Introduction: Since the approval, the thoracic endovascular aortic repair (TEVAR) is widely used for the repair of thoracic aortic aneurysm. However, the long-term mortality and re-intervention rates compared to open surgical repair (OSR) are unclear. We aimed to compare the effectiveness of TEVAR with OSR specifically for thoracic aortic aneurysms.
Evidence Acquisition: We conducted a comprehensive search in MEDLINE, PubMed, EMBASE, CINAHL, PROSPERO, Centre for Reviews and Dissemination, and the Cochrane Library up to November 2020. The main outcomes were early mortality, mid-to-long-term survival, and re-intervention. The quality of the evidence was assessed using the GRADE methodology. All analyses were performed using RevMan with the random effect model and Comprehensive Meta-Analysis software.
Evidence Synthesis: One systematic review and 15 individual studies were included. Pooled analysis showed that 30-day mortality, stroke, renal failure, and pulmonary complications were significantly lower in TEVAR versus open surgery. The pooled rate of re-intervention significantly favored the OSR. The long-term survival and mortality favored TEVAR and OSR in one and two studies, respectively, but was non-significant in seven analyzes.
Conclusions: Early clinical outcomes including the 30-day mortality, stroke, renal failure, and pulmonary complications significantly favored the TEVAR. However, the mid-to-long-term re-intervention rate favored the OSR and long-term survival was inconsistent among the studies. The quality of evidence was very low. More studies with longer follow-ups are needed. The use of TEVAR should be decided by taking into account other factors including patient characteristics and preferences, cost, and surgeon expertise.
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