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Year : 2021  |  Volume : 16  |  Issue : 4  |  Page : 785-791

Microsurgical anatomy of middle cerebral artery in Northwest Indian Population: A cadaveric brain dissection study

1 Department of Neurosurgery, MS Ramaiah Medical College and Hospital, Bengaluru, Karnataka, India
2 Department of Neurosurgery, AIIMS, Delhi, India
3 Department of Neurosurgery, PGIMER, Chandigarh, India
4 Department of Anatomy, PGIMER, Chandigarh, India
5 MBBS Student, MS Ramaiah Medical College and Hospital, Bengaluru, Karnataka, India
6 Department of Neurosurgery, Caritas Hospital, Kottayam, Kerala, India

Correspondence Address:
Dr. Rakshith Srinivasa
371, Anagha, 1st Cross, 2nd Block, R.M.V. Extension 2nd Stage, Sanjaynagar Post, Bengaluru - 560 094, Karnataka
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.ajns_189_21

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Background: Microsurgical anatomy of the Middle Cerebral Artery (MCA) of the Northwest Indian population has not been described to date. A study of cadaveric brains will add to the existing knowledge of brain vessels. Objective: To study and compare the microsurgical anatomy of MCA in Northwest Indian Population with that of the available literature. Methods and Material: 15 Formalin Fixed Cadaveric brains, that is 30 vessels from its origin from Internal Cerebral Artery to M5 segment with respect to diameter, length and branching pattern were studied under high magnification (operating microscope) and the data compared with literature. Results: The main trunk of MCA was 16±3 mm long with no significant differences between both sides. Its outer diameter was 3±0.1 mm. Among the early branches 58% were destined to the temporal lobe. Distance between the origin of the early branch from MCA origin was 4±2mm on the right side and 4.5±2.5 mm on the left side. The most consistent perforating branch group was the intermediate group. The pattern of branching of the main trunk was bifurcation (73%), single trunk (10%) and trifurcation (10%). Within the bifurcation group, inferior trunk dominance was seen in 50%. Amongst the cortical branches diameter of the angular artery was largest and the temporo-polar was smallest. No significant difference in the data as compared to literature. Conclusions: The knowledge of anatomy of MCA and its variations are important for neurosurgical residents' training and neurosurgeons dealing with MCA aneurysm management or bypass surgeries.

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