Fig. 1From: Keeping the heart empty and beating: an alternative technique to preserve hypertrophied hearts during valvular surgeryComparison of EF between the NHSP hearts and NNSP hearts. Averages of EF measurements were lower during NHSP than during NNSP. Abbreviations: NHSP, normothermic hyperkalemic simultaneous blood perfusion; NNSP, normothermic normokalemic simultaneous blood perfusion; EF, ejection fractionBack to article page