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Atrial Fibrillation and Radiation

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https://www.readbyqxmd.com/read/28538401/atrial-fibrillation-was-changed-into-sinus-bradycardia-in-a-ros1-positive-advanced-lung-adenocarcinoma-patient-who-achieved-durable-response-to-crizotinib-a-case-report-and-literature-review
#1
Lan Liu, Jing Wu, Wei Zhao, Mei-Juan Huang
RATIONAL: The c-ros oncogene 1 receptor tyrosine kinase (ROS1)-rearrangements represent a new and rare genetic subtype of non-small-cell lung cancer. In recent years, the use of crizotinib in ROS1-rearranged lung cancer exhibits significant clinical efficacy. Crizotinib is generally well tolerated and the most frequent adverse events include visual disorders, gastrointestinal disturbances, cardiac, and endocrine abnormalities. From a cardiac perspective, crizotinib is associated with 2 main cardiac effects, QT interval prolongation and bradycardia...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28513211/image-quality-of-low-radiation-dose-left-atrial-ct-using-filtered-back-projection-and-an-iterative-reconstruction-algorithm-intra-individual-comparison-in-unselected-patients-undergoing-pulmonary-vein-isolation
#2
Ute Lina Fahlenkamp, Ivan Diaz Ramirez, Moritz Wagner, Carsten Schwenke, Alexander Huppertz, Bernd Hamm, Alexander Lembcke
Background Computed tomography (CT) of the left atrium (LA) is performed prior to pulmonary vein isolation (PVI) to improve success of circumferential ablation for atrial fibrillation. The ablation procedure itself exposes patients to substantial radiation doses, therefore radiation dose reduction in pre-ablational imaging is of concern. Purpose To assess and compare diagnostic performance of low-radiation dose preprocedural CT in patients scheduled for PVI using two types of reconstruction algorithms. Material and Methods Forty-six patients (61 ± 10 years) scheduled for PVI were enrolled in this study irrespective of body-mass-index or cardiac rhythm at examination...
January 1, 2017: Acta Radiologica
https://www.readbyqxmd.com/read/28491756/radiation-associated-plasmacytoma-following-catheter-ablation-for-atrial-fibrillation
#3
Justin Chow, Theresa Trotter, Peter Duggan, Stephen B Wilton
No abstract text is available yet for this article.
January 2017: HeartRhythm Case Reports
https://www.readbyqxmd.com/read/28448411/image-quality-and-radiation-exposure-comparison-of-a-double-high-pitch-acquisition-for-coronary-computed-tomography-angiography-versus-standard-retrospective-spiral-acquisition-in-patients-with-atrial-fibrillation
#4
Carlos Eduardo Elias Dos Prazeres, Tiago Augusto Magalhães, Adriano Camargo de Castro Carneiro, Roberto Caldeira Cury, Valéria de Melo Moreira, Juliana Hiromi Silva Matsumoto Bello, Carlos Eduardo Rochitte
OBJECTIVE: The aim of this study was to compare image quality and radiation dose of coronary computed tomography (CT) angiography performed with dual-source CT scanner using 2 different protocols in patients with atrial fibrillation. METHODS: Forty-seven patients with AF underwent 2 different acquisition protocols: double high-pitch (DHP) spiral acquisition and retrospective spiral acquisition. The image quality was ranked according to a qualitative score by 2 experts: 1, no evident motion; 2, minimal motion not influencing coronary artery luminal evaluation; and 3, motion with impaired luminal evaluation...
April 26, 2017: Journal of Computer Assisted Tomography
https://www.readbyqxmd.com/read/28445682/atrial-fibrillation-diagnostic-accuracy-of-coronary-ct-angiography-performed-with-a-whole-heart-230-%C3%A2%C2%B5m-spatial-resolution-ct-scanner
#5
Daniele Andreini, Gianluca Pontone, Saima Mushtaq, Edoardo Conte, Marco Perchinunno, Marco Guglielmo, Valentina Volpato, Andrea Annoni, Andrea Baggiano, Alberto Formenti, Maria Elisabetta Mancini, Virginia Beltrama, Valentina Ditali, Alessandro Campari, Cesare Fiorentini, Antonio L Bartorelli, Mauro Pepi
Purpose To assess image quality, interpretability, diagnostic accuracy, and radiation exposure of a computed tomography (CT) scanner with 16-cm coverage and 230-µm spatial resolution at coronary artery evaluation in patients with atrial fibrillation (AF) by using invasive coronary angiography (ICA) as the reference method and to compare the results with those obtained in patients with sinus rhythm (SR). Materials and Methods Written informed consent and institutional ethics committee approval were obtained...
