Core to toe temperature gradient during early post cardiac surgery period does not correlate with cardiac output in pediatric population.
Journal Title: Journal Of Pediatric Critical Care - Year 2017, Vol 4, Issue 2
Abstract
Hypothesis: Core to toe temperature gradient measured during early post-operative phase will not correlate with oxygen extraction ratio, a surrogate marker for Cardiac Output. Materials and Method: This is a prospective observational study in pediatric cardiac intensive care unit, at Hamad General Hospital, Doha Qatar. Patients who underwent biventricular repair on cardio-pulmonary bypass were included. At hour 1, 4, 8 and 12 post surgery, core to toe temperature gradient was recorded. At similar time intervals , Oxygen extraction ratio (OER) was calculated using formula SaO2 – SvO2/ SaO2 x 100, where SaO2 is systemic arterial saturations and SvO2 is mixed venous (central) saturations. Results There were total of 99 patients enrolled in the study . The median age was 10.93 months (range 1.93 - 176.7 months). Male: Female ratio was 1.1:1. At each of 1,4, 8 and 12 h ours, Pearson's pairwise correlation coefficient (r) was calculated between oxygen extraction ratio and core - toe temperature gradient. The associated confidence interval, coefficient of determination (r 2 ) and p - value are: [ 1 - hour: r =0.0565 ( - 0.1512 to 0.2 595), r 2 =0.0032 p=0.5 [4 - hour: r = 0.2094 (0.0024 to 0.3992), r 2 =0.0439 , p=0.047], [8 - hour: r = 0.2113 (0.0079 to 0.3979), r 2 =0.0446, p= 0.042], [12 hour: r =0.2776 (0.0672 to 0.4643), r 2 =0.0771, p = 0.010]. There was no correlation between the cor e to toe temperature gradient and oxygen extraction ratio at the first hour mark and a weak correlation was observed at the 4 hour, 8 hour and 12 hour mark. Conclusions The core to toe temperature gradient does not correlate with the oxygen extraction ratio (surrogate marker of cardiac output) during the early post-operative phase in pediatric patients following cardiac surgery under cardiopulmonary bypass. There are multiple factors effecting this relationship and need further studies.
Authors and Affiliations
Muhammed Riyas K Rahmath, Jiju John, William Greer, Jai P. Udassi, Akhlaque Nabi Bhat
Keywords
Related Articles
- EP ID EP335548
- DOI 10.21304/2017.0402.00173
- Views 128
- Downloads 0
Clinical Profile, Intensive Care Needs And Predictors Of Outcome In Children With Drowning: A Developing Country Perspective
.
Ultrasound in Pediatric Intensive Care
.
A retrospective study on clinical profile and outcome of respiratory cause of Ventilation in children with age group between 1 month To 5 Years in Pediatric intensive care unit of a tertiary centre hospital in Karnataka, India
Introduction: mechanical ventilation has become frequently used life supportive management in Pediatric Intensive Care Units (PICU) Objectives To determine the characteristics, common cause for ventilation, Ventilation...
Golden Hour Management of Pediatric Polytrauma in India- Emergency Department Resuscitation
Trauma is one of the most neglected preventable diseases in India, with the 2014 National Crime Records Bureau report, detailing 63% rise in injury deaths in the past decade. Despite the worrying figures, this preventabl...
Urinary biomarkers as a predictor of outcome in pediatric sepsis
To determine the prognostic ability of urinary biomarkers in paediatric sepsis with or without AKI.