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https://www.readbyqxmd.com/read/28340078/image-integration-into-3-dimensional-electro-anatomical-mapping-system-facilitates-safe-ablation-of-ventricular-arrhythmias-originating-from-the-aortic-root-and-its-vicinity
#1
Mario Jularic, Ruken Özge Akbulak, Benjamin Schäffer, Julia Moser, Jana Nuehrich, Christian Meyer, Christian Eickholt, Stephan Willems, Boris A Hoffmann
Aims: During ablation in the vicinity of the coronary arteries establishing a safe distance from the catheter tip to the relevant vessels is mandatory and usually assessed by fluoroscopy alone. The aim of the study was to investigate the feasibility of an image integration module (IIM) for continuous monitoring of the distance of the ablation catheter tip to the main coronary arteries during ablation of ventricular arrhythmias (VA) originating in the sinus of valsalva (SOV) and the left ventricular summit part of which can be reached via the great cardiac vein (GCV)...
March 7, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339945/single-site-ventricular-pacing-via-the-coronary-sinus-in-patients-with-tricuspid-valve-disease
#2
Amit Noheria, Martin van Zyl, Luis R Scott, Komandoor Srivathsan, Malini Madhavan, Samuel J Asirvatham, Christopher J McLeod
Aims: To evaluate coronary sinus single-site (CSSS) left ventricular pacing in adult patients with normal left ventricular ejection fraction (LVEF) when traditional right ventricular lead implantation is not feasible or is contraindicated. Methods and results: We performed a retrospective analysis of 23 patients with tricuspid valve surgery/disease who received a CSSS ventricular pacing lead to avoid crossing the tricuspid valve. Two matched control populations were obtained from patients receiving (i) conventional right ventricular single-site (RVSS) leads and (ii) coronary sinus leads for cardiac resynchronization therapy (CSCRT)...
March 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28335983/ideal-guiding-catheter-position-during-bilaterally-engaged-percutaneous-coronary-intervention
#3
Kensuke Yokoi, Masahiko Hara, Yasunori Ueda, Satoru Sumitsuji, Masaki Awata, Youssef K Salah, Daijiro Kabata, Ayumi Shintani, Yasushi Sakata
Using a novel combined angiography computed tomography (CT) system, we evaluated the impact of the intra-aortic root position of a right coronary artery (RCA) catheter on its coaxiality. We retrospectively enrolled 19 patients who underwent CT scans during bilaterally engaged percutaneous coronary intervention. Coaxiality was defined as the angle between the RCA and the RCA catheter. The coaxiality was better when the RCA catheter was placed anterior to the left main coronary artery catheter (median 27.0° vs 53...
March 1, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28330636/acute-coronary-syndrome-resulting-from-systolic-compression-of-left-main-coronary-artery-secondary-to-aortic-subvalvular-aneurysm
#4
Partha Sardar, Evbu Enakpene, James C Fang, Frederick G P Welt
No abstract text is available yet for this article.
March 10, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28329291/coronary-artery-bypass-graft-surgery-versus-drug-eluting-stent-implantation-for-high-surgical-risk-patients-with-left-main-or-multivessel-coronary-artery-disease
#5
Mineok Chang, Cheol Whan Lee, Jung-Min Ahn, Rafael Cavalcante, Yohei Sotomi, Yoshinobu Onuma, Duk-Woo Park, Soo-Jin Kang, Seung-Whan Lee, Young-Hak Kim, Seong-Wook Park, Patrick W Serruys, Seung-Jung Park
OBJECTIVES: There are limited data comparing long-term outcomes of coronary artery bypass graft surgery (CABG) and percutaneous coronary intervention (PCI) with drug-eluting stents (DES) in patients with high surgical risk. We evaluated 5-year outcomes following CABG versus PCI with DES in 598 patients with left main or multivessel coronary artery disease (CAD) and a high surgical risk [EuroSCORE (European system for cardiac operative risk evaluation) ≥ 6]. METHODS: Databases were merged from the BEST, PRECOMBAT and SYNTAX trials...
December 20, 2016: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28329283/left-sinus-of-valsalva-aneurysm-as-a-cause-of-chronic-stable-angina
#6
Alexandre Ponti, Salah D Qanadli, Matthias Kirsch, Maxime Tapponnier
Sinus of Valsalva aneurysms are unusual, particularly when located on the left coronary sinus. They are mainly asymptomatic, however once ruptured, they are associated with high mortality. We present hereinafter an atypical case of a 71-year-old patient with an unruptured left sinus of Valsalva aneurysm causing myocardial ischaemia due to a compressed left main coronary artery. Surgical endoaneurysmorrhaphy was performed; however, a dehiscence of the suture line between the patch and the aortic wall required additional percutaneous implantation of a vascular occluder...
February 27, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28329202/myocardial-revascularization-in-patients-with-left-main-or-multivessel-coronary-artery-disease-at-high-surgical-risk-conventional-wisdom-versus-risk-prediction-model
#7
Raffaele Piccolo, Stephan Windecker, Philippe Kolh
No abstract text is available yet for this article.
