Sequential cardiopulmonary variables of infants and children in septic shock

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Abstract
Sequential cardiopulmonary variables were analyzed in 32 infants and children with septic shock. Variables were staged by a system based on therapeutic efforts to control blood pressure. There were 14 survivors and 18 nonsurvivors. Systemic circulation variables (MAP, cardiac index [CI], systemic vascular resistance index [SVRI], wedge pressure [WP], left cardiac work index [LCWI]) and pulmonary circulation variables (mean pulmonary artery pressure [MPAP], pulmonary vascular resistance index [PVRI], CVP, right cardiac work index [RCWI]) were similar in survivors and nonsurvivors. Pulmonary variables (intrapulmonary shunt [Qsp/Qt], fraction of inspired oxygen [FiO2), Pao2, Paco2) revealed significantly more dysfunction in nonsurvivors than survivors during the postresuscitation (PR) and middle (M) shock stages. Even though oxygen delivery was equivalent in survivors and nonsurvivors, nonsurvivors demonstrated decreased oxygen utilization variables (oxygen consumption [Vo2], arteriovenous oxygen content difference [C(a-v)o2], O2 extraction index, core temperature) during the resuscitation (RS) and PR stages.

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