Article
Cardiac & Cardiovascular Systems
Jakub Baran, Martyna Skrzynska-Kowalczyk, Roman Piotrowski, Agnieszka Sikorska, Tomasz Krynski, Piotr Kulakowski
Summary: This study analyzed the contact force values during successful ablation procedures of arrhythmias originating from the left ventricular papillary muscles. The results showed that the average contact force in papillary muscle ablations is much lower than in other foci, which questions the role of contact force measurement in these ablations.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2023)
Article
Cardiac & Cardiovascular Systems
Anurut Huntrakul, Miki Yokokawa, Michael Ghannam, Jackson Liang, Smita Patel, Hubert Cochet, Rakesh Latchamsetty, Krit Jongnarangsin, Fred Morady, Frank Bogun
Summary: Multimodality imaging can reveal the anatomical details of papillary muscles (PAPs), facilitating mapping and ablation of ventricular arrhythmias (VAs). Over a third of PAP VAs originate from connections between PAPs and the surrounding myocardium or between other PAPs, with different electrocardiographic morphologies compared to VAs originating from the PAP body.
Article
Cardiac & Cardiovascular Systems
Jennifer Chee, Aung N. Lin, Howard Julien, David Lin, Robert D. Schaller, David S. Frankel, Gregory E. Supple, Pasquale Santangeli, Michael P. Riley, Saman Nazarian, Rajat Deo, Jeffrey Arkles, Ramanan Kumareswaran, Matthew C. Hyman, Gustavo Guandalini, Andrew E. Epstein, Erica S. Zado, David J. Callans, Francis E. Marchlinski, Sanjay Dixit
Summary: Lesions delivered during catheter ablation of ventricular arrhythmias originating from left ventricular papillary muscles can be safely performed without adverse impact on mitral valve function, as demonstrated by this study.
JACC-CLINICAL ELECTROPHYSIOLOGY
(2022)
Review
Cardiac & Cardiovascular Systems
Akihiko Nogami, Yuki Komatsu, Ahmed Karim Talib, Wipat Phanthawimol, Qasim J. Naeemah, Tetsuya Haruna, Itsuro Morishima
Summary: This article discusses Purkinje-related arrhythmias, including four specific ventricular tachycardias such as verapamil-sensitive fascicular ventricular tachycardia (FVT). The Purkinje system plays an important role in the initiation and maintenance of ventricular fibrillation, and its development and abnormalities are associated with arrhythmogenesis. Catheter ablation of trigger ventricular premature complexes and/or de-networking of the Purkinje system can be used as electrical bailout therapy.
JACC-CLINICAL ELECTROPHYSIOLOGY
(2023)
Review
Medicine, General & Internal
Riyaz A. Kaba, Aziz Momin, John Camm
Summary: Atrial fibrillation is a global disease associated with various serious complications, making treatment complex and challenging. A large proportion of patients have persistent or long-standing persistent AF, posing greater treatment challenges.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Cardiac & Cardiovascular Systems
Min Kim, Yoon Jung Park, Hee Tae Yu, Tae-Hoon Kim, Jae-Sun Uhm, Boyoung Joung, Hui-Nam Pak, Moon-Hyoung Lee
Summary: A 74-year-old woman with incessant wide complex tachycardia was successfully treated with radiofrequency catheter ablation. However, an asymptomatic pseudoaneurysm was detected at the ablation site two months after the procedure.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2022)
Review
Biochemistry & Molecular Biology
Andrei Alexandru Mircea, Mihaela Rusu, Elisa Anamaria Liehn, Octavian Bucur
Summary: This review focuses on newly developed strategies, such as vernakalant and stereotactic ablative therapy, for the treatment of arrhythmias. These therapies are important for improving the management of atrial fibrillation and ventricular tachycardia, offering higher success rates and lower costs.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Medicine, General & Internal
Takumi Yamada, Krittapoom Akrawinthawong
Summary: When the left ventricular papillary muscles are very thick, premature ventricular contractions (PVCs) may arise from the sides of the papillary muscles facing each other, making mapping and catheter ablation challenging.
CLINICAL CASE REPORTS
(2021)
Article
Cardiac & Cardiovascular Systems
Daehoon Kim, Hee Tae Yu, Tae-Hoon Kim, Jae-Sun Uhm, Boyoung Joung, Moon-Hyoung Lee, Hui-Nam Pak
Summary: This study found that adding POBI to CPVI did not improve rhythm outcomes or affect overall safety in patients undergoing redo AF ablation with reconnected PVs, but it led to a longer ablation time compared to CPVI alone.
