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Observational Study
. 2020 Sep;40(9):1366-1374.
doi: 10.1038/s41372-020-0622-4. Epub 2020 Feb 20.

The effect of patent ductus arteriosus on coronary artery blood flow in premature infants: a prospective observational pilot study

Yulia Vaisbourd #  1 , Dawod Sharif #  2 , Arieh Riskin  3 , Liat Yaniv  2 , Gil Dinur  4 , Khalil Amen  2 , David Bader  3 , Amir Kugelman  4
Affiliations
Observational Study

The effect of patent ductus arteriosus on coronary artery blood flow in premature infants: a prospective observational pilot study

Yulia Vaisbourd et al. J Perinatol. 2020 Sep.

Abstract

Objective: To compare coronary flows between premature infants with and without hemodynamically significant patent ductus arteriosus (hsPDA) and to determine if coronary flow is influenced by medical PDA treatment.

Design: Prospective, observational pilot study. Forty-three infants <32 weeks gestation underwent echocardiography when routinely indicated. Study group included infants with hsPDA requiring treatment. Comparison groups included infants with nonsignificant PDA and infants without PDA.

Results: The study group (n = 13), compared with the comparison groups with nonsignificant PDA (n = 12) and without PDA (n = 18) had higher troponin levels (p = 0.003 and 0.004, respectively). In infants with hsPDA compared with infants with no PDA there was a significant increase in myocardial oxygen demand and decrease in left main coronary artery flow, with nonsignificant increase in cardiac output.

Conclusions: Decrease in coronary artery flows and higher troponin values may suggest a "steal effect," not allowing to meet the elevated myocardial oxygen demand in infants with hsPDA.

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Conflict of interest statement

The authors declare that they have no conflict of interest.

Figures

Fig. 1
Fig. 1. Recruitment chart.
Flow of premature infants inclusion process, exclusion criteria and partition into groups. IVH intraventricular hemmorhage, PDA patent ductus arteriosus.
See this image and copyright information in PMC

Comment in

References

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