March 17, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28327159/the-clinical-use-of-stress-echocardiography-in-ischemic-heart-disease
#8
REVIEW
Rosa Sicari, Lauro Cortigiani
Stress echocardiography is an established technique for the assessment of extent and severity of coronary artery disease. The combination of echocardiography with a physical, pharmacological or electrical stress allows to detect myocardial ischemia with an excellent accuracy. A transient worsening of regional function during stress is the hallmark of inducible ischemia. Stress echocardiography provides similar diagnostic and prognostic accuracy as radionuclide stress perfusion imaging or magnetic resonance, but at a substantially lower cost, without environmental impact, and with no biohazards for the patient and the physician...
March 21, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28325520/percutaneous-revascularization-of-coronary-chronic-total-occlusion-toward-a-reappraisal-of-the-available-evidence
#9
REVIEW
Pasi P Karjalainen, Wail Nammas
Chronic total occlusion (CTO) is a challenging subset of coronary artery disease that is commonly encountered in real-world practice; it is associated with worse long-term prognosis. Observational studies suggest that percutaneous coronary intervention (PCI) for CTO is associated with reduction in myocardial ischemia and improvement in quality of life and left ventricular function. Some observational studies suggested that CTO-PCI is associated with improvement of the 'hard' clinical endpoints; others did not...
March 18, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/28324943/overcoming-spatio-temporal-limitations-using-dynamically-scaled-in-vitro-pc-mri-a-flow-field-comparison-to-true-scale-computer-simulations-of-idealized-stented-and-patient-specific-left-main-bifurcations
#10
Susann Beier, John Ormiston, Mark Webster, John Cater, Stuart Norris, Pau Medrano-Gracia, Alistair Young, Kathleen Gilbert, Brett Cowan
The majority of patients with angina or heart failure have coronary artery disease. Left main bifurcations are particularly susceptible to pathological narrowing. Flow is a major factor of atheroma development, but limitations in imaging technology such as spatio-temporal resolution, signal-to-noise ratio (SNRv), and imaging artefacts prevent in vivo investigations. Computational fluid dynamics (CFD) modelling is a common numerical approach to study flow, but it requires a cautious and rigorous application for meaningful results...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28321497/intra-procedural-determination-of-viability-by-myocardial-deformation-imaging-a-randomized-prospective-study-in-the-cardiac-catheter-laboratory
#11
Alexander Schuh, Vadim Karayusuf, Ertunc Altiok, Sandra Hamada, Jörg Schröder, Andras Keszei, Malte Kelm, Matias de la Fuente, Michael Frick, Klaus Radermacher, Nikolaus Marx, Michael Becker
BACKGROUND: The benefit of revascularization for functional recovery depends on the presence of viable myocardial tissue. OBJECTIVE: Myocardial deformation imaging allows determination of myocardial viability. METHODS: In a first approach, we assessed the optimal cutoff value to determine preserved viability by layer-specific echocardiographic myocardial deformation imaging at rest and low-dose dobutamine (DSE) echocardiography: regional endocardial circumferential strain (eCS) <-19% at rest was as accurate as eCS at DSE...
March 20, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28321023/hybrid-strategy-to-treat-life-threatening-giant-coronary-artery-aneurysm-with-severe-in-stent-restenosis
#12
Wei-Chieh Lee, Hsiu-Yu Fang, Chih-Yuan Fang
Coronary artery aneurysm following drug-eluting stent implantation is rare in the literature. The presentation combined a life-threatening condition with severe in-stent restenosis. How to treat this condition is a complex problem because a surgical approach for a proximal left circumflex lesion is difficult. A hybrid method that is a combination of coronary bypass surgery and coronary stenting for left main bifurcation in-stent restenosis and proximal coronary artery aneurysm is a feasible strategy.
March 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28314673/can-we-perform-rotational-atherectomy-in-patients-with-severe-aortic-stenosis-substudy-from-the-ocean-tavi-registry
#13
Toru Naganuma, Hiroyoshi Kawamoto, Kensuke Takagi, Hiroto Yabushita, Satoru Mitomo, Yusuke Watanabe, Shinichi Shirai, Motoharu Araki, Norio Tada, Futoshi Yamanaka, Masanori Yamamoto, Hirokazu Onishi, Sunao Nakamura, Akihiro Higashimori, Minoru Tabata, Kazuki Mizutani, Hiroshi Ueno, Kentaro Hayashida
PURPOSE: The aim of this study was to report the safety of coronary rotational atherectomy (RA) in patients with severe aortic stenosis (AS). RA in the clinical setting seems challenging because coronary slow flow leads to hemodynamic instability. METHODS: Between October 2013 and May 2016, 1401 patients in the Optimized transCathEter vAlvular iNtervention (OCEAN) registry in Japan underwent transcatheter aortic valve implantation (TAVI). The primary study endpoint was procedural success, defined as residual stenosis <20% with final Thrombolysis in Myocardial Infarction flow 3...