JACC-CLINICAL ELECTROPHYSIOLOGY
(2022)
Article
Medicine, General & Internal
Tongshuai Chen, Lujie Chang, Bing Rong, Kai Zhang, Guanqi Fan, Jing Kong, Mingying Ling, Qingyu Kong, Kellina Maduray, Cuifen Zhao, Jingquan Zhong
Summary: Objective: This study aimed to investigate the clinical features, radiological and pathological characteristics, prognostic factors, and outcomes of patients with pulmonary arterial hypertension (PAH) complicated with coronary heart disease, heart failure, or arrhythmia. The clinical data, cardiac function, radiological findings, and pathological examination results of 15 patients with PAH and dual-source atrial fibrillation treated between January 2014 and January 2019 were analyzed, and the relevant factors were evaluated. Results: The data showed that the degree of coronary heart disease significantly influenced the clinical manifestations of patients with PAH, with a higher incidence of severe pulmonary artery lesions, allergic bronchopulmonary aspergillosis (ABPA), and persistent pulmonary hypertension (PCH). Further analysis revealed various clinical features of ABPA, which could be well detected through clinical examination and radiological imaging. Follow-up findings indicated a poor prognosis in patients with PAH with a significant correlation with the severity of coronary heart disease, and worse prognosis in patients with ABPA when coronary heart disease was more severe.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Cardiac & Cardiovascular Systems
Sung Il Im, Satoshi Higuchi, Adam Lee, Carol Stillson, Eric Buck, Blake Morrow, Kit Schenider, Molly Speltz, Edward P. Gerstenfeld
Summary: This study assessed the lesion characteristics of pulsed field ablation (PFA) and radiofrequency energy (RFA) in healthy and infarcted myocardium. The results showed that PFA effectively ablates surviving islands of myocardium and holds promise for treating infarct-related ventricular tachycardia.
JACC-CLINICAL ELECTROPHYSIOLOGY
(2022)
Article
Cardiac & Cardiovascular Systems
John Whitaker, Uyanga Batnyam, Sunil Kapur, William H. Sauer, Usha Tedrow
Summary: The right ventricular moderator band and papillary muscle complex is an uncommon source of ventricular arrhythmias. This study reviewed the institutional experience of RV MB-PM arrhythmia ablation and compared the outcomes of RF ablation and cryoablation. The results showed that cryoablation offered improved catheter stability and reduced propensity for automaticity during ablation.
JACC-CLINICAL ELECTROPHYSIOLOGY
(2022)
Article
Medicine, General & Internal
Melanie A. Gunawardene, Gerrit Frommeyer, Christian Ellermann, Mario Jularic, Patrick Leitz, Jens Hartmann, Philipp Sebastian Lange, Omar Anwar, Benjamin Rath, Rahin Wahedi, Lars Eckardt, Stephan Willems
Summary: This study aimed to investigate the efficacy and safety of left atrial posterior wall isolation (LAPWI) performed by non-thermal pulsed field ablation (PFA) in catheter ablation (CA) for persistent atrial fibrillation (persAF). The results showed that PFA-guided LAPWI is feasible and safe in patients undergoing CA for persAF and shows favorable outcomes.
JOURNAL OF CLINICAL MEDICINE
(2023)
Letter
Medicine, General & Internal
Isaac W. Leon-acuna, Takeki Suzuki
Summary: Andrade et al. found that initial catheter cryoballoon ablation strategy resulted in lower incidence of persistent atrial fibrillation and lower arrhythmia burden compared to antiarrhythmic drug therapy in patients with paroxysmal atrial fibrillation during 3 years of follow-up. The study builds upon the findings of the EARLY-AF trial and the STOP AF First trial. Due to the relatively small sample size (303 patients) and short follow-up period, it may be difficult to detect mortality benefits of cryoballoon ablation.
NEW ENGLAND JOURNAL OF MEDICINE
(2023)
Article
Cardiac & Cardiovascular Systems
Vanessa Sciacca, Thomas Fink, Denise Guckel, Mustapha El Hamriti, Moneeb Khalaph, Martin Braun, Christian Sohns, Philipp Sommer, Guram Imnadze
Summary: The study examines the feasibility and effectiveness of catheter ablation with specific Purkinje de-networking (PDN) in patients with recurrent VF. By ablating Purkinje fibers, non-inducibility of any ventricular arrhythmia was achieved in all patients.
FRONTIERS IN CARDIOVASCULAR MEDICINE
(2022)