Intimal dissection of the superficial temporal artery

Area of Science:

• Neurosurgery
• Vascular Surgery
• Anatomical Studies

Background:

• Superficial temporal artery-middle cerebral artery (STA-MCA) anastomosis is a critical neurosurgical procedure.
• Technical failures in STA-MCA anastomosis can lead to poor patient outcomes.
• Intraoperative anatomical variations are often implicated in surgical complications.

Purpose of the Study:

• To report the intraoperative finding of superficial temporal artery intimal dissection in patients undergoing STA-MCA anastomosis.
• To elucidate the potential role of this intimal abnormality and other anatomical variants in technical failures.
• To describe a successful surgical technique for managing intimal flaps during anastomosis.

Main Methods:

• Case series of three patients undergoing STA-MCA anastomosis.
• Intraoperative identification and description of intimal dissection in the superficial temporal artery.
• Description of a novel suturing technique for the intimal flap.

Main Results:

• Three patients presented with intimal dissection of the superficial temporal artery during STA-MCA anastomosis.
• This finding was previously unappreciated in surgical literature.
• The described suturing technique successfully managed the intimal flap, ensuring successful anastomosis.

Conclusions:

• Intimal dissection of the superficial temporal artery is a potential cause of technical failure in STA-MCA bypass.
• Awareness of this anatomical variant is crucial for neurosurgeons.
• A specific suturing technique can effectively address intimal flaps, improving surgical success rates.