April 26, 2017: Radiology
https://www.readbyqxmd.com/read/28398484/significant-reduction-of-radiation-exposure-in-cryoballoon-based-pulmonary-vein-isolation
#6
Bruno Reissmann, Tilman Maurer, Peter Wohlmuth, Matthias Krüger, Christian Heeger, Christine Lemes, Thomas Fink, Johannes Riedl, Francesco Santoro, Shibu Mathew, Christian Sohns, Karl-Heinz Kuck, Feifan Ouyang, Andreas Metzner
Aims: Procedure times and left atrial dwell times of cryoballoon (CB)-based ablation strategies for atrial fibrillation (AF) are shorter as compared to radiofrequency ablation, yet fluoroscopy times are longer and result in a higher radiation exposure. The objective of this study is to evaluate a modified fluoroscopy protocol aiming at reduction of radiation exposure in CB ablation. Methods: A total of 120 patients with symptomatic AF underwent pulmonary vein isolation (PVI) using the second generation CB and an ablation strategy considering the individual time-to-isolation...
April 7, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28374072/outcomes-following-cryoballoon-ablation-for-atrial-fibrillation-guided-by-pressure-waveform-monitoring-without-the-routine-use-of-pulmonary-venography
#7
Akshit Sharma, Jashdeep Dhoot, Jingyan Wang, Philip Jones, Sanjaya Gupta, Alan P Wimmer
PURPOSE: Pressure waveform analysis has the potential for facilitated assessment of pulmonary vein occlusion during cryoballoon ablation for atrial fibrillation. Data on clinical outcomes using this method are lacking. We sought to validate through clinical outcomes the use of pressure waveform analysis as the primary method of determining pulmonary vein occlusion during cryoballoon ablation. METHODS: A study was performed of 122 consecutive patients with atrial fibrillation (85% paroxysmal) undergoing cryoballoon ablation from May 2014 through July 2015 at a single institution using pressure waveform analysis as the primary method of assessing pulmonary vein occlusion...
June 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/28315567/a-practical-guide-for-building-a-highway-between-atria-during-transseptal-puncture-without-radiation
#8
Yuan Yuan, Deyong Long, Caihua Sang, Ling Tao, Jianzeng Dong, Changsheng Ma
OBJECTIVE: To investigate whether switching the ablation catheter between the right and left atria through transseptal puncture site can be accurately performed without fluoroscopy. METHODS: Forty patients with persistent atrial fibrillation (mean age, 60.2±7.4 years; 65% males) got "2C3L" approach were randomized in a 1:1 ratio to undergo either crossing interatrial septum guided by fluoroscopy (trackless group) or crossing septum guided by track image that was mapped by Carto3 system (track group)...
March 9, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28215568/reduction-in-radiation-dose-for-atrial-fibrillation-ablation-over-time-a-12-year-single-center-experience-of-2344-patients
#9
Aleksandr Voskoboinik, Elana S Kalman, Yonatan Savicky, Paul B Sparks, Joseph B Morton, Geoffrey Lee, Peter M Kistler, Jonathan M Kalman
BACKGROUND: Pulmonary vein isolation (PVI) is a well-established treatment of atrial fibrillation (AF), with contact force (CF)-sensing catheters joining 3-dimensional mapping systems and image integration as technological advancements over the last decade. OBJECTIVE: The purpose of this study was to analyze trends in radiation exposure for AF ablation over the last 12 years at our center. METHODS: We reviewed prospectively collected data of 2344 consecutive PVI procedures for either paroxysmal or persistent AF between January 2004 and December 2015...
February 12, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/28209944/impact-of-contact-force-technology-on-reducing-the-recurrence-and-major-complications-of-atrial-fibrillation-ablation-a-systematic-review-and-meta-analysis
#10
Xianhui Zhou, Wenkui Lv, Wenhui Zhang, Yuanzheng Ye, Yaodong Li, Qina Zhou, Qiang Xing, Jianghua Zhang, Yanmei Lu, Ling Zhang, Hongli Wang, Wen Qin, Baopeng Tang
Contact force (CF) monitoring can be useful in accomplishing circumferential pulmonary vein (PV) isolation for atrial fibrillation (AF). This meta-analysis aimed to assess the efficacy and safety of a CF-sensing catheter in treating AF. Randomized controlled trials or non-randomized observational studies comparing AF ablation using CF-sensing or standard non-CF (NCF)-sensing catheters were identified from PubMed, EMBASE, Cochrane Library, Wanfang Data, and China National Knowledge Infrastructure (January 1, 1998-2016)...
