[Topic usage of bismuth subgallate as a hemostatic in tonsillectomy].

The most feared complication for the ENT specialists in the adenotonsillectomy is the immediate or mediate haemorrhage after surgery. We revise the literature and contrast experiencies with other colleage. We have found an astringent substance (bismuth subgallate), which helps us give an exact intraoperative diagnosis of the bleeding spot by the colour contrast it shows, and serves us also as a hemostatic, since it activates the XII factor in coagulation. We revise this product regarding its origen, prentation, applications and toxic effects.