OWN - Quintessenz Verlags-GmbH CI - Copyright Quintessenz Verlags-GmbH OCI - Copyright Quintessenz Verlags-GmbH TA - Int Poster J Dent Oral Med JT - International Poster Journal of Dentistry and Oral Medicine IS - 1612-7749 (Electronic) IP - 4 VI - 1 PST - ppublish DP - 1999 PG - 0-0 LA - en TI - Transfusionshäufigkeiten bei Eingriffen in der MKG-Chirurgie - Eine statistische Analyse FAU - Feifel, Hartmut AU - Feifel H FAU - Simon, Sophie AU - Simon S FAU - Reineke, Thorsten AU - Reineke T FAU - Riediger, Dieter AU - Riediger D CN - OT - transfusion frequency rates OT - oral and maxillofacial surgery AB - Transfusion frequency rates were determined in a patient population of 229 having undergone major oral and maxillofacial surgery as follows: tumor surgery (TU, n=54), orthognathic surgery (OR, n=41), preprosthetic surgery (PR, n=7), reconstructive surgery (RE, n=49) and traumatology (TR, n=78). Duration of surgery was in the range 2 - 20 hours. Autohaemotherapy was of particular significance for orthognathic operations. Statistical evaluation was via variance analysis and the chi-squared test (significance level alpha=0,05). The resulting transfusion frequency rates were as follows: TU 55.6%, OR 31.7%, PR 14.3%, RE 12.2% and TR 5.1%. Transfusions were significantly more often needed in the following operations: TU>OR/RE/TR and OR>TR. The number of transfusions was found to increase as operation time increased (0- < 2h: 0%, 2- AID - 856508