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- Title
Temporal effects of caffeine on intrapulmonary shunt in preterm ventilated infants.
- Authors
Kaltsogianni, Ourania; Bhat, Ravindra; Greenough, Anne; Dassios, Theodore
- Abstract
We hypothesized that caffeine would be associated with a transient reduction in the right-to-left shunt and VA/Q. We aimed to explore the temporal effects of caffeine on right-to-left shunt, ventilation perfusion ratio (VA/Q) and shift of the oxyhaemoglobin dissociation curve (ODC) in premature ventilated infants. Retrospective cohort study at a tertiary neonatal unit of infants born at less than 31 weeks of gestation that were mechanically ventilated on day three of life. The non-invasive method of the ODC was used to determine the right-to-left shunt, VA/Q and shift before and at 1, 4 and 20 h after a maintenance dose of caffeine citrate. A total of 21 infants were included with a median (range) gestational age of 27 (23.7–30.7) weeks. The median shunt percentage was significantly reduced, compared to baseline at 1 h (8 (range: 7–9) % vs. 4 (range: 0–6) %, p=0.042) and 4 h post caffeine administration (8 (range: 7–9) % vs. 0 (range: 0–3) %, p=0.042), but the VA/Q and the right shift of the ODC did not differ significantly between these time points. At 20 h, there were no significant differences between these indices compared to baseline values. Caffeine led to a transient decrease in intrapulmonary shunt from one to 4 h after administration and this may be due to its diuretic action.
- Subjects
CAFFEINE; SURGICAL anastomosis; HEMOGLOBINS; NEONATAL intensive care units; TREATMENT effectiveness; RETROSPECTIVE studies; NEONATAL intensive care; DESCRIPTIVE statistics; LONGITUDINAL method; ARTIFICIAL respiration; MEDICAL records; ACQUISITION of data; GESTATIONAL age; PERFUSION; EVALUATION; CHILDREN
- Publication
Journal of Perinatal Medicine, 2024, Vol 52, Issue 5, p556
- ISSN
0300-5577
- Publication type
Article
- DOI
10.1515/jpm-2023-0492