And since the surface of the artificial heart is not as smooth as that of the human heart, clots and thrombosis more easily form, leading to strokes.
再加上人工心臟表面畢竟不如人心光滑，容易出現血塊、形成血栓，若血栓發生在腦中，則會引起中風，因此病人須服用抗凝血藥。