February 28, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28314672/fenestration-of-a-papyrus-pk-covered-stent-to-recover-the-occluded-left-main-bifurcation-after-sealing-a-left-main-perforation-during-a-cto-procedure
#14
Gerald S Werner, Waqar H Ahmed
Covered stents are indicated for coronary perforations, but they may seal off major side branches in that process. We report the successful sealing of an ostial left main perforation, induced by a guide catheter in the course of a retrograde approach to treat a chronic total occlusion (CTO) of the right coronary artery (RCA) in a 76year old woman with prior CABG. The implanted Papyrus covered stent, however, overlapped the left main bifurcation and occluded the non-grafted circumflex artery (CX) resulting in acute ischemia...
March 6, 2017: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/28302642/pregnancy-and-the-risk-of-spontaneous-coronary-artery-dissection-an-analysis-of-120-contemporary-cases
#15
Ofer Havakuk, Sorel Goland, Anil Mehra, Uri Elkayam
BACKGROUND: Because of the rarity of this condition, information on pregnancy-associated spontaneous coronary artery dissection is limited. We reviewed a large number of contemporary pregnancy-associated spontaneous coronary artery dissection cases in an attempt to define the clinical characteristics and provide management recommendations. METHODS AND RESULTS: A literature search for cases of pregnancy-associated spontaneous coronary artery dissection reported between 2000 and 2015 included 120 cases; 75% presented with ST-segment-elevation myocardial infarction, and 80% had anterior myocardial infarction...
March 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28300667/characteristics-of-coronary-artery-disease-among-patients-with-atrial-fibrillation-compared-to-patients-with-sinus-rhythm
#16
Lukas J Motloch, Sara Reda, Robert Larbig, Ariane Wolff, Karolina A Motloch, Bernhard Wernly, Christina Granitz, Michael Lichtenauer, Martin Wolny, Uta C Hoppe
BACKGROUND: With a high prevalence of coronary artery disease (CAD) among patients with atrial fibrillation (AF), CAD is one of the main risk factors for AF. However, little is known about the characteristics of CAD in AF patients. Especially, the question, whether a specific anatomical distribution of coronary artery stenoses might predispose to AF via atrial ischemia remains speculative. To address this issue, we evaluated potential associations between angiographic characteristics of CAD and AF...
March 11, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/28296170/percutaneous-coronary-intervention-or-coronary-artery-bypass-grafting-for-unprotected-left-main-coronary-artery-disease
#17
Ahmed N Mahmoud, Islam Y Elgendy, Amgad Mentias, Marwan Saad, Walid Ibrahim, Mohammad K Mojadidi, Ramez Nairooz, Parham Eshtehardi, R David Anderson, Habib Samady
BACKGROUND: Recent trials comparing PCI with CABG for unprotected left main disease yielded discrepant evidence. OBJECTIVES: To perform an updated meta-analysis of randomized trials comparing percutaneous coronary intervention (PCI) with coronary artery bypass grafting (CABG) in patients with unprotected left main coronary artery disease. METHODS: Randomized trials comparing PCI versus CABG for patients with unprotected left main coronary artery disease were included...
March 15, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28296050/a-heart-within-a-heart
#18
Edward T Carreras, Maya Barghash, Michael M Givertz, Deepak L Bhatt
A 44-year-old man with a history of end-stage dilated cardiomyopathy status-post orthotopic cardiac transplant 14 years ago presented for coronary angiography in preparation for re-operative tricuspid valve replacement. Coronary angiography revealed an anomalous origin of the left coronary artery, with a common coronary trunk arising from the right coronary cusp and bifurcating into right and left main coronary arteries. Interestingly, the right and left coronary arteries coursed to form the shape of a heart, hence, a heart within a heart! © 2017 Wiley Periodicals, Inc...
March 14, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28293003/-surgical-repair-of-coronary-pulmonary-artery-fistulae-with-giant-coronary-aneurysm
#19
Naoki Hashiyama, Yusuke Katayama, Makoto Mo, Munetaka Masuda
A 69-year-old woman was referred to our hospital due to dyspnea on exertion and a heart murmur. A chest X-ray showed a bulge at the left 3rd arch and chest computed tomography( CT) revealed a giant mass adjacent to the right ventricular outflow. Multidetector-row CT and coronary angiography showed a giant coronary aneurysm (55×45 mm) and fistulae arising from the left main coronary trunk and entering into the main pulmonary artery (PA). The pulmonary to systemic flow ratio was 1.84. She was diagnosed with coronary-pulmonary artery fistulae with giant coronary aneurysm...
March 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28292545/adding-fuel-to-the-fire-coronary-artery-dissection-complicating-blunt-chest-trauma
#20
Ankit Maheshwari, Thenappan Thenappan, Gladwin Das
A 21year-old male presented to the emergency department with 6 h of atypical chest pain after suffering blunt chest trauma. His electrocardiogram revealed 1-1.5mm ST segment elevation in leads V1-V3 with reciprocal depressions in II, III, and aVF. Mid-anterior wall akinesis was observed on echocardiography associated with an estimated left ventricular ejection fraction of 40%. A left main coronary artery dissection was diagnosed and treated surgically with a bypass graft. Although rare, coronary dissections can be a catastrophic complication of chest trauma...
March 7, 2017: American Journal of Emergency Medicine
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