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https://www.readbyqxmd.com/read/29780037/past-and-present-work-practices-of-european-interventional-cardiologists-in-the-context-of-radiation-protection-of-the-eye-lens-results-of-the-euraloc-study
#1
Joanna Karolina Domienik-Andrzejewska, Olivera Ciraj-Bjelac, Panagiotis Askounis, Peter Covens, Octavian Dragusin, Sophie Jacob, Jad Farah, Emilio Gianicolo, Renato Padovani, Pedro Manuel Peixoto Teles, Anders Widmark, Lara Struelens
This paper investigates over five decades of work practices in interventional cardiology with special emphasis on radiation protection. The analysis is based on the data from more than 400 cardiologists from different European countries recruited for EURALOC study collected in the period from 2014 to 2016. Information on the types of procedures performed and their annual mean number, fluoroscopy time, access site choice, X-ray units and radiation protection means used was collected using an occupational questionnaire...
May 21, 2018: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/29779892/-cardiac-compression-of-hydatid-origin
#2
I Bouassida, C Pricopi, G Mangiameli, A Arame, J B Auliac, B Gorbatai, M Riquet, F Le Pimpec Barthes
INTRODUCTION: Cardiac hydatid disease is uncommon and occurs in 0.5 to 2% of patients with hydatidosis. Isolated intrapericardial hydatid cystic disease is extremely rare. OBSERVATION: We report the case of a young woman with cardiac compression due to multiple primary intrapericardial hydatid cysts. Since 1 year, she had gradual general health deterioration including dyspnoea, sweats and weight loss of 8kg. A widening of the mediastinum was observed on chest X-ray...
May 17, 2018: Revue de Pneumologie Clinique
https://www.readbyqxmd.com/read/29760344/is-there-any-clinical-significance-of-the-acute-antral-lesion-size-after-pulmonary-vein-isolation-using-different-balloon-technologies-or-ablation-energy
#3
Tolga Aksu, Tümer Erdem Guler, Serdar Bozyel, Kazım Serhan Ozcan, Kivanc Yalin
No abstract text is available yet for this article.
May 12, 2018: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/29759785/manual-versus-robotic-catheter-ablation-for-the-treatment-of-atrial-fibrillation-the-man-and-machine-trial
#4
Andreas Rillig, Boris Schmidt, Luigi Di Biase, Tina Lin, Leonie Scholz, Christian H Heeger, Andreas Metzner, Daniel Steven, Peter Wohlmuth, Stephan Willems, Chintan Trivedi, Joseph G Galllinghouse, Andrea Natale, Feifan Ouyang, Karl-Heinz Kuck, Roland Richard Tilz
OBJECTIVES: Circumferential pulmonary vein isolation (CPVI) using irrigated radiofrequency is the most frequently used ablation technique for the treatment of atrial fibrillation worldwide. BACKGROUND: To date, no large randomized multicenter trials have evaluated the efficacy and safety of CPVI using robotic navigation (RN) systems compared with the current gold standard of manual ablation (MN). METHODS: In this prospective, international multicenter noninferiority trial, 258 patients with paroxysmal or persistent atrial fibrillation were randomized for CPVI using either RN (RN group, n = 131) or manual ablation (MN group, n = 127)...
August 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759774/assessment-of-left-atrial-fibrosis-by-late-gadolinium-enhancement-magnetic-resonance-imaging-methodology-and-clinical-implications
#5
REVIEW
Johannes Siebermair, Eugene G Kholmovski, Nassir Marrouche
Recently, studies using late gadolinium enhancement (LGE) magnetic resonance imaging (MRI) to identify structural changes of atrial tissue have contributed significantly to understanding the pathophysiology and progression of atrial fibrillation (AF). Moreover, imaging of atrial fibrosis using MRI has evolved to be a tool to improve clinical outcome of AF ablation procedures by allowing a patient-specific individualized management approach. LGE-MRI has been shown to predict AF ablation outcome based on pre-procedural imaging to define the extent of atrial fibrosis...
August 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759623/pulmonary-vein-isolation-with-a-pace-capture-guided-approach-durable-or-debatable
#6
EDITORIAL
Jonathan P Piccini, Peter A Noseworthy
No abstract text is available yet for this article.
