[1] Regio Kliniken, Anasthesiol, Fahltskamp 74, D-25421 Pinneberg, Germany
[2] Univ Med Rostock, Chirurg Klin & Poliklin, Abt Allgemeine Thorax Gefass & Transplantat Chiru, Rostock, Germany
[3] Univ Klinikum Schleswig Holstein, Klin Anasthesiol & Operat Intens Med, Campus Kiel, Kiel, Germany
[4] Univ Klinikum Gottingen, Klin Anasthesiol, Gottingen, Germany
[5] Asklepios Klin St Georg, Klin Anasthesiol Intens Med Notfallmedizin & Schm, Hamburg, Germany
[6] Univ Klinikum Marburg, Klin Anasthesie & Intens Med, Marburg, Germany