2·They are usually asymptomatic when confined to the heart but may produce complications due to embolism to the cerebral or systemic circulation.
血栓局限于心脏时一般并无症状,但栓子脱落到脑血管或体循环将会引起并发症。
3·As it degrades over the course of months, the tube "gives the space for cells to grow and regenerate to extend systemic circulation, " said Alejandro Nieponice, who also worked on the study.
在这个研究中工作的Alejandro Nieponic说,随着数月的病程试管可降解,它可给细胞生长的空间,再生可以伸展到体循环。