November 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759622/5-year-outcome-of-pulmonary-vein-isolation-by-loss-of-pace-capture-on-the-ablation-line-versus-electrical-circumferential-pulmonary-vein-isolation
#7
Julia Moser, Arian Sultan, Jakob Lüker, Helge Servatius, Tim Salzbrunn, Manuel Altenburg, Benjamin Schäffer, Doreen Schreiber, Ruken Ö Akbulak, Julia Vogler, Boris A Hoffmann, Stephan Willems, Daniel Steven
OBJECTIVES: This study sought to compare long-term arrhythmia-free survival between electrical circumferential pulmonary vein isolation (PVI) and PVI with the endpoint of unexcitability along the ablation line. BACKGROUND: PVI is the standard ablation strategy of paroxysmal atrial fibrillation, although arrhythmia recurrence in long-term follow-up (FU) is high. The endpoint of unexcitability along the ablation line results in decreased arrhythmia recurrence compared to electrical PVI in 1-year FU...
November 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759532/therapeutic-approaches-to-atrial-fibrillation-ablation-targeting-atrial-fibrosis
#8
REVIEW
Hans Kottkamp, Doreen Schreiber, Fabian Moser, Andreas Rieger
Atrial fibrosis is the fundamental histopathologic finding in atrial fibrillation (AF) patients and an important predictor of ablation failure beyond pulmonary vein isolation. There is wide variation in the extent and localization of left atrial fibrosis in patients with paroxysmal and nonparoxysmal AF. Box isolation of fibrotic areas is an effective rhythm control concept in patients with paroxysmal AF despite durable pulmonary vein isolation, and this strategy has recently been implemented successfully in initial AF ablation procedures in addition to pulmonary vein isolation for patients with nonparoxysmal AF...
July 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759498/the-extent-of-mechanical-esophageal-deviation-to-avoid-esophageal-heating-during-catheter-ablation-of-atrial-fibrillation
#9
Chandrasekar Palaniswamy, Jacob S Koruth, Alexander J Mittnacht, Marc A Miller, Subbarao Choudry, Rahul Bhardwaj, Dinesh Sharma, Jonathan M Willner, Sujata S Balulad, Elizabeth Verghese, Georgios Syros, Anurag Singh, Srinivas R Dukkipati, Vivek Y Reddy
OBJECTIVES: This study sought to determine the extent of lateral esophageal displacement required during mechanical esophageal deviation (MED) and to eliminate luminal esophageal temperature elevation (LETElev ) during pulmonary vein (PV) isolation. BACKGROUND: MED is a conceptually attractive strategy of minimizing esophageal injury while allowing uninterrupted energy delivery along the posterior left atrium during PV isolation. METHODS: MED was performed using a malleable metal stylet within a plastic tube placed within the esophagus...
October 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759494/impact-of-lowering-irrigation-flow-rate-on-atrial-lesion-formation-in-thin-atrial-tissue-preliminary-observations-from-experimental-and-clinical-studies
#10
Saurabh Kumar, Jorge Romero, William G Stevenson, Lori Foley, Ryan Caulfield, Akira Fujii, Shinichi Tanigawa, Laurence M Epstein, Bruce A Koplan, Usha B Tedrow, Roy M John, Gregory F Michaud
OBJECTIVES: The authors sought to investigate the effect of low irrigation flow rate on lesion characteristics and ablation outcomes in a clinicopathological study. BACKGROUND: Irrigated ablation produces deeper lesions compared with nonirrigated ablation, which may not be desirable in the thin-walled posterior left atrium (LA), where collateral esophageal injury is possible. METHODS: Lesions were placed on the smooth posterior right atrium in 20 swine and posterior LA in 60 patients at a maximum power of 20 to 25 W with either: 1) power-controlled ablation at an irrigation flow rate of 17 ml/min (high-flow group 10 swine; n = 40) or 2) temperature-controlled ablation at an irrigation flow rate of 2 ml/min (low-flow group 10 swine; n = 20)...
