• G Pfanner, J Koscielny, T Pernerstorfer, M Gütl, P Perger, D Fries, N Hofmann, P Innerhofer, W Kneifl, L Neuner, H Schöchl, S A Kozek-Langenecker, and Austrian Society for Anaesthesia, Resuscitation and Intensive Care.
• Abteilung für Anästhesie und Intensivmedizin, Landeskrankenhaus Feldkirch, Feldkirch.
• Anaesthesist. 2007 Jun 1;56(6):604-11.

AbstractUnexpected bleeding in the perioperative period is largely caused by impaired inherited or drug-induced primary haemostasis. Standard tests for plasma coagulation are predominantly employed to gauge the risk of bleeding. In accordance with several reports the subcommittee for perioperative coagulation (AGPG) of the Austrian Society of Anaesthesia, Resuscitation and Intensive Care (OGARI) recommends the use of a standardised questionnaire to detect an increased risk of bleeding. Accordingly, healthy patients of the American Society of Anesthesiologists (ASA) grades I and II without any suspicion of impaired haemostasis who are scheduled for procedures without expected transfusion requirements, need no standard tests for coagulation. In all other patients (including patients taking medication affecting coagulation, or patients who are unable to provide adequate information) platelet count, platelet function, aPTT, PT, and fibrinogen levels should be assessed.

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