PMC6041203_01
a, b: Transabdominal ultrasonographic view of a chitosan-covered gauze tamponade in utero (a) and uterus after removal of chitosan-covered gauze tamponade (b).. (a): The uterus 48 h after delivery is partially filled with clotted blood in the fundal part of the uterine cavity (*). The chitosan-covered gauze tamponade presents as a hyperechogenic structure with dorsal acoustic shadow in the lower uterine segment. (b): After removal of chitosan-covered gauze tamponade small amount of clotted blood can be seen in the uterine cavity.
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The chitosan-covered gauze was removed after 48 h (Fig. 1).