Kedi beyininde circulus arteiosus’un yapısı

Yıl 2012, Cilt: 28 Sayı: 4, 204 - 208, 01.12.2012

Marcelo Salvador Gomes Gabriel Pinto Dias Mauricio Portes Santos Sobrado Silva Clarice Machado dos Santos Marcelo Abidu-figueiredo

Öz

Amaç: Bu çalışmanın amacı, kedide her iki cinsiyete ait circulus arteriosus’u oluşturan yapıların tanımlanmasıdır.Gereç ve Yöntem: Çalışma, burun-sakrum uzunluğu sırası ile 47.9 cm ve 46.6 cm olan 25 erkek ve 25 dişi yetişkin kedi kadavrası üzerinde gerçekleştirildi. Kediler sağ lateral tarafa yatırıldı, torakal ensizyon ile 6. ve 7. torakal kostalar uzaklaştırılarak aortanın torakal bölümü kanüle edildi. Kediler %10 formol solüsyonu ile tespit edilip boyalı latex solüsyonu enjekte edildikten sonra craniumlar açıldı ve beyin diseke edilerek circulus arteriosus’un yapısı tanımlandı.Bulgular: Beyinin tabanında yer alan arterler, arteria carotis ve vertebral-basillar sistemden köken alan ve beyinin arteriel vaskularizasyonundan sorumlu olan arterlerdi. Circulus arteriosus’un rostral bölümünün, arteria communicans rostralis’in varlığı durumunda hayvanların % 46’sında bu arter tarafından kapatıldığı, arka bölümünün ise hayvanların tamamında kapalı olduğu tespit edildi. Öneri: Encephalon’un basal yüzünün kan damarlarının muhtemel varyasyonlarını, dağılımını ve yerleşimini inceleyen çalışmalar, evcil memeli hayvanlarda klinik ve cerrahi yaklaşımların gelişimine katkı sağlayacaktır.

Anahtar Kelimeler

Damarlaşma, merkezi sinir sistemi, kedi

Circulus arteriosus formation in cat brain

Öz

Aim: The aim of this study was to describe the formation of the circulus arteriosus of the brain in cats of both sexes. Materials and Methods: Anatomical dissections were performed on 50 cadavers of adult cats, 25 males and 25 females, with a medium rostrum-sacral length of 47.9 cm and 46.6 cm respectively. Cats were positioned in right lateral recumbency and a thoracic incision was performed to remove the 6th and 7th ribs to cannulate the thoracic portion of the aorta. After fixed with a 10% formaldehyde solution and injected with latex solution stained with pigment, the cats went through craniotomy and dissection of the brain to identify the formation of the circulus arteriosus. Results: The arteries of the base of the brain were dependent of the carotid and vertebral-basilar systems, which were responsible for the brain arterial circuit formation. The brain circuit was rostrally closed by the presence of the rostral communicating artery in 46% of the animals and caudally closed in 100%.Conclusions: Studies that clarify the organization, distribution and possible variations of the blood vessels of the encephalon base, certainly will contribute for the advance in the clinical-surgical boarding in domestic animals.