October 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759434/pulmonary-vein-re-isolation-as-a-routine-strategy-regardless-of-symptoms-the-pressure-randomized-controlled-trial
#11
Moloy Das, Gareth J Wynn, Yawer Saeed, Sean Gomes, Maureen Morgan, Christina Ronayne, Laura J Bonnett, Johan E P Waktare, Derick M Todd, Mark C S Hall, Richard L Snowdon, Simon Modi, Dhiraj Gupta
OBJECTIVES: The goal of this study was to determine whether a strategy of early re-isolation of pulmonary vein (PV) reconnection in all patients, regardless of symptoms, would reduce the recurrence of atrial fibrillation (AF) and improve quality of life. BACKGROUND: Lasting pulmonary vein isolation (PVI) remains elusive. PV reconnection is strongly linked to the recurrence of arrhythmia. METHODS: A total of 80 patients with paroxysmal AF were randomized 1:1 after contact force-guided PVI to receive either standard care or undergo a repeat electrophysiology study after 2 months regardless of symptoms (repeat study)...
June 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759432/incidence-of-pulmonary-vein-stenosis-after-radiofrequency-catheter-ablation-of-atrial-fibrillation
#12
Cas Teunissen, Birgitta K Velthuis, Rutger J Hassink, Jeroen F van der Heijden, Evert-Jan P A Vonken, Nick Clappers, Pieter A Doevendans, Peter Loh
OBJECTIVES: This study aimed to determine incidence of pulmonary vein stenosis (PVS) and evaluate PVS-related symptoms. BACKGROUND: The real-life incidence of PVS after radiofrequency catheter ablation (RFCA) of atrial fibrillation (AF) is unknown. METHODS: All patients who underwent RFCA of AF from 2005 to 2016 with routine pre- and post-ablation screening by magnetic resonance imaging or computed tomography were included. Primary ablation strategy was PV antrum isolation alone in all patients...
June 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759431/anatomic-parameters-predicting-procedural-difficulty-and-balloon-temperature-predicting-successful-applications-in-individual-pulmonary-veins-during-28-mm-second-generation-cryoballoon-ablation
#13
Takatsugu Kajiyama, Shinsuke Miyazaki, Junji Matsuda, Tomonori Watanabe, Takayuki Niida, Takamitsu Takagi, Hiroaki Nakamura, Hiroshi Taniguchi, Hitoshi Hachiya, Yoshito Iesaka
OBJECTIVES: This study sought to identify anatomic parameters predicting procedural difficulty in achieving pulmonary vein isolation (PVI) and in-procedural predictors of successful applications during second-generation cryoballoon (CB) ablation. BACKGROUND: PV anatomies vary and influence the procedural difficulty during CB PVI. METHODS: In total, 408 initial freezes among 110 patients undergoing PVI for paroxysmal atrial fibrillation using 28-mm second-generation CBs with single 3-min freeze techniques were included...
June 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759429/defining-blanking-period-post-pulmonary-vein-antrum-isolation
#14
Pouria Alipour, Zahra Azizi, Meysam Pirbaglou, Paul Ritvo, Alfredo Pantano, Atul Verma, Yaariv Khaykin
OBJECTIVES: This study sought to determine the exact period after pulmonary vein antrum isolation (PVI) during which early recurrence of atrial tachyarrhythmia (ERAT) does not predict late arrhythmia recurrence (LR), in order to better define the blanking period. BACKGROUND: Recurrence of atrial fibrillation after PVI is not uncommon. The first 3 months after PVI have been commonly treated as a blanking period, during which ERAT is not thought to predict LR after PVI; however, recent studies have shown that ERAT does predict LR...
June 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759428/atrial-fibrillation-and-pulmonary-venous-electrical-conduction-recovery-after-full-surgical-resection-and-anastomosis-of-the-pulmonary-veins-insights-from-follow-up-and-ablation-procedures-in-lung-transplant-recipients
#15
Ayman A Hussein, Tanmay S Panchabhai, Marie M Budev, Khaldoun Tarakji, Amr F Barakat, Walid Saliba, Bruce Lindsay, Oussama M Wazni
OBJECTIVES: The authors report their experience with atrial fibrillation (AF) rates and ablation findings in lung transplant recipients. BACKGROUND: Pulmonary venous (PV) conduction recovery accounts for most failed atrial fibrillation (AF) catheter ablation procedures. Lung transplantation involves full surgical resection and replacement of the recipient's PVs with donor's PVs, which may represent the ultimate PV ablation. METHODS: They followed 755 consecutive lung transplant recipients categorized based on transplant status (unilateral vs...
