J Clin Monit Comput - Cardiac parameters in children recovered from acute illness as measured by electrical cardiometry and comparisons to the literature.


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Electrical cardiometry (EC) is a non-invasive cardiac output method that can assess cardiac index (CI) and stroke index (SI) but there are no reference values for children per se. The primary aim of this study was to develop reference values for clinical application. The secondary aim was to compare the EC measurements to published values. We performed a prospective observational study in patients (<21 years of age) without structural heart disease who had recovered from an acute illness. EC recordings in children that had normal heart rate and mean arterial blood pressure at discharge were eligible for analysis. The relationship of CI or SI and age in children was performed by regression analysis. Similar analysis was performed comparing measurements by EC to cardiac parameters values compiled from reference sources to assess bias in EC. Eighty-three children (2 weeks-21 years of age) were studied. There was a significant curvilinear relationship between CI or SI and age by EC (F-test, p < 0.05). Regression curves of cardiac parameters reported in the literature using 6 Fick's method, thermodilution, echocardiography and cardiac MRI were the same or higher than (0-19.6 %) values obtained with EC, with higher values being statistically significant (p < 0.05 all). There is a curvilinear relationship of CI or SI and age by EC in normal children. Cardiac parameters reported in the literature using alternative methods are different from those obtained with EC but are within acceptable ranges, with EC biased to underestimate CI. Adjustment of target value is required for EC goal-directed therapies.

Resumo Limpo

electr cardiometri ec noninvas cardiac output method can assess cardiac index ci stroke index si refer valu children per se primari aim studi develop refer valu clinic applic secondari aim compar ec measur publish valu perform prospect observ studi patient year age without structur heart diseas recov acut ill ec record children normal heart rate mean arteri blood pressur discharg elig analysi relationship ci si age children perform regress analysi similar analysi perform compar measur ec cardiac paramet valu compil refer sourc assess bias ec eightythre children week year age studi signific curvilinear relationship ci si age ec ftest p regress curv cardiac paramet report literatur use fick method thermodilut echocardiographi cardiac mri higher valu obtain ec higher valu statist signific p curvilinear relationship ci si age ec normal children cardiac paramet report literatur use altern method differ obtain ec within accept rang ec bias underestim ci adjust target valu requir ec goaldirect therapi

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