An update on the variations of the orbital blood supply and hemodynamic

Bertelli, Eugenio; Regoli, Marì; Bracco, Sandra

doi:10.1007/s00276-016-1776-9

Cited by 57 publications

(47 citation statements)

References 57 publications

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“…This difference may be due to poor sensitivity of TOF MRA for detecting OA variants. Compared to the results found in cadaveric studies, other angiographic studies have also reported lower OA variant prevalence rates [5,8,9].…”

Section: Discussioncontrasting

confidence: 58%

“…This parameter was first applied to ascertain the efficacy of angiography for visualizing orbital arteries by Bracco et al [7]. This novel numerical index is the ratio of the frequency of angiographic visualization of Ophthalmic Res 2020;63:341-346 DOI: 10.1159/000502980 an arterial structure and its true incidence [8]. Previously published dissection-based studies are accepted as true anatomic incidence in this field.…”

Section: Discussionmentioning

confidence: 99%

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Anomalous Origins of Ophthalmic Arteries on Three-Dimensional Time-of-Flight Magnetic Resonance Angiography and Their Clinical Importance

et al. 2019

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Aim: The purpose of this paper was to evaluate rare cases of anomalous origins of the ophthalmic artery (OA) according to magnetic resonance angiography (MRA) findings. Methods: This retrospective study included 80 patients diagnosed with anomalous OA origins between March 2015 and July 2018 from a sample of 16,024 patients. The patients included 47 females and 33 males with a mean age of 38.16 years (range 18-62 years). Three-dimensional time-of-flight (3D-TOF) MRA was performed for all patients. Results: Eighty (0.5%) patients had anomalous OA origins. The most common type of OA origin anomaly was the right OA originating from the middle meningeal artery (0.17%). Twelve (0.07%) patients had OAs with an extradural origin. Conclusions: Anomalous origins of the OA are rare. 3D-TOF MRA is a noninvasive imaging method that can be applied for the diagnosis of OA anomalies. Some OA variations can have a protective effect against ocular complications in vaso-occlusive events. Therefore, it is critical to know the variant anatomy of OAs.

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Section: Discussioncontrasting

confidence: 58%

Section: Discussionmentioning

confidence: 99%

Anomalous Origins of Ophthalmic Arteries on Three-Dimensional Time-of-Flight Magnetic Resonance Angiography and Their Clinical Importance

et al. 2019

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“…13 Recent reports, however, disprove this interpretation and consider both PrDOA and PrVOA to be intradural branches of ICA that enters the orbit through the optic canal and related the cavernous origin of the OA to the deep recurrent OA, a branch of the ILT. [5][6][7]11,14 A key finding in the presented case is the segmental hypoplasia of the ICA between the origins of ILT and OA. Lasjaunias and Santoyo-Vazquez divided the ICA into six independent segments, each corresponding to the origin of a specific embryonic artery.…”

Section: Discussionmentioning

confidence: 70%

Anomalous origin of the middle meningeal artery from the inferolateral trunk with an arterial circle around a hypoplastic internal carotid artery in an infant with a dural arteriovenous fistula

et al. 2019

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Deviations from normal embryologic development can manifest in different anatomical variants of the ophthalmic artery. We present a case of an infant treated for a high-flow dural arteriovenous fistula of the superior sagittal sinus, in whom an arterial circle involving the ophthalmic artery, the middle meningeal artery, the inferolateral trunk and a hypoplastic segment of the internal carotid artery was found. The embryologic development is briefly reviewed with emphasis on the possible genesis of this interesting constellation.

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“…The rationale for the medial canthus technique is its safety. In both sagittal and coronal axes, this approach could represent the safest site, with few main adjacent structures (nerves, vessels, or muscles) [6,7]. Additionally, the preferred location of staphyloma is to be temporal and not nasal [8].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study Between Single Medial Canthus Injection Using 13 x 0.45 mm Needle and Posterior Sub-Tenon Injection as Local Anesthesia Techniques for Strabismus Surgery in Adults

Sherif¹,

Mohamad²,

Hannon³

et al. 2020

TOATJ

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Background: The quality of ophthalmic anesthesia is an important component of the surgical procedure. There is no absolutely well-tolerated local eye anesthetic technique. However, it is important to choose a technique with high efficacy and safety. Objective: This study aimed to compare the efficacy and safety of peribulbar block using medial canthus single injection and posterior sub-tenon injection techniques. Methods: This prospective observational study was carried out at the Research Institute of Ophthalmology, Cairo, Egypt during the period from March to December 2018. Consecutive 60 patients of both sexes, aged >18 years-old, scheduled for bilateral strabismus surgery were enrolled in this study. In one eye of the sixty patients, medial canthus single injection peribulbar anesthesia was used (Group A), whereas posterior sub-tenon technique was applied in the other eye (Group B). Results: The median total ocular akinesia score was significantly higher in group A than in group B when assessed at 1, 3, and 5 min (p < 0.001). Each of the intraoperative (at 5 min) and postoperative pain scores showed no significant differences between the two groups (p > 0.05). However, the median scores of surgeon and patient satisfaction were significantly higher in group A compared with group B (3 vs. 2 each, p < 0.05). No patient developed occulocardiac reflex or postoperative nausea and vomiting. Conclusion: Peribulbar anesthesia by medial canthus single injection showed better akinesia of the globe than sub-tenon injection technique. Otherwise, both techniques were equally effective and safe.

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An update on the variations of the orbital blood supply and hemodynamic

Cited by 57 publications

References 57 publications

Anomalous Origins of Ophthalmic Arteries on Three-Dimensional Time-of-Flight Magnetic Resonance Angiography and Their Clinical Importance

Anomalous Origins of Ophthalmic Arteries on Three-Dimensional Time-of-Flight Magnetic Resonance Angiography and Their Clinical Importance

Anomalous origin of the middle meningeal artery from the inferolateral trunk with an arterial circle around a hypoplastic internal carotid artery in an infant with a dural arteriovenous fistula

A Comparative Study Between Single Medial Canthus Injection Using 13 x 0.45 mm Needle and Posterior Sub-Tenon Injection as Local Anesthesia Techniques for Strabismus Surgery in Adults

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