Capillary refill time in term neonates: bedside assessment

Capillary refill time in term neonates: bedside assessment

Capillary refill time (CRT) is yet to be established as a specific clinical sign of peripheral circulation in neonates. This study was conducted to assess the influence of four body sites used for measurement, interobserver variability, sex, birth weight, age at assessment and room temperature on CR...

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Bibliographic Details
Published in:Indian journal of pediatrics Vol. 68; no. 7; pp. 613 - 615
Main Authors: RAICHUR, Devaraj V, ARALIHOND, Ashok P, KASTURI, A. V, PATIL, Devaraj H
Format: Conference Proceeding Journal Article
Language:English
Published: Heidelberg Springer 01-07-2001
Subjects:
Analysis of Variance
Biological and medical sciences
Capillaries - physiology
Cardiovascular system
Female
Foot - blood supply
Forehead - blood supply
Hand - blood supply
Humans
Infant, Newborn - physiology
Investigative techniques, diagnostic techniques (general aspects)
Male
Medical sciences
Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques
Probability
Reference Values
Regional Blood Flow - physiology
Sampling Studies
Sensitivity and Specificity
Tropical medicine
Asia
India
Human
Exploration
Newborn
Hemodynamics
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Summary:Capillary refill time (CRT) is yet to be established as a specific clinical sign of peripheral circulation in neonates. This study was conducted to assess the influence of four body sites used for measurement, interobserver variability, sex, birth weight, age at assessment and room temperature on CRT recorded in healthy term neonates, at bedside. Two observers measured CRT in four different body sites (forehead, chest, palm and heel) of each of 155 healthy term neonates. Significant differences occurred between the mean CRT recorded by the two observers in forehead (mean +/- SD: 2.62 +/- 0.8 s and 1.88 +/- 0.57 s; p < 0.001), palm (2.99 +/- 0.61 s and 2.75 +/- 1.12 s; p < 0.05) and heel (3.08 +/- 0.79 s and 4.24 +/- 1.84 s; p < 0.001). Only CRT in chest (2.7 +/- 0.42 s and 2.62 +/- 0.74 s) produced no significant differences in the means with a statistically significant and clinically fair, but not strong, interobserver agreement (r = 0.4; p < 0.001). No significant associations occurred between CRT and sex or birth weight. The associations of chest CRT with age at assessment (r = -0.23; p < 0.01) and room temperature (r = 0.27; p < 0.01) were clinically not important. In conclusion, CRT in neonates needs to be validated further before it can be useful as a specific clinical sign of peripheral circulation.
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ISSN:0019-5456
0973-7693
DOI:10.1007/BF02752273