Stopped: Unable to enroll a sufficient number of patients
The infection rate of thoracic endovascular aortic repair (TEVAR) is unknown due to a lack of epidemiological data. The rate currently available comes from researches conducted decades ago, when open surgery was the standard of care. Because of the potentially fatal consequences of a stent graft infection in the thoracic aorta, the investigators tend to prescribe antibiotic prophylaxis for at least three days. In this study, the investigators are going to collect data on patients receiving TEVAR in the past five years and provide the following information: a. the infection rate (MAGIC classification), b. the rate of fever, c. the results of the lab tests, such as the WBC count and C-reaction protein. d. risk factors associated with infection and fever.
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Infection rate after TEVAR
Timeframe: during hospitalization (up to post-operation day 14)
Infection rate at one month after TEVAR
Timeframe: One month after TEVAR
Infection rate at six months after TEVAR
Timeframe: Six months after TEVAR
Infection rate at one year after TEVAR
Timeframe: One year after TEVAR