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Study on branching pattern of aortic arch in Indian.

Patil ST, Meshram MM, Kamdi NY, Kasote AP, Parchand MP - Anat Cell Biol (2012)

Bottom Line: Seventy five arches of adult Indian cadavers were exposed and their branches examined during cadaveric dissection in the Department of Anatomy, Government Medical College, Nagpur.The usual three-branched aortic arch was found in 58 cadavers (77.3%); the 11 (14.66%) remaining aortic arch showed only two branches, out of which one was a common trunk, which incorporated the brachiocephalic trunk and left common carotid and other left subclavian artery and 6 (8%) aortic arches showed direct arch origin of the left vertebral artery.Knowledge of different patterns of arch of aorta is critical when invading the arch of aorta and its branches by instruments, as all these areas are delicate.

View Article: PubMed Central - PubMed

Affiliation: Department of Anatomy, Government Medical College, Nagpur, Maharashtra, India.

ABSTRACT
Knowledge of the branching pattern of aortic arch is important during supra-aortic angiography, aortic instrumentation, thoracic and neck surgery. The purpose of this study is to describe different branching pattern of arch of aorta in Indian subjects, in order to offer useful data to anatomists, radiologists, vascular surgeons while relating it to the embryological basis. Seventy five arches of adult Indian cadavers were exposed and their branches examined during cadaveric dissection in the Department of Anatomy, Government Medical College, Nagpur. The usual three-branched aortic arch was found in 58 cadavers (77.3%); the 11 (14.66%) remaining aortic arch showed only two branches, out of which one was a common trunk, which incorporated the brachiocephalic trunk and left common carotid and other left subclavian artery and 6 (8%) aortic arches showed direct arch origin of the left vertebral artery. Although the variations are usually asymptomatic, they may cause dyspnoea, dysphasia, intermittent claudication, misinterpretation of radiological examinations and complications during neck and thorax surgery. Knowledge of different patterns of arch of aorta is critical when invading the arch of aorta and its branches by instruments, as all these areas are delicate.

No MeSH data available.


Related in: MedlinePlus

Showing type II B aortic arch. BCT, brachiocephalic trunk; GT, great trunk; LC, left common carotid; LS, left subclavian; RS, right subclavian; T, trachea.
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Figure 2: Showing type II B aortic arch. BCT, brachiocephalic trunk; GT, great trunk; LC, left common carotid; LS, left subclavian; RS, right subclavian; T, trachea.

Mentions: The aortic arch pattern type II was found in 11 specimens (14.66%) which had only 2 great branches. They originated from the upper convex surface of the aortic arch. The first was a common trunk designated the great trunk (GT), which incorporated the brachiocephalic trunk and left common carotid. The second was left subclavian, rising independently distal to the origin of the GT (Fig. 1). Accordingly the length of GT type II was further classified into two types. Type II A had long length near about 4-6 cm (as in Fig. 1) while type II B had very short GT so that left common carotid artery appears to start from the root of brachiocephalic trunk. Out of 11 specimens of type II, four were of type II A and seven were of type II B (Fig. 2).


Study on branching pattern of aortic arch in Indian.

Patil ST, Meshram MM, Kamdi NY, Kasote AP, Parchand MP - Anat Cell Biol (2012)

Showing type II B aortic arch. BCT, brachiocephalic trunk; GT, great trunk; LC, left common carotid; LS, left subclavian; RS, right subclavian; T, trachea.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3472147&req=5

Figure 2: Showing type II B aortic arch. BCT, brachiocephalic trunk; GT, great trunk; LC, left common carotid; LS, left subclavian; RS, right subclavian; T, trachea.
Mentions: The aortic arch pattern type II was found in 11 specimens (14.66%) which had only 2 great branches. They originated from the upper convex surface of the aortic arch. The first was a common trunk designated the great trunk (GT), which incorporated the brachiocephalic trunk and left common carotid. The second was left subclavian, rising independently distal to the origin of the GT (Fig. 1). Accordingly the length of GT type II was further classified into two types. Type II A had long length near about 4-6 cm (as in Fig. 1) while type II B had very short GT so that left common carotid artery appears to start from the root of brachiocephalic trunk. Out of 11 specimens of type II, four were of type II A and seven were of type II B (Fig. 2).

Bottom Line: Seventy five arches of adult Indian cadavers were exposed and their branches examined during cadaveric dissection in the Department of Anatomy, Government Medical College, Nagpur.The usual three-branched aortic arch was found in 58 cadavers (77.3%); the 11 (14.66%) remaining aortic arch showed only two branches, out of which one was a common trunk, which incorporated the brachiocephalic trunk and left common carotid and other left subclavian artery and 6 (8%) aortic arches showed direct arch origin of the left vertebral artery.Knowledge of different patterns of arch of aorta is critical when invading the arch of aorta and its branches by instruments, as all these areas are delicate.

View Article: PubMed Central - PubMed

Affiliation: Department of Anatomy, Government Medical College, Nagpur, Maharashtra, India.

ABSTRACT
Knowledge of the branching pattern of aortic arch is important during supra-aortic angiography, aortic instrumentation, thoracic and neck surgery. The purpose of this study is to describe different branching pattern of arch of aorta in Indian subjects, in order to offer useful data to anatomists, radiologists, vascular surgeons while relating it to the embryological basis. Seventy five arches of adult Indian cadavers were exposed and their branches examined during cadaveric dissection in the Department of Anatomy, Government Medical College, Nagpur. The usual three-branched aortic arch was found in 58 cadavers (77.3%); the 11 (14.66%) remaining aortic arch showed only two branches, out of which one was a common trunk, which incorporated the brachiocephalic trunk and left common carotid and other left subclavian artery and 6 (8%) aortic arches showed direct arch origin of the left vertebral artery. Although the variations are usually asymptomatic, they may cause dyspnoea, dysphasia, intermittent claudication, misinterpretation of radiological examinations and complications during neck and thorax surgery. Knowledge of different patterns of arch of aorta is critical when invading the arch of aorta and its branches by instruments, as all these areas are delicate.

No MeSH data available.


Related in: MedlinePlus