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Relation of exhaled nitric oxide levels to development of bronchopulmonary dysplasia

Relation of exhaled nitric oxide levels to development of bronchopulmonary dysplasia
Relation of exhaled nitric oxide levels to development of bronchopulmonary dysplasia
Objective: To test the hypothesis that exhaled nitric oxide levels on day 28 and changes in exhaled nitric oxide levels in the neonatal period would differ according to whether infants developed bronchopulmonary dysplasia (BPD) and its severity.

Design: Prospective observational study.

Setting: Tertiary neonatal intensive care unit.

Patients: 80 infants (median gestational age 28, range 24–32 weeks), 46 of whom developed BPD.

Interventions: Exhaled nitric oxide measurements were attempted on days 3, 5, 7, 14, 21 and 28.

Main outcome measures: BPD (oxygen dependency at 28 days), mild BPD (oxygen dependent at 28 days, but not 36 weeks postmenstrual age (PMA)); moderate BPD (oxygen dependent at 36 weeks PMA) and severe BPD (respiratory support dependent at 36 weeks PMA).

Results: On day 28, exhaled nitric oxide levels were higher in infants with BPD compared to those without BPD (p<0.001) and there was a linear trend in exhaled nitric oxide results as BPD severity increased (p?=?0.006). No significances in the change in exhaled nitric oxide levels over the neonatal period were found between the four groups.

Conclusion: Exhaled nitric oxide levels are raised in infants with established BPD, particularly in those developing moderate or severe BPD, and may reflect ongoing inflammation.
1359-2998
F205-F209
May, C.
17697f8d-98f6-40d3-9cc0-022f04009ae4
Williams, O.
7a730b9c-196c-47f3-b35c-b0f902c398a0
Milner, A.D.
da715bc1-9e74-4053-bdad-9046eff6c326
Peacock, J.
1781aee1-ae33-47d3-8777-0c98f276f0ff
Rafferty, G.F.
37d10b07-9ae8-4029-9657-8599d057d1b7
Hannam, S.
6ba822cc-75cb-4b63-9bd8-8fcab370768f
Greenough, A.
8008d870-d219-4ebd-921b-c61d90573b98
May, C.
17697f8d-98f6-40d3-9cc0-022f04009ae4
Williams, O.
7a730b9c-196c-47f3-b35c-b0f902c398a0
Milner, A.D.
da715bc1-9e74-4053-bdad-9046eff6c326
Peacock, J.
1781aee1-ae33-47d3-8777-0c98f276f0ff
Rafferty, G.F.
37d10b07-9ae8-4029-9657-8599d057d1b7
Hannam, S.
6ba822cc-75cb-4b63-9bd8-8fcab370768f
Greenough, A.
8008d870-d219-4ebd-921b-c61d90573b98

May, C., Williams, O., Milner, A.D., Peacock, J., Rafferty, G.F., Hannam, S. and Greenough, A. (2009) Relation of exhaled nitric oxide levels to development of bronchopulmonary dysplasia. Archives of Disease in Childhood - Fetal and Neonatal Edition, 94 (3), F205-F209. (doi:10.1136/adc.2008.146589).

Record type: Article

Abstract

Objective: To test the hypothesis that exhaled nitric oxide levels on day 28 and changes in exhaled nitric oxide levels in the neonatal period would differ according to whether infants developed bronchopulmonary dysplasia (BPD) and its severity.

Design: Prospective observational study.

Setting: Tertiary neonatal intensive care unit.

Patients: 80 infants (median gestational age 28, range 24–32 weeks), 46 of whom developed BPD.

Interventions: Exhaled nitric oxide measurements were attempted on days 3, 5, 7, 14, 21 and 28.

Main outcome measures: BPD (oxygen dependency at 28 days), mild BPD (oxygen dependent at 28 days, but not 36 weeks postmenstrual age (PMA)); moderate BPD (oxygen dependent at 36 weeks PMA) and severe BPD (respiratory support dependent at 36 weeks PMA).

Results: On day 28, exhaled nitric oxide levels were higher in infants with BPD compared to those without BPD (p<0.001) and there was a linear trend in exhaled nitric oxide results as BPD severity increased (p?=?0.006). No significances in the change in exhaled nitric oxide levels over the neonatal period were found between the four groups.

Conclusion: Exhaled nitric oxide levels are raised in infants with established BPD, particularly in those developing moderate or severe BPD, and may reflect ongoing inflammation.

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More information

Submitted date: August 2008
Published date: May 2009

Identifiers

Local EPrints ID: 72621
URI: http://eprints.soton.ac.uk/id/eprint/72621
ISSN: 1359-2998
PURE UUID: 5c145712-b7e8-4209-bc48-c27cafb779d7
ORCID for C. May: ORCID iD orcid.org/0000-0002-0451-2690

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Date deposited: 23 Feb 2010
Last modified: 13 Mar 2024 21:36

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Contributors

Author: C. May ORCID iD
Author: O. Williams
Author: A.D. Milner
Author: J. Peacock
Author: G.F. Rafferty
Author: S. Hannam
Author: A. Greenough

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