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Aberrant internal carotid artery in the middle ear
The Annals of Otology, Rhinology, and Laryngology
|January 1, 1981
Summary
Aberrant internal carotid artery in the middle ear is a rare condition. Myringotomy can cause severe bleeding in patients with this vascular anomaly, necessitating surgical intervention.
Area of Science:
- Otolaryngology
- Vascular Surgery
- Anatomy
Background:
- Aberrant internal carotid artery (AICA) in the middle ear is an uncommon congenital anomaly.
- This vascular anomaly can lead to various middle ear symptoms.
- Understanding its embryological basis is crucial for diagnosis and management.
Observation:
- A patient with AICA in the middle ear experienced severe hemorrhage during a myringotomy procedure.
- The hemorrhage required immediate arterial packing and subsequent ligation.
- This highlights the potential risks associated with middle ear surgery in the presence of this anomaly.
Findings:
- The AICA anomaly may result from the artery protruding through a dehiscent bony canal.
- Alternatively, it could be caused by persistent stapedial artery traction on the developing carotid artery.
- Diagnosis is confirmed via angiography.
Implications:
- Surgical intervention, including arterial ligation, may be necessary for managing complications.
- Awareness of this anomaly is vital for otolaryngologists and surgeons to prevent intraoperative hemorrhage.
- Accurate pre-operative diagnosis through angiography is essential for safe surgical planning.