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A quality improvement project to improve admission temperatures in very low birth weight infants
1Department of Pediatrics, Stanford University, Stanford, CA 94143, USA. LeeHC@peds.ucsf.edu
Insights
A quality improvement project successfully increased admission temperatures for very low birth weight infants, demonstrating sustained improvements. This initiative reduced hypothermia risk without significantly impacting mortality or intraventricular hemorrhage rates.
Area of Science:
- Neonatal Medicine
- Quality Improvement Science
- Pediatric Critical Care
Background:
- Hypothermia is a significant risk factor for adverse outcomes in preterm newborns.
- Maintaining normothermia at admission is crucial for very low birth weight infants.
- Previous quality improvement initiatives have shown variable success in addressing neonatal hypothermia.
Purpose of the Study:
- To evaluate the effectiveness of a quality improvement project aimed at improving admission temperatures in very low birth weight infants.
- To assess the sustainability of temperature improvements over time.
- To examine the impact of the quality improvement project on mortality and intraventricular hemorrhage rates.
Main Methods:
- Retrospective chart review of very low birth weight infants (<1500 g) before and after project implementation.
- Interventions included staff education, polyethylene wraps, and chemical warming mattresses.
- Multivariable logistic regression was used to adjust for confounding variables.
Main Results:
- Mean admission temperature increased significantly from 35.4°C to 36.2°C post-intervention (P<0.0001).
- The improvement in temperature was sustained over a 15-month follow-up period.
- Risk-adjusted analysis identified the pre-intervention period as the strongest predictor of hypothermia; cesarean delivery was no longer a significant risk factor.
Conclusions:
- The quality improvement project effectively and persistently improved admission temperatures for very low birth weight infants.
- While no significant differences in mortality or intraventricular hemorrhage were detected, the study may have lacked power to identify smaller effects.
Objective:
To review the results of a quality improvement (QI) project to improve admission temperatures of very low birth weight inborn infants.
Study Design:
The neonatal intensive care unit at Lucile Packard Children's Hospital underwent a QI project to address hypothermic preterm newborns by staff education and implementing processes such as polyethylene wraps and chemical warming mattresses. We performed retrospective chart review of all inborn infants with birth weight <1500 g during the 18 months prior to (n=134) and 15 months after (n=170) the implementation period. Temperatures were compared between periods. Multivariable logistic regression was used to account for potential confounding variables. We compared mortality rates and grade 3 or 4 intraventricular hemorrhage rates between periods.
Result:
The mean temperature rose from 35.4 to 36.2 degrees C (P<0.0001) after the QI project. The improvement was consistent and persisted over a 15-month period. After risk adjustment, the strongest predictor of hypothermia was being born in the period before implementation of the QI project (odds ratio 8.12, 95% confidence interval 4.63, 14.22). Although cesarean delivery was a strong risk factor for hypothermia prior to the project, it was no longer significant after the project. There was no significant difference in death or intraventricular hemorrhage detected between periods.
Conclusion:
There was a significant improvement in admission temperatures after a QI project, which persisted beyond the initial implementation period. Although there was no difference in mortality or intraventricular hemorrhage rates, we did not have sufficient power to detect small differences in these outcomes.
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