In repairs for type B ADs, the chimney technique provides a minimally invasive way of preserving flow to the arch branches combined with a favourable mid-term outcome. The bare stents seemed to be related to a higher probability of the immediate type I endoleaks. A balloon-expandable stent should be regarded as the first choice due to its greater radial strength.
Our study demonstrates that it is possible to reconstruct aortic arch with the new branched stent grafts. The advantage of this device is that it is modular, more adaptable and surgical bypass could be possibly avoided.
The programmed deathligand 1 (PD-L1) expression on tumor cells has emerged as a prognostic marker after surgical resection in various tumors including NSCLC. This study investigated the predictive value of PD-L1 expression on the duration of treatment and the emergence of T790M mutation in patients treated with EGFR-TKIs. Method: We retrospectively enrolled 109 patients with advanced NSCLC who had been treated with EGFR-TKIs as first-line systemic treatment at
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