Anahtar Kelimeler

Irrigation, central nervous system, feline

Kaynakça

• Alcantara MA, Prada ILS, 1996a. Arterias da base do encefalo de caes (Canis familiaris, Linnaeus, 1758). I. Estudo anatômico de suas origens e comportamento. Braz J Vet Res Anim Sci, 33, 67-71.
• Almeida L, Campos RA, 2011. Systematic study of the brain base arteries in broad-snouted caiman (Caiman latirostris). J Morphol Sci, 28, 62-68.
• Araujo ACP, Campos RA, 2005. Systematic study of the brain base arteries and their blood supply sources in the chinchilla (Chinchilla lanigera-Molina 1782). Braz J Morphol Sci, 22, 221-32.
• Aydin, A, 2008. The morphology of circulus arteriosus cerebri in the red squirrel (Sciurus vulgaris) Veterinarni Medicina, 53, 272-276.
• Aydin A, Ozkan ZE, Yilmaz S, Ilgun R, 2009. The morphology of the circulus arteriosus cerebri in the ground squirrel (Spermophilus citellus). Vet Med, 54, 537-542.
• Aydin A, Yilmaz S, Dinc G, Ozdemir D, Karan M, 2005. The morphology of circulus arteriosus cerebri in the porcupine (Hystrix cristata). Vet Med, 50, 131-135.
• Azambuja RC, 2007. Sistematizaçao das arterias da base do encefalo e suas fontes de suprimento sangüineo em nutria (Myocastor coypus). Acta Sci Vet, 35, 277-278.
• Cambier J, Masson M, Dehen H, 1999. Manual de neurologia, 9th edition, Rio de janeiro-RJ, Medsi, Brazil, pp:558 De Vriese B, 1905. mSur la signification morphologique des arteres cerebrales. Arch Biol, 21, 357-457.
• Ferreira CG, Prada ILS, 2005. O circuito arterial da base do encefalo em suinos (Sus scrofa domesticus Linnaeus, 1758), formaçao e comportamento. Braz J Vet Res Anim Sci, 42, 53-60.
• Kano H, Niranjan A, Khan A, Flickinger JC, Kondziolka D, Lieberman F, Lunsford LD, 2009. Does radiosurgery have a role in the management of oligodendrogliomas? J Neurosurg, 110, 564-571.
• Lima EMM, Prada ILS, Silva FOC, Severino RS, Santos ALQ, Drummond SS, Rodrigues GS, 2006. Estudo anatômico das artérias da base do encéfalo em gatos (Felis catus domesticus). Ars Vet, 22, 1-7.
• McDonald DA, Potter JM, 1951. The distribution of blood to the brain. J Physiol, 114, 356-71.
• Meneses MS, 2006. Neuroanatomia aplicada, 2nd edition,Rio de Janeiro-RJ, Guanabara Koogan, Brazil, pp:368 Nazer MB, Campos R, 2011. Systematization of the brain base arteries in ostrich (Struthio camelus). J Morph Sci, 28, 268-274.
• Ocal MK, Erden H, Ogut I, Kara ME, 1999. A quantitative study of the circulus arteriosus cerebri of the camel (Camelus dromedarius). Anat Histol Embryol, 28, 271272.
• Oliveira JC, Campos R, 2005. A systematic study of brain base arteries in the wild boar (Sus scrofa scrofa). Anat Histol Embryol, 34, 232-239.
• Quinones-Hinojosa A, Ware ML, Sanai N, McDermott MW, 2006. Assessment of image guided accuracy in a skull model: comparison of frameless stereotaxy techniques vs. frame-based localization. J Neurooncol, 76, 65-70.
• Reckziegel SH, Lindemann T, Campos R, 2001. A systematic study of the brain base arteries in capybara (Hydrochoerus hydrochaeris). Braz J Morphol Sci, 18, 103-110.
• Schaller O, 1999. Nomenclatura anatomica veterinaria ilustrada. 1th edition, Sao Paulo-SP, Manole, Brazil, pp: 614
• Simon M, Schramm J, 2009. Surgical management of intracranial gliomas. Recent Results Cancer Res, 171, 105-124.
• Szeifert GT, Prasad D, Kamyrio T, Steiner M, Steiner LE, 2007. The role of the Gamma Knife in the management of cerebral astrocytomas. Progr Neurol Surg, 20, 150-163.
• Wiland C, 1974. Comparative study on structure and variation in basal arteries of the brain in laboratory mouse. Anat Anz, 135, 455-464.
• Young PA, Young PH, 1998. Bases da neuroanatomia clinica. 1th edition, Rio de janeiro-RJ, Editora Guanabara Koogan, Brazil, pp: 286