1. Medical-Surgical ICU, Dupuytren Teaching Hospital, 87000 Limoges, France
2. CIC-P 0801, Dupuytren Teaching Hospital, 87000 Limoges, France
3. University of Limoges, 87000 Limoges, France
4. Service de Réanimation Polyvalente, CHU Dupuytren, 2 Avenue Martin Luther King, 87042 Limoges Cedex, France