8 and December 31, 2020) and post-SARS-CoV-2 (between January 23 and April 7, 2021) periods were analyzed and compared against those during the same periods of the preceding years (2018 and 2019). Read More

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Swallowing-induced Paroxysmal Atrial Tachycardia Causes Weight Loss and Fainting During Mealtime: A Case Report and Literature Review.

Intern Med 2022 May 14. Epub 2022 May 14.

Department of Cardiology, Konan Medical Center, Japan.

Swallow or deglutition syncope is an unusual disorder. We herein report an 80-year-old man with paroxysmal atrial tachycardia induced by swallowing, causing syncope. Initially, we suspected a digestive disorder and found no significant findings. Read More

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Cardiac Crises: Cardiac Arrhythmias and Cardiomyopathy during TANGO2-deficiency related Metabolic Crises.

Heart Rhythm 2022 May 11. Epub 2022 May 11.

Department of Molecular and Human Genetics, Baylor College of Medicine, Houston, TX; Department of Molecular Physiology and Biophysics, Baylor College of Medicine, Houston TX.

Background: TANGO2 deficiency disorder (TDD) is an autosomal recessive disease associated with metabolic crisis, lethal cardiac arrhythmias, and cardiomyopathy. Data regarding treatment, management, and outcomes of cardiac manifestations of TDD are lacking.

Objective: Describe TDD-related cardiac crises. Read More

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The Influence of Frailty Syndrome and Dementia on the Convenience and Satisfaction with Oral Anticoagulation Treatment in Elderly Patients with Atrial Fibrillation.

Int J Environ Res Public Health 2022 Apr 28;19(9). Epub 2022 Apr 28.

Department of Clinical Nursing, Medical University, 51-618 Wroclaw, Poland.

Background: The impact of frailty syndrome (FS) and dementia on the convenience and satisfaction with oral anticoagulation (OAC) treatment in atrial fibrillation (AF) patients is not well-known.

Aim: Assessment the impact of FS and dementia on the convenience and satisfaction with OAC treatment in 116 elderly (mean age 75.2, SD = 8. Read More

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Arrhythmias and Their Electrophysiological Mechanisms in Takotsubo Syndrome: A Narrative Review.

Heart Lung Circ 2022 May 10. Epub 2022 May 10.

Department of Cardiology, Western Health, Melbourne, Vic, Australia.

Background: Takotsubo syndrome (TTS), an acute and usually reversible condition, is associated with both tachy- and bradyarrhythmias. Such arrhythmias can be life-threatening, e.g. Read More

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Giant lipoma in superior vena cava: A case report and literature review.

Int J Surg Case Rep 2022 May 6;95:107142. Epub 2022 May 6.

Department of Cardiothoracic and Vascular Surgery, National Cardiovascular Centre Harapan Kita, Jakarta, Indonesia; Department of Surgery, Faculty of Medicine, Universitas Indonesia, Indonesia.

Introduction: Intravascular lipomas are rare occurrences, especially in major vessels. This tumour is composed of adipocytes in a fibrous capsule that has a slow growth rate and usually shows no symptoms. There were only eight reports in the literature regarding intravascular lipoma located in the superior vena cava. Read More

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Development and Validation of a Prediction Model for Cardiovascular Events in Exercise Assessment of Coronary Heart Disease Patients After Percutaneous Coronary Intervention.

Front Cardiovasc Med 2022 26;9:798446. Epub 2022 Apr 26.

Department of Cardiology, Peking University Third Hospital, NHC Key Laboratory of Cardiovascular Molecular Biology and Regulatory Peptides, Key Laboratory of Molecular Cardiovascular Science, Ministry of Education, Beijing, China.

Objective: This study aimed to develop a model for predicting cardiovascular events in the exercise assessment of patients with coronary heart disease after percutaneous coronary intervention (PCI) based on multidimensional clinical information.

Methods: A total of 2,455 post-PCI patients who underwent cardiopulmonary exercise testing (CPET) at the Peking University Third Hospital from January 2016 to September 2019 were retrospectively included in this study; 1,449 post-PCI patients from January 2018 to September 2019 were assigned as the development cohort; and 1,006 post-PCI patients from January 2016 to December 2017 were assigned as the validation cohort. Clinical data of patients before testing and various indicators in the exercise assessment were collected. Read More

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Total activation mapping in a patient with an epicardial accessory pathway.

