| Catheter optimization during contrast ventriculography: a prospective randomized trial. | |
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MedLine Citation:
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PMID: 1575145 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Although newer contrast mediums have improved hemodynamic stability during left ventriculography, the image quality and hence the diagnostic yield of the procedure is largely determined by the choice of catheter and injection technique. In this study 125 patients were prospectively assigned at random to undergo ventriculography using either of two pigtail catheters, one with a straight shaft throughout its length (straight) and one with a 145-degree bend placed 6.5 cm from the distal end (angled). Injectate composition, flow rate, and volume were held constant for all injections, and baseline clinical and catheterization variables were found to be similar in each group. The angled catheter exhibited a statistically superior ease of insertion (p = 0.038) and took less time to position (p = 0.012), saving a mean of 23 seconds of fluoroscopy time per procedure. It was also associated with superior contour edge definition (p = 0.037) and a trend toward more uniform distribution of contrast medium (p = 0.089). Compared with the straight catheter, the angled catheter was less frequently accompanied by artifactual mitral regurgitation (p = 0.038) but was equally likely to provoke ventricular arrhythmias during injection. These observed differences may be explained in part by the tendency for angled catheters to more frequently localize in the central as opposed to the inferoposterior region of the left ventricular cavity (mean distance from center = 0.53 vs 1.10 cm, respectively; p less than 0.001).(ABSTRACT TRUNCATED AT 250 WORDS) |
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Authors:
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K G Lehmann; J C Yang; R J Doria; K S Kumamoto; J M Feuer; H G Olson; T D Hoang; W C Zeldow |
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Publication Detail:
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Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, U.S. Gov't, Non-P.H.S. |
Journal Detail:
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Title: American heart journal Volume: 123 ISSN: 0002-8703 ISO Abbreviation: Am. Heart J. Publication Date: 1992 May |
Date Detail:
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Created Date: 1992-06-03 Completed Date: 1992-06-03 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 0370465 Medline TA: Am Heart J Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 1273-8 Citation Subset: AIM; IM |
Affiliation:
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Section of Cardiology, Long Beach, Veterans Administration Medical Centers, Calif. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Aged Evaluation Studies as Topic Female Gated Blood-Pool Imaging / instrumentation* Heart Catheterization / adverse effects, instrumentation*, utilization Humans Male Middle Aged Prospective Studies |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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