[Cardiac index, oxygen and serum lactate consumption in infants with hypovolemic and septic shock]. / Indice cardíaco, consumo de oxígeno y lactato sérico en lactantes con choque hipovolémico y séptico.

Determination was made of cardiac output (using the stain dilution technique), gases in blood and serum lactate levels in eight infants with hypovolemic shock and sixteen with septic shock. The data were carried to indexes (values per square meter of body surface). In children with hypovolemic shock the cardiac index was 1.88 +/- 0.031/min/m,2 while in septic patients it was 4.02 +/- 1.011/min/m2. The peripheral resistances were 3,079 din/min/cm.5 in hypovolemic cases and 907 din/min in the septic. In both groups serum lactante levels rised close to 4 mM 61. Oxigen consumption was found low in hypovolemic patients and slightly high in the septic. It is concluded that our data are similar to those reported in similar studies in adults and hypodynamic shock is shown in hypovolemic patients, while hyperdynamic shock appears in septic cases.