Further Investigations on the Anatomy of the Origin of the Ophthalmic Artery

Bock, Jang Jun; Schwarz-Karsten, Hans

doi:10.1016/0002-9394(55)90164-1

Cited by 10 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Duke-Elder (1932) stated that it would also help to ensure an adequately high arterial pressure in the eye. Bock andSchwarz-Karsten (1953, 1955) also pointed out that the ophthalmic artery, because of its acute angle with the internal carotid artery at its origin, runs against the direction of the blood-flow in the internal carotid artery (Fig. 1046).…”

mentioning

confidence: 99%

Arteries of the orbit in the human being

Hayreh

1963

Journal of British Surgery

View full text Add to dashboard Cite

mentioning

confidence: 99%

Arteries of the orbit in the human being

Hayreh

1963

Journal of British Surgery

View full text Add to dashboard Cite

“…22,44 Thus, a new, computer-supported, 3D-reconstruction technique was used in the present study. 39 The computer images were captured directly from the histologically stained surface of the paraffin block during sectioning, thus avoiding all artifacts caused by section processing.…”

Section: Discussionmentioning

confidence: 99%

“…8,9 Such intimal cushions occur after vascular injury 10 -12 and vascular surgery, [13][14][15][16][17] but they are also physiologically present near the branchings and divisions of intracranial arteries in neonates 18 -21 and infants. [22][23][24] The extracranial carotid system and its intracranial branches have been studied extensively in regard to intimal hyperplasia and atherosclerosis. [25][26][27][28] In contrast, information about the occurrence, position, and size of intimal hyperplasia in the pICA is scant, and information about atherosclerotic plaques is contradictory.…”

mentioning

confidence: 99%

Intimal Hyperplasia of the Infant Parasellar Carotid Artery

Weninger

Müller

Reiter

et al. 1999

Circulation Research

View full text Add to dashboard Cite

Abstract-Intimal cushions that project into the lumen of arteries are precursors of atherosclerotic plaque formation. The "carotid siphon," although frequently affected by atherosclerosis, was never analyzed for the occurrence of neonatal intimal hyperplasia. This study provides a topographic and morphometric analysis of intimal cushions in the parasellar internal carotid artery (pICA) of the human infant. A total of 35 specimens were studied in detail, using both standard histological techniques and a new method of computer-aided 3D reconstruction. Intimal hyperplasia occurred at 3 characteristic locations of the pICA: (1) the convex side of the posterior knee (C5 cushion), (2) the bottom of the horizontal segment (C4 cushion), and (3) the concave side of the anterior knee (C3 cushion). The extension of the cushions and the degrees to which they occluded the vessel lumens were measured. The complex shape of the pICA required 3D computer models for exact topographical descriptions and precise measurements. Our results suggest that the occurrence and degree of intimal hyperplasia are related to shape changes of the pICA during postnatal development. We predict that individuals who retain the relatively straight course of the fetal pICA throughout their lives are less prone to develop atherosclerotic lesions at this portion of the carotid artery. Key Words: intimal cushion Ⅲ hemodynamics Ⅲ 3D reconstruction Ⅲ internal carotid artery Ⅲ child I n the carotid artery system, the parasellar internal carotid artery (pICA) has a high propensity toward atherosclerosis, and lesions at this location frequently cause stroke. 1-7 Sites of intimal hyperplasia, which appear as intimal cushions that project into the lumen of arteries, represent precursors of atherosclerosis. 8,9 Such intimal cushions occur after vascular injury 10 -12 and vascular surgery, 13-17 but they are also physiologically present near the branchings and divisions of intracranial arteries in neonates 18 -21 and infants. [22][23][24] The extracranial carotid system and its intracranial branches have been studied extensively in regard to intimal hyperplasia and atherosclerosis. [25][26][27][28] In contrast, information about the occurrence, position, and size of intimal hyperplasia in the pICA is scant, and information about atherosclerotic plaques is contradictory. 29 -35 This lack of information is caused by the hidden position of the pICA, which prevents the use of modern in vivo techniques such as ultrasound. In addition, the strongly curved course of the blood vessel impedes exact positional and morphometric analyses based on individual histological sections.In 84% of adults, the pICA has the characteristic doublebent shape that gave rise to the term "carotid siphon," 36 but in all neonates, the pICA takes a much straighter course. This indicates that the shape of the pICA is strongly transformed during early childhood. 37 This period of life also coincides with the occurrence of sudden infant death syndrome (SIDS).One of the established factors in the...

show abstract

The Ophthalmic Artery

Hayreh

2014

Ocular Vascular Occlusive Disorders

View full text Add to dashboard Cite

Further Investigations on the Anatomy of the Origin of the Ophthalmic Artery

Cited by 10 publications

References 1 publication

Arteries of the orbit in the human being

Arteries of the orbit in the human being

Intimal Hyperplasia of the Infant Parasellar Carotid Artery

The Ophthalmic Artery

Contact Info

Product

Resources

About