February 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28205119/use-of-three-dimensional-computed-tomography-overlay-for-real-time-cryoballoon-ablation-in-atrial-fibrillation-reduces-radiation-dose-and-contrast-dye
#11
B Oude Velthuis, M Molenaar, H G Reinhart Dorman, J Y Stevenhagen, M F Scholten, J van der Palen, J M van Opstal
AIMS: Cryoballoon pulmonary vein (PV) isolation in patients with atrial fibrillation has proven to be effective in short-term and long-term follow-up. To visualise the PV anatomy, pre-ablation contrast pulmonary venography is commonly performed. Three-dimensional (3D) computed tomography (CT) overlay is a new technique creating a live 3D image of the left atrium by integrating a previously obtained CT scan during fluoroscopy. To evaluate the benefits of 3D CT overlay during cryoballoon ablation, we studied the use of 3D CT overlay versus contrast pulmonary venography in a randomised fashion in patients with paroxysmal atrial fibrillation undergoing cryoballoon PV isolation...
February 15, 2017: Netherlands Heart Journal
https://www.readbyqxmd.com/read/28185351/persistent-atrial-fibrillation-ablation-with-or-without-contact-force-sensing
#12
Ayman A Hussein, Amr F Barakat, Walid I Saliba, Khaldoun G Tarakji, Mohamed Bassiouny, Bryan Baranowski, Patrick Tchou, Mandeep Bhargava, Thomas Dresing, Thomas Callahan, Daniel Cantillon, Mohamed Kanj, Bruce D Lindsay, Oussama M Wazni
INTRODUCTION: Arrhythmia recurrences remain common after ablation of persistent atrial fibrillation (PersAF). Contact force (CF)-sensing catheters have been introduced for objective assessment of contact during radiofrequency application and have been suggested to improve outcomes in ablation of paroxysmal AF, but little is known about their role in PersAF ablation. We aimed to compare the procedural profiles and outcomes of (PersAF) ablation with or without using CF-sensing catheters...
May 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28160298/fluoroless-catheter-ablation-of-cardiac-arrhythmias-a-5-year-experience
#13
Mansour Razminia, Michael Cameron Willoughby, Hany Demo, Hesam Keshmiri, Theodore Wang, Oliver J D'Silva, Terry A Zheutlin, Hakeem Jibawi, Paul Okhumale, Richard F Kehoe
BACKGROUND: Catheter ablations have been traditionally performed with the use of fluoroscopic guidance, which exposes the patient and staff to the inherent risks of radiation. We have developed techniques to eliminate the use of fluoroscopy during cardiac ablations and have been performing completely fluoroless catheter ablations on our patients for over 5 years. METHODS: We present a retrospective analysis of the safety, efficacy, and feasibility data from 500 consecutive patients who underwent nonfluoroscopic catheter ablation, targeting a total of 639 arrhythmias, including atrioventricular reciprocating tachycardia (AVRT), atrioventricular nodal reentrant tachycardia (AVNRT), atrial tachycardia (AT), atrial fibrillation (AF), premature ventricular contractions (PVCs), and ventricular tachycardia (VT)...
February 3, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28157261/mediguide-assisted-transseptal-puncture-without-echocardiographic-guidance
#14
Gabriel Ballesteros, Pablo Ramos Ardanaz, Renzo Neglia, Marcel Palacio Solís, Cristina Díaz Fernández, Graciela López González, Elene Janiashvili, Ignacio García-Bolao
BACKGROUND: First description of a technique for left atrium transseptal puncture (TSP) with minimal radiation exposure by using the nonfluoroscopic MediGuide™ tracking system (MG; St. Jude Medical, St. Paul, MN, USA) without the assistance of intracardiac echocardiography. METHODS: This study included 31 consecutive patients with atrial fibrillation undergoing an MG-assisted percutaneous catheter ablation procedure. A Brockenbrough transseptal needle (BRK) is connected to a standard pressure transducer through a two-input valve...
May 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28132957/risk-of-heart-failure-with-preserved-ejection-fraction-in-older-women-after-contemporary-radiotherapy-for-breast-cancer
#15
Hirofumi Saiki, Ivy A Petersen, Christopher G Scott, Kent R Bailey, Shannon M Dunlay, Randi R Finley, Kathryn J Ruddy, Elizabeth Yan, Margaret M Redfield
BACKGROUND: Cardiomyocytes are resistant to radiation. However, cardiac radiation exposure causes coronary microvascular endothelial inflammation, a perturbation implicated in the pathogenesis of heart failure (HF) and particularly HF with preserved ejection fraction (HFpEF). Radiotherapy for breast cancer results in variable cardiac radiation exposure and may increase the risk of HF. METHODS: We conducted a population-based case-control study of incident HF in 170 female residents of Olmsted County, Minnesota (59 cases and 111 controls), who underwent contemporary (1998-2013) radiotherapy for breast cancer with computed tomography-assisted radiotherapy planning...
