| Activation mapping from the coronary sinus may be limited by anatomic variations. | |
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MedLine Citation:
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PMID: 9825378 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The purpose of this study was to examine the anatomic relationship between the mitral annulus (MA) and the coronary sinus (CS). Fifty consecutive hearts of 31 men and 19 women, 63.5 +/- 13.7 years of age, were examined at autopsy. MA was divided perpendicularly to the annular plane into an anteromedial block and a posterolateral block by sectioning from the CS ostium through the center of MA. The posterolateral block was subdivided radially into five equal sections at 36 degrees, 72 degrees, 108 degrees, 144 degrees, and 180 degrees. The distance from the ventricular endocardium under MA to the nearest wall of CS (D) was measured in each cross-section. D measured 9.7 +/- 2.3, 10.9 +/- 3.3, 10.2 +/- 3.6, 9.2 +/- 3.4, and 8.2 +/- 2.9 mm at 36 degrees, 72 degrees, 108 degrees, 144 degrees, and 180 degrees, respectively. D at 72 was significantly longer than at 144 degrees and 180 degrees (P < 0.01). Likewise, D at 108 degrees was significantly longer than at 144 degrees and 180 degrees (P < 0.05). The population was divided according to the morphology into five patterns. "Type C," the pattern that separated in the middle section and then reapproximated, was more common (66%) than any other pattern. D was confirmed to be longest at the level of the 72 degrees section, corresponding to a left posterolateral free-wall location. The potential mapping in CS would be easily modified by this anatomic feature. When mapping activation from the CS, the electrophysiological data should be interpreted in light of these anatomic findings. |
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Authors:
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Y Yamanouchi; O Igawa; I Hisatome |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: Pacing and clinical electrophysiology : PACE Volume: 21 ISSN: 0147-8389 ISO Abbreviation: Pacing Clin Electrophysiol Publication Date: 1998 Nov |
Date Detail:
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Created Date: 1999-02-10 Completed Date: 1999-02-10 Revised Date: 2004-11-17 |
Medline Journal Info:
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Nlm Unique ID: 7803944 Medline TA: Pacing Clin Electrophysiol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 2522-6 Citation Subset: IM |
Affiliation:
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First Department of Internal Medicine, Faculty of Medicine, Tottori University, Yonago, Japan. yyamanou@grape.med.tottori-u.ac.jp |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Cadaver Coronary Vessels / anatomy & histology* Electrophysiology Female Heart Catheterization Heart Conduction System / anatomy & histology, physiopathology Humans Male Middle Aged Mitral Valve / anatomy & histology* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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