Zha B, Qiu P, Xie W, et al. - Researchers explored descending aortic morphological changes induced by pathological alterations in acute and chronic Type B aortic dissection (TBAD) and morphological remodeling following thoracic endovascular aortic repair (TEVAR). This analysis was performed on 86 TBAD patients who were undergoing TEVAR from February 2012 to January 2016 and were classified into an acute group (n = 63) and a chronic group (n = 23). The chronic group exhibited significantly higher taper ratio, oversizing ratio and tortuosity index compared with the acute group before TEVAR. The TEVAR technical success rate was estimated to be 100%. Overall, findings revealed the safety as well as the efficacy of TEVAR for acute and chronic TBAD. An adverse preoperative descending aorta morphology was caused by chronic TBAD vs acute TBAD. The possible feasibility of pathology-specific devices was suggested as a treatment option for endovascular repair of chronic TBAD. In order to draw definitive inferences, there is a requirement of a larger series of cases with longer follow-up.