RA behaved as a protector factor for mortality 2.1% cf 3.1% in the CORTRA study.13 Other CCT, cohort and descriptive studies have failed in demonstrating differences between the two types of anaesthesia regarding mortality.14-16
3,1%. Otros estudios de tipo estudio clínico controlado, de cohorte y descriptivos, fallaron en demostrar diferencias entre los dos tipos de anestesia respecto a la mortalidad 14-16.