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Factors associated with success following transcervical innominate artery suspension
Douglas Clayton von Allmen1, Cherie Torres-Silva2, Michael J Rutter1
1Cincinnati Children's Hospital Medical Center, Department of Otolaryngology, Cincinnati, OH, USA; University of Cincinnati College of Medicine, Department of Otolaryngology, Cincinnati, OH, USA.
Objective:
Aortopexy including innominate artery suspension is a well-established treatment of anterior vascular compression and associated tracheomalacia. We report the results of our case series of cervical approach to innominate artery suspension and hypothesize that increased distance from the innominate to the sternum is predictive of superior symptomatic outcome.
Study Design:
Retrospective Case Series.
Methods:
All cases of cervical innominate artery suspension at our institution over the last 10 years were reviewed. CT scans of the neck and chest were reviewed to obtain anatomical measurements including anterior-posterior thoracic outlet distance, thymic thickness, and sternum-innominate artery distance. Measurements were compared with surgical outcomes as verified by follow up bronchoscopy and clinical course to determine factors predictive of success.
Results:
Ten cases of cervical innominate artery suspension were performed by the otolaryngology service at our institution over the last 10 years. Six patients had improvement in their symptoms. The average sternum-innominate artery distance (SID) was larger (14.4 mm (95% CI 9.1-19.7)) in patients who had improvement in clinical symptoms following innominate suspension compared to those that did not improve (6.3 mm (95% CI 2.5-10.1)) (p value = 0.02). Similarly, the anterior-posterior distance of the thoracic outlet was larger (34.9 mm (95% CI 27.4-42.4)) in patients who had improvement post-op compared to those that did not improve (22.6 mm (95% CI 18.2-27.2) (p value = 0.01). Two patients required spine surgery to achieve improvement in their symptoms.
Conclusion:
Cervical innominate artery suspension is successful in carefully selected patients. More space in the thoracic outlet and larger distance from the innominate artery to the sternum is associated with symptomatic improvement.