June 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29759426/development-of-nonpulmonary-vein-foci-increases-risk-of-atrial-fibrillation-recurrence-after-pulmonary-vein-isolation
#16
Rintaro Hojo, Seiji Fukamizu, Takeshi Kitamura, Yuya Aomyama, Mitsuhiro Nishizaki, Yoichi Kobayashi, Harumizu Sakurada, Masayasu Hiraoka
OBJECTIVES: The aim of this paper was to clarify the impact of nonpulmonary vein foci (NPVF) on atrial fibrillation (AF) recurrence after pulmonary vein (PV) isolation. BACKGROUND: NPVF are considered contributing factors for the recurrence of AF after PV isolation, but their exact role remains unclear. METHODS: We retrospectively reviewed 216 patients (paroxysmal AF, n = 172; persistent AF, n = 44) who underwent a second electrophysiological study 6 months after the original PV isolation...
June 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29755942/electrical-isolation-of-the-right-pulmonary-veins-requiring-ablation-from-the-right-atrial-septum
#17
Rahul Bhardwaj, Vivek Y Reddy
No abstract text is available yet for this article.
April 2018: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/29753943/characterization-of-drivers-maintaining-atrial-fibrillation-correlation-with-markers-of-rapidity-and-organization-on-spectral-analysis
#18
Shohreh Honarbakhsh, Richard J Schilling, Rui Providencia, Emily Keating, Anthony Chow, Simon Sporton, Martin Lowe, Mark J Earley, Pier D Lambiase, Ross J Hunter
BACKGROUND: Better characterization of drivers in atrial fibrillation (AF) may facilitate their identification. OBJECTIVES: Demonstrate that certain driver characteristics are associated with greater mechanistic importance in maintaining AF. METHODS: Patients had persistent AF mapped using the CARTOFINDER system with a 64-pole basket catheter to identify and ablate drivers with rotational or focal activity following pulmonary vein isolation...
April 19, 2018: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29752040/mesenchymal-stem-cell-derived-microvesicles-alleviate-pulmonary-arterial-hypertension-by-regulating-renin-angiotensin-system
#19
Zhenjun Liu, Jinghu Liu, Mengyuan Xiao, Junxian Wang, Feng Yao, Weikai Zeng, Liqin Yu, Yuejie Guan, Wenyan Wei, Zijian Peng, Kunpeng Zhu, Jin Wang, Zhongyuan Yang, Jixin Zhong, Jianying Chen
In recent years, microvesicles (MVs) derived from mesenchymal stem cells (MSCs) have been proved to be able to improve the outcome of pulmonary arterial hypertension (PAH) in many respects, but the underlying mechanisms of it still remain unclear. Because the renin-angiotensin system (RAS) has been found to be closely related to PAH, the present study was designed to investigate whether the effect of MSC-derived MVs on PAH was correlated with RAS. MVs were isolated and purified from bone marrow MSCs. PAH rat models were established by a single intraperitoneal injection of 1% monocrotaline (MCT, 50 mg/Kg)...
March 15, 2018: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/29744616/identification-of-active-atrial-fibrillation-sources-and-their-discrimination-from-passive-rotors-using-electrographical-flow-mapping
#20
Barbara Bellmann, Tina Lin, Peter Ruppersberg, Marit Zettwitz, Selma Guttmann, Verena Tscholl, Patrick Nagel, Mattias Roser, Ulf Landmesser, Andreas Rillig
BACKGROUND: The optimal ablation approach for the treatment of persistent atrial fibrillation (AF) is still under debate; however, the identification and elimination of AF sources is thought to play a key role. Currently available technologies for the identification of AF sources are not able to differentiate between active rotors or focal impulse (FI) and passive circular turbulences as generated by the interaction of a wave front with a functional obstacle such as fibrotic tissue. OBJECTIVES: This study introduces electrographic flow (EGF) mapping as a novel technology for the identification and characterization of AF sources in humans...
May 9, 2018: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
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