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Type: Journal article
Title: Characterization of anorectal pressure and the anorectal inhibitory reflex in healthy preterm and term infants
Author: Benninga, M.
Omari, T.
Haslam, R.
Barnett, C.
Dent, J.
Davidson, G.
Citation: Journal of Pediatrics, 2001; 139(2):233-237
Publisher: Mosby Inc
Issue Date: 2001
ISSN: 0022-3476
Statement of
Marc A. Benninga, Taher I. Omari, Ross R. Haslam, Chris P. Barnett, John Dent and Geoff P. Davidson
Abstract: <h4>Objectives</h4>To evaluate anorectal motor function in healthy premature and term infants with the use of micromanometric techniques.<h4>Study design</h4>Anorectal manometry was performed in 22 healthy neonates (9 female) with a mean postmenstrual age of 32 weeks (range, 30 to 38 weeks) with a micromanometric anorectal assembly (od 2.0 mm). The assembly incorporated a 2-cm-long sleeve sensor for measurement of resting anal sphincter pressures and relaxation, and 4 sideholes recorded anal and rectal pressures. Rectal distension was performed with a latex balloon or direct air insufflation to elicit the anorectal inhibitory reflex (AR).<h4>Results</h4>The mean anal sphincter pressure, rectal pressure, and rhythmic wave frequency were 40 mm Hg (range, 7 to 65 mm Hg), 11 mm Hg (range, 1 to 27 mm Hg), and 10/min (range, 8 to 14/min), respectively. A normal AR could be elicited in 21 of the 22 infants studied.<h4>Conclusion</h4>An anorectal micromanometric sleeve catheter is suitable for use in evaluating anorectal pressures in preterm and term neonates. Insufflation of air without the use of a balloon to elicit the AR is reliable and suitable for use in infants <34 weeks. Premature infants older than 30 weeks' postmenstrual age have normal anorectal pressures and a normal AR.
Keywords: Humans
Analysis of Variance
Gestational Age
Infant, Newborn
Infant, Premature
Anal Canal
Description: Copyright © 2001 Academic Press. All rights reserved.
DOI: 10.1067/mpd.2001.115969
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Appears in Collections:Aurora harvest
Paediatrics publications

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