71 Trends, Practice Patterns, and Opportunities for Improvement in Postnatal Steroids Use for Bronchopulmonary Dysplasia – Eleven Years Observational Study
Bibliographic record
Abstract
Abstract Background Postnatal steroids (PNS) use in preterm infants improves pulmonary function in a select subset of patients but can potentially increase the risk of spontaneous intestinal perforation and cerebral palsy. Despite national guidelines, reducing intra-centre variation and demonstrating responsible stewardship in PNS use have been challenging. Objectives To describe (i) PNS type, regimen, time of initiation, use over time, and identify opportunities for improving practices in the use of PNS for bronchopulmonary dysplasia (BPD); (ii) outcome at discharge for infants who received PNS. Design/Methods We conducted a retrospective observational study in a quaternary NICU that included infants born at <33 weeks gestational age who received PNS to prevent or treat BPD between 2011 and 2021. We initially identified all infants who received PNS from the pharmacy registry, followed by demographic, PNS use details, and outcome data collection from the Canadian Neonatal Network (CNN) database, discharge summaries and, occasionally, by reviewing individual charts. Results The mean (SD) gestational age and birth weight of 184 eligible infants were 25(24-26) weeks and 720(625-841) grams respectively. Based on timing of first course of PNS, 2(1.1%), 93(50.5%), 85(46.2%), and 4(2.2%) infants received PNS in early (E) (< 7 days), early evolving (EE) (7-28 days), late evolving (LE) (29 days – 36 + 6 weeks PMA), and established (Es) (≥ 37 weeks) phases, respectively. 157 (85.3%) infants received dexamethasone and 22 (12%) received hydrocortisone as the first PNS course. Infants in the EE group, when compared with the LE group, received more days and higher cumulative dose of PNS 13(10-28) vs. 10(10-16) p= 0.04, and 24(24-60) vs. 24(24-25) hydrocortisone equivalents in milligrams/kilograms, p=0.01, respectively. Two common regimens used at our centre were 10-day Dexamethasone: A Randomized Trial (DART) and 22-day tapering doses of hydrocortisone (STOP-BPD). Deviation from published protocols based on duration (±20%), dose (±10%) or timing was 66.7% and 33.3% with hydrocortisone and dexamethasone use. Dexamethasone usage remained stable, but a small increase in hydrocortisone use and the cumulative PNS dose received occurred over time. Survival, survival without major morbidity, moderate to severe BPD, and technology dependence at discharge were 87%, 1.6%, 90.8% and 66.9%, respectively. Identified opportunities for improvement were: adapting national guidelines to local context, creating order sets to reduce deviations, and using this study’s outcomes during PNS decision-making conversations with family. Conclusion Variation in the use of hydrocortisone was higher than for dexamethasone, and cumulative dose received per infant increased over time. Potential interventions to reduce variation in PNS use and optimize decision- making were identified.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.004 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.001 |
| Bibliometrics | 0.002 | 0.003 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".