Management of complex thoracic aortic diseases with aberrant right subclavian artery

Abstract

Background

We retrospectively evaluated early and intermediate outcomes of hybrid repair of complex thoracic aortic diseases involving an aberrant right subclavian artery. This paper aims to report features and available treatment options for this rare, hard-to-diagnose, and manage, aorta-related vascular condition.

Methods

Between January 2012 and May 2019, 13 patients (mean age, 60.1 ± 9.3 years; nine men) underwent complex thoracic aorta repair surgery. Six patients had a thoracic aortic aneurysm, two had type A aortic dissection, and five had complicated type B aortic dissection. Hybrid repair strategies included de-branching in combination with single-stage aortic arch replacement with the frozen elephant trunk technique performed in four patients, thoracic endovascular aortic repair in six patients, and 2-stage hybrid repair consisting of a total arch replacement with a conventional/frozen elephant trunk (first stage) and subsequent endovascular repair (second stage) in three patients.

Results

One early death occurred: a patient with acute type A aortic dissection, who underwent Bentall procedure and aortic arch replacement with the frozen elephant trunk technique, died in-hospital of multiorgan failure 41 days after the procedure. The remaining 12 patients were discharged in stable condition. The median follow-up duration was 36 months (2–71 months). Two late mortalities occurred: a patient with residual type A aortic dissection, who underwent arch replacement with the frozen elephant trunk technique, died of intracranial hemorrhage 3 months after the surgery. And 72 years old female patient died of acute exacerbation of chronic obstructive pulmonary disease 2 months after the surgery.

Conclusion

Our study indicates that various hybrid strategies can be used to treat complex thoracic aortic diseases involving an aberrant right subclavian artery. The approach of choice depends on the features of disease pathology, the aortic segments involved, and the operating surgeon's experience.

Keywords

Subclavian artery aortic dissection aortic aneurysm aortic arch syndromes endovascular procedures

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