scholarly journals Variations in the aortic - common iliac bifurcation in man - a cadaveric study

2013 ◽  
Vol 02 (02) ◽  
pp. 056-060
Author(s):  
Maneesha Sharma ◽  
Tripta Sharma ◽  
Richhpal Singh
Keyword(s):  
Abdominal Aorta ◽  
Abdominal Cavity ◽  
Lumbar Vertebra ◽  
Anatomical Variations ◽  
Iliac Arteries ◽  
Medical College ◽  
Great Vessels ◽  
Exact Position ◽  
Vertebral Bodies ◽  
Common Iliac Arteries

Abstract Background and aims: The abdominal aorta usually terminates at the level of L4 vertebral body into common iliac arteries. With the present day advancements in vascular surgery and neurological surgeries involving approach to lumbar vertebral bodies, we need to know any variations from this normal course. So, the present study aimed at knowing the anatomical variations in the termination of abdominal aorta and in common iliac arteries which might prove to be of some help in some of such surgeries. Material and methods: The study was conducted on 35 adult (29 males and 6 females) embalmed cadavers obtained from anatomy departments of Govt. Medical college, Amritsar and Gian Sagar Medical college, Ramnagar, Punjab. The abdominal cavity was opened, peritoneum stripped off from aorta at its bifurcation, variations in its termination, common iliac arteries and their branches were carefully observed and recorded. Results: In 54.29% cases the level of aortic bifurcation was found opposite 4th Lumbar vertebra, in the rest it was variable between L3 and L5 vertebra. Conclusions: These variations may lead to some trouble during vertebral surgeries, making it essential to investigate and locate the exact position of great vessels before the commencement of surgery.

scholarly journals MORPHOMETRIC STUDY OF THE AREOLAR SPACE BETWEEN THE GREAT VESSELS AND THE LUMBAR SPINE

2015 ◽  
Vol 14 (4) ◽  
pp. 271-275
Author(s):  
Luis Marchi ◽  
Leonardo Oliveira ◽  
Rodrigo Amaral ◽  
Fernanda Fortti ◽  
Luiz Pimenta ◽  
...  
Keyword(s):  
Lumbar Spine ◽  
Abdominal Aorta ◽  
Vena Cava ◽  
Distal Portion ◽  
Lateral Approach ◽  
Morphometric Study ◽  
Disc Diameter ◽  
Lumbar Level ◽  
Great Vessels ◽  
Vertebral Bodies

Objective : This work aims to study the areolar space anterior to the lumbar spine, and also the positioning of the large vessels focusing a lateral approach. Methods :This is a morphometric study of 108 cases based on T2 weighted-MRI images in the supine position. The following measurements were performed: lumbar and segmental lordosis; anteroposterior disc diameter; space between the disc/vertebral body and the vessels; bifurcation between the abdominal aorta and the common iliac veins confluence in relation to the lumbar level. Results :The areolar space with respect to the iliac veins, and with the vena cava increased cranially (p<0.001), starting from average 0.6mm at L4-L5 and reaching 8.4mm at L2, while the abdominal aorta showed no increase or decrease pattern across the different levels (p=0.135) ranging from 1.8 to 4.6mm. The diameter of the discs increased distally (p<0.01) as well as the lordosis (p<0.001). The disc diameter was 11% larger when compared to the adjacent vertebral bodies (p<0.001) and that resulted in a smaller distance of the vessels in the disc level than in the level of the adjacent vertebral bodies (p<0.001). The aortic bifurcation was generally ahead of L4 (52%) and less frequently at L3-L4 (28%) and L4-L5 (18%). The confluence of the veins was usually at the L4-L5 level (38%) and at L5 (37%), and less frequently at L4 (26%). Conclusions : There is an identifiable plane between the great vessels and the lumbar spine which is particularly narrow in its distal portion. It is theoretically feasible to reach this plan, handle the anterior complex disc/ALL and protect the great vessels by lateral approach, however, it is challenging.

scholarly journals Anatomy of the abdominal aorta in the hoary fox (Lycalopex vetulus, Lund, 1842)

2018 ◽  
Vol 55 (4) ◽  
pp. e146491
Author(s):  
Dara Rúbia Souza Silva ◽  
Mônica Duarte da Silva ◽  
Marcos Paulo Batista de Assunção ◽  
Eduardo Paul Chacur ◽  
Daniela Cristina De Oliveira Silva ◽  
...  
Keyword(s):  
Abdominal Aorta ◽  
Median Plane ◽  
Celiac Artery ◽  
Renal Arteries ◽  
Mesenteric Arteries ◽  
Lumbar Region ◽  
Iliac Arteries ◽  
Median Sacral Artery ◽  
Internal Iliac ◽  
Vertebral Bodies

The hoary fox (Lycalopex vetulus, Lund, 1842) is the smallest Brazilian canid, whose weight varies between 2 and 4 kg, has a slender body, a small head, and a short and blackened snout. Despite being considered an endemic species, little is known about the hoary fox as it is one of the seven less studied canids in the world. Thus, this study aimed to describe the anatomy of the abdominal aorta artery of the hoary fox and to compare it with the pre-established literature data in domestic canids. For this purpose, we used two adult hoary foxes without definite age. We collected the corpses of these animals along roadsides of Catalão-GO, being later fixed and conserved in a 10% formalin solution. The results showed that the abdominal aorta in hoary fox is at the ventral face of the lumbar region vertebral bodies, being slightly displaced to the left of the median plane. The first branch is visceral, named celiac artery, followed by a paired parietal branch: the phrenic abdominal arteries. The third and fourth branches are the cranial mesenteric arteries and the rightand left are the renal arteries, respectively. The posterior branches of the renal arteries are equally visceral, paired, being called testicular arteries. Distal to the latter, both the caudal mesenteric artery and deep circumflex iliac arteries originate. Finally, two large external iliac arteries and its terminal branches composed of internal iliac arteries and the median sacral artery originate. In addition, five pairs of lumbar arteries originate alongside the abdominal segment of the aorta. Considering these findings, it is possible to conclude that despite the hoary fox being a wild animal, the anatomy of its abdominal aorta is very similar to that of domestic canids.

Severe obstructive calcifications affecting the descending and suprarenal abdominal aorta without coexisting peripheral atherosclerotic disease – coral reef aorta

VASA ◽  
2006 ◽  
Vol 35 (3) ◽  
pp. 206-208 ◽  
Author(s):  
Teebken ◽  
Pichlmaier ◽  
Kühn ◽  
Haverich
Keyword(s):  
Coral Reef ◽  
Abdominal Aorta ◽  
Bypass Graft ◽  
Retroperitoneal Approach ◽  
Rare Form ◽  
Iliac Arteries ◽  
Descending Aorta ◽  
Aortic Replacement ◽  
Thoracic And Abdominal ◽  
Common Iliac Arteries

The case of a 58-year-old woman with leg claudication due to a very rare form of atherosclerosis affecting the descending thoracic and abdominal aorta – known as coral reef aorta – without involvement of the femoro-distal vessels is reported. The patient was treated with a polyester bifurcation graft from the proximal descending aorta to both common iliac arteries via a left dorsal minithoracotomy and a second left retroperitoneal approach. This unusual approach was chosen instead of direct aortic replacement in order to prevent paraplegia. In case of future visceral or left renal malperfusion the diseased artery can be connected to the prosthesis directly or by the use of an additional bypass graft. This would not be the case with a conventional axillo-bifemoral graft.

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