Ren CL, Slaven JE, Haas DM, Haneline LS, Tiller C, Hogg G, Bjerregaard J, Tepper RS. Forced expiratory flows and diffusion capacity in infants born from mothers with pre-eclampsia.
Pediatr Pulmonol 2022;
57:2481-2490. [PMID:
35796049 PMCID:
PMC9489632 DOI:
10.1002/ppul.26064]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 06/29/2022] [Accepted: 07/01/2022] [Indexed: 01/01/2023]
Abstract
RATIONALE
Animal models suggest pre-eclampsia (Pre-E) affects alveolar development, but data from humans are lacking.
OBJECTIVE
Assess the impact of Pre-E on airway function, diffusion capacity, and respiratory morbidity in preterm and term infants born from mothers with Pre-E.
METHODS
Infants born from mothers with and without Pre-E were recruited for this study; term and preterm infants were included in both cohorts. Respiratory morbidity in the first 12 months of life was assessed through monthly phone surveys. Raised volume rapid thoracoabdominal compression and measurement of diffusion capacity of the lung to carbon monoxide (DLCO) were performed at 6 months corrected age.
MEASUREMENTS AND MAIN RESULTS
There were 146 infants in the Pre-E cohort and 143 in the control cohort. The Pre-E cohort was further divided into nonsevere (N = 41) and severe (N = 105) groups. There was no significant difference in DLCO and DLCO/alveolar volume among the three groups. Forced vital capacity was similar among the three groups, but the nonsevere Pre-E group had significantly higher forced expiratory flows than the other two groups. After adjusting for multiple covariates including prematurity, the severe Pre-E group had a lower risk for wheezing in the first year of life compared to the other two groups.
CONCLUSIONS
Pre-E is not associated with reduced DLCO, lower forced expiratory flows, or increased wheezing in the first year of life. These results differ from animal models and highlight the complex relationships between Pre-E and lung function and respiratory morbidity in human infants.
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