Introduction
The aim of this study was to present the mid-term results of patients who had
undergone a carotid-subclavian bypass surgery after a thoracic endovascular
aortic repair (TEVAR) stent-graft implantation with proximal landing at zone
2 of the aorta.
Methods
A total of 66 patients had undergone TEVAR and carotid-subclavian bypass
between January 2015 and May 2020 at our clinic. Five of these patients were
lost to follow-up, so 61 patients were included in this retrospective study.
At follow-up visits, patency of the carotid-subclavian bypass grafts was
evaluated with physical examination and radiological imaging.
Results
The mean follow-up time was 15.11±12.29 months (ranging from 1 to 56
months). There were 3 (4.91%) in-hospital deaths of patients admitted with
bilateral lower limb and visceral malperfusion. There were also 2 (3.27%)
deaths unrelated to the procedure. Carotid-subclavian graft occlusion
occurred in 3 (4.91%) patients. The occlusion was detected with radiological
imaging within a period of 12 to 24 months. The graft patency rate was 100%
in the first 12 months. The mean graft patency time (survival) was
52.56±2.10 months.
Conclusion
Periprocedural carotid-subclavian bypass surgery with synthetic grafts is a
recommended procedure with high patency and acceptably low mortality and
morbidity rates in TEVAR.