Ann Noninvasive Electrocardiol 2022 May 10:e12961. Epub 2022 May 10.

Department of Cardiovascular Medicine, Nippon Medical School, Tokyo, Japan.

A 42-year-old man was admitted for recurrent atrioventricular reciprocating tachycardia. We performed a total activation mapping, which included a range from the ventricular to atrial waves during right ventricular pacing. The mapping revealed a delayed ventriculoatrial conduction on the left lateral wall. Read More

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Partial and complete loss of myosin binding protein H-like cause cardiac conduction defects.

J Mol Cell Cardiol 2022 May 6;169:28-40. Epub 2022 May 6.

Center for Genetic Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL, United States of America. Electronic address:

A premature truncation of MYBPHL in humans and a loss of Mybphl in mice is associated with dilated cardiomyopathy, atrial and ventricular arrhythmias, and atrial enlargement. MYBPHL encodes myosin binding protein H-like (MyBP-HL). Prior work in mice indirectly identified Mybphl expression in the atria and in small puncta throughout the ventricle. Read More

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Atrial pacing to suppress ventricular arrhythmias in the critically ill patients: a case report.

Eur Heart J Case Rep 2022 May 16;6(5):ytac163. Epub 2022 Apr 16.

Cardiology Department, Royal Brompton Hospital, Sydney Street, London SW3 6NP, UK.

Background: Atrial and ventricular arrhythmias are common in the critically ill due to a variety of factors including sepsis, myocardial ischaemia, renal dysfunction, and electrolyte disturbances. Anti-arrhythmic medications can be useful to control arrhythmias but can result in bradycardia and haemodynamic compromise. A paced atrial rhythm alongside normal atrioventricular conduction can be helpful to treat bradycardia, prevent arrhythmias, and support cardiac output. Read More

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Hemothorax as an Occult Cause of Hypotension After Transseptal Puncture.

Am J Case Rep 2022 May 9;23:e936188. Epub 2022 May 9.

Department of Anesthesiology, Ghent University Hospital, Ghent, Belgium.

BACKGROUND Catheter ablation is an increasingly used treatment modality for arrhythmias. Periprocedural complications have a low incidence but can be life-threatening. Therefore, knowledge of possible risks during the intervention and early recognition improve patient outcomes. Read More

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DG-Mapping: a novel software package for the analysis of any type of reentry and focal activation of simulated, experimental or clinical data of cardiac arrhythmia.

Med Biol Eng Comput 2022 May 7. Epub 2022 May 7.

Department of Physics and Astronomy, Ghent University, Ghent, Belgium.

In this work, we present the release of a novel easy to use software package called DGM or Directed-Graph-Mapping. DGM can automatically analyze any type of arrhythmia to find reentry or focal sources if the measurements are synchronized in time. Currently, DGM requires the local activation times (LAT) and the spatial coordinates of the measured electrodes. Read More

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Effect of temporal resolution on the detection of cardiac arrhythmias using HRV features and machine learning.

Physiol Meas 2022 04 28;43(4). Epub 2022 Apr 28.

Biomedical Engineering Faculty, Technion-IIT, Haifa, Israel.

Arrhythmia is an abnormal cardiac rhythm that affects the pattern and rate of the heartbeat. Wearable devices with the functionality to measure and store heart rate (HR) data are growing in popularity and enable diagnosing and monitoring arrhythmia on a large scale. The typical sampling resolution of HR data available from non-medical grade wearable devices varies from seconds to several minutes depending on the device and its settings. Read More

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A Comprehensive Review on the Supraclavicular Flap for Head and Neck Reconstruction.

Ann Plast Surg 2022 Apr 4. Epub 2022 Apr 4.

Department of Plastic Surgery, University of Tennessee Health Science Center (UTHSC), Memphis, TN.

Abstract: The supraclavicular artery flap (SCF) is a highly vascularized fasciocutaneous flap overlying the shoulder. The flap was first described in 1979 by Lamberty but did not gain popularity until much later due to lack of a reliable technique. The main advantages of using the SCF include avoiding microsurgical techniques, requiring only a single-stage operation, shorter operative time compared with alternative options, and a wider patient population including those with comorbidities who may be excluded from more extensive operations including free flaps surgeries. Read More

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A frozen decade: Ten years outcome of atrial fibrillation ablation using a single shot device for pulmonary vein isolation.