April 11, 2017: Circulation
https://www.readbyqxmd.com/read/28044988/feasibility-of-concomitant-mitraclip-and-left-atrial-appendage-occlusion
#16
Shingo Kuwata, Maurizio Taramasso, Michel Zuber, Gabor Suetsch, Adrian Attinger-Toller, David Wicki, Francesco Maisano, Fabian Nietlispach
AIMS: The aim of our study is to report our single-centre experience with concomitant MitraClip (MC) and left atrial appendage occlusion (LAAO) and further to assess the feasibility, safety and short-term outcome of such an approach. METHODS AND RESULTS: Twenty-five consecutive patients underwent MC with concomitant LAAO at our hospital (combined group). As a control group, 25 consecutive patients with atrial fibrillation (AF) undergoing standalone MC were selected...
March 20, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28029558/radiation-dose-levels-of-retrospectively-ecg-gated-coronary-ct-angiography-using-70-kvp-tube-voltage-in-patients-with-high-or-irregular-heart-rates
#17
Mathias Meyer, Holger Haubenreisser, Uwe Joseph Schoepf, Rozemarijn Vliegenthart, Melissa M Ong, Christina Doesch, Sonja Sudarski, Martin Borggrefe, Stefan O Schoenberg, Thomas Henzler
RATIONALE AND OBJECTIVES: Despite ongoing technical refinements, coronary computed tomography angiography (cCTA) remains challenging in its diagnostic value by electrocardiographic (ECG) misregistration and motion artifacts, which commonly occur in patients with atrial fibrillation and high or irregular heart rates. The aim of this study was to evaluate the radiation dose and the number of inconclusive coronary segments at cCTA using retrospective ECG gating at 100 and 70 kV. MATERIALS AND METHODS: With institutional review board approval, 154 patients (median age 54 years, 98 men) with high or irregular heart rate prospectively underwent retrospectively ECG-gated cCTA without tube current modulation on a third-generation dual-source computed tomography (DSCT) system at 70 kV (n = 103) or on a second-generation DSCT system at 100 kV (n = 51)...
October 28, 2016: Academic Radiology
https://www.readbyqxmd.com/read/27978516/prognostic-significance-of-dementia-in-older-adults-with-solid-tumors
#18
Supakanya Wongrakpanich, Amy Hurst, Jean Bustamante, Nellowe Candelario, Sylvia Biso, Wikrom Chaiwatcharayut, Claudia Dourado, Andrew Rosenzweig
BACKGROUND: The public health burden of cancer and dementia in the geriatric population is well documented. There is limited data on how dementia predicts mortality among geriatric patients with solid tumors. The objective of this study is to determine the prognostic significance of dementia on survival in patients with solid tumors. METHODS: We performed a 5-year retrospective study on elderly subjects aged ≥60 years with and without dementia that were diagnosed with solid tumors...
2017: Dementia and Geriatric Cognitive Disorders
https://www.readbyqxmd.com/read/27941401/new-standards-of-care-in-ischemic-stroke
#19
Bree K Chancellor, Koto Ishida
BACKGROUND: Ischemic arterial strokes of the ophthalmic artery and its branches and posterior cerebral artery are common causes of visual disability. Etiologies of stroke affecting the retina, optic nerve, optic radiation, and visual cortex overlap with other types of ischemic strokes. Stenosis of the internal carotid is the most common cause of central retinal artery occlusion (CRAO). One-fourth of patients with CRAO have cerebral strokes. We report recent developments in the acute treatment and secondary prevention of ischemic stroke of relevance to clinicians who encounter patients with acute vision loss...
December 8, 2016: Journal of Neuro-ophthalmology: the Official Journal of the North American Neuro-Ophthalmology Society
https://www.readbyqxmd.com/read/27928144/long-term-clinical-outcomes-and-prognostic-factors-after-pericardiectomy-for-constrictive-pericarditis-in-a-japanese-population
#20
Shunsuke Nishimura, Chisato Izumi, Masashi Amano, Sari Imamura, Naoaki Onishi, Yodo Tamaki, Soichiro Enomoto, Makoto Miyake, Toshihiro Tamura, Hirokazu Kondo, Kazuaki Kaitani, Kazuo Yamanaka, Yoshihisa Nakagawa
BACKGROUND: Constrictive pericarditis (CP) is characterized by impaired diastolic cardiac function leading to heart failure. Pericardiectomy is considered effective treatment for CP, but data on long-term clinical outcomes after pericardiectomy are limited.Methods and Results:We retrospectively investigated 45 consecutive patients (mean age, 59±14 years) who underwent pericardiectomy for CP. Preoperative clinical factors, parameters of cardiac catheterization, and cardiac events were examined...
January 25, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
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