It's easy, painless and requires no sedation.

这简单，无痛，而且不需要镇静。

youdao

Open biopsies are no more accurate but are far more complicated, requiring sedation or general anesthesia, incisions, stitches, often scars, and a much higher risk of infection.

相比，手术活检并不会更准确反而会更加复杂，它需要进行镇静或是全身麻醉、开放性切口、缝合、遗留疤痕，还有冒较高的感染风险。

youdao

If little or no intraoperative sedation is required, little or none of the "hangover" effect will be present throughout the postoperative period.

如果术中镇静药需要非常少或根本不需要，术后将无或有很轻微的宿醉感。

youdao