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The topography of the subthebesian fossa in relation to neighbouring structures within the right atrium
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Abstract
Research was conducted on material consisting of 45 human hearts of both sexes, from 19 to 71 years of age. The hearts came from patients whose death was not cardiologic in origin. The topography of the fossa was examined in relation to coronary sinus orifice (diameter A), vena cava inferior orifice (diameter B) and the attachment of the posterior leaflet of the tricuspid valve (diameter C). Besides we measured two perpendicular sizes in the inlet plane of the fossa. There were the longest size (diameter D) and the shortest size of the fossa (diameter E). We also defined deepness of the fossa (diameter F).
Diameter A was from to 2 to 7 mm (avg. 4.9 ± 1.4 mm), diameter B from 2 to 8 mm (avg. 4.0 ± 1.6 mm) and diameter C from 5 to 9 mm (avg. 7.0 ± 1.5 mm). The longest size in inlet plane of the concavity (diameter D) was from 12 to 18 mm (avg.14.1 ± 1.7 mm) and shortest size (diameter E) was from 7 to 14 mm (avg. 9.0 ± 1.7 mm). The deepness of the fossa (diameter F) was from 2 to 7 mm (avg. 4.8 ± 1.2 mm).
The subthebesian concavity is inconstant anatomical structure, occurring in all forty five examined hearts (100%).
The shape and sizes of the subthebesian fossa were variable in examined group of hearts. Our data suggest that differences in diameters between subthebesian fossa and neighboring structures may have clinical importance during ablation procedure.
Abstract
Research was conducted on material consisting of 45 human hearts of both sexes, from 19 to 71 years of age. The hearts came from patients whose death was not cardiologic in origin. The topography of the fossa was examined in relation to coronary sinus orifice (diameter A), vena cava inferior orifice (diameter B) and the attachment of the posterior leaflet of the tricuspid valve (diameter C). Besides we measured two perpendicular sizes in the inlet plane of the fossa. There were the longest size (diameter D) and the shortest size of the fossa (diameter E). We also defined deepness of the fossa (diameter F).
Diameter A was from to 2 to 7 mm (avg. 4.9 ± 1.4 mm), diameter B from 2 to 8 mm (avg. 4.0 ± 1.6 mm) and diameter C from 5 to 9 mm (avg. 7.0 ± 1.5 mm). The longest size in inlet plane of the concavity (diameter D) was from 12 to 18 mm (avg.14.1 ± 1.7 mm) and shortest size (diameter E) was from 7 to 14 mm (avg. 9.0 ± 1.7 mm). The deepness of the fossa (diameter F) was from 2 to 7 mm (avg. 4.8 ± 1.2 mm).
The subthebesian concavity is inconstant anatomical structure, occurring in all forty five examined hearts (100%).
The shape and sizes of the subthebesian fossa were variable in examined group of hearts. Our data suggest that differences in diameters between subthebesian fossa and neighboring structures may have clinical importance during ablation procedure.
Keywords
inferior right atrial wall; isthmus area; ablation procedures
Title
The topography of the subthebesian fossa in relation to neighbouring structures within the right atrium
Journal
Issue
Article type
Original article
Pages
65-70
Published online
2002-12-04
Page views
515
Article views/downloads
962
Bibliographic record
Folia Morphol 2003;62(1):65-70.
Keywords
inferior right atrial wall
isthmus area
ablation procedures
Authors
Dariusz Kozłowski
Adam Owerczuk
Grzegorz Piwko
Magdalena Kozłowska
Krzysztof Bigus
Marek Grzybiak