Pharmacokinetics of Doxapram in Idiopathic Apnea ofPrematurity
Bibliographic record
Abstract
Pharmacokinetics of doxapram were determined in 13 infants with idiopathic apnea of prematurity uncontrolled by aminophylline and caffeine. Doxapram was maintained for 72-96 h at a constant infusion rate of 2-2.5 mg/kg/h. Plasma doxapram levels were measured by gas liquid chromatography. The infants studied had a birth weight of 1,247 +/- 240 g (mean +/- SD), a gestational age of 29.4 +/- 2 weeks and were 9.9 +/- 6 days old. Steady-state plasma doxapram levels reached by all infants averaged 5.8 +/- 1.8 mg/l. Half-life was 6.6 +/- 5.7 h, plasma clearance 0.44 +/- 0.1 litres/kg/h, and calculated volume of distribution 4 +/- 2.7 litres/kg. Doxapram controlled apnea successfully in 12 of 13 babies. A significant fall in PaCO2 and reduction in the rate of apnea was seen within 6-8 h with corresponding doxapram levels of 3.7 +/- 1.8 mg/l. The factors influencing the pharmacokinetics of doxapram in newborns are presently unknown.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 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".