Predicting fluid responsiveness in ICU patients: comparison of different parameters and cutoff limits using pulse power analysis assessment. Issue 1 (December 2015) - Barrasa, H; Maynar, J; Castaño, S; Poveda, Y; Domelo, P; Tejero, A; Baziskueta, G; Quintano, A; Miret, B; Iturbe, M; Cabañes, S; Fonseca, F