J Cardiovasc Electrophysiol 2022 May 3. Epub 2022 May 3.

Clinic for Electrophysiology, Herz- und Diabeteszentrum NRW, Ruhr-Universität Bochum, Bad Oeynhausen, Germany.

Aims: Cryoballoon-guided pulmonary vein isolation (CB-PVI) for symptomatic atrial fibrillation (AF) has become an established treatment option with encouraging results in terms of safety and efficacy. Data reporting on long-term data beyond a follow-up (FU) period of 5 years is scarce. This prospective study aimed to evaluate very long-term outcome after CB-PVI for AF. Read More

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Temporal and geographical trends in women operators of electrophysiology procedures in the United States.

Heart Rhythm 2022 05;19(5):807-811

Division of Cardiovascular Medicine, Knight Cardiovascular Institute, Oregon Health & Science University, Portland, Oregon.

Background: Cardiac electrophysiology (EP) has few women physicians.

Objective: The purpose of this study was to determine temporal and geographical trends in the proportion of women EP operators in the United States.

Methods: We extracted data from the Medicare Provider Utilization and Payment Database from 2013 to 2019 using procedure codes for atrial fibrillation (AF) ablation, supraventricular tachycardia/atrial flutter (SVT/AFL) ablation, and cardiac device implantation. Read More

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2022 HRS expert consensus statement on evaluation and management of arrhythmic risk in neuromuscular disorders.

Heart Rhythm 2022 Apr 26. Epub 2022 Apr 26.

Mayo Clinic College of Medicine, Phoenix, Arizona.

This international multidisciplinary document is intended to guide electrophysiologists, cardiologists, other clinicians, and health care professionals in caring for patients with arrhythmic complications of neuromuscular disorders (NMDs). The document presents an overview of arrhythmias in NMDs followed by detailed sections on specific disorders: Duchenne muscular dystrophy, Becker muscular dystrophy, and limb-girdle muscular dystrophy type 2; myotonic dystrophy type 1 and type 2; Emery-Dreifuss muscular dystrophy and limb-girdle muscular dystrophy type 1B; facioscapulohumeral muscular dystrophy; and mitochondrial myopathies, including Friedreich ataxia and Kearns-Sayre syndrome, with an emphasis on managing arrhythmic cardiac manifestations. End-of-life management of arrhythmias in patients with NMDs is also covered. Read More

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[Therapeutic effect of a nasal swab: an accidental vagal manoeuvre in a patient with supraventricular tachycardia].

Ned Tijdschr Geneeskd 2022 03 17;166. Epub 2022 Mar 17.

Franciscus Gasthuis & Vlietland, afd. Cardiologie, Rotterdam.

Background: The case gives the reader a valuable insight in pathophysiology and treatment in atrioventricular nodal re-entry tachycardia (AVNRT) and vagal manoeuvres available to treat this phenomenon.

Case Description: A 85-year-old woman with a medical history of heart failure and aortic valve stenosis presents herself on the Emergency Department with cardiac shock and cardiac asthma. The ECG showed an AVNRT with 170 beats per minute (bpm) and a left bundle branch block (LBBB). Read More

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"Irregular" tachycardia atrial cycle length and activation sequence with relatively constant ventricular cycle length: What is the mechanism?

J Cardiovasc Electrophysiol 2022 May 2. Epub 2022 May 2.

Cardiac Electrophysiology Unit, First Department of Cardiology, TEDA International Cardiovascular Hospital, Tianjin, China.

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Mapping and Ablation of Isolated Frequent Symptomatic Premature Atrial Contractions in Patients With Structurally Normal Heart.

Front Cardiovasc Med 2022 12;9:862659. Epub 2022 Apr 12.

Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, China.

Background: The present study investigated the safety and efficacy of mapping and ablating isolated premature atrial contractions (PACs) in patients with a structurally normal heart, as well as whether the elimination of PACs by radiofrequency catheter ablation (RFCA) improved symptoms and the quality of life.

Methods: Forty-three consecutive patients with frequent, symptomatic, and drug-refractory PACs, but without atrial tachyarrhythmias (≥5 beats), were enrolled. In all patients, we performed physical, laboratory, and imaging examinations to exclude structural heart disease. Read More

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