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J Perinatol ; 34(8): 620-3, 2014 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-24722649

RESUMO

OBJECTIVE: Apnea of prematurity is a common complication in premature newborns and caffeine is a widespread medication used to treat this complication. Caffeine may have adverse effects on the cardiovascular and central nervous system, yet its effects on the autonomic nervous system modulation of heart rate have not been studied in premature newborns, which was the objective of our study. STUDY DESIGN: We prospectively studied 21 premature newborns who were treated with caffeine. We analyzed heart rate variability by power spectral density and by dynamic nonlinear analyses methods. RESULT: There were no changes in heart rate, blood pressure or the autonomic nervous system tone following administration of caffeine, nor were the nonlinear dynamical properties of the system altered by caffeine. CONCLUSION: Caffeine does not have detrimental effects on heart rate variability, heart rate or blood pressure in conventional doses given to premature newborns.


Assuntos
Apneia/fisiopatologia , Cafeína/farmacologia , Estimulantes do Sistema Nervoso Central/farmacologia , Frequência Cardíaca/efeitos dos fármacos , Doenças do Prematuro/fisiopatologia , Apneia/tratamento farmacológico , Cafeína/uso terapêutico , Estimulantes do Sistema Nervoso Central/uso terapêutico , Feminino , Humanos , Recém-Nascido , Recém-Nascido Prematuro , Doenças do Prematuro/tratamento farmacológico , Masculino , Estudos Prospectivos
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