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Published on: January 27, 2019
Probiotics for preterm neonates: what will it take to change clinical practice?
N Ofek Shlomai1, G Deshpande, S Rao
1Department of Neonatal Paediatrics, KEM Hospital for Women, Perth, W.A., Australia.
Insights
Probiotic supplementation significantly reduces the risk of necrotizing enterocolitis (NEC) and mortality in preterm infants. Despite strong evidence, routine use is delayed, urging faster adoption for improved infant outcomes.
Area of Science:
- Neonatalogy
- Gastroenterology
- Pediatric Surgery
Background:
- Necrotizing enterocolitis (NEC) is a severe condition in preterm infants, leading to high mortality and significant morbidity.
- Infants requiring surgery for NEC face even higher mortality and long-term neurodevelopmental risks.
Purpose of the Study:
- To evaluate the efficacy of probiotic supplementation in preventing NEC and reducing mortality in preterm infants.
- To address the reluctance in adopting routine probiotic prophylaxis despite robust evidence.
Main Methods:
- Systematic reviews of randomized controlled trials (RCTs) were analyzed.
- Data from 25 RCTs (approx. 5,000 neonates) and routine use reports (approx. 3,000 neonates) were considered.
Main Results:
- Probiotics significantly reduce NEC risk (RR 0.39) and all-cause mortality (RR 0.52) in preterm infants.
- Adverse effects of probiotics are rare, and they facilitate enteral feeding.
Conclusions:
- The evidence for probiotic supplementation in preventing NEC is conclusive and robust.
- Routine probiotic prophylaxis should be adopted promptly to achieve zero tolerance for NEC, rather than awaiting further trials.
Abstract:
Necrotizing enterocolitis (NEC) is a major cause of mortality (25%) and morbidity including recurrent sepsis, dependence on parenteral nutrition, need for surgery, and survival with short bowel syndrome in preterm very low birth weight infants. Mortality (45-100%) and morbidity including the risk of long-term neurodevelopmental impairment are higher in extremely preterm infants needing surgery for NEC. Systematic reviews of randomized controlled trials (RCT) indicate that probiotics significantly reduce the risk of NEC (RR 0.39; 95% CI 0.29-0.52; p < 0.00001) and all-cause mortality (RR 0.52; 95% CI 0.40-0.69; p < 0.00001) while facilitating enteral feeds in preterm infants. At present, data from 25 RCT (∼5,000 neonates) and reports on routine use (∼3,000 neonates) indicates that significant adverse effects of probiotics are rare. Despite the robust evidence, there is still reluctance in incorporating routine probiotic prophylaxis in clinical practice. If the goal is to have zero tolerance for NEC, then probiotic prophylaxis must be adopted as soon as possible. Current gaps in knowledge can be addressed by continued research while providing routine probiotic supplementation. We believe that the concept of evidence-based practice of medicine has been stretched too far in this case. Trial sequential analysis has already shown that the evidence for probiotic supplementation was conclusive after 10 trials. Results of the ongoing trials are unlikely to change the conclusions of the systematic reviews significantly. Currently we are at trial number 25; how many more trials do we need? What will it take to change clinical practice?
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