[Anatomical relations in innominate artery compression syndrome: retrospective case-control study]
D Crehuet Gramatyka1, C Gutiérrez San Román1, R Fonseca Martín1
1Hospital Universitario y Politécnico La Fe. Valencia.
Summary
This study found no anatomical differences in brachiocephalic trunk (BT) origin between patients with Innominate Artery Compressing Syndrome (IACS) and controls, questioning the theory that a leftward BT origin causes IACS.
Area of Science:
- Cardiovascular anatomy
- Thoracic imaging
- Medical diagnostics
Background:
- Innominate Artery Compressing Syndrome (IACS) is a condition affecting the brachiocephalic trunk (BT).
- The proposed etiology of IACS involves the anatomical position of the BT relative to the trachea.
- Understanding these spatial relationships is crucial for diagnosis and treatment.
Purpose of the Study:
- To compare the anatomical positioning of the brachiocephalic trunk (BT) in relation to the trachea, sternum, and spine.
- To investigate potential anatomical differences in patients with Innominate Artery Compressing Syndrome (IACS) compared to healthy controls.
- To evaluate the role of BT origin in the pathogenesis of IACS.
Main Methods:
- A retrospective case-control study was conducted.
- Vascular computerized tomography (CT) scans of IACS patients and controls were analyzed.
- Key anatomical measurements included BT origin, tracheal dimensions, and thoracic kyphosis angle.
Main Results:
- No statistically significant differences were found in BT origin position relative to the trachea between IACS patients and controls (p=0.72).
- Tracheal diameter ratios and sternum-trachea/sternum-vertebra relationships also showed no significant differences (p=0.75).
- Thoracic kyphosis angles were comparable between the groups (p=0.45).
Conclusions:
- The study found no anatomical basis to support the theory that a more leftward origin of the brachiocephalic trunk causes Innominate Artery Compressing Syndrome.
- The BT origin was consistently on the left side in all evaluated patients, irrespective of IACS diagnosis.
- Further research may be needed to elucidate the precise mechanisms underlying IACS.
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