Petrobasal Vein: A Previously Unrecognized Vein Directly Connecting the Superior Petrosal Sinus with the Emissary Vein of the Foramen Ovale

2021 ◽  
Author(s):  
S. Ide ◽  
H. Kiyosue ◽  
R. Shimada ◽  
S. Tanoue ◽  
K. Tokuyama ◽  
...  
Keyword(s):  
Foramen Ovale ◽  
Emissary Vein ◽  
Superior Petrosal Sinus

ANATOMICAL VARIATIONS OF FORAMEN OVALE AND CLINICAL SIGNIFICANCE

2021 ◽  
pp. 29-31
Author(s):  
Gyan Prakash Mishra ◽  
Ajay Singh Rajput ◽  
Stuti Tandon
Keyword(s):  
Anterior Margin ◽  
Percutaneous Biopsy ◽  
Diagnostic Procedures ◽  
Anatomical Variations ◽  
Middle Cranial Fossa ◽  
Mandibular Nerve ◽  
Foramen Ovale ◽  
Emissary Vein ◽  
Bony Plate ◽  
Cranial Fossa

INTRODUCTION: The foramen ovale is present in sphenoid bone which transmits the mandibular nerve, accessory meningeal artery, emissary vein and the lesser petrosal nerve. This study was conducted on a total 100 si MATERIALS & METHODS: des in 50 dry adult skulls. The shape of foramen will be determined by a visual examination. Margins of foramen were carefully observed for the abnormal bony outgrowths such as sharp bony projections (spine), small blunt bony projection (tubercle), bony plate and bony bar. We obs RESULTS: erved the variations in shape of foramen ovale. We found oval, almond, round, triangular, slit like and irregular shaped in 62%, 20%, 9%, 4%, 3% and 2% foramina ovale respectively. We also observed abnormal bony outgrowths in the foramen ovale like spines, tubercles, bony plate and bony bar. Abnormal bony bar was dividing the foramen ovale in 2 compartments (Anterior and Posterior). The preci CONCLUSIONS: se knowledge of variations of foramen ovale is of valuable contribution for neurosurgeons to development of new and different techniques to approach the middle cranial fossa. In our study we found , 100% tubercles and 80% spines were arising from anterior margin of foramen ovale. These ndings are important for neurosurgeons to approach middle cranial fossa via foramen ovale for neurosurgical and diagnostic procedures like percutaneous biopsy of cavernous sinus tumours, electroencephalographic analysis, microvascular decompression , percutaneous trigeminal rhizotomy and administration of anaesthesia to the mandibular nerve. Surgeons should avoid to go , close to the anterior margin of foramen ovale as spines and tubercles could interrupt the procedures.

scholarly journals A rare anatomical variation in foramen of Vesalius: A useful guide for maxillofacial surgeons

2022 ◽  
Vol 9 (1) ◽  
pp. 001-004
Author(s):  
G. Priya
Keyword(s):  
Trigeminal Nerve ◽  
Anatomical Variation ◽  
Anatomical Variations ◽  
Foramen Ovale ◽  
Emissary Vein ◽  
College Hospital ◽  
Main Site ◽  
Medical College ◽  
Human Skulls ◽  
Foramen Of Vesalius

Background: Foramen of vesalius is an inconstant foramen that gives passage to an emissary vein that connects pterygoid venous plexus with cavernous sinus. It lies in the anteromedial side of the foramen ovale. Foramen ovale allows the passage for the mandibular branch of trigeminal nerve, the main site for the trigeminal rhizotomy. The presence and description of anatomical variations about the foramen of Vesalius is important during the surgical procedure on the trigeminal nerve which may injure the emissary vein in the foramen leading to intracranial bleeding. Objectives: The aim of the present study is to report the presence and to enlighten the anatomical variations of foramen vesalius which may serve as a guideline for surgeons. Methods: The study was conducted on 100 dry adult human skulls collected from the department of anatomy at Panimalar medical college hospital & research institute Chennai. The skulls were viewed both extracranially and intracranially to identify the presence of foramen of vesalius. The presence and variation of the foramen was noted and discussed. Result: A total of about 200 sides of 100 skulls were studied. Among them 20% of the skull showed presence of foramen of Vesalius bilaterally, 25% unilaterally and one particular skull showed doubled opening on the left side with the presence of a bony septum. This is a rare variation which was less documented in the literature. Conclusion: The knowledge of variations in foramen of Vesalius may help the surgeons for safer planning and execution of the trigeminal rhizotomy technique.

scholarly journals Spontaneous Isolated Dural Arteriovenous Fistula of the Cavernous Sinus: Endovascular Approach via the Foramen Ovale

2012 ◽  
Vol 18 (4) ◽  
pp. 458-462 ◽  
Author(s):  
G. Cabral de Andrade ◽  
H.P. Alves ◽  
R. Parente ◽  
C.P. Salvarani ◽  
V.M. Clímaco ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Endovascular Treatment ◽  
Cavernous Sinus ◽  
Inferior Petrosal Sinus ◽  
Foramen Ovale ◽  
Superior Ophthalmic Vein ◽  
Conjunctival Hyperemia ◽  
Emissary Vein ◽  
Direct Puncture ◽  
Facial Vein

The endovascular treatment of spontaneous dural cavernous sinus fistula (DAVF) can be accomplished by arterial approach, just with symptoms relief, or by numerous venous approaches through the inferior petrosal sinus, ophthalmic vein, anterior or posterior intercavernous sinus and facial vein. Our case suggests the approach to the cavernous sinus via the foramen ovale and emissary veins puncture as an alternative when there is no possibility of venous approach conventionally described. A 76-year-old woman presented with right conjunctival hyperemia, exophthalmos, intraocular pressure increasing and visual deficits in a period of six months. Angiographic diagnosis of spontaneous DAVF isolated from the cavernous sinus, Barrow Type C, with exclusive venous drainage through the superior ophthalmic vein. Endovascular treatment was performed under general anesthesia. Attempts to approach the cavernous sinus through the inferior petrosal sinus ipsilateral and contralateral intercavernous, facial vein and pterygoid plexus, as well as by dissection and direct puncture of the superior ophthalmic vein were not possible. An approach to the cavernous sinus was performed by puncturing the foramen ovale, catheterization of the emissary vein of the foramen ovale with occlusion of the fistula with microcoils. There was a symptomatic regression with gradual normalization of intraocular pressure, exophthalmos and conjunctival hyperemia in three months. The approach to the cavernous sinus through the foramen ovale and catheterization of the emissary cranial skull base vein is an exception and should be considered in cases of spontaneous and isolated DAVF not accessible by a conventional approach.

Sekundärprävention des Schlaganfalls

2018 ◽  
Vol 75 (7) ◽  
pp. 420-424
Author(s):  
Smaila Mulic ◽  
Timo Kahles ◽  
Krassen Nedeltchev
Keyword(s):  
Medikamentöse Therapie ◽  
Foramen Ovale ◽  
Sind Eine

Zusammenfassung. Der Schlaganfall gehört zu den häufigsten Erkrankungen und ist die häufigste Ursache von bleibenden Behinderungen im Erwachsenenalter. Grundzüge der Sekundärprophylaxe des Schlaganfalls sind eine medikamentöse Therapie, Optimierung der modifizierbaren Risikofaktoren, die Revaskularisation einer symptomatischen Karotisstenosen sowie der Verschluss eines Persistierenden Foramen Ovale (bei Patienten unter 60 Jahren mit kryptogenem Schlaganfall).

Zwei Jugendliche mit cerebralem Infarkt bei persistierendem Foramen ovale

2009 ◽  
Vol 221 (02) ◽  
Author(s):  
U Waldthausen ◽  
D Dunstheimer ◽  
G Buheitel ◽  
PH Heidemann
Keyword(s):  
Foramen Ovale

Fetaler Pulmonalvenenfluss und Foramen ovale Restriktion bei Hypoplastischem Linksherz

2012 ◽  
Vol 33 (S 02) ◽  
Author(s):  
C Enzensberger ◽  
J Degenhardt ◽  
A Kawecki ◽  
J Weichert ◽  
U Gembruch ◽  
...  
Keyword(s):  
Foramen Ovale

Gerinnungsstörungen und Schlaganfall

2006 ◽  
Vol 26 (04) ◽  
pp. 309-315 ◽  
Author(s):  
Ch. C. Eschenfelder ◽  
R. Stingele ◽  
J. A. Zeller
Keyword(s):  
Protein C ◽  
Foramen Ovale ◽  
Offenes Foramen Ovale ◽  
At Iii

ZusammenfassungHereditäre und erworbene Gerinnungsstörungen können bei der Schlaganfallentstehung eine wichtige Rolle spielen. Wegen der Seltenheit der meisten erblichen Gerinnungsstörungen und der erheblichen Kosten, die sich aus einer unkritischen Indikationsstellung ergeben, ist eine maßgeschneiderte Diagnostik sinnvoll. Suggestive Hinweise auf eine Gerinnungsstörung sind niedriges Lebensalter, mehrfache Thrombosen in der Anamnese, altersuntypische Gefäßdegenerationen, vorherige Aborte bei Schlaganfallpatientinnen oder strukturelle Herzveränderungen (z. B. offenes Foramen ovale). Störungen von AT III, Protein C und S, APC-Resistenz, Prothrombinmutation, Homocysteinämie, Antiphospholipidantikörper und prokoagulatorische zelluläre Interaktionen werden diskuiert.

Migräne und offenes Foramen ovale — Was ist gesichert?

2007 ◽  
Vol 26 (01/02) ◽  
pp. 27-31
Author(s):  
S. Evers
Keyword(s):  
Foramen Ovale ◽  
Offenes Foramen Ovale

ZusammenfassungFallberichte über ein Sistieren von Migräne durch den Verschluss eines offenen Foramen ovale (PFO) haben in letzter Zeit zu epidemiologischen und therapeutischen Studien über diesen Zusammenhang geführt. Dabei konnte gezeigt werden, dass die Prävalenz eines PFO bei Patienten mit Migräne ca. doppelt so hoch ist wie in der Allgemeinbevölkerung. In retrospektiven offenen Studien zeigten sich auch Besserungsraten von zum Teil über 70% der Migränefrequenz nach Verschluss eines PFO. In einer jüngst vorgestellten randomisierten, doppelblinden, Placebo-kontrollierten Studie konnte kein Effekt des Verschlusses eines PFO auf die Beschwerdefreiheit von Migräne nachgewiesen werden, allerdings zeigte sich auch hier ein signifikanter Rückgang der Migränefrequenz nach dem Verschluss. Weitere Studien bleiben abzuwarten. Bis dahin kann der Verschluss eines PFO zur Behandlung der Migräne nicht empfohlen werden.

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