(Microsoft PowerPoint ...

Prop I - 1. Salzburger Präanästhesieforum,
11.-12. Dez. 2009
Preoperative history and
coagulation screening
in children undergoing tonsillectomy
Burk. Pediatrics 1992;89:691
...the large number of false positive laboratory tests...
...raises doubts about the overall value
of routine screening.
The utility
of preoperative hemostatic assessment
in adenotonsillectomy
Zwack. Int J Pediatr Otorhinolaryngol 1997;39
Preoperative PT/PTT did not predict intraoperative or
postoperative bleeding.
Laboratory screening should be used selectively.
Routine preoperative PT/PTT is not recommended and does not
appear to be cost-effective.
Sibylle Kozek-Langenecker, Präoperative
Gerinnungsabklärung 18
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