ArticleEuropean journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery2025
Intraspinal vascular perfusion territories of the descending thoracic aorta.
Article in European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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9 authors.
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Abstract
objectivesOur study aims at characterizing the intraspinal vascular perfusion territories (angiosomes) of the descending thoracic aorta in a cadaver stetting to understand the principles of blood supply to the spinal cord and to provide the anatomic basis for strategies to avoid spinal ischaemia during aorta surgery.
methodsSimulating blood flow in the descending thoracic aorta and thoracic aortic segmental arteries T3-T11 of 8 body donors were perfused with dyed liquids to label the epidural and spinal cord angiosomes.
resultsThe cranial and caudal borders of the spinal cord angiosome varied substantially with a maximum extension from segment C7 to the conus medullaris. In 5 specimens, the anterior and posterior aspects differed for 1-2 segments. In 75%, the anterior spinal artery appeared to be stained along the entire spinal cord, and in 4 specimens, a voluminous Adamkiewicz artery joined its lower thoracic segments. In 3 of those specimens, this caused the spinal cord angiosome to be stained caudally towards the conus medullaris. In addition to details on the spinal cord angiosome, details on the epidural angiosome and the antero- and retrograde perfusion of the spinal nerve roots and the influence of thoracic aortic segmental artery variations are provided.
conclusionsOur study characterizes both intraspinal descending thoracic aorta angiosomes. It demonstrates the importance of the Adamkiewicz and the anterior spinal arteries for blood supply to the spinal cord and the nerve root fibers.
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