Report in Brief
- What is the clinical effectiveness of endovascular aortic repair (EVAR) compared with traditional surgical repair for abdominal aortic aneurysm?
- What is the cost-effectiveness of endovascular aortic repair (EVAR) compared with traditional surgical repair for abdominal aortic aneurysm?
In adult patients, catheter non-patency or occlusion appeared to be numerically higher with saline compared to heparin in many of the studies however the differences were not statistically significant in most cases. It was unclear whether these differences were clinically meaningful. In the light of this, it remains unclear as to whether saline or heparin is better for maintaining patency. In pediatric patients, catheter occlusion appeared to be higher with saline than with heparin however the differences were statistically significant in two out of three studies and findings need to be interpreted with caution. In general, adverse effects associated with saline and heparin use were sparsely reported. Moreover, there were some inconsistencies in the findings between studies and definitive conclusions were not possible.