Superior mesenteric artery Doppler is poor at predicting feed intolerance and NEC in preterm small for gestational age neonates
Journal of Maternal-Fetal and Neonatal Medicine, ISSN: 1476-7058, Vol: 26, Issue: 18, Page: 1855-1859
2013
- 14Citations
- 44Captures
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Metrics Details
- Citations14
- Citation Indexes14
- 14
- CrossRef10
- Captures44
- Readers44
- 44
Article Description
Objective: To study SMA Doppler for predicting feed intolerance and necrotizing enterocolitis (NEC) in preterm SGA neonates with umbilical artery absent/reversed end diastolic flow (A/REDF). Study design: Prospective study. Patients: SGA neonates <36 weeks born with antenatally diagnosed A/REDF formed cases. Those with normal Doppler formed controls. Primary outcomes were feed intolerance and NEC. Peak systolic velocity, end diastolic velocity (EDV), time-averaged mean velocity, pulsatility index and resistive index (RI) were measured in SMA Doppler done postnatally on days 1 and 5. Results: Fifty neonates were enrolled in each group. Gestation, birth weight, gender and Apgar scores were comparable. Feed intolerance rate was similar (A/REDF: 26% versus controls: 20%, p 0.48), NEC was commoner in A/REDF group (32% versus 4%, p<0.001). Baseline SMA Doppler indices were similar; RI on day 1 was higher in babies with A/REDF [5.4 (IQR 3.3, 7.3)] who developed NEC compared to controls [3.3 (IQR 1.7, 3.9)], (p 0.049). RI of 3.63 on day 1 had only a sensitivity of 61% and a specificity of 57% in predicting NEC in A/REDF group (area under curve (AUC) 0.61, 95% CI: 0.43-0.79, p=0.25). Similarly, EDV of 8.7cm/s had only a sensitivity of 61% and a specificity of 60% for the prediction of NEC (AUC of 0.64, 95% CI: 0.47-0.81, p=0.16). Conclusions: Postnatal SMA Doppler indices do not predict feed intolerance and NEC in preterm SGA babies with A/REDF. © 2013 Informa UK Ltd.
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Informa UK Limited
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