| Clinical use of AcuNav diagnostic ultrasound catheter imaging during left heart radiofrequency ablation and transcatheter closure procedures. | |
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MedLine Citation:
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PMID: 12411921 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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BACKGROUND: AcuNav ultrasound catheter (UC) (10F, 5.5-10 MHz) has unique advantages for left heart imaging with its 4-way tip flexible maneuverability, maximal 16-cm intracardiac imaging depth, and Doppler and color flow imaging capability. METHODS: We assessed the initial use of this UC in 40 consecutive patients (34 men; age 53 +/- 11 years old). All patients were also undergoing transseptal catheterization for percutaneous catheter mapping and ablation of either left atrium (focal initiated atrial arrhythmia/fibrillation, n = 32) or left ventricle (ventricular tachycardia, n = 4), or transcatheter atrial septal defect closure (n = 4) procedures. During each procedure, the UC was placed in the right atrium, superior vena cava, or right ventricular inflow/outflow tract. RESULTS: In all patients, UC successfully guided transseptal catheterization and provided imaging of normal or aberrant anatomy of the right/left atrial (interatrial septum, fossa ovalis, appendages, 4 pulmonary vein ostia) and right/left ventricular (valves and papillary muscles) structures. UC was important in early identification procedure complications, including pericardial effusion (n = 2, detected before systematic hemodynamic deterioration) and thrombus formation on sheaths deployed in the right atrium (n = 9) and left atrium (n = 2, early elimination with management of the sheath). With Doppler and color flow imaging, UC provided effective monitoring of increased flow velocity of all ablated pulmonary vein ostia and detection of patent foramen ovale (n = 6) or residual trivial/small atrial septal defect posttransseptal catheterization (n = 2). UC was also used to successfully image and guide transcatheter closure of atrial septal defect with positioning of the cardioseal septal occluder (Nitinol Medical Technologies Inc, Boston, Mass) and color Doppler imaging of no significant residual shunt. CONCLUSION: AcuNav UC with Doppler and color flow imaging has significant use, especially during left heart ablation. Uses include guidance of transseptal and mapping/ablation catheters and closure devices, and prompt diagnosis of cardiac complications. |
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Authors:
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Jian-Fang Ren; Francis E Marchlinski; David J Callans; Howard C Herrmann |
Publication Detail:
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Type: Evaluation Studies; Journal Article |
Journal Detail:
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Title: Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography Volume: 15 ISSN: 0894-7317 ISO Abbreviation: J Am Soc Echocardiogr Publication Date: 2002 Oct |
Date Detail:
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Created Date: 2002-11-04 Completed Date: 2003-02-12 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 8801388 Medline TA: J Am Soc Echocardiogr Country: United States |
Other Details:
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Languages: eng Pagination: 1301-8 Citation Subset: IM |
Affiliation:
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Division of Cardiovascular Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Philadelphia 19104, USA. jfren@mail.med.upenn.edu |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adult Blood Flow Velocity / physiology Catheter Ablation* Diagnostic Imaging / instrumentation* Echocardiography, Doppler Electrophysiologic Techniques, Cardiac Equipment Design Female Heart Atria / physiopathology, surgery, ultrasonography Heart Catheterization* Heart Diseases / diagnosis*, physiopathology, surgery* Heart Septal Defects, Atrial / diagnosis, physiopathology, surgery Heart Ventricles / physiopathology, surgery, ultrasonography Humans Image Processing, Computer-Assisted Intraoperative Care* Male Middle Aged Pulmonary Veins / physiopathology, surgery, ultrasonography Transducers Treatment Outcome Ultrasonography, Interventional / instrumentation* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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