Digestive enzyme replacement relieves growth failure in preterm infants with poor exocrine pancreatic function: a retrospective case series.

In orally fed preterm infants, poor weight gain may be linked to low fecal pancreatic elastase-1 (FPE-1) activity, indicative of exocrine pancreatic insufficiency. The objective of this study was the retrospective assessment of the effect of exogenous digestive enzyme replacement by gavage in preterm infants with growth failure and low FPE-1 (<200 µg/g). We analyzed weight gain relative to baseline and caloric intake during 14-day periods before and after institution of digestive enzyme replacement containing 6000 U lipase and 240 U protease kg-1 d-1. Among 46 of 132 preterm infants < 1250g birth weight surviving to at least 14 days in whom FPE-1 was determined, 38 infants had low FPE-1 (< 200 µg/g), and 33 infants received exogenous digestive enzyme replacement. Average daily weight gain significantly increased from 14.4 [range 2.6-22.4] g kg-1 d-1 to 17.4 [8.4-29.0] g kg-1 d-1 (P = 0.001), as did weight gain per kcal, from 0.08 [0.02-0.13] g kcal-1 d-1 to 0.11 [0.05-0.18] g kcal-1 d-1.Conclusion: In preterm infants with signs and symptoms of exocrine pancreatic insufficiency, exogenous digestive enzyme replacement is associated with improved growth. What is Known: • Very preterm infants on full enteral nutrition may display growth failure linked to transient poor exocrine pancreatic function. • Porcine pancreatic enzymes covered with an acid-resistant coating are too large to pass the internal diameter of most gavage tubes used in very preterm infants. What is New: • Administration of a liquid formulation of acid-resistant microbial digestive enzymes in preterm infants with growth failure and low fecal pancreatic elastase-1 values was associated with improved weight gain. • Response to exogenous digestive enzyme replacement was associated with the prior extent of growth failure.

Protracted maturation of pancreatic-specific elastase 1 excretion in preterm infants of extremely low gestational age.

OBJECTIVES: The aim of the present study was to better understand the exocrine pancreatic function of extremely preterm infants. METHODS: Pancreatic-specific elastase 1 (PSE1) activity was determined in spot stool samples of 69 preterm infants of gestational age <32 weeks and birth weight <1250 g. Assays were conducted on samples collected at 2 (N = 56), 4 (N = 46), and 6 weeks of age (N = 23). RESULTS: PSE1 activity increased from week 2 (median [interquartile range] 84 [48-187] µg/g) to week 4 (164 [87-251 µg/g; P < 0.001) but not thereafter (169 [82-298] µg/g at week 6). The maturational increase in PSE1 activity was observed only in infants of gestational age <28 weeks (P < 0.001). At 2 weeks after birth, PSE1 levels were lower in infants of gestational age <28 weeks than in infants of gestational age ≥ 28 weeks (77 [43-110] vs 165 [56-300] µg/g; P = 0.019), but this difference was less pronounced at 4 weeks (153 [77-226] vs 230 [108-503] µg/g; P = 0.070) and had disappeared by 6 weeks (163 [76-258] vs 175 [85-418] µg/g; P = 0.576). In infants on full enteral feeding regimens 4 weeks after birth, PSE1 levels were associated with weight gain per unit of energy intake (Rs = 0.431; P = 0.005). This measure of weight gain was lower (P = 0.040) in infants with PSE1 levels <200 µg/g (0.110 [0.081-0.139] g/kcal, N = 25) than in those with PSE1 levels ≥ 200 µg/g (0.139 [0.117-0.157] g/kcal, N = 15). Administration of pancreatic enzymes to infants showing PSE1 excretion levels <200 µg/g did not enhance weight gain. CONCLUSIONS: : Extremely preterm infants have limited exocrine pancreatic function during the first weeks of life, which may contribute to growth failure.

End-of-life opioid administration on neonatal and pediatric intensive care units: nurses' attitudes and practice.

OBJECTIVES: (1) To compare caregivers attitudes on the use of end-of-life opioid analgesia in neonatal (NICU) and pediatric (PICU) intensive care units. (2) To investigate actual opioid administration to DR (delivery room), NICU and PICU patients in various end-of-life situations. METHODS: (1) Administration of an anonymous self-report questionnaire survey to nurses of 2 level III NICUs and 3 PICUs, presenting 5 hypothetical NICU and PICU patients in end-of-life situations. (2) Retrospective chart review of all deaths at the above mentioned DRs (served by NICU staff), NICUs and PICUs during the years 2008-2009. RESULTS: There was no difference between NICU and PICU nurses in self-proclaimed opioid administration in dying NICU or PICU patients with signs of pain (about 80%) or distress (about 65%). 35.0% of NICU and 44.5% of PICU nurses favoured opioid administration with the implicit aim of active intentional ending of life. Shortening of life as an adverse effect of end-of-life opioid analgesia was acceptable for the majority of PICU (94.5%) and NICU (87.0%) nurses. The rate of dying infants who actually had received opioids was similar in NICUs (41/74, 55.4%) and PICUs (40/68, 58.8%). In contrast, none of the neonates (n=24) who died under primary comfort care in the DR received opioids. CONCLUSIONS: End-of-life opioid administration to primary comfort care patients in the DR differs fundamentally from NICU or PICU handling of dying patients. Once patients are admitted to an intensive care unit, practice and attitudes towards end-of-life opioid administration are similar in NICUs and PICUs.