R Fantin1, C Brunner2, G Putz3. 1. Department of Anesthesiology and Intensive Care, Innsbruck Medical University, Innsbruck, Austria. Electronic address: raffaella.fantin@tirol-kliniken.at. 2. Department of Gynecology and Obstetrics, Innsbruck Medical University, Innsbruck, Austria. 3. Department of Anesthesiology and Intensive Care, Innsbruck Medical University, Innsbruck, Austria.