Abstract
Purpose
Pulse wave velocity (PWV), which measures vascular stiffness, is a powerful predictor of cardiovascular event. Treatment of aneurysms with endovascular prosthesis has been reported to increase PWV. The purpose of this study was to evaluate whether an endoskeleton stent graft design has less effect on PWV than the exoskeleton stent graft design.
Methods
Between July 2008 and September 2016, 74 patients underwent endovascular treatment of aortic arch aneurysm in our institution. PWV before and after surgery were compared between those who underwent treatment with Najuta, an endoskeleton stent graft (n = 51), and those treated with other commercially available exoskeleton stent grafts (n = 23).
Results
Preoperative PWV (endoskeleton: 2004 ± 379.2 cm/s vs. exoskeleton: 2083 ± 454.5 cm/s, p = 0.47) was similar between the two groups. Factors that were associated with preoperative PWV were age (r = 0.37, 95% CI 0.15–0.56, p = 0.002) and mean arterial pressure (r = 0.53, 95% CI 0.34–0.68, p < 0.001). There was a significant increase in PWV in patients treated by exoskeleton stent grafts (before: 2083 ± 454.5 cm/s vs. after: 2305 ± 479.7 cm/s, p = 0.023) while endoskeleton stent graft showed no change in PWV (before: 2003 ± 379.2 vs. after: 2010 ± 521.1, p = 0.56). In a multivariate analysis, mean arterial pressure (coef 17.5, 95% CI 6.48–28.59, p = 0.002) and exoskeleton stent graft (coef 359.4, 95% CI 89.36–629.43, p = 0.010) were independently associated with PWV after surgery.
Conclusions
Physiological changes after endovascular treatment should be considered including effect on vascular stiffness. Endoskeleton stent graft may provide aneurysm repair with minimum effect in PWV after surgery.
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Hori, D., Akiyoshi, K., Yuri, K. et al. Effect of endoskeleton stent graft design on pulse wave velocity in patients undergoing endovascular repair of the aortic arch. Gen Thorac Cardiovasc Surg 65, 506–511 (2017). https://doi.org/10.1007/s11748-017-0787-8
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DOI: https://doi.org/10.1007/s11748-017-0787-8