Document Detail

The influence of artificial ventilation on heart rate variability in very preterm infants.
MedLine Citation:
PMID:  7700727     Owner:  NLM     Status:  MEDLINE    
To study the influence of artificial ventilation rate on neonatal heart rate variability (HRV), ECG and respiratory impedance curves were recorded four times a day in 20 preterm infants (< 33 wk) during the first 3 d after birth while the infants were ventilated at a wide range of ventilator rates. The contents of selected frequency bands within the R-R interval power spectrum were calculated for 3-min periods. Respiratory distress syndrome severity was assessed at each measurement. Respiratory sinus arrhythmia (RSA) induced by the ventilator appeared to mimic spontaneous RSA. As in spontaneous respiration, the amount of RSA (power in a frequency band around the respiratory rate) increases as the ventilation rate decreases. This phenomenon is most probably due to entrainment with baroreflex-related fluctuations in the heart rate. Although the artificial ventilation rate influences RSA and thus high-frequency HRV, an increase in respiratory distress syndrome severity results in a decrease in low-frequency HRV. Thus, the attenuation of low-frequency HRV by respiratory distress syndrome is not likely to be due to artificial ventilation.
C M van Ravenswaaij-Arts; J C Hopman; L A Kollée; G B Stoelinga; H P van Geijn
Related Documents :
9950307 - Use of permissive hypercapnia in the ventilation of infants with respiratory syncytial ...
23775247 - Infant obesity and severe obesity growth patterns in the first two years of life.
23587297 - Determining an anthropometric surrogate measure for identifying low birth weight babies...
23255857 - High incidence of rickets in extremely low birth weight infants with severe parenteral ...
1728547 - High folate intakes related to zinc status in preterm infants.
18266827 - Fractional exhaled nitric oxide in infants during cow's milk food challenge.
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Pediatric research     Volume:  37     ISSN:  0031-3998     ISO Abbreviation:  Pediatr. Res.     Publication Date:  1995 Jan 
Date Detail:
Created Date:  1995-04-28     Completed Date:  1995-04-28     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0100714     Medline TA:  Pediatr Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  124-30     Citation Subset:  IM    
Department of Paediatrics, University Hospital, Nijmegen, The Netherlands.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Analysis of Variance
Arrhythmia, Sinus / physiopathology
Heart Rate / physiology*
Infant, Newborn
Infant, Premature / physiology*
Respiration, Artificial*
Respiratory Distress Syndrome, Newborn / physiopathology,  therapy
Respiratory Mechanics / physiology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

Previous Document:  Hemodynamics and ventricular function in the day-12 rat embryo: basic characteristics and the respon...
Next Document:  Expression of c-fos, tyrosine hydroxylase, and neuropeptide mRNA in the rat brain around birth: effe...