2.1 General information
The clinical data of 6 consecutive patients who received surgical
treatment at Shanghai Deda Hospital from September 2019 to June 2021 due
to stent infection after TEVAR were retrospectively analyzed (Table 1).
There were 6 males, aged (47.7±8.2) years old (range: 35-56 years old).
TEVAR was performed in 2 cases due to descending aortic aneurysm and 4
cases due to Stanford B aortic dissection. Three patients exceeded the
abdominal aorta below the diaphragm level during TEVAR. Two patients
underwent the “chimney” technique to implant the stent in the left
subclavian artery during TEVAR operation.
All patients had symptoms of recurrent fever. There were 4 cases of
positive blood culture before the second operation, including 1 case of
Staphylococcus epidermidis, 1 case of Staphylococcus aureus, 1 case of
Pseudomonas aeruginosa, 1 case of Stenotrophomonas maltophilia; 2 cases
of second time before operation The blood culture was negative. Before
the operation, the patient was diagnosed with esophageal fistula through
multi-slice spiral CT angiography (Figure-1a), gastroscopy (Figure-1b),
and upper gastrointestinal angiography